Optimise lie algebra project

BLAS_benchmark/BatchBlasBench.cc

@@ -12,13 +12,15 @@
 #include <iostream>
 #include <sys/time.h>
 
+#define GRID_SYCL
+#undef  GRID_HIP
+#undef  GRID_CUDA
 
 #ifdef GRID_HIP
 #include <hipblas/hipblas.h>
 #endif
 #ifdef GRID_CUDA
 #include <cublas_v2.h>
-
 #endif
 #ifdef GRID_SYCL
 #include <oneapi/mkl.hpp>
@@ -43,90 +45,6 @@ inline void acceleratorFreeDevice(void *ptr,size_t bytes){free(ptr,*theAccelerat
 inline void acceleratorMemSet(void *base,int value,size_t bytes) { theAccelerator->memset(base,value,bytes); theAccelerator->wait();}
 inline void acceleratorCopyToDevice(void *from,void *to,size_t bytes)  { theAccelerator->memcpy(to,from,bytes); theAccelerator->wait();}
 inline void acceleratorCopyFromDevice(void *from,void *to,size_t bytes){ theAccelerator->memcpy(to,from,bytes); theAccelerator->wait();}
-#define accelerator_barrier(dummy) { theAccelerator->wait(); }
-#endif
-
-#ifdef GRID_HIP
-hipStream_t copyStream;
-hipStream_t computeStream;
-void acceleratorInit(void)
-{
-  int device = 0;
-  auto discard = hipSetDevice(device);
-  discard = hipStreamCreate(&copyStream);
-  discard = hipStreamCreate(&computeStream);
-  printf("AcceleratorHIPInit\n");
-}
-inline void *acceleratorAllocDevice(size_t bytes)
-{
-  void *ptr=NULL;
-  auto err = hipMalloc((void **)&ptr,bytes);
-  if( err != hipSuccess ) {
-    ptr = (void *) NULL;
-    fprintf(stderr," hipMalloc failed for %ld %s \n",bytes,hipGetErrorString(err)); fflush(stderr);
-  }
-  return ptr;
-};
-inline void acceleratorFreeDevice(void *ptr,size_t bytes){ auto discard=hipFree(ptr);};
-inline void acceleratorFreeDevice(void *ptr){ auto discard=hipFree(ptr);};
-inline void acceleratorMemSet(void *base,int value,size_t bytes) { auto discard=hipMemset(base,value,bytes);}
-inline void acceleratorCopyToDevice(void *from,void *to,size_t bytes)  { auto discard=hipMemcpy(to,from,bytes, hipMemcpyHostToDevice);}
-inline void acceleratorCopyFromDevice(void *from,void *to,size_t bytes){ auto discard=hipMemcpy(to,from,bytes, hipMemcpyDeviceToHost);}
-#define accelerator_barrier(dummy)				\
-  {								\
-    auto tmp=hipStreamSynchronize(computeStream);		\
-    auto err = hipGetLastError();				\
-    if ( err != hipSuccess ) {					\
-      printf("After hipDeviceSynchronize() : HIP error %s \n", hipGetErrorString( err )); \
-      puts(__FILE__);							\
-      printf("Line %d\n",__LINE__);				\
-      exit(0);							\
-    }								\
-  }
-
-#endif
-
-#ifdef GRID_CUDA
-cudaStream_t copyStream;
-cudaStream_t computeStream;
-void acceleratorInit(void)
-{
-  int device = 0;
-  cudaSetDevice(device);
-  cudaStreamCreate(&copyStream);
-  cudaStreamCreate(&computeStream);
-}
-inline void *acceleratorAllocDevice(size_t bytes)
-{
-  void *ptr=NULL;
-  auto err = cudaMalloc((void **)&ptr,bytes);
-  if( err != cudaSuccess ) {
-    ptr = (void *) NULL;
-    printf(" cudaMalloc failed for %d %s \n",bytes,cudaGetErrorString(err));
-  }
-  return ptr;
-};
-inline void acceleratorFreeShared(void *ptr){ cudaFree(ptr);};
-inline void acceleratorFreeDevice(void *ptr){ cudaFree(ptr);};
-inline void acceleratorCopyToDevice(void *from,void *to,size_t bytes)  { cudaMemcpy(to,from,bytes, cudaMemcpyHostToDevice);}
-inline void acceleratorCopyFromDevice(void *from,void *to,size_t bytes){ cudaMemcpy(to,from,bytes, cudaMemcpyDeviceToHost);}
-inline void acceleratorMemSet(void *base,int value,size_t bytes) { cudaMemset(base,value,bytes);}
-#define accelerator_barrier(dummy)					\
-  {									\
-    cudaStreamSynchronize(computeStream);				\
-    cudaError err = cudaGetLastError();					\
-    if ( cudaSuccess != err ) {						\
-      printf("accelerator_barrier(): Cuda error %s \n",			\
-	     cudaGetErrorString( err ));				\
-      printf("File %s Line %d\n",__FILE__,__LINE__);			\
-      fflush(stdout);							\
-      if (acceleratorAbortOnGpuError) assert(err==cudaSuccess);		\
-    }									\
-  }
-
-#endif
-
-
 template<class T> void acceleratorPut(T& dev,T&host)
 {
   acceleratorCopyToDevice(&host,&dev,sizeof(T));
@@ -137,6 +55,9 @@ template<class T> T acceleratorGet(T& dev)
   acceleratorCopyFromDevice(&dev,&host,sizeof(T));
   return host;
 }
+#define accelerator_barrier(dummy) { theAccelerator->wait(); }
+#endif
+
 
 /**************************************************************
  * Allocator
@@ -289,270 +210,7 @@ public:
     gridblasHandle->wait();
 #endif
   }
-
-
-  /////////////////////////////////////////////////////////////
-  // Single matrix GEMM -- fp64 and fp32
-  /////////////////////////////////////////////////////////////
-  void gemm(GridBLASOperation_t OpA,
-	    GridBLASOperation_t OpB,
-	    int m,int n, int k,
-	    ComplexD alpha,
-	    ComplexD* Amk,  // Device pointer
-	    ComplexD* Bkn,
-	    ComplexD beta,
-	    ComplexD* Cmn)
-  {
-    RealD t2=usecond();
-
-    assert(OpA!=GridBLAS_OP_T); // Complex case expect no transpose
-    assert(OpB!=GridBLAS_OP_T);
-
-    int lda = m; // m x k column major
-    int ldb = k; // k x n column major
-    int ldc = m; // m x b column major
-    if(OpA!=GridBLAS_OP_N)
-      lda = k;
-    if(OpB!=GridBLAS_OP_N)
-      ldb = n;
-    
-    static deviceVector<ComplexD> alpha_p(1);
-    static deviceVector<ComplexD> beta_p(1);
-    // can prestore the 1 and the zero on device
-    acceleratorCopyToDevice((void *)&alpha,(void *)&alpha_p[0],sizeof(ComplexD));
-    acceleratorCopyToDevice((void *)&beta ,(void *)&beta_p[0],sizeof(ComplexD));
-    RealD t0=usecond();
-
-#ifdef GRID_HIP
-    hipblasOperation_t hOpA;
-    hipblasOperation_t hOpB;
-    if ( OpA == GridBLAS_OP_N ) hOpA = HIPBLAS_OP_N;
-    if ( OpA == GridBLAS_OP_T ) hOpA = HIPBLAS_OP_T;
-    if ( OpA == GridBLAS_OP_C ) hOpA = HIPBLAS_OP_C;
-    if ( OpB == GridBLAS_OP_N ) hOpB = HIPBLAS_OP_N;
-    if ( OpB == GridBLAS_OP_T ) hOpB = HIPBLAS_OP_T;
-    if ( OpB == GridBLAS_OP_C ) hOpB = HIPBLAS_OP_C;
-    auto err = hipblasZgemm(gridblasHandle,
-			    hOpA,
-			    hOpB,
-			    m,n,k,
-			    (hipblasDoubleComplex *) &alpha_p[0],
-			    (hipblasDoubleComplex *) Amk, lda,
-			    (hipblasDoubleComplex *) Bkn, ldb,
-			    (hipblasDoubleComplex *) &beta_p[0],
-			    (hipblasDoubleComplex *) Cmn, ldc);
-    assert(err==HIPBLAS_STATUS_SUCCESS);
-#endif
-#ifdef GRID_CUDA
-    cublasOperation_t hOpA;
-    cublasOperation_t hOpB;
-    if ( OpA == GridBLAS_OP_N ) hOpA = CUBLAS_OP_N;
-    if ( OpA == GridBLAS_OP_T ) hOpA = CUBLAS_OP_T;
-    if ( OpA == GridBLAS_OP_C ) hOpA = CUBLAS_OP_C;
-    if ( OpB == GridBLAS_OP_N ) hOpB = CUBLAS_OP_N;
-    if ( OpB == GridBLAS_OP_T ) hOpB = CUBLAS_OP_T;
-    if ( OpB == GridBLAS_OP_C ) hOpB = CUBLAS_OP_C;
-    auto err = cublasZgemm(gridblasHandle,
-			   hOpA,
-			   hOpB,
-			   m,n,k,
-			   (cuDoubleComplex *) &alpha_p[0],
-			   (cuDoubleComplex *) Amk, lda,
-			   (cuDoubleComplex *) Bkn, ldb,
-			   (cuDoubleComplex *) &beta_p[0],
-			   (cuDoubleComplex *) Cmn, ldc);
-    assert(err==CUBLAS_STATUS_SUCCESS);
-#endif
-#ifdef GRID_SYCL
-      int64_t m64=m;
-      int64_t n64=n;
-      int64_t k64=k;
-      int64_t lda64=lda;
-      int64_t ldb64=ldb;
-      int64_t ldc64=ldc;
-
-      oneapi::mkl::transpose iOpA;
-      oneapi::mkl::transpose iOpB;
-      
-      if ( OpA == GridBLAS_OP_N ) iOpA = oneapi::mkl::transpose::N;
-      if ( OpA == GridBLAS_OP_T ) iOpA = oneapi::mkl::transpose::T;
-      if ( OpA == GridBLAS_OP_C ) iOpA = oneapi::mkl::transpose::C;
-      if ( OpB == GridBLAS_OP_N ) iOpB = oneapi::mkl::transpose::N;
-      if ( OpB == GridBLAS_OP_T ) iOpB = oneapi::mkl::transpose::T;
-      if ( OpB == GridBLAS_OP_C ) iOpB = oneapi::mkl::transpose::C;
-
-      oneapi::mkl::blas::column_major::gemm(*gridblasHandle,
-					    iOpA,
-					    iOpB,
-					    m64,n64,k64,
-					    (ComplexD *) &alpha_p[0],
-					    (const ComplexD *)Amk, (int64_t )lda64,
-					    (const ComplexD *)Bkn, (int64_t )ldb64,
-					    (ComplexD *) &beta_p[0],
-					    (ComplexD *)Cmn, (int64_t)ldc64);
-      synchronise();
-#endif
-#if !defined(GRID_SYCL) && !defined(GRID_CUDA) && !defined(GRID_HIP)
-    // Need a default/reference implementation; use Eigen
-      if ( (OpA == GridBLAS_OP_N ) && (OpB == GridBLAS_OP_N) ) {
-	Eigen::Map<Eigen::MatrixXcd> eAmk(Amk,m,k);
-	Eigen::Map<Eigen::MatrixXcd> eBkn(Bkn,k,n);
-	Eigen::Map<Eigen::MatrixXcd> eCmn(Cmn,m,n);
-	eCmn = beta * eCmn + alpha * eAmk * eBkn ;
-      } else if ( (OpA == GridBLAS_OP_C ) && (OpB == GridBLAS_OP_N) ) {
-	Eigen::Map<Eigen::MatrixXcd> eAmk(Amk,k,m);
-	Eigen::Map<Eigen::MatrixXcd> eBkn(Bkn,k,n);
-	Eigen::Map<Eigen::MatrixXcd> eCmn(Cmn,m,n);
-	eCmn = beta * eCmn + alpha * eAmk.adjoint() * eBkn ;
-      } else if ( (OpA == GridBLAS_OP_N ) && (OpB == GridBLAS_OP_C) ) {
-	Eigen::Map<Eigen::MatrixXcd> eAmk(Amk,m,k);
-	Eigen::Map<Eigen::MatrixXcd> eBkn(Bkn,n,k);
-	Eigen::Map<Eigen::MatrixXcd> eCmn(Cmn,m,n);
-	eCmn = beta * eCmn + alpha * eAmk * eBkn.adjoint() ;
-      } else if ( (OpA == GridBLAS_OP_C ) && (OpB == GridBLAS_OP_C) ) {
-	Eigen::Map<Eigen::MatrixXcd> eAmk(Amk,k,m);
-	Eigen::Map<Eigen::MatrixXcd> eBkn(Bkn,n,k);
-	Eigen::Map<Eigen::MatrixXcd> eCmn(Cmn,m,n);
-	eCmn = beta * eCmn + alpha * eAmk.adjoint() * eBkn.adjoint() ;
-      } else { 
-	assert(0);
-      }
-#endif
-     RealD t1=usecond();
-     RealD flops = 8.0*m*n*k;
-     RealD bytes = 1.0*sizeof(ComplexD)*(m*k+k*n+m*n);
-  }
-  void gemm(GridBLASOperation_t OpA,
-	    GridBLASOperation_t OpB,
-	    int m,int n, int k,
-	    ComplexF alpha,
-	    ComplexF* Amk,  // Device pointer
-	    ComplexF* Bkn,
-	    ComplexF beta,
-	    ComplexF* Cmn)
-  {
-    RealD t2=usecond();
-
-    assert(OpA!=GridBLAS_OP_T); // Complex case expect no transpose
-    assert(OpB!=GridBLAS_OP_T);
-
-    int lda = m; // m x k column major
-    int ldb = k; // k x n column major
-    int ldc = m; // m x b column major
-    if(OpA!=GridBLAS_OP_N)
-      lda = k;
-    if(OpB!=GridBLAS_OP_N)
-      ldb = n;
-    
-    static deviceVector<ComplexF> alpha_p(1);
-    static deviceVector<ComplexF> beta_p(1);
-    // can prestore the 1 and the zero on device
-    acceleratorCopyToDevice((void *)&alpha,(void *)&alpha_p[0],sizeof(ComplexF));
-    acceleratorCopyToDevice((void *)&beta ,(void *)&beta_p[0],sizeof(ComplexF));
-    RealD t0=usecond();
-
-#ifdef GRID_HIP
-    hipblasOperation_t hOpA;
-    hipblasOperation_t hOpB;
-    if ( OpA == GridBLAS_OP_N ) hOpA = HIPBLAS_OP_N;
-    if ( OpA == GridBLAS_OP_T ) hOpA = HIPBLAS_OP_T;
-    if ( OpA == GridBLAS_OP_C ) hOpA = HIPBLAS_OP_C;
-    if ( OpB == GridBLAS_OP_N ) hOpB = HIPBLAS_OP_N;
-    if ( OpB == GridBLAS_OP_T ) hOpB = HIPBLAS_OP_T;
-    if ( OpB == GridBLAS_OP_C ) hOpB = HIPBLAS_OP_C;
-    auto err = hipblasCgemm(gridblasHandle,
-			    hOpA,
-			    hOpB,
-			    m,n,k,
-			    (hipblasComplex *) &alpha_p[0],
-			    (hipblasComplex *) Amk, lda,
-			    (hipblasComplex *) Bkn, ldb,
-			    (hipblasComplex *) &beta_p[0],
-			    (hipblasComplex *) Cmn, ldc);
-    assert(err==HIPBLAS_STATUS_SUCCESS);
-#endif
-#ifdef GRID_CUDA
-    cublasOperation_t hOpA;
-    cublasOperation_t hOpB;
-    if ( OpA == GridBLAS_OP_N ) hOpA = CUBLAS_OP_N;
-    if ( OpA == GridBLAS_OP_T ) hOpA = CUBLAS_OP_T;
-    if ( OpA == GridBLAS_OP_C ) hOpA = CUBLAS_OP_C;
-    if ( OpB == GridBLAS_OP_N ) hOpB = CUBLAS_OP_N;
-    if ( OpB == GridBLAS_OP_T ) hOpB = CUBLAS_OP_T;
-    if ( OpB == GridBLAS_OP_C ) hOpB = CUBLAS_OP_C;
-    auto err = cublasCgemm(gridblasHandle,
-			   hOpA,
-			   hOpB,
-			   m,n,k,
-			   (cuComplex *) &alpha_p[0],
-			   (cuComplex *) Amk, lda,
-			   (cuComplex *) Bkn, ldb,
-			   (cuComplex *) &beta_p[0],
-			   (cuComplex *) Cmn, ldc);
-    assert(err==CUBLAS_STATUS_SUCCESS);
-#endif
-#ifdef GRID_SYCL
-      int64_t m64=m;
-      int64_t n64=n;
-      int64_t k64=k;
-      int64_t lda64=lda;
-      int64_t ldb64=ldb;
-      int64_t ldc64=ldc;
-
-      oneapi::mkl::transpose iOpA;
-      oneapi::mkl::transpose iOpB;
-      
-      if ( OpA == GridBLAS_OP_N ) iOpA = oneapi::mkl::transpose::N;
-      if ( OpA == GridBLAS_OP_T ) iOpA = oneapi::mkl::transpose::T;
-      if ( OpA == GridBLAS_OP_C ) iOpA = oneapi::mkl::transpose::C;
-      if ( OpB == GridBLAS_OP_N ) iOpB = oneapi::mkl::transpose::N;
-      if ( OpB == GridBLAS_OP_T ) iOpB = oneapi::mkl::transpose::T;
-      if ( OpB == GridBLAS_OP_C ) iOpB = oneapi::mkl::transpose::C;
-
-      oneapi::mkl::blas::column_major::gemm(*gridblasHandle,
-					    iOpA,
-					    iOpB,
-					    m64,n64,k64,
-					    (ComplexF *) &alpha_p[0],
-					    (const ComplexF *)Amk, (int64_t )lda64,
-					    (const ComplexF *)Bkn, (int64_t )ldb64,
-					    (ComplexF *) &beta_p[0],
-					    (ComplexF *)Cmn, (int64_t )ldc64);
-      synchronise();
-#endif
-#if !defined(GRID_SYCL) && !defined(GRID_CUDA) && !defined(GRID_HIP)
-    // Need a default/reference implementation; use Eigen
-      if ( (OpA == GridBLAS_OP_N ) && (OpB == GridBLAS_OP_N) ) {
-	Eigen::Map<Eigen::MatrixXcf> eAmk(Amk,m,k);
-	Eigen::Map<Eigen::MatrixXcf> eBkn(Bkn,k,n);
-	Eigen::Map<Eigen::MatrixXcf> eCmn(Cmn,m,n);
-	eCmn = beta * eCmn + alpha * eAmk * eBkn ;
-      } else if ( (OpA == GridBLAS_OP_C ) && (OpB == GridBLAS_OP_N) ) {
-	Eigen::Map<Eigen::MatrixXcf> eAmk(Amk,k,m);
-	Eigen::Map<Eigen::MatrixXcf> eBkn(Bkn,k,n);
-	Eigen::Map<Eigen::MatrixXcf> eCmn(Cmn,m,n);
-	eCmn = beta * eCmn + alpha * eAmk.adjoint() * eBkn ;
-      } else if ( (OpA == GridBLAS_OP_N ) && (OpB == GridBLAS_OP_C) ) {
-	Eigen::Map<Eigen::MatrixXcf> eAmk(Amk,m,k);
-	Eigen::Map<Eigen::MatrixXcf> eBkn(Bkn,n,k);
-	Eigen::Map<Eigen::MatrixXcf> eCmn(Cmn,m,n);
-	eCmn = beta * eCmn + alpha * eAmk * eBkn.adjoint() ;
-      } else if ( (OpA == GridBLAS_OP_C ) && (OpB == GridBLAS_OP_C) ) {
-	Eigen::Map<Eigen::MatrixXcf> eAmk(Amk,k,m);
-	Eigen::Map<Eigen::MatrixXcf> eBkn(Bkn,n,k);
-	Eigen::Map<Eigen::MatrixXcf> eCmn(Cmn,m,n);
-	eCmn = beta * eCmn + alpha * eAmk.adjoint() * eBkn.adjoint() ;
-      } else { 
-	assert(0);
-      }
-#endif
-     RealD t1=usecond();
-     RealD flops = 8.0*m*n*k;
-     RealD bytes = 1.0*sizeof(ComplexF)*(m*k+k*n+m*n);
-  }
-
   
-  /////////////////////////////////////////////////////////////
   void gemmBatched(int m,int n, int k,
 		   ComplexD alpha,
 		   deviceVector<ComplexD*> &Amk,  // pointer list to matrices
@@ -583,6 +241,36 @@ public:
 		beta,
 		Cmn);
   }
+  void gemmBatched(int m,int n, int k,
+		   RealD alpha,
+		   deviceVector<RealD*> &Amk,  // pointer list to matrices
+		   deviceVector<RealD*> &Bkn,
+		   RealD beta,
+		   deviceVector<RealD*> &Cmn)
+  {
+    gemmBatched(GridBLAS_OP_N,GridBLAS_OP_N,
+		m,n,k,
+		alpha,
+		Amk,
+		Bkn,
+		beta,
+		Cmn);
+  }
+  void gemmBatched(int m,int n, int k,
+		   RealF alpha,
+		   deviceVector<RealF*> &Amk,  // pointer list to matrices
+		   deviceVector<RealF*> &Bkn,
+		   RealF beta,
+		   deviceVector<RealF*> &Cmn)
+  {
+    gemmBatched(GridBLAS_OP_N,GridBLAS_OP_N,
+		m,n,k,
+		alpha,
+		Amk,
+		Bkn,
+		beta,
+		Cmn);
+  }
 
   void gemmBatched(GridBLASOperation_t OpA,
 		   GridBLASOperation_t OpB,
@@ -935,6 +623,301 @@ public:
      RealD flops = 8.0*m*n*k*batchCount;
      RealD bytes = 1.0*sizeof(ComplexF)*(m*k+k*n+m*n)*batchCount;
   }
+  
+  ///////////////////////////////////////////////////////////////////////////
+  // Single precision real GEMM
+  ///////////////////////////////////////////////////////////////////////////
+
+  void gemmBatched(GridBLASOperation_t OpA,
+		   GridBLASOperation_t OpB,
+		   int m,int n, int k,
+		   RealF alpha,
+		   deviceVector<RealF*> &Amk,  // pointer list to matrices
+		   deviceVector<RealF*> &Bkn,
+		   RealF beta,
+		   deviceVector<RealF*> &Cmn)
+  {
+    RealD t2=usecond();
+    int32_t batchCount = Amk.size();
+
+    assert(OpA!=GridBLAS_OP_C); // Real case no conjugate
+    assert(OpB!=GridBLAS_OP_C);
+
+    int lda = m; // m x k column major
+    int ldb = k; // k x n column major
+    int ldc = m; // m x b column major
+    if(OpA!=GridBLAS_OP_N)
+      lda = k;
+    if(OpB!=GridBLAS_OP_N)
+      ldb = n;
+    static deviceVector<RealF> alpha_p(1);
+    static deviceVector<RealF> beta_p(1);
+    // can prestore the 1 and the zero on device
+    acceleratorCopyToDevice((void *)&alpha,(void *)&alpha_p[0],sizeof(RealF));
+    acceleratorCopyToDevice((void *)&beta ,(void *)&beta_p[0],sizeof(RealF));
+    RealD t0=usecond();
+
+    assert(Bkn.size()==batchCount);
+    assert(Cmn.size()==batchCount);
+#ifdef GRID_HIP
+    hipblasOperation_t hOpA;
+    hipblasOperation_t hOpB;
+    if ( OpA == GridBLAS_OP_N ) hOpA = HIPBLAS_OP_N;
+    if ( OpA == GridBLAS_OP_T ) hOpA = HIPBLAS_OP_T;
+    if ( OpA == GridBLAS_OP_C ) hOpA = HIPBLAS_OP_C;
+    if ( OpB == GridBLAS_OP_N ) hOpB = HIPBLAS_OP_N;
+    if ( OpB == GridBLAS_OP_T ) hOpB = HIPBLAS_OP_T;
+    if ( OpB == GridBLAS_OP_C ) hOpB = HIPBLAS_OP_C;
+    auto err = hipblasSgemmBatched(gridblasHandle,
+				   hOpA,
+				   hOpB,
+				   m,n,k,
+				   (float *) &alpha_p[0],
+				   (float **)&Amk[0], lda,
+				   (float **)&Bkn[0], ldb,
+				   (float *) &beta_p[0],
+				   (float **)&Cmn[0], ldc,
+				   batchCount);
+    assert(err==HIPBLAS_STATUS_SUCCESS);
+#endif
+#ifdef GRID_CUDA
+    cublasOperation_t hOpA;
+    cublasOperation_t hOpB;
+    if ( OpA == GridBLAS_OP_N ) hOpA = CUBLAS_OP_N;
+    if ( OpA == GridBLAS_OP_T ) hOpA = CUBLAS_OP_T;
+    if ( OpA == GridBLAS_OP_C ) hOpA = CUBLAS_OP_C;
+    if ( OpB == GridBLAS_OP_N ) hOpB = CUBLAS_OP_N;
+    if ( OpB == GridBLAS_OP_T ) hOpB = CUBLAS_OP_T;
+    if ( OpB == GridBLAS_OP_C ) hOpB = CUBLAS_OP_C;
+    auto err = cublasSgemmBatched(gridblasHandle,
+				  hOpA,
+				  hOpB,
+				  m,n,k,
+				  (float *) &alpha_p[0],
+				  (float **)&Amk[0], lda,
+				  (float **)&Bkn[0], ldb,
+				  (float *) &beta_p[0],
+				  (float **)&Cmn[0], ldc,
+				  batchCount);
+    assert(err==CUBLAS_STATUS_SUCCESS);
+#endif
+#ifdef GRID_SYCL
+      int64_t m64=m;
+      int64_t n64=n;
+      int64_t k64=k;
+      int64_t lda64=lda;
+      int64_t ldb64=ldb;
+      int64_t ldc64=ldc;
+      int64_t batchCount64=batchCount;
+
+      oneapi::mkl::transpose iOpA;
+      oneapi::mkl::transpose iOpB;
+      
+      if ( OpA == GridBLAS_OP_N ) iOpA = oneapi::mkl::transpose::N;
+      if ( OpA == GridBLAS_OP_T ) iOpA = oneapi::mkl::transpose::T;
+      if ( OpA == GridBLAS_OP_C ) iOpA = oneapi::mkl::transpose::C;
+      if ( OpB == GridBLAS_OP_N ) iOpB = oneapi::mkl::transpose::N;
+      if ( OpB == GridBLAS_OP_T ) iOpB = oneapi::mkl::transpose::T;
+      if ( OpB == GridBLAS_OP_C ) iOpB = oneapi::mkl::transpose::C;
+
+      oneapi::mkl::blas::column_major::gemm_batch(*gridblasHandle,
+						  &iOpA,
+						  &iOpB,
+						  &m64,&n64,&k64,
+						  (float *) &alpha_p[0],
+						  (const float **)&Amk[0], (const int64_t *)&lda64,
+						  (const float **)&Bkn[0], (const int64_t *)&ldb64,
+						  (float *) &beta_p[0],
+						  (float **)&Cmn[0], (const int64_t *)&ldc64,
+						  (int64_t)1,&batchCount64,std::vector<sycl::event>());
+      synchronise();
+#endif
+#if !defined(GRID_SYCL) && !defined(GRID_CUDA) && !defined(GRID_HIP)
+    // Need a default/reference implementation; use Eigen
+      if ( (OpA == GridBLAS_OP_N ) && (OpB == GridBLAS_OP_N) ) {
+	thread_for (p, batchCount, {
+	  Eigen::Map<Eigen::MatrixXf> eAmk(Amk[p],m,k);
+	  Eigen::Map<Eigen::MatrixXf> eBkn(Bkn[p],k,n);
+	  Eigen::Map<Eigen::MatrixXf> eCmn(Cmn[p],m,n);
+	  eCmn = beta * eCmn + alpha * eAmk * eBkn ;
+	  });
+      } else if ( (OpA == GridBLAS_OP_T ) && (OpB == GridBLAS_OP_N) ) {
+	thread_for (p, batchCount, {
+	  Eigen::Map<Eigen::MatrixXf> eAmk(Amk[p],k,m);
+	  Eigen::Map<Eigen::MatrixXf> eBkn(Bkn[p],k,n);
+	  Eigen::Map<Eigen::MatrixXf> eCmn(Cmn[p],m,n);
+	  eCmn = beta * eCmn + alpha * eAmk.transpose() * eBkn ;
+	  });
+      } else if ( (OpA == GridBLAS_OP_N ) && (OpB == GridBLAS_OP_T) ) {
+	thread_for (p, batchCount, {
+	  Eigen::Map<Eigen::MatrixXf> eAmk(Amk[p],m,k);
+	  Eigen::Map<Eigen::MatrixXf> eBkn(Bkn[p],n,k);
+	  Eigen::Map<Eigen::MatrixXf> eCmn(Cmn[p],m,n);
+	  eCmn = beta * eCmn + alpha * eAmk * eBkn.transpose() ;
+	  });
+      } else if ( (OpA == GridBLAS_OP_T ) && (OpB == GridBLAS_OP_T) ) {
+	thread_for (p, batchCount, {
+	  Eigen::Map<Eigen::MatrixXf> eAmk(Amk[p],k,m);
+	  Eigen::Map<Eigen::MatrixXf> eBkn(Bkn[p],n,k);
+	  Eigen::Map<Eigen::MatrixXf> eCmn(Cmn[p],m,n);
+	  eCmn = beta * eCmn + alpha * eAmk.transpose() * eBkn.transpose() ;
+	  } );
+      } else { 
+	assert(0);
+      }
+#endif
+     RealD t1=usecond();
+     RealD flops = 2.0*m*n*k*batchCount;
+     RealD bytes = 1.0*sizeof(RealF)*(m*k+k*n+m*n)*batchCount;
+  }
+  
+  
+  ///////////////////////////////////////////////////////////////////////////
+  // Double precision real GEMM
+  ///////////////////////////////////////////////////////////////////////////
+  void gemmBatched(GridBLASOperation_t OpA,
+		   GridBLASOperation_t OpB,
+		   int m,int n, int k,
+		   RealD alpha,
+		   deviceVector<RealD*> &Amk,  // pointer list to matrices
+		   deviceVector<RealD*> &Bkn,
+		   RealD beta,
+		   deviceVector<RealD*> &Cmn)
+  {
+    RealD t2=usecond();
+    int32_t batchCount = Amk.size();
+
+    assert(OpA!=GridBLAS_OP_C); // Real case no conjugate
+    assert(OpB!=GridBLAS_OP_C);
+
+    int lda = m; // m x k column major
+    int ldb = k; // k x n column major
+    int ldc = m; // m x b column major
+    if(OpA!=GridBLAS_OP_N)
+      lda = k;
+    if(OpB!=GridBLAS_OP_N)
+      ldb = n;
+    
+    static deviceVector<RealD> alpha_p(1);
+    static deviceVector<RealD> beta_p(1);
+    // can prestore the 1 and the zero on device
+    acceleratorCopyToDevice((void *)&alpha,(void *)&alpha_p[0],sizeof(RealD));
+    acceleratorCopyToDevice((void *)&beta ,(void *)&beta_p[0],sizeof(RealD));
+    RealD t0=usecond();
+
+    assert(Bkn.size()==batchCount);
+    assert(Cmn.size()==batchCount);
+#ifdef GRID_HIP
+    hipblasOperation_t hOpA;
+    hipblasOperation_t hOpB;
+    if ( OpA == GridBLAS_OP_N ) hOpA = HIPBLAS_OP_N;
+    if ( OpA == GridBLAS_OP_T ) hOpA = HIPBLAS_OP_T;
+    if ( OpA == GridBLAS_OP_C ) hOpA = HIPBLAS_OP_C;
+    if ( OpB == GridBLAS_OP_N ) hOpB = HIPBLAS_OP_N;
+    if ( OpB == GridBLAS_OP_T ) hOpB = HIPBLAS_OP_T;
+    if ( OpB == GridBLAS_OP_C ) hOpB = HIPBLAS_OP_C;
+    auto err = hipblasDgemmBatched(gridblasHandle,
+				   HIPBLAS_OP_N,
+				   HIPBLAS_OP_N,
+				   m,n,k,
+				   (double *) &alpha_p[0],
+				   (double **)&Amk[0], lda,
+				   (double **)&Bkn[0], ldb,
+				   (double *) &beta_p[0],
+				   (double **)&Cmn[0], ldc,
+				   batchCount);
+    assert(err==HIPBLAS_STATUS_SUCCESS);
+#endif
+#ifdef GRID_CUDA
+    cublasOperation_t hOpA;
+    cublasOperation_t hOpB;
+    if ( OpA == GridBLAS_OP_N ) hOpA = CUBLAS_OP_N;
+    if ( OpA == GridBLAS_OP_T ) hOpA = CUBLAS_OP_T;
+    if ( OpA == GridBLAS_OP_C ) hOpA = CUBLAS_OP_C;
+    if ( OpB == GridBLAS_OP_N ) hOpB = CUBLAS_OP_N;
+    if ( OpB == GridBLAS_OP_T ) hOpB = CUBLAS_OP_T;
+    if ( OpB == GridBLAS_OP_C ) hOpB = CUBLAS_OP_C;
+    auto err = cublasDgemmBatched(gridblasHandle,
+				  hOpA,
+				  hOpB,
+				  m,n,k,
+				  (double *) &alpha_p[0],
+				  (double **)&Amk[0], lda,
+				  (double **)&Bkn[0], ldb,
+				  (double *) &beta_p[0],
+				  (double **)&Cmn[0], ldc,
+				  batchCount);
+    assert(err==CUBLAS_STATUS_SUCCESS);
+#endif
+#ifdef GRID_SYCL
+      int64_t m64=m;
+      int64_t n64=n;
+      int64_t k64=k;
+      int64_t lda64=lda;
+      int64_t ldb64=ldb;
+      int64_t ldc64=ldc;
+      int64_t batchCount64=batchCount;
+
+      oneapi::mkl::transpose iOpA;
+      oneapi::mkl::transpose iOpB;
+      
+      if ( OpA == GridBLAS_OP_N ) iOpA = oneapi::mkl::transpose::N;
+      if ( OpA == GridBLAS_OP_T ) iOpA = oneapi::mkl::transpose::T;
+      if ( OpA == GridBLAS_OP_C ) iOpA = oneapi::mkl::transpose::C;
+      if ( OpB == GridBLAS_OP_N ) iOpB = oneapi::mkl::transpose::N;
+      if ( OpB == GridBLAS_OP_T ) iOpB = oneapi::mkl::transpose::T;
+      if ( OpB == GridBLAS_OP_C ) iOpB = oneapi::mkl::transpose::C;
+
+      oneapi::mkl::blas::column_major::gemm_batch(*gridblasHandle,
+						  &iOpA,
+						  &iOpB,
+						  &m64,&n64,&k64,
+						  (double *) &alpha_p[0],
+						  (const double **)&Amk[0], (const int64_t *)&lda64,
+						  (const double **)&Bkn[0], (const int64_t *)&ldb64,
+						  (double *) &beta_p[0],
+						  (double **)&Cmn[0], (const int64_t *)&ldc64,
+						  (int64_t)1,&batchCount64,std::vector<sycl::event>());
+      synchronise();
+#endif
+#if !defined(GRID_SYCL) && !defined(GRID_CUDA) && !defined(GRID_HIP)
+    // Need a default/reference implementation; use Eigen
+      if ( (OpA == GridBLAS_OP_N ) && (OpB == GridBLAS_OP_N) ) {
+	thread_for (p, batchCount, {
+	  Eigen::Map<Eigen::MatrixXd> eAmk(Amk[p],m,k);
+	  Eigen::Map<Eigen::MatrixXd> eBkn(Bkn[p],k,n);
+	  Eigen::Map<Eigen::MatrixXd> eCmn(Cmn[p],m,n);
+	  eCmn = beta * eCmn + alpha * eAmk * eBkn ;
+	  });
+      } else if ( (OpA == GridBLAS_OP_T ) && (OpB == GridBLAS_OP_N) ) {
+	thread_for (p, batchCount, {
+	  Eigen::Map<Eigen::MatrixXd> eAmk(Amk[p],k,m);
+	  Eigen::Map<Eigen::MatrixXd> eBkn(Bkn[p],k,n);
+	  Eigen::Map<Eigen::MatrixXd> eCmn(Cmn[p],m,n);
+	  eCmn = beta * eCmn + alpha * eAmk.transpose() * eBkn ;
+	  });
+      } else if ( (OpA == GridBLAS_OP_N ) && (OpB == GridBLAS_OP_T) ) {
+	thread_for (p, batchCount, {
+	  Eigen::Map<Eigen::MatrixXd> eAmk(Amk[p],m,k);
+	  Eigen::Map<Eigen::MatrixXd> eBkn(Bkn[p],n,k);
+	  Eigen::Map<Eigen::MatrixXd> eCmn(Cmn[p],m,n);
+	  eCmn = beta * eCmn + alpha * eAmk * eBkn.transpose() ;
+	  });
+      } else if ( (OpA == GridBLAS_OP_T ) && (OpB == GridBLAS_OP_T) ) {
+	thread_for (p, batchCount, {
+	  Eigen::Map<Eigen::MatrixXd> eAmk(Amk[p],k,m);
+	  Eigen::Map<Eigen::MatrixXd> eBkn(Bkn[p],n,k);
+	  Eigen::Map<Eigen::MatrixXd> eCmn(Cmn[p],m,n);
+	  eCmn = beta * eCmn + alpha * eAmk.transpose() * eBkn.transpose() ;
+	  });
+      } else { 
+	assert(0);
+      }
+#endif
+     RealD t1=usecond();
+     RealD flops = 2.0*m*n*k*batchCount;
+     RealD bytes = 1.0*sizeof(RealD)*(m*k+k*n+m*n)*batchCount;
+  }
 
   template<class CComplex>
   double benchmark(int M, int N, int K, int BATCH)
@@ -984,47 +967,6 @@ public:
     return flops; // Returns gigaflops
   }
 
-  template<class CComplex>
-  double benchmark(int M, int N, int K)
-  {
-    int32_t N_A = M*K;
-    int32_t N_B = K*N;
-    int32_t N_C = M*N;
-    deviceVector<CComplex> A(N_A); acceleratorMemSet(&A[0],0,N_A*sizeof(CComplex));
-    deviceVector<CComplex> B(N_B); acceleratorMemSet(&B[0],0,N_B*sizeof(CComplex));
-    deviceVector<CComplex> C(N_C); acceleratorMemSet(&C[0],0,N_C*sizeof(CComplex));
-    CComplex alpha(1.0);
-    CComplex beta (1.0);
-    RealD flops = 8.0*M*N*K;
-    int ncall=10;
-
-    gemm(GridBLAS_OP_C,GridBLAS_OP_N,
-	 M,N,K,
-	 alpha,
-	 &A[0], // m x k 
-	 &B[0], // k x n
-	 beta, 
-	 &C[0]);
-    synchronise();
-
-    RealD t0 = usecond();
-    for(int i=0;i<ncall;i++){
-      gemm(GridBLAS_OP_N,GridBLAS_OP_N,
-	   M,N,K,
-	   alpha,
-	   &A[0], // m x k 
-	   &B[0], // k x n
-	   beta, 
-	   &C[0]);
-      synchronise();
-    }
-    RealD t1 = usecond();
-    RealD bytes = 1.0*sizeof(CComplex)*(M*N*2+N*K+M*K);
-    flops = 8.0*M*N*K*ncall;
-    flops = flops/(t1-t0)/1.e3;
-    return flops; // Returns gigaflops
-  }
-
 };
 
 
@@ -1093,21 +1035,6 @@ static void BLAS(void)
       std::cout<< M<<"\t\t"<<N<<"\t\t"<<K<<"\t\t"<<BATCH<<"\t\t"<<p<<std::endl;
     }}
   fprintf(FP,"\n\n\n");
-
-  std::cout << "----------------------------------------------------------"<<std::endl;
-  std::cout << "  M  "<<"\t\t"<<"N"<<"\t\t\t"<<"K"<<"\t\t"<<"Gflop/s / rank (inner product matrix)"<<std::endl;
-  std::cout << "----------------------------------------------------------"<<std::endl;
-  {
-    int M=12;
-    int N=12;
-    std::vector<int> ks({4*1024*1024, 2*1024*1024, 1024*1024, 256*1024, 1024 });
-    for( int kk=0;kk<ks.size();kk++ ) {
-      int K = ks[kk];
-      double p=blas.benchmark<CComplex>(M,N,K);
-      fprintf(FP,"%d, %d, %d, %d, %f\n", M, N, K, 1, p);
-      std::cout<< M<<"\t\t"<<N<<"\t\t"<<K<<"\t\t"<<1<<"\t\t"<<p<<std::endl;
-    }
-  }
   std::cout << "=================================================================================="<<std::endl;
 };
 

BLAS_benchmark/compile-command

@@ -1,2 +1,2 @@
 
-mpicxx -qmkl=parallel -fsycl BatchBlasBench.cc -o BatchBlasBench -DGRID_SYCL
+mpicxx -qmkl=parallel -fsycl BatchBlasBench.cc -o BatchBlasBench

BLAS_benchmark/compile-command-frontier

@@ -1,5 +0,0 @@
-CXX=hipcc
-MPICXX=mpicxx 
-CXXFLAGS="-fPIC -I{$ROCM_PATH}/include/ -I${MPICH_DIR}/include -L/lib64 -I/opt/cray/pe/mpich/8.1.28/ofi/gnu/12.3/include -DGRID_HIP"
-LDFLAGS="-L/lib64 -L${MPICH_DIR}/lib -lmpi -L${CRAY_MPICH_ROOTDIR}/gtl/lib -lmpi_gtl_hsa -lamdhip64 -lhipblas -lrocblas -lmpi_gnu_123"
-hipcc $CXXFLAGS $LDFLAGS BatchBlasBench.cc -o BatchBlasBench

BLAS_benchmark/compile-command-sunspot

@@ -1,2 +0,0 @@
-
-mpicxx -qmkl=parallel -fsycl BatchBlasBench.cc -o BatchBlasBench -DGRID_SYCL

Grid/algorithms/Algorithms.h

@@ -50,7 +50,6 @@ NAMESPACE_CHECK(approx);
 #include <Grid/algorithms/deflation/Deflation.h>
 #include <Grid/algorithms/deflation/MultiRHSBlockProject.h>
 #include <Grid/algorithms/deflation/MultiRHSDeflation.h>
-#include <Grid/algorithms/deflation/MultiRHSBlockCGLinalg.h>
 NAMESPACE_CHECK(deflation);
 #include <Grid/algorithms/iterative/ConjugateGradient.h>
 NAMESPACE_CHECK(ConjGrad);

Grid/algorithms/FFT.h

@@ -168,7 +168,6 @@ public:
   template<class vobj>
   void FFT_dim(Lattice<vobj> &result,const Lattice<vobj> &source,int dim, int sign){
 #ifndef HAVE_FFTW
-    std::cerr << "FFTW is not compiled but is called"<<std::endl;
     assert(0);
 #else
     conformable(result.Grid(),vgrid);
@@ -191,8 +190,7 @@ public:
       
     Lattice<sobj> pgbuf(&pencil_g);
     autoView(pgbuf_v , pgbuf, CpuWrite);
-    std::cout << "CPU view" << std::endl;
-    
+
     typedef typename FFTW<scalar>::FFTW_scalar FFTW_scalar;
     typedef typename FFTW<scalar>::FFTW_plan   FFTW_plan;
       
@@ -215,7 +213,6 @@ public:
     else if ( sign == forward ) div = 1.0;
     else assert(0);
       
-    std::cout << GridLogPerformance<<"Making FFTW plan" << std::endl;
     FFTW_plan p;
     {
       FFTW_scalar *in = (FFTW_scalar *)&pgbuf_v[0];
@@ -229,7 +226,6 @@ public:
     }
       
     // Barrel shift and collect global pencil
-    std::cout << GridLogPerformance<<"Making pencil" << std::endl;
     Coordinate lcoor(Nd), gcoor(Nd);
     result = source;
     int pc = processor_coor[dim];
@@ -251,7 +247,6 @@ public:
       }
     }
       
-    std::cout <<GridLogPerformance<< "Looping orthog" << std::endl;
     // Loop over orthog coords
     int NN=pencil_g.lSites();
     GridStopWatch timer;
@@ -274,7 +269,6 @@ public:
     usec += timer.useconds();
     flops+= flops_call*NN;
       
-    std::cout <<GridLogPerformance<< "Writing back results " << std::endl;
     // writing out result
     {
       autoView(pgbuf_v,pgbuf,CpuRead);
@@ -291,7 +285,6 @@ public:
     }
     result = result*div;
       
-    std::cout <<GridLogPerformance<< "Destroying plan " << std::endl;
     // destroying plan
     FFTW<scalar>::fftw_destroy_plan(p);
 #endif

Grid/algorithms/LinearOperator.h

@@ -103,38 +103,6 @@ public:
     _Mat.MdagM(in,out);
   }
 };
-template<class Matrix,class Field>
-class MMdagLinearOperator : public LinearOperatorBase<Field> {
-  Matrix &_Mat;
-public:
-  MMdagLinearOperator(Matrix &Mat): _Mat(Mat){};
-
-  // Support for coarsening to a multigrid
-  void OpDiag (const Field &in, Field &out) {
-    _Mat.Mdiag(in,out);
-  }
-  void OpDir  (const Field &in, Field &out,int dir,int disp) {
-    _Mat.Mdir(in,out,dir,disp);
-  }
-  void OpDirAll  (const Field &in, std::vector<Field> &out){
-    _Mat.MdirAll(in,out);
-  };
-  void Op     (const Field &in, Field &out){
-    _Mat.M(in,out);
-  }
-  void AdjOp     (const Field &in, Field &out){
-    _Mat.Mdag(in,out);
-  }
-  void HermOpAndNorm(const Field &in, Field &out,RealD &n1,RealD &n2){
-    _Mat.MMdag(in,out);
-    ComplexD dot = innerProduct(in,out);
-    n1=real(dot);
-    n2=norm2(out);
-  }
-  void HermOp(const Field &in, Field &out){
-    _Mat.MMdag(in,out);
-  }
-};
 
 ////////////////////////////////////////////////////////////////////
 // Construct herm op and shift it for mgrid smoother

Grid/algorithms/SparseMatrix.h

@@ -45,11 +45,6 @@ public:
     M(in,tmp);
     Mdag(tmp,out);
   }
-  virtual void  MMdag(const Field &in, Field &out) {
-    Field tmp (in.Grid());
-    Mdag(in,tmp);
-    M(tmp,out);
-  }
   virtual  void Mdiag    (const Field &in, Field &out)=0;
   virtual  void Mdir     (const Field &in, Field &out,int dir, int disp)=0;
   virtual  void MdirAll  (const Field &in, std::vector<Field> &out)=0;

Grid/algorithms/approx/Chebyshev.h

@@ -59,7 +59,7 @@ public:
     RealD diff = hi-lo;
     RealD delta = diff*1.0e-9;
     for (RealD x=lo; x<hi; x+=delta) {
-      delta*=1.02;
+      delta*=1.1;
       RealD f = approx(x);
       out<< x<<" "<<f<<std::endl;
     }
@@ -131,26 +131,6 @@ public:
       Coeffs[j] = s * 2.0/order;
     }
   };
-  template<class functor>
-  void Init(RealD _lo,RealD _hi,int _order, functor & func)
-  {
-    lo=_lo;
-    hi=_hi;
-    order=_order;
-      
-    if(order < 2) exit(-1);
-    Coeffs.resize(order);
-    for(int j=0;j<order;j++){
-      RealD s=0;
-      for(int k=0;k<order;k++){
-	RealD y=std::cos(M_PI*(k+0.5)/order);
-	RealD x=0.5*(y*(hi-lo)+(hi+lo));
-	RealD f=func(x);
-	s=s+f*std::cos( j*M_PI*(k+0.5)/order );
-      }
-      Coeffs[j] = s * 2.0/order;
-    }
-  };
 
     
   void JacksonSmooth(void){

Grid/algorithms/blas/BatchedBlas.h

@@ -55,10 +55,10 @@ NAMESPACE_BEGIN(Grid);
   typedef cublasHandle_t gridblasHandle_t;
 #endif
 #ifdef GRID_SYCL
-  typedef sycl::queue *gridblasHandle_t;
+  typedef cl::sycl::queue *gridblasHandle_t;
 #endif
 #ifdef GRID_ONE_MKL
-  typedef sycl::queue *gridblasHandle_t;
+  typedef cl::sycl::queue *gridblasHandle_t;
 #endif
 #if !defined(GRID_SYCL) && !defined(GRID_CUDA) && !defined(GRID_HIP) && !defined(GRID_ONE_MKL)
   typedef int32_t gridblasHandle_t;
@@ -89,9 +89,9 @@ public:
       gridblasHandle = theGridAccelerator;
 #endif
 #ifdef GRID_ONE_MKL
-      sycl::gpu_selector selector;
-      sycl::device selectedDevice { selector };
-      sycl::property_list q_prop{sycl::property::queue::in_order()};
+      cl::sycl::gpu_selector selector;
+      cl::sycl::device selectedDevice { selector };
+      cl::sycl::property_list q_prop{cl::sycl::property::queue::in_order()};
       gridblasHandle =new sycl::queue (selectedDevice,q_prop);
 #endif
       gridblasInit=1;

Grid/algorithms/deflation/MultiRHSBlockCGLinalg.h

@@ -1,376 +0,0 @@
-/*************************************************************************************
-
-    Grid physics library, www.github.com/paboyle/Grid 
-
-    Source file: MultiRHSBlockCGLinalg.h
-
-    Copyright (C) 2024
-
-Author: Peter Boyle <pboyle@bnl.gov>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    See the full license in the file "LICENSE" in the top level distribution directory
-*************************************************************************************/
-/*  END LEGAL */
-#pragma once
-
-NAMESPACE_BEGIN(Grid);
-
-
-/* Need helper object for BLAS accelerated mrhs blockCG */
-template<class Field>
-class MultiRHSBlockCGLinalg
-{
-public:
-
-  typedef typename Field::scalar_type   scalar;
-  typedef typename Field::scalar_object scalar_object;
-  typedef typename Field::vector_object vector_object;
-
-  deviceVector<scalar> BLAS_X;      // nrhs x vol -- the sources
-  deviceVector<scalar> BLAS_Y;      // nrhs x vol -- the result
-  deviceVector<scalar> BLAS_C;      // nrhs x nrhs -- the coefficients 
-  deviceVector<scalar> BLAS_Cred;   // nrhs x nrhs x oSites -- reduction buffer
-  deviceVector<scalar *> Xdip;
-  deviceVector<scalar *> Ydip;
-  deviceVector<scalar *> Cdip;
-  
-  MultiRHSBlockCGLinalg() {};
-  ~MultiRHSBlockCGLinalg(){ Deallocate(); };
-  
-  void Deallocate(void)
-  {
-    Xdip.resize(0);
-    Ydip.resize(0);
-    Cdip.resize(0);
-    BLAS_Cred.resize(0);
-    BLAS_C.resize(0);
-    BLAS_X.resize(0);
-    BLAS_Y.resize(0);
-  }
-  void MaddMatrix(std::vector<Field> &AP, Eigen::MatrixXcd &m , const std::vector<Field> &X,const std::vector<Field> &Y,RealD scale=1.0)
-  {
-    std::vector<Field> Y_copy(AP.size(),AP[0].Grid());
-    for(int r=0;r<AP.size();r++){
-      Y_copy[r] = Y[r];
-    }
-    MulMatrix(AP,m,X);
-    for(int r=0;r<AP.size();r++){
-      AP[r] = scale*AP[r]+Y_copy[r];
-    }
-  }
-  void MulMatrix(std::vector<Field> &Y, Eigen::MatrixXcd &m , const std::vector<Field> &X)
-  {
-    typedef typename Field::scalar_type scomplex;
-    GridBase *grid;
-    uint64_t vol;
-    uint64_t words;
-
-    int nrhs = Y.size();
-    grid  = X[0].Grid();
-    vol   = grid->lSites();
-    words = sizeof(scalar_object)/sizeof(scalar);
-    int64_t vw = vol * words;
-
-    RealD t0 = usecond();
-    BLAS_X.resize(nrhs * vw); // cost free if size doesn't change
-    BLAS_Y.resize(nrhs * vw); // cost free if size doesn't change
-    BLAS_C.resize(nrhs * nrhs);// cost free if size doesn't change
-    RealD t1 = usecond();
-
-    /////////////////////////////////////////////
-    // Copy in the multi-rhs sources
-    /////////////////////////////////////////////
-    for(int r=0;r<nrhs;r++){
-      int64_t offset = r*vw;
-      autoView(x_v,X[r],AcceleratorRead);
-      acceleratorCopyDeviceToDevice(&x_v[0],&BLAS_X[offset],sizeof(scalar_object)*vol);
-    }
-
-    // Assumes Eigen storage contiguous
-    acceleratorCopyToDevice(&m(0,0),&BLAS_C[0],BLAS_C.size()*sizeof(scalar));
-    
-  /*
-   * in Fortran column major notation (cuBlas order)
-   *
-   * Xxr = [X1(x)][..][Xn(x)]
-   * Yxr = [Y1(x)][..][Ym(x)]
-   * Y = X . C
-   */
-    deviceVector<scalar *> Xd(1);
-    deviceVector<scalar *> Yd(1);
-    deviceVector<scalar *> Cd(1);
-
-    scalar * Xh = & BLAS_X[0];
-    scalar * Yh = & BLAS_Y[0];
-    scalar * Ch = & BLAS_C[0];
-
-    acceleratorPut(Xd[0],Xh);
-    acceleratorPut(Yd[0],Yh);
-    acceleratorPut(Cd[0],Ch);
-
-    RealD t2 = usecond();
-    GridBLAS BLAS;
-    /////////////////////////////////////////
-    // Y = X*C (transpose?)
-    /////////////////////////////////////////
-    BLAS.gemmBatched(GridBLAS_OP_N,GridBLAS_OP_N, 
-    		     vw,nrhs,nrhs,
-		     scalar(1.0),
-		     Xd,
-		     Cd,
-		     scalar(0.0),  // wipe out Y
-		     Yd);
-    BLAS.synchronise();
-    RealD t3 = usecond();
-
-    // Copy back Y = m X 
-    for(int r=0;r<nrhs;r++){
-      int64_t offset = r*vw;
-      autoView(y_v,Y[r],AcceleratorWrite);
-      acceleratorCopyDeviceToDevice(&BLAS_Y[offset],&y_v[0],sizeof(scalar_object)*vol);
-    }    
-    RealD t4 = usecond();
-    std::cout <<GridLogPerformance << "MulMatrix alloc    took "<< t1-t0<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "MulMatrix preamble took "<< t2-t1<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "MulMatrix blas     took "<< t3-t2<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "MulMatrix copy     took "<< t4-t3<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "MulMatrix total "<< t4-t0<<" us"<<std::endl;
-  }
-  
-  void InnerProductMatrix(Eigen::MatrixXcd &m , const std::vector<Field> &X, const std::vector<Field> &Y)
-  {
-#if 0    
-    int nrhs;
-    GridBase *grid;
-    uint64_t vol;
-    uint64_t words;
-
-    nrhs = X.size();
-    assert(X.size()==Y.size());
-    conformable(X[0],Y[0]);
-
-    grid  = X[0].Grid();
-    vol   = grid->lSites();
-    words = sizeof(scalar_object)/sizeof(scalar);
-    int64_t vw = vol * words;
-
-    RealD t0 = usecond();
-    BLAS_X.resize(nrhs * vw); // cost free if size doesn't change
-    BLAS_Y.resize(nrhs * vw); // cost free if size doesn't change
-    BLAS_C.resize(nrhs * nrhs);// cost free if size doesn't change
-    RealD t1 = usecond();
-
-    /////////////////////////////////////////////
-    // Copy in the multi-rhs sources
-    /////////////////////////////////////////////
-    for(int r=0;r<nrhs;r++){
-      int64_t offset = r*vw;
-      autoView(x_v,X[r],AcceleratorRead);
-      acceleratorCopyDeviceToDevice(&x_v[0],&BLAS_X[offset],sizeof(scalar_object)*vol);
-      autoView(y_v,Y[r],AcceleratorRead);
-      acceleratorCopyDeviceToDevice(&y_v[0],&BLAS_Y[offset],sizeof(scalar_object)*vol);
-    }
-    RealD t2 = usecond();
-
-  /*
-   * in Fortran column major notation (cuBlas order)
-   *
-   * Xxr = [X1(x)][..][Xn(x)]
-   *
-   * Yxr = [Y1(x)][..][Ym(x)]
-   *
-   * C_rs = X^dag Y
-   */
-    deviceVector<scalar *> Xd(1);
-    deviceVector<scalar *> Yd(1);
-    deviceVector<scalar *> Cd(1);
-
-    scalar * Xh = & BLAS_X[0];
-    scalar * Yh = & BLAS_Y[0];
-    scalar * Ch = & BLAS_C[0];
-
-    acceleratorPut(Xd[0],Xh);
-    acceleratorPut(Yd[0],Yh);
-    acceleratorPut(Cd[0],Ch);
-
-    GridBLAS BLAS;
-
-    RealD t3 = usecond();
-    /////////////////////////////////////////
-    // C_rs = X^dag Y
-    /////////////////////////////////////////
-    BLAS.gemmBatched(GridBLAS_OP_C,GridBLAS_OP_N, 
-    		     nrhs,nrhs,vw,
-		     ComplexD(1.0),
-		     Xd,
-		     Yd,
-		     ComplexD(0.0),  // wipe out C
-		     Cd);
-    BLAS.synchronise();
-    RealD t4 = usecond();
-
-    std::vector<scalar> HOST_C(BLAS_C.size());      // nrhs . nrhs -- the coefficients 
-    acceleratorCopyFromDevice(&BLAS_C[0],&HOST_C[0],BLAS_C.size()*sizeof(scalar));
-    grid->GlobalSumVector(&HOST_C[0],nrhs*nrhs);
-
-    RealD t5 = usecond();
-    for(int rr=0;rr<nrhs;rr++){
-      for(int r=0;r<nrhs;r++){
-	int off = r+nrhs*rr;
-	m(r,rr)=HOST_C[off];
-      }
-    }
-    RealD t6 = usecond();
-    uint64_t M=nrhs;
-    uint64_t N=nrhs;
-    uint64_t K=vw;
-    RealD bytes = 1.0*sizeof(ComplexD)*(M*N*2+N*K+M*K);
-    RealD flops = 8.0*M*N*K;
-    flops = flops/(t4-t3)/1.e3;
-    bytes = bytes/(t4-t3)/1.e3;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix m,n,k "<< M<<","<<N<<","<<K<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix alloc t1 "<< t1-t0<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix cp    t2 "<< t2-t1<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix setup t3 "<< t3-t2<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix blas t4 "<< t4-t3<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix blas    "<< flops<<" GF/s"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix blas    "<< bytes<<" GB/s"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix gsum t5 "<< t5-t4<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix cp   t6 "<< t6-t5<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix took "<< t6-t0<<" us"<<std::endl;
-#else
-    int nrhs;
-    GridBase *grid;
-    uint64_t vol;
-    uint64_t words;
-
-    nrhs = X.size();
-    assert(X.size()==Y.size());
-    conformable(X[0],Y[0]);
-
-    grid  = X[0].Grid();
-    int rd0 =  grid->_rdimensions[0] * grid->_rdimensions[1];
-    vol   = grid->oSites()/rd0;
-    words = rd0*sizeof(vector_object)/sizeof(scalar);
-    int64_t vw = vol * words;
-    assert(vw == grid->lSites()*sizeof(scalar_object)/sizeof(scalar));
-
-    RealD t0 = usecond();
-    BLAS_X.resize(nrhs * vw); // cost free if size doesn't change
-    BLAS_Y.resize(nrhs * vw); // cost free if size doesn't change
-    BLAS_Cred.resize(nrhs * nrhs * vol);// cost free if size doesn't change
-    RealD t1 = usecond();
-
-    /////////////////////////////////////////////
-    // Copy in the multi-rhs sources -- layout batched BLAS ready
-    /////////////////////////////////////////////
-    for(int r=0;r<nrhs;r++){
-      autoView(x_v,X[r],AcceleratorRead);
-      autoView(y_v,Y[r],AcceleratorRead);
-      scalar *from_x=(scalar *)&x_v[0];
-      scalar *from_y=(scalar *)&y_v[0];
-      scalar *BX = &BLAS_X[0];
-      scalar *BY = &BLAS_Y[0];
-      accelerator_for(ssw,vw,1,{
-	  uint64_t ss=ssw/words;
-	  uint64_t  w=ssw%words;
-	  uint64_t offset = w+r*words+ss*nrhs*words; // [ss][rhs][words]
-	  BX[offset] = from_x[ssw];
-	  BY[offset] = from_y[ssw];
-	});
-    }
-    RealD t2 = usecond();
-
-  /*
-   * in Fortran column major notation (cuBlas order)
-   *
-   * Xxr = [X1(x)][..][Xn(x)]
-   *
-   * Yxr = [Y1(x)][..][Ym(x)]
-   *
-   * C_rs = X^dag Y
-   */
-    Xdip.resize(vol);
-    Ydip.resize(vol);
-    Cdip.resize(vol);
-    std::vector<scalar *> Xh(vol);
-    std::vector<scalar *> Yh(vol);
-    std::vector<scalar *> Ch(vol);
-    for(uint64_t ss=0;ss<vol;ss++){
-
-      Xh[ss] = & BLAS_X[ss*nrhs*words];
-      Yh[ss] = & BLAS_Y[ss*nrhs*words];
-      Ch[ss] = & BLAS_Cred[ss*nrhs*nrhs];
-
-    }
-    acceleratorCopyToDevice(&Xh[0],&Xdip[0],vol*sizeof(scalar *));
-    acceleratorCopyToDevice(&Yh[0],&Ydip[0],vol*sizeof(scalar *));
-    acceleratorCopyToDevice(&Ch[0],&Cdip[0],vol*sizeof(scalar *));
-    
-    GridBLAS BLAS;
-
-    RealD t3 = usecond();
-    /////////////////////////////////////////
-    // C_rs = X^dag Y
-    /////////////////////////////////////////
-    BLAS.gemmBatched(GridBLAS_OP_C,GridBLAS_OP_N, 
-    		     nrhs,nrhs,words,
-		     ComplexD(1.0),
-		     Xdip,
-		     Ydip,
-		     ComplexD(0.0),  // wipe out C
-		     Cdip);
-    BLAS.synchronise();
-    RealD t4 = usecond();
-
-    std::vector<scalar> HOST_C(BLAS_Cred.size());      // nrhs . nrhs -- the coefficients 
-    acceleratorCopyFromDevice(&BLAS_Cred[0],&HOST_C[0],BLAS_Cred.size()*sizeof(scalar));
-
-    RealD t5 = usecond();
-    m = Eigen::MatrixXcd::Zero(nrhs,nrhs);
-    for(int ss=0;ss<vol;ss++){
-      Eigen::Map<Eigen::MatrixXcd> eC((std::complex<double> *)&HOST_C[ss*nrhs*nrhs],nrhs,nrhs);
-      m = m + eC;
-    }
-    RealD t6l = usecond();
-    grid->GlobalSumVector((scalar *) &m(0,0),nrhs*nrhs);
-    RealD t6 = usecond();
-    uint64_t M=nrhs;
-    uint64_t N=nrhs;
-    uint64_t K=vw;
-    RealD xybytes = grid->lSites()*sizeof(scalar_object);
-    RealD bytes = 1.0*sizeof(ComplexD)*(M*N*2+N*K+M*K);
-    RealD flops = 8.0*M*N*K;
-    flops = flops/(t4-t3)/1.e3;
-    bytes = bytes/(t4-t3)/1.e3;
-    xybytes = 4*xybytes/(t2-t1)/1.e3;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix m,n,k "<< M<<","<<N<<","<<K<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix alloc t1 "<< t1-t0<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix cp    t2 "<< t2-t1<<" us "<<xybytes<<" GB/s"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix setup t3 "<< t3-t2<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix blas t4 "<< t4-t3<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix blas    "<< flops<<" GF/s"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix blas    "<< bytes<<" GB/s"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix cp     t5 "<< t5-t4<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix lsum   t6l "<< t6l-t5<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix gsum   t6 "<< t6-t6l<<" us"<<std::endl;
-    std::cout <<GridLogPerformance<< "InnerProductMatrix took "<< t6-t0<<" us"<<std::endl;
-#endif
-  }
-};
-
-NAMESPACE_END(Grid);

Grid/algorithms/deflation/MultiRHSBlockProject.h

@@ -447,10 +447,10 @@ public:
     /////////////////////////////////////////
     BLAS.gemmBatched(GridBLAS_OP_C,GridBLAS_OP_N, 
     		     nbasis,nrhs,vw,
-		     scalar(1.0),
+		     ComplexD(1.0),
 		     Vd,
 		     Fd,
-		     scalar(0.0),  // wipe out C
+		     ComplexD(0.0),  // wipe out C
 		     Cd);
     BLAS.synchronise();
     //    std::cout << "BlockProject done"<<std::endl;
@@ -497,10 +497,10 @@ public:
     int64_t vw = block_vol * words;
     BLAS.gemmBatched(GridBLAS_OP_N,GridBLAS_OP_N, 
     		     vw,nrhs,nbasis,
-		     scalar(1.0),
+		     ComplexD(1.0),
 		     Vd,
 		     Cd,
-		     scalar(0.0),  // wipe out C
+		     ComplexD(0.0),  // wipe out C
 		     Fd);
     BLAS.synchronise();
     //    std::cout << " blas call done"<<std::endl;

Grid/algorithms/deflation/MultiRHSDeflation.h

@@ -182,10 +182,10 @@ public:
     /////////////////////////////////////////
     BLAS.gemmBatched(GridBLAS_OP_C,GridBLAS_OP_N, 
     		     nev,nrhs,vw,
-		     scalar(1.0),
+		     ComplexD(1.0),
 		     Ed,
 		     Rd,
-		     scalar(0.0),  // wipe out C
+		     ComplexD(0.0),  // wipe out C
 		     Cd);
     BLAS.synchronise();
 
@@ -210,10 +210,10 @@ public:
     /////////////////////////////////////////
     BLAS.gemmBatched(GridBLAS_OP_N,GridBLAS_OP_N, 
 		     vw,nrhs,nev,
-		     scalar(1.0),
+		     ComplexD(1.0),
 		     Ed, // x . nev
 		     Cd, // nev . nrhs
-		     scalar(0.0),
+		     ComplexD(0.0),
 		     Gd);
     BLAS.synchronise();
 

Grid/algorithms/iterative/AdefMrhs.h

@@ -53,7 +53,6 @@ class TwoLevelCGmrhs
   // Fine operator, Smoother, CoarseSolver
   LinearOperatorBase<Field>   &_FineLinop;
   LinearFunction<Field>   &_Smoother;
-  MultiRHSBlockCGLinalg<Field> _BlockCGLinalg;
 
   GridStopWatch ProjectTimer;
   GridStopWatch PromoteTimer;
@@ -63,12 +62,7 @@ class TwoLevelCGmrhs
   GridStopWatch SmoothTimer;
   GridStopWatch InsertTimer;
 
-  /*
-    Field rrr;
-  Field sss;
-  Field qqq;
-  Field zzz;
-  */  
+  
   // more most opertor functions
   TwoLevelCGmrhs(RealD tol,
 		 Integer maxit,
@@ -79,313 +73,12 @@ class TwoLevelCGmrhs
     MaxIterations(maxit),
     _FineLinop(FineLinop),
     _Smoother(Smoother)
-    /*
-    rrr(fine),
-    sss(fine),
-    qqq(fine),
-    zzz(fine)
-*/
   {
     grid       = fine;
   };
   
   // Vector case
   virtual void operator() (std::vector<Field> &src, std::vector<Field> &x)
-  {
-    //    SolveSingleSystem(src,x);
-    SolvePrecBlockCG(src,x);
-  }
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// Thin QR factorisation (google it)
-////////////////////////////////////////////////////////////////////////////////////////////////////
-  ////////////////////////////////////////////////////////////////////////////////////////////////////
-  //Dimensions
-  // R_{ferm x Nblock} =  Q_{ferm x Nblock} x  C_{Nblock x Nblock} -> ferm x Nblock
-  //
-  // Rdag R = m_rr = Herm = L L^dag        <-- Cholesky decomposition (LLT routine in Eigen)
-  //
-  //   Q  C = R => Q = R C^{-1}
-  //
-  // Want  Ident = Q^dag Q = C^{-dag} R^dag R C^{-1} = C^{-dag} L L^dag C^{-1} = 1_{Nblock x Nblock} 
-  //
-  // Set C = L^{dag}, and then Q^dag Q = ident 
-  //
-  // Checks:
-  // Cdag C = Rdag R ; passes.
-  // QdagQ  = 1      ; passes
-  ////////////////////////////////////////////////////////////////////////////////////////////////////
-  void ThinQRfact (Eigen::MatrixXcd &m_zz,
-		   Eigen::MatrixXcd &C,
-		   Eigen::MatrixXcd &Cinv,
-		   std::vector<Field> &  Q,
-		   std::vector<Field> & MQ,
-		   const std::vector<Field> & Z,
-		   const std::vector<Field> & MZ)
-  {
-    RealD t0=usecond();
-    _BlockCGLinalg.InnerProductMatrix(m_zz,MZ,Z);
-    RealD t1=usecond();
-
-    m_zz = 0.5*(m_zz+m_zz.adjoint());
-    
-    Eigen::MatrixXcd L    = m_zz.llt().matrixL(); 
-    
-    C    = L.adjoint();
-    Cinv = C.inverse();
-    
-    RealD t3=usecond();
-    _BlockCGLinalg.MulMatrix( Q,Cinv,Z);
-    _BlockCGLinalg.MulMatrix(MQ,Cinv,MZ);
-    RealD t4=usecond();
-    std::cout << " ThinQRfact IP    :"<< t1-t0<<" us"<<std::endl;
-    std::cout << " ThinQRfact Eigen :"<< t3-t1<<" us"<<std::endl;
-    std::cout << " ThinQRfact MulMat:"<< t4-t3<<" us"<<std::endl;
-  }
-
-  virtual void SolvePrecBlockCG (std::vector<Field> &src, std::vector<Field> &X)
-  {
-    std::cout << GridLogMessage<<"HDCG: mrhs fPrecBlockcg starting"<<std::endl;
-    src[0].Grid()->Barrier();
-    int nrhs = src.size();
-    //    std::vector<RealD> f(nrhs);
-    //    std::vector<RealD> rtzp(nrhs);
-    //    std::vector<RealD> rtz(nrhs);
-    //    std::vector<RealD> a(nrhs);
-    //    std::vector<RealD> d(nrhs);
-    //    std::vector<RealD> b(nrhs);
-    //    std::vector<RealD> rptzp(nrhs);
-
-    ////////////////////////////////////////////
-    //Initial residual computation & set up
-    ////////////////////////////////////////////
-    std::vector<RealD> ssq(nrhs);
-    for(int rhs=0;rhs<nrhs;rhs++){
-      ssq[rhs]=norm2(src[rhs]); assert(ssq[rhs]!=0.0);
-    }      
-
-    ///////////////////////////
-    // Fields -- eliminate duplicates between fPcg and block cg
-    ///////////////////////////
-    std::vector<Field> Mtmp(nrhs,grid);
-    std::vector<Field> tmp(nrhs,grid);
-    std::vector<Field>   Z(nrhs,grid); // Rename Z to R
-    std::vector<Field>  MZ(nrhs,grid); // Rename MZ to Z
-    std::vector<Field>   Q(nrhs,grid); // 
-    std::vector<Field>  MQ(nrhs,grid); // Rename to P
-    std::vector<Field>   D(nrhs,grid);
-    std::vector<Field>  AD(nrhs,grid);
-    
-    /************************************************************************
-     * Preconditioned Block conjugate gradient rQ
-     * Generalise Sebastien Birk Thesis, after Dubrulle 2001.
-     * Introduce preconditioning following Saad Ch9
-     ************************************************************************
-     * Dimensions:
-     *
-     *   X,B etc... ==(Nferm x nrhs)
-     *  Matrix A==(Nferm x Nferm)
-     *  
-     * Nferm = Nspin x Ncolour x Ncomplex x Nlattice_site
-     * QC => Thin QR factorisation (google it)
-     *
-     * R = B-AX
-     * Z = Mi R
-     * QC = Z
-     * D = Q 
-     * for k: 
-     *   R  = AD
-     *   Z  = Mi R
-     *   M  = [D^dag R]^{-1}
-     *   X  = X + D M C
-     *   QS = Q - Z.M
-     *   D  = Q + D S^dag
-     *   C  = S C
-     */
-    Eigen::MatrixXcd m_DZ     = Eigen::MatrixXcd::Identity(nrhs,nrhs);
-    Eigen::MatrixXcd m_M      = Eigen::MatrixXcd::Identity(nrhs,nrhs);
-    Eigen::MatrixXcd m_zz     = Eigen::MatrixXcd::Zero(nrhs,nrhs);
-    Eigen::MatrixXcd m_rr     = Eigen::MatrixXcd::Zero(nrhs,nrhs);
-    
-    Eigen::MatrixXcd m_C      = Eigen::MatrixXcd::Zero(nrhs,nrhs);
-    Eigen::MatrixXcd m_Cinv   = Eigen::MatrixXcd::Zero(nrhs,nrhs);
-    Eigen::MatrixXcd m_S      = Eigen::MatrixXcd::Zero(nrhs,nrhs);
-    Eigen::MatrixXcd m_Sinv   = Eigen::MatrixXcd::Zero(nrhs,nrhs);
-    
-    Eigen::MatrixXcd m_tmp    = Eigen::MatrixXcd::Identity(nrhs,nrhs);
-    Eigen::MatrixXcd m_tmp1   = Eigen::MatrixXcd::Identity(nrhs,nrhs);
-
-    GridStopWatch HDCGTimer;
-
-    //////////////////////////
-    // x0 = Vstart -- possibly modify guess
-    //////////////////////////
-    Vstart(X,src);
-
-    //////////////////////////
-    // R = B-AX
-    //////////////////////////
-    for(int rhs=0;rhs<nrhs;rhs++){
-      // r0 = b -A x0
-      _FineLinop.HermOp(X[rhs],tmp[rhs]);
-      axpy (Z[rhs], -1.0,tmp[rhs], src[rhs]);    // Computes R=Z=src - A X0
-    }
-
-    //////////////////////////////////
-    // Compute MZ = M1 Z = M1 B - M1 A x0
-    //////////////////////////////////
-    PcgM1(Z,MZ);  
-
-    //////////////////////////////////
-    // QC = Z
-    //////////////////////////////////
-    ThinQRfact (m_zz, m_C, m_Cinv, Q, MQ, Z, MZ);
-
-    //////////////////////////////////
-    // D=MQ
-    //////////////////////////////////
-    for(int b=0;b<nrhs;b++) D[b]=MQ[b]; // LLT rotation of the MZ basis of search dirs
-
-    std::cout << GridLogMessage<<"PrecBlockCGrQ vec computed initial residual and QR fact " <<std::endl;
-
-    ProjectTimer.Reset();
-    PromoteTimer.Reset();
-    DeflateTimer.Reset();
-    CoarseTimer.Reset();
-    SmoothTimer.Reset();
-    FineTimer.Reset();
-    InsertTimer.Reset();
-
-    GridStopWatch M1Timer;
-    GridStopWatch M2Timer;
-    GridStopWatch M3Timer;
-    GridStopWatch LinalgTimer;
-    GridStopWatch InnerProdTimer;
-
-    HDCGTimer.Start();
-
-    std::vector<RealD> rn(nrhs);
-    for (int k=0;k<=MaxIterations;k++){
-
-      ////////////////////
-      // Z  = AD
-      ////////////////////
-      M3Timer.Start();
-      for(int b=0;b<nrhs;b++) _FineLinop.HermOp(D[b], Z[b]);      
-      M3Timer.Stop();
-
-      ////////////////////
-      // MZ  = M1 Z <==== the Multigrid preconditioner
-      ////////////////////
-      M1Timer.Start();
-      PcgM1(Z,MZ);
-      M1Timer.Stop();
-
-      FineTimer.Start();
-      ////////////////////
-      // M  = [D^dag Z]^{-1} = (<Ddag MZ>_M)^{-1} inner prod, generalising Saad derivation of Precon CG
-      ////////////////////
-      InnerProdTimer.Start();
-      _BlockCGLinalg.InnerProductMatrix(m_DZ,D,Z);
-      InnerProdTimer.Stop();
-      m_M       = m_DZ.inverse();
-
-      ///////////////////////////
-      // X  = X + D MC
-      ///////////////////////////
-      m_tmp     = m_M * m_C;
-      LinalgTimer.Start();
-      _BlockCGLinalg.MaddMatrix(X,m_tmp, D,X);     // D are the search directions and X takes the updates 
-      LinalgTimer.Stop();
-
-      ///////////////////////////
-      // QS = Q - M Z
-      // (MQ) S = MQ - M (M1Z)
-      ///////////////////////////
-      LinalgTimer.Start();
-      _BlockCGLinalg.MaddMatrix(tmp ,m_M, Z, Q,-1.0);
-      _BlockCGLinalg.MaddMatrix(Mtmp,m_M,MZ,MQ,-1.0);
-      ThinQRfact (m_zz, m_S, m_Sinv, Q, MQ, tmp, Mtmp);
-      LinalgTimer.Stop();
-
-      ////////////////////////////
-      // D  = MQ + D S^dag
-      ////////////////////////////
-      m_tmp = m_S.adjoint();
-      LinalgTimer.Start();
-      _BlockCGLinalg.MaddMatrix(D,m_tmp,D,MQ);
-      LinalgTimer.Stop();
-
-      ////////////////////////////
-      // C  = S C
-      ////////////////////////////
-      m_C = m_S*m_C;
-      
-      ////////////////////////////
-      // convergence monitor
-      ////////////////////////////
-      m_rr = m_C.adjoint() * m_C;
-      
-      FineTimer.Stop();
-
-      RealD max_resid=0;
-      RealD rrsum=0;
-      RealD sssum=0;
-      RealD rr;
-
-      for(int b=0;b<nrhs;b++) {
-	rrsum+=real(m_rr(b,b));
-	sssum+=ssq[b];
-	rr = real(m_rr(b,b))/ssq[b];
-	if ( rr > max_resid ) max_resid = rr;
-      }
-      std::cout << GridLogMessage <<
-	  "\t Prec BlockCGrQ Iteration "<<k<<" ave resid "<< std::sqrt(rrsum/sssum) << " max "<< std::sqrt(max_resid) <<std::endl;
-
-
-      if ( max_resid < Tolerance*Tolerance ) { 
-
-	HDCGTimer.Stop();
-	std::cout<<GridLogMessage<<"HDCG: mrhs PrecBlockCGrQ converged in "<<k<<" iterations and "<<HDCGTimer.Elapsed()<<std::endl;;
-	std::cout<<GridLogMessage<<"HDCG: mrhs PrecBlockCGrQ : Linalg  "<<LinalgTimer.Elapsed()<<std::endl;;
-	std::cout<<GridLogMessage<<"HDCG: mrhs PrecBlockCGrQ : fine H  "<<M3Timer.Elapsed()<<std::endl;;
-	std::cout<<GridLogMessage<<"HDCG: mrhs PrecBlockCGrQ : prec M1 "<<M1Timer.Elapsed()<<std::endl;;
-	std::cout<<GridLogMessage<<"**** M1 breakdown:"<<std::endl;
-	std::cout<<GridLogMessage<<"HDCG: mrhs PrecBlockCGrQ : Project "<<ProjectTimer.Elapsed()<<std::endl;;
-	std::cout<<GridLogMessage<<"HDCG: mrhs PrecBlockCGrQ : Promote "<<PromoteTimer.Elapsed()<<std::endl;;
-	std::cout<<GridLogMessage<<"HDCG: mrhs PrecBlockCGrQ : Deflate "<<DeflateTimer.Elapsed()<<std::endl;;
-	std::cout<<GridLogMessage<<"HDCG: mrhs PrecBlockCGrQ : Coarse  "<<CoarseTimer.Elapsed()<<std::endl;;
-	std::cout<<GridLogMessage<<"HDCG: mrhs PrecBlockCGrQ : Fine    "<<FineTimer.Elapsed()<<std::endl;;
-	std::cout<<GridLogMessage<<"HDCG: mrhs PrecBlockCGrQ : Smooth  "<<SmoothTimer.Elapsed()<<std::endl;;
-	std::cout<<GridLogMessage<<"HDCG: mrhs PrecBlockCGrQ : Insert  "<<InsertTimer.Elapsed()<<std::endl;;
-
-	for(int rhs=0;rhs<nrhs;rhs++){
-
-	  _FineLinop.HermOp(X[rhs],tmp[rhs]);			  
-
-	  Field mytmp(grid);
-	  axpy(mytmp,-1.0,src[rhs],tmp[rhs]);
-      
-	  RealD  xnorm   = sqrt(norm2(X[rhs]));
-	  RealD  srcnorm = sqrt(norm2(src[rhs]));
-	  RealD  tmpnorm = sqrt(norm2(mytmp));
-	  RealD  true_residual = tmpnorm/srcnorm;
-	  std::cout<<GridLogMessage
-		   <<"HDCG: true residual ["<<rhs<<"] is "<<true_residual
-		   <<" solution "<<xnorm
-		   <<" source "<<srcnorm
-		   <<std::endl;
-	}
-	return;
-      }
-      
-    }
-    HDCGTimer.Stop();
-    std::cout<<GridLogMessage<<"HDCG: PrecBlockCGrQ not converged "<<HDCGTimer.Elapsed()<<std::endl;
-    assert(0);
-  }
-
-  virtual void SolveSingleSystem (std::vector<Field> &src, std::vector<Field> &x)
   {
     std::cout << GridLogMessage<<"HDCG: mrhs fPcg starting"<<std::endl;
     src[0].Grid()->Barrier();
@@ -668,26 +361,15 @@ public:
     CoarseField PleftProjMrhs(this->coarsegridmrhs);
     CoarseField PleftMss_projMrhs(this->coarsegridmrhs);
 
-    //    this->rrr=in[0];
-
-#undef SMOOTHER_BLOCK_SOLVE
-#if SMOOTHER_BLOCK_SOLVE
-    this->SmoothTimer.Start();
-    this->_Smoother(in,Min);
-    this->SmoothTimer.Stop();
-#else
     for(int rhs=0;rhs<nrhs;rhs++) {
+
       this->SmoothTimer.Start();
       this->_Smoother(in[rhs],Min[rhs]);
       this->SmoothTimer.Stop();
-    }
-#endif
-    //    this->sss=Min[0];
-    
-    for(int rhs=0;rhs<nrhs;rhs++) {
-      
+
       this->FineTimer.Start();
       this->_FineLinop.HermOp(Min[rhs],out[rhs]);
+
       axpy(tmp[rhs],-1.0,out[rhs],in[rhs]);          // resid  = in - A Min
       this->FineTimer.Stop();
 
@@ -719,15 +401,13 @@ public:
     this->_Projector.blockPromote(tmp,PleftMss_proj);// tmp= Q[in - A Min]  
     this->PromoteTimer.Stop();
     this->FineTimer.Start();
-    //    this->qqq=tmp[0];
     for(int rhs=0;rhs<nrhs;rhs++) {
       axpy(out[rhs],1.0,Min[rhs],tmp[rhs]); // Min+tmp
     }
-    //    this->zzz=out[0];
     this->FineTimer.Stop();
   }
 };
-
+  
 
 NAMESPACE_END(Grid);
 

Grid/algorithms/iterative/BlockConjugateGradient.h

@@ -31,58 +31,6 @@ directory
 
 NAMESPACE_BEGIN(Grid);
 
-template<class Field>
-void InnerProductMatrix(Eigen::MatrixXcd &m , const std::vector<Field> &X, const std::vector<Field> &Y){
-  typedef typename Field::scalar_type scomplex;
-  int Nblock = X.size();
-  for(int b=0;b<Nblock;b++){
-  for(int bp=0;bp<Nblock;bp++) {
-    m(b,bp) = innerProduct(X[b],Y[bp]);  
-  }}
-}
-template<class Field>
-void MaddMatrix(std::vector<Field> &AP, Eigen::MatrixXcd &m , const std::vector<Field> &X,const std::vector<Field> &Y,RealD scale=1.0){
-  // Should make this cache friendly with site outermost, parallel_for
-  // Deal with case AP aliases with either Y or X
-  //
-  //Could pack "X" and "AP" into a Nblock x Volume dense array.
-  // AP(Nrhs x vol) = Y(Nrhs x vol) + scale * m(nrhs x nrhs) * X(nrhs*vol)
-  typedef typename Field::scalar_type scomplex;
-  int Nblock = AP.size();
-  std::vector<Field> tmp(Nblock,X[0]);
-  for(int b=0;b<Nblock;b++){
-    tmp[b]   = Y[b];
-    for(int bp=0;bp<Nblock;bp++) {
-      tmp[b] = tmp[b] +scomplex(scale*m(bp,b))*X[bp]; 
-    }
-  }
-  for(int b=0;b<Nblock;b++){
-    AP[b] = tmp[b];
-  }
-}
-template<class Field>
-void MulMatrix(std::vector<Field> &AP, Eigen::MatrixXcd &m , const std::vector<Field> &X){
-  // Should make this cache friendly with site outermost, parallel_for
-  typedef typename Field::scalar_type scomplex;
-  int Nblock = AP.size();
-  for(int b=0;b<Nblock;b++){
-    AP[b] = Zero();
-    for(int bp=0;bp<Nblock;bp++) {
-      AP[b] += scomplex(m(bp,b))*X[bp]; 
-    }
-  }
-}
-template<class Field>
-double normv(const std::vector<Field> &P){
-  int Nblock = P.size();
-  double nn = 0.0;
-  for(int b=0;b<Nblock;b++) {
-    nn+=norm2(P[b]);
-  }
-  return nn;
-}
-
-
 enum BlockCGtype { BlockCG, BlockCGrQ, CGmultiRHS, BlockCGVec, BlockCGrQVec };
 
 //////////////////////////////////////////////////////////////////////////
@@ -139,19 +87,10 @@ void ThinQRfact (Eigen::MatrixXcd &m_rr,
   sliceInnerProductMatrix(m_rr,R,R,Orthog);
 
   // Force manifest hermitian to avoid rounding related
-  /*
-  int rank=m_rr.rows();
-  for(int r=0;r<rank;r++){
-  for(int s=0;s<rank;s++){
-    std::cout << "QR m_rr["<<r<<","<<s<<"] "<<m_rr(r,s)<<std::endl;
-  }}
-  */
   m_rr = 0.5*(m_rr+m_rr.adjoint());
 
   Eigen::MatrixXcd L    = m_rr.llt().matrixL(); 
 
-//  ComplexD det = L.determinant();
-//  std::cout << " Det m_rr "<<det<<std::endl;
   C    = L.adjoint();
   Cinv = C.inverse();
   ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -171,20 +110,11 @@ void ThinQRfact (Eigen::MatrixXcd &m_rr,
 		 const std::vector<Field> & R)
 {
   InnerProductMatrix(m_rr,R,R);
-  /*
-  int rank=m_rr.rows();
-  for(int r=0;r<rank;r++){
-  for(int s=0;s<rank;s++){
-    std::cout << "QRvec m_rr["<<r<<","<<s<<"] "<<m_rr(r,s)<<std::endl;
-  }}
-  */
+
   m_rr = 0.5*(m_rr+m_rr.adjoint());
 
   Eigen::MatrixXcd L    = m_rr.llt().matrixL(); 
 
-  //  ComplexD det = L.determinant();
-  //  std::cout << " Det m_rr "<<det<<std::endl;
-
   C    = L.adjoint();
   Cinv = C.inverse();
 
@@ -256,7 +186,6 @@ void BlockCGrQsolve(LinearOperatorBase<Field> &Linop, const Field &B, Field &X)
   sliceNorm(ssq,B,Orthog);
   RealD sssum=0;
   for(int b=0;b<Nblock;b++) sssum+=ssq[b];
-  for(int b=0;b<Nblock;b++) std::cout << "src["<<b<<"]" << ssq[b] <<std::endl;
 
   sliceNorm(residuals,B,Orthog);
   for(int b=0;b<Nblock;b++){ assert(std::isnan(residuals[b])==0); }
@@ -292,9 +221,6 @@ void BlockCGrQsolve(LinearOperatorBase<Field> &Linop, const Field &B, Field &X)
   Linop.HermOp(X, AD);
   tmp = B - AD;  
 
-  sliceNorm(residuals,tmp,Orthog);
-  for(int b=0;b<Nblock;b++) std::cout << "res["<<b<<"]" << residuals[b] <<std::endl;
-  
   ThinQRfact (m_rr, m_C, m_Cinv, Q, tmp);
   D=Q;
 
@@ -310,8 +236,6 @@ void BlockCGrQsolve(LinearOperatorBase<Field> &Linop, const Field &B, Field &X)
   GridStopWatch SolverTimer;
   SolverTimer.Start();
 
-  RealD max_resid=0;
-
   int k;
   for (k = 1; k <= MaxIterations; k++) {
 
@@ -356,7 +280,7 @@ void BlockCGrQsolve(LinearOperatorBase<Field> &Linop, const Field &B, Field &X)
      */
     m_rr = m_C.adjoint() * m_C;
 
-    max_resid=0;
+    RealD max_resid=0;
     RealD rrsum=0;
     RealD rr;
 
@@ -398,9 +322,7 @@ void BlockCGrQsolve(LinearOperatorBase<Field> &Linop, const Field &B, Field &X)
     }
 
   }
-
-  std::cout << GridLogMessage << "BlockConjugateGradient(rQ) did NOT converge "<<k<<" / "<<MaxIterations
-	    <<" residual "<< std::sqrt(max_resid)<< std::endl;
+  std::cout << GridLogMessage << "BlockConjugateGradient(rQ) did NOT converge" << std::endl;
 
   if (ErrorOnNoConverge) assert(0);
   IterationsToComplete = k;
@@ -544,6 +466,43 @@ void CGmultiRHSsolve(LinearOperatorBase<Field> &Linop, const Field &Src, Field &
   IterationsToComplete = k;
 }
 
+void InnerProductMatrix(Eigen::MatrixXcd &m , const std::vector<Field> &X, const std::vector<Field> &Y){
+  for(int b=0;b<Nblock;b++){
+  for(int bp=0;bp<Nblock;bp++) {
+    m(b,bp) = innerProduct(X[b],Y[bp]);  
+  }}
+}
+void MaddMatrix(std::vector<Field> &AP, Eigen::MatrixXcd &m , const std::vector<Field> &X,const std::vector<Field> &Y,RealD scale=1.0){
+  // Should make this cache friendly with site outermost, parallel_for
+  // Deal with case AP aliases with either Y or X
+  std::vector<Field> tmp(Nblock,X[0]);
+  for(int b=0;b<Nblock;b++){
+    tmp[b]   = Y[b];
+    for(int bp=0;bp<Nblock;bp++) {
+      tmp[b] = tmp[b] + scomplex(scale*m(bp,b))*X[bp]; 
+    }
+  }
+  for(int b=0;b<Nblock;b++){
+    AP[b] = tmp[b];
+  }
+}
+void MulMatrix(std::vector<Field> &AP, Eigen::MatrixXcd &m , const std::vector<Field> &X){
+  // Should make this cache friendly with site outermost, parallel_for
+  for(int b=0;b<Nblock;b++){
+    AP[b] = Zero();
+    for(int bp=0;bp<Nblock;bp++) {
+      AP[b] += scomplex(m(bp,b))*X[bp]; 
+    }
+  }
+}
+double normv(const std::vector<Field> &P){
+  double nn = 0.0;
+  for(int b=0;b<Nblock;b++) {
+    nn+=norm2(P[b]);
+  }
+  return nn;
+}
+
 ////////////////////////////////////////////////////////////////////////////
 // BlockCGrQvec implementation:
 //--------------------------
@@ -590,7 +549,6 @@ void BlockCGrQsolveVec(LinearOperatorBase<Field> &Linop, const std::vector<Field
 
   RealD sssum=0;
   for(int b=0;b<Nblock;b++){ ssq[b] = norm2(B[b]);}
-  for(int b=0;b<Nblock;b++){ std::cout << "ssq["<<b<<"] "<<ssq[b]<<std::endl;}
   for(int b=0;b<Nblock;b++) sssum+=ssq[b];
 
   for(int b=0;b<Nblock;b++){ residuals[b] = norm2(B[b]);}
@@ -627,7 +585,6 @@ void BlockCGrQsolveVec(LinearOperatorBase<Field> &Linop, const std::vector<Field
   for(int b=0;b<Nblock;b++) {
     Linop.HermOp(X[b], AD[b]);
     tmp[b] = B[b] - AD[b];  
-    std::cout << "r0["<<b<<"] "<<norm2(tmp[b])<<std::endl;
   }
 
   ThinQRfact (m_rr, m_C, m_Cinv, Q, tmp);

Grid/algorithms/iterative/ConjugateGradient.h

@@ -38,13 +38,12 @@ NAMESPACE_BEGIN(Grid);
 // single input vec, single output vec.
 /////////////////////////////////////////////////////////////
 
-
 template <class Field>
 class ConjugateGradient : public OperatorFunction<Field> {
 public:
 
   using OperatorFunction<Field>::operator();
-  
+
   bool ErrorOnNoConverge;  // throw an assert when the CG fails to converge.
                            // Defaults true.
   RealD Tolerance;
@@ -58,22 +57,10 @@ public:
       ErrorOnNoConverge(err_on_no_conv)
   {};
 
-  virtual void LogIteration(int k,RealD a,RealD b){
-    //    std::cout << "ConjugageGradient::LogIteration() "<<std::endl;
-  };
-  virtual void LogBegin(void){
-    std::cout << "ConjugageGradient::LogBegin() "<<std::endl;
-  };
+  void operator()(LinearOperatorBase<Field> &Linop, const Field &src, Field &psi) {
 
-    void operator()(LinearOperatorBase<Field> &Linop, const Field &src, Field &psi) {
-
-      this->LogBegin();
-
-      GRID_TRACE("ConjugateGradient");
+    GRID_TRACE("ConjugateGradient");
     GridStopWatch PreambleTimer;
-    GridStopWatch ConstructTimer;
-    GridStopWatch NormTimer;
-    GridStopWatch AssignTimer;
     PreambleTimer.Start();
     psi.Checkerboard() = src.Checkerboard();
 
@@ -83,19 +70,14 @@ public:
     //RealD b_pred;
 
     // Was doing copies
-    ConstructTimer.Start();
-    Field p  (src.Grid());
+    Field p(src.Grid());
     Field mmp(src.Grid());
-    Field r  (src.Grid());
-    ConstructTimer.Stop();
+    Field r(src.Grid());
 
     // Initial residual computation & set up
-    NormTimer.Start();
     ssq = norm2(src);
     RealD guess = norm2(psi);
-    NormTimer.Stop();
     assert(std::isnan(guess) == 0);
-    AssignTimer.Start();
     if ( guess == 0.0 ) {
       r = src;
       p = r;
@@ -107,7 +89,6 @@ public:
       a = norm2(p);
     }
     cp = a;
-    AssignTimer.Stop();
 
     // Handle trivial case of zero src
     if (ssq == 0.){
@@ -183,7 +164,6 @@ public:
       }
       LinearCombTimer.Stop();
       LinalgTimer.Stop();
-      LogIteration(k,a,b);
 
       IterationTimer.Stop();
       if ( (k % 500) == 0 ) {
@@ -240,9 +220,6 @@ public:
     	      <<" residual "<< std::sqrt(cp / ssq)<< std::endl;
     SolverTimer.Stop();
     std::cout << GridLogMessage << "\tPreamble   " << PreambleTimer.Elapsed() <<std::endl;
-    std::cout << GridLogMessage << "\tConstruct  " << ConstructTimer.Elapsed() <<std::endl;
-    std::cout << GridLogMessage << "\tNorm       " << NormTimer.Elapsed() <<std::endl;
-    std::cout << GridLogMessage << "\tAssign     " << AssignTimer.Elapsed() <<std::endl;
     std::cout << GridLogMessage << "\tSolver     " << SolverTimer.Elapsed() <<std::endl;
     std::cout << GridLogMessage << "Solver breakdown "<<std::endl;
     std::cout << GridLogMessage << "\tMatrix     " << MatrixTimer.Elapsed() <<std::endl;
@@ -256,118 +233,5 @@ public:
 
   }
 };
-
-
-template <class Field>
-class ConjugateGradientPolynomial : public ConjugateGradient<Field> {
-public:
-  // Optionally record the CG polynomial
-  std::vector<double> ak;
-  std::vector<double> bk;
-  std::vector<double> poly_p;
-  std::vector<double> poly_r;
-  std::vector<double> poly_Ap;
-  std::vector<double> polynomial;
-
-public:
-  ConjugateGradientPolynomial(RealD tol, Integer maxit, bool err_on_no_conv = true)
-    : ConjugateGradient<Field>(tol,maxit,err_on_no_conv)
-  { };
-  void PolyHermOp(LinearOperatorBase<Field> &Linop, const Field &src, Field &psi)
-  {
-    Field tmp(src.Grid());
-    Field AtoN(src.Grid());
-    AtoN = src;
-    psi=AtoN*polynomial[0];
-    for(int n=1;n<polynomial.size();n++){
-      tmp = AtoN;
-      Linop.HermOp(tmp,AtoN);
-      psi = psi + polynomial[n]*AtoN;
-    }
-  }
-  void CGsequenceHermOp(LinearOperatorBase<Field> &Linop, const Field &src, Field &x)
-  {
-    Field Ap(src.Grid());
-    Field r(src.Grid());
-    Field p(src.Grid());
-    p=src;
-    r=src;
-    x=Zero();
-    x.Checkerboard()=src.Checkerboard();
-    for(int k=0;k<ak.size();k++){
-      x = x + ak[k]*p;
-      Linop.HermOp(p,Ap);
-      r = r - ak[k] * Ap;
-      p = r + bk[k] * p;
-    }
-  }
-  void Solve(LinearOperatorBase<Field> &Linop, const Field &src, Field &psi)
-  {
-    psi=Zero();
-    this->operator ()(Linop,src,psi);
-  }
-  virtual void LogBegin(void)
-  {
-    std::cout << "ConjugageGradientPolynomial::LogBegin() "<<std::endl;
-    ak.resize(0);
-    bk.resize(0);
-    polynomial.resize(0);
-    poly_Ap.resize(0);
-    poly_Ap.resize(0);
-    poly_p.resize(1);
-    poly_r.resize(1);
-    poly_p[0]=1.0;
-    poly_r[0]=1.0;
-  };
-  virtual void LogIteration(int k,RealD a,RealD b)
-  {
-    // With zero guess,
-    // p = r = src
-    //
-    // iterate:
-    //   x =  x + a p
-    //   r =  r - a A p
-    //   p =  r + b p
-    //
-    // [0]
-    // r = x
-    // p = x
-    // Ap=0
-    //
-    // [1]
-    // Ap = A x + 0  ==> shift poly P right by 1 and add 0.
-    // x  = x + a p  ==> add polynomials term by term 
-    // r  = r - a A p  ==> add polynomials term by term
-    // p  = r + b p  ==> add polynomials term by term
-    //
-    std::cout << "ConjugageGradientPolynomial::LogIteration() "<<k<<std::endl;
-    ak.push_back(a);
-    bk.push_back(b);
-    //  Ap= right_shift(p)
-    poly_Ap.resize(k+1);
-    poly_Ap[0]=0.0;
-    for(int i=0;i<k;i++){
-      poly_Ap[i+1]=poly_p[i];
-    }
-
-    //  x = x + a p
-    polynomial.resize(k);
-    polynomial[k-1]=0.0;
-    for(int i=0;i<k;i++){
-      polynomial[i] = polynomial[i] + a * poly_p[i];
-    }
-    
-    //  r = r - a Ap
-    //  p = r + b p
-    poly_r.resize(k+1);
-    poly_p.resize(k+1);
-    poly_r[k] = poly_p[k] = 0.0;
-    for(int i=0;i<k+1;i++){
-      poly_r[i] = poly_r[i] - a * poly_Ap[i];
-      poly_p[i] = poly_r[i] + b * poly_p[i];
-    }
-  }
-};
-
 NAMESPACE_END(Grid);
 #endif

Grid/algorithms/iterative/ConjugateGradientMixedPrec.h

@@ -116,14 +116,14 @@ NAMESPACE_BEGIN(Grid);
       //Compute double precision rsd and also new RHS vector.
       Linop_d.HermOp(sol_d, tmp_d);
       RealD norm = axpy_norm(src_d, -1., tmp_d, src_d_in); //src_d is residual vector
-      std::cout<<GridLogMessage<<" rsd norm "<<norm<<std::endl;
+      
       std::cout<<GridLogMessage<<"MixedPrecisionConjugateGradient: Outer iteration " <<outer_iter<<" residual "<< norm<< " target "<< stop<<std::endl;
 
       if(norm < OuterLoopNormMult * stop){
 	std::cout<<GridLogMessage<<"MixedPrecisionConjugateGradient: Outer iteration converged on iteration " <<outer_iter <<std::endl;
 	break;
       }
-      while(norm * inner_tol * inner_tol < stop*1.01) inner_tol *= 2;  // inner_tol = sqrt(stop/norm) ??
+      while(norm * inner_tol * inner_tol < stop) inner_tol *= 2;  // inner_tol = sqrt(stop/norm) ??
 
       PrecChangeTimer.Start();
       precisionChange(src_f, src_d, pc_wk_dp_to_sp);

Grid/algorithms/iterative/ConjugateGradientMultiShift.h

@@ -102,11 +102,11 @@ public:
     assert(mass.size()==nshift);
     assert(mresidual.size()==nshift);
   
-    // remove dynamic sized arrays on stack; 2d is a pain with vector
-    std::vector<RealD>  bs(nshift);
-    std::vector<RealD>  rsq(nshift);
-    std::vector<std::array<RealD,2> >  z(nshift);
-    std::vector<int>     converged(nshift);
+    // dynamic sized arrays on stack; 2d is a pain with vector
+    RealD  bs[nshift];
+    RealD  rsq[nshift];
+    RealD  z[nshift][2];
+    int     converged[nshift];
   
     const int       primary =0;
   

Grid/algorithms/iterative/ConjugateGradientMultiShiftCleanup.h

@@ -123,11 +123,11 @@ public:
     assert(mresidual.size()==nshift);
   
     // dynamic sized arrays on stack; 2d is a pain with vector
-    std::vector<RealD>  bs(nshift);
-    std::vector<RealD>  rsq(nshift);
-    std::vector<RealD>  rsqf(nshift);
-    std::vector<std::array<RealD,2> >  z(nshift);
-    std::vector<int>     converged(nshift);
+    RealD  bs[nshift];
+    RealD  rsq[nshift];
+    RealD  rsqf[nshift];
+    RealD  z[nshift][2];
+    int     converged[nshift];
   
     const int       primary =0;
   

Grid/algorithms/iterative/ConjugateGradientMultiShiftMixedPrec.h

@@ -156,11 +156,11 @@ public:
     assert(mresidual.size()==nshift);
   
     // dynamic sized arrays on stack; 2d is a pain with vector
-    std::vector<RealD>  bs(nshift);
-    std::vector<RealD>  rsq(nshift);
-    std::vector<RealD>  rsqf(nshift);
-    std::vector<std::array<RealD,2> >  z(nshift);
-    std::vector<int>     converged(nshift);
+    RealD  bs[nshift];
+    RealD  rsq[nshift];
+    RealD  rsqf[nshift];
+    RealD  z[nshift][2];
+    int     converged[nshift];
   
     const int       primary =0;
   

Grid/algorithms/iterative/ImplicitlyRestartedBlockLanczosCoarse.h

@@ -143,7 +143,7 @@ public:
       ip = innerProduct(evec[j],w); 
       if(if_print) 
       if( norm(ip)/norm2(w) > 1e-14)
-	Glog<<"orthogonalize before: "<<j<<" of "<<k<<" "<< ip <<std::endl;
+      Glog<<"orthogonalize before: "<<j<<" of "<<k<<" "<< ip <<std::endl;
       w = w - ip * evec[j];
       if(if_print) {
         ip = innerProduct(evec[j],w); 
@@ -279,16 +279,16 @@ public:
       Qt = Eigen::MatrixXcd::Identity(Nm,Nm);
       diagonalize(eval2,lmd2,lme2,Nu,Nm,Nm,Qt,grid);
       _sort.push(eval2,Nm);
-      //      Glog << "#Ritz value before shift: "<< std::endl;
+      Glog << "#Ritz value before shift: "<< std::endl;
       for(int i=0; i<Nm; ++i){
-	//	std::cout.precision(13);
-	//	std::cout << "[" << std::setw(4)<< std::setiosflags(std::ios_base::right) <<i<<"] ";
-	//	std::cout << "Rval = "<<std::setw(20)<< std::setiosflags(std::ios_base::left)<< eval2[i] << std::endl;
+	std::cout.precision(13);
+	std::cout << "[" << std::setw(4)<< std::setiosflags(std::ios_base::right) <<i<<"] ";
+	std::cout << "Rval = "<<std::setw(20)<< std::setiosflags(std::ios_base::left)<< eval2[i] << std::endl;
       }
       
       //----------------------------------------------------------------------
       if ( Nm>Nk ) {
-	//        Glog <<" #Apply shifted QR transformations "<<std::endl;
+        Glog <<" #Apply shifted QR transformations "<<std::endl;
         //int k2 = Nk+Nu;
         int k2 = Nk;
       
@@ -326,11 +326,11 @@ public:
         Qt = Eigen::MatrixXcd::Identity(Nm,Nm);
         diagonalize(eval2,lmd2,lme2,Nu,Nk,Nm,Qt,grid);
         _sort.push(eval2,Nk);
-	//	Glog << "#Ritz value after shift: "<< std::endl;
+	Glog << "#Ritz value after shift: "<< std::endl;
         for(int i=0; i<Nk; ++i){
-	  //	  std::cout.precision(13);
-	  //	  std::cout << "[" << std::setw(4)<< std::setiosflags(std::ios_base::right) <<i<<"] ";
-	  //	  std::cout << "Rval = "<<std::setw(20)<< std::setiosflags(std::ios_base::left)<< eval2[i] << std::endl;
+	  //          std::cout.precision(13);
+	  //          std::cout << "[" << std::setw(4)<< std::setiosflags(std::ios_base::right) <<i<<"] ";
+	  //          std::cout << "Rval = "<<std::setw(20)<< std::setiosflags(std::ios_base::left)<< eval2[i] << std::endl;
         }
       }
       //----------------------------------------------------------------------
@@ -644,7 +644,7 @@ private:
       //      for (int u=0; u<mrhs; ++u) Glog << " out["<<u<<"] = "<<norm2(out[u])<<std::endl;
       k_start +=mrhs;
     }
-    //    Glog << "LinAlg "<< std::endl;
+    Glog << "LinAlg "<< std::endl;
     
     if (b>0) {
       for (int u=0; u<Nu; ++u) {
@@ -678,7 +678,7 @@ private:
       }
       w_copy[u] = w[u];
     }
-    //    Glog << "LinAlg done"<< std::endl;
+    Glog << "LinAlg done"<< std::endl;
     
     // In block version, the steps 6 and 7 in Lanczos construction is
     // replaced by the QR decomposition of new basis block.
@@ -691,15 +691,15 @@ private:
     }
 
     // re-orthogonalization for numerical stability
-    //    Glog << "Gram Schmidt"<< std::endl;
+    Glog << "Gram Schmidt"<< std::endl;
     orthogonalize(w,Nu,evec,R);
     // QR part
     for (int u=1; u<Nu; ++u) {
       orthogonalize(w[u],w,u);
     }
-    //    Glog << "Gram Schmidt done "<< std::endl;
+    Glog << "Gram Schmidt done "<< std::endl;
     
-    //    Glog << "LinAlg "<< std::endl;
+    Glog << "LinAlg "<< std::endl;
     for (int u=0; u<Nu; ++u) {
       //for (int v=0; v<Nu; ++v) {
       for (int v=u; v<Nu; ++v) {
@@ -716,7 +716,7 @@ private:
 	//        Glog <<" In block "<< b << "," <<" beta[" << u << "," << k-L << "] = " << lme[u][k] << std::endl;
       }
     }
-    //    Glog << "LinAlg done "<< std::endl;
+    Glog << "LinAlg done "<< std::endl;
 
     if (b < Nm/Nu-1) {
       for (int u=0; u<Nu; ++u) {
@@ -935,7 +935,7 @@ if (1){
          int Nu, int Nb, int Nk, int Nm,
          Eigen::MatrixXcd& M)
   {
-    //    Glog << "unpackHermitBlockTriDiagMatToEigen() begin" << '\n'; 
+    Glog << "unpackHermitBlockTriDiagMatToEigen() begin" << '\n'; 
     assert( Nk%Nu == 0 && Nm%Nu == 0 );
     assert( Nk <= Nm );
     M = Eigen::MatrixXcd::Zero(Nk,Nk);
@@ -953,7 +953,7 @@ if (1){
         M(u+(k/Nu)*Nu,k-Nu) = lme[u][k-Nu];
       }
     }
-    //    Glog << "unpackHermitBlockTriDiagMatToEigen() end" << std::endl; 
+    Glog << "unpackHermitBlockTriDiagMatToEigen() end" << std::endl; 
   }
  
 
@@ -963,7 +963,7 @@ if (1){
          int Nu, int Nb, int Nk, int Nm,
          Eigen::MatrixXcd& M)
   {
-    //    Glog << "packHermitBlockTriDiagMatfromEigen() begin" << '\n'; 
+    Glog << "packHermitBlockTriDiagMatfromEigen() begin" << '\n'; 
     assert( Nk%Nu == 0 && Nm%Nu == 0 );
     assert( Nk <= Nm );
     
@@ -979,7 +979,7 @@ if (1){
         lme[u][k-Nu] = M(u+(k/Nu)*Nu,k-Nu);
       }
     }
-    //    Glog << "packHermitBlockTriDiagMatfromEigen() end" <<std::endl; 
+    Glog << "packHermitBlockTriDiagMatfromEigen() end" <<std::endl; 
   }
 
 
@@ -988,7 +988,7 @@ if (1){
 		            RealD Dsh,
 		            Eigen::MatrixXcd& Qprod)
   {
-    //    Glog << "shiftedQRDecompEigen() begin" << '\n'; 
+    Glog << "shiftedQRDecompEigen() begin" << '\n'; 
     Eigen::MatrixXcd Q = Eigen::MatrixXcd::Zero(Nm,Nm);
     Eigen::MatrixXcd R = Eigen::MatrixXcd::Zero(Nm,Nm);
     Eigen::MatrixXcd Mtmp = Eigen::MatrixXcd::Zero(Nm,Nm);
@@ -1004,7 +1004,7 @@ if (1){
                         // lower triangular part used to represent series
                         // of Q sequence.
 
-    //    Glog << "shiftedQRDecompEigen() Housholder & QR" << '\n'; 
+    Glog << "shiftedQRDecompEigen() Housholder & QR" << '\n'; 
     // equivalent operation of Qprod *= Q
     //M = Eigen::MatrixXcd::Zero(Nm,Nm);
     
@@ -1025,7 +1025,7 @@ if (1){
     
     Mtmp = Eigen::MatrixXcd::Zero(Nm,Nm);
 
-    //    Glog << "shiftedQRDecompEigen() Mtmp create" << '\n'; 
+    Glog << "shiftedQRDecompEigen() Mtmp create" << '\n'; 
     for (int i=0; i<Nm; ++i) {
       for (int j=0; j<Nm-(Nu+1); ++j) {
         for (int k=0; k<Nu+1+j; ++k) {
@@ -1033,7 +1033,7 @@ if (1){
         }
       }
     }
-    //    Glog << "shiftedQRDecompEigen() Mtmp loop1" << '\n'; 
+    Glog << "shiftedQRDecompEigen() Mtmp loop1" << '\n'; 
     for (int i=0; i<Nm; ++i) {
       for (int j=Nm-(Nu+1); j<Nm; ++j) {
         for (int k=0; k<Nm; ++k) {
@@ -1041,7 +1041,7 @@ if (1){
         }
       }
     }
-    //    Glog << "shiftedQRDecompEigen() Mtmp loop2" << '\n'; 
+    Glog << "shiftedQRDecompEigen() Mtmp loop2" << '\n'; 
     
     //static int ntimes = 2;
     //for (int j=0; j<Nm-(ntimes*Nu); ++j) {
@@ -1067,13 +1067,13 @@ if (1){
         Mtmp(j,i) = conj(Mtmp(i,j));
       }
     }
-    //    Glog << "shiftedQRDecompEigen() Mtmp loop3" << '\n'; 
+    Glog << "shiftedQRDecompEigen() Mtmp loop3" << '\n'; 
 
     for (int i=0; i<Nm; ++i) {
       Mtmp(i,i) = real(Mtmp(i,i)) + Dsh;
     }
     
-    //    Glog << "shiftedQRDecompEigen() Mtmp loop4" << '\n'; 
+    Glog << "shiftedQRDecompEigen() Mtmp loop4" << '\n'; 
     M = Mtmp;
 
     //M = Q.adjoint()*(M*Q);
@@ -1085,7 +1085,7 @@ if (1){
     //  }
     //}
     
-    //    Glog << "shiftedQRDecompEigen() end" <<std::endl; 
+    Glog << "shiftedQRDecompEigen() end" <<std::endl; 
   }
 
   void exampleQRDecompEigen(void)

Grid/algorithms/iterative/NormalEquations.h

@@ -60,32 +60,6 @@ public:
   }     
 };
 
-template<class Field> class NormalResidual : public LinearFunction<Field>{
-private:
-  SparseMatrixBase<Field> & _Matrix;
-  OperatorFunction<Field> & _HermitianSolver;
-  LinearFunction<Field>   & _Guess;
-public:
-
-  /////////////////////////////////////////////////////
-  // Wrap the usual normal equations trick
-  /////////////////////////////////////////////////////
- NormalResidual(SparseMatrixBase<Field> &Matrix, OperatorFunction<Field> &HermitianSolver,
-		 LinearFunction<Field> &Guess) 
-   :  _Matrix(Matrix), _HermitianSolver(HermitianSolver), _Guess(Guess) {}; 
-
-  void operator() (const Field &in, Field &out){
- 
-    Field res(in.Grid());
-    Field tmp(in.Grid());
-
-    MMdagLinearOperator<SparseMatrixBase<Field>,Field> MMdagOp(_Matrix);
-    _Guess(in,res);
-    _HermitianSolver(MMdagOp,in,res);  // M Mdag res = in ;
-    _Matrix.Mdag(res,out);             // out = Mdag res
-  }     
-};
-
 template<class Field> class HPDSolver : public LinearFunction<Field> {
 private:
   LinearOperatorBase<Field> & _Matrix;

Grid/algorithms/iterative/PowerMethod.h

@@ -20,7 +20,7 @@ template<class Field> class PowerMethod
     RealD evalMaxApprox = 0.0; 
     auto src_n = src; 
     auto tmp = src; 
-    const int _MAX_ITER_EST_ = 200; 
+    const int _MAX_ITER_EST_ = 100; 
 
     for (int i=0;i<_MAX_ITER_EST_;i++) { 
       
@@ -30,17 +30,18 @@ template<class Field> class PowerMethod
       RealD vden = norm2(src_n); 
       RealD na = vnum/vden; 
 
-      std::cout << GridLogMessage << "PowerMethod: Current approximation of largest eigenvalue " << na << std::endl;
+      std::cout << GridLogIterative << "PowerMethod: Current approximation of largest eigenvalue " << na << std::endl;
       
-      //      if ( (fabs(evalMaxApprox/na - 1.0) < 0.0001) || (i==_MAX_ITER_EST_-1) ) { 
-	// 	evalMaxApprox = na; 
-	// 	return evalMaxApprox; 
-      //      } 
+      if ( (fabs(evalMaxApprox/na - 1.0) < 0.001) || (i==_MAX_ITER_EST_-1) ) { 
+ 	evalMaxApprox = na; 
+	std::cout << GridLogMessage << " Approximation of largest eigenvalue: " << evalMaxApprox << std::endl;
+ 	return evalMaxApprox; 
+      } 
       evalMaxApprox = na; 
       src_n = tmp;
     }
-    std::cout << GridLogMessage << " Approximation of largest eigenvalue: " << evalMaxApprox << std::endl;
-    return evalMaxApprox;
+    assert(0);
+    return 0;
   }
 };
 }

Grid/algorithms/iterative/PowerSpectrum.h

@@ -1,76 +0,0 @@
-#pragma once
-namespace Grid {
-
-class Band
-{
-  RealD lo, hi;
-public:
-  Band(RealD _lo,RealD _hi)
-  {
-    lo=_lo;
-    hi=_hi;
-  }
-  RealD operator() (RealD x){
-    if ( x>lo && x<hi ){
-      return 1.0;
-    } else {
-      return 0.0;
-    }
-  }
-};
-
-class PowerSpectrum
-{ 
- public: 
-
-  template<typename T>  static RealD normalise(T& v) 
-  {
-    RealD nn = norm2(v);
-    nn = sqrt(nn);
-    v = v * (1.0/nn);
-    return nn;
-  }
-
-  std::vector<RealD> ranges;
-  std::vector<int> order;
-  
-  PowerSpectrum(  std::vector<RealD> &bins, std::vector<int> &_order ) : ranges(bins), order(_order)  { };
-
-  template<class Field>
-  RealD operator()(LinearOperatorBase<Field> &HermOp, const Field &src) 
-  { 
-    GridBase *grid = src.Grid(); 
-    int N=ranges.size();
-    RealD hi = ranges[N-1];
-
-    RealD lo_band = 0.0;
-    RealD hi_band;
-    RealD nn=norm2(src);
-    RealD ss=0.0;
-
-    Field tmp = src;
-
-    for(int b=0;b<N;b++){
-      hi_band = ranges[b];
-      Band Notch(lo_band,hi_band);
-      
-      Chebyshev<Field> polynomial;
-      polynomial.Init(0.0,hi,order[b],Notch);
-      polynomial.JacksonSmooth();
-
-      polynomial(HermOp,src,tmp) ;
-
-      RealD p=norm2(tmp);
-      ss=ss+p;
-      std::cout << GridLogMessage << " PowerSpectrum Band["<<lo_band<<","<<hi_band<<"] power "<<norm2(tmp)/nn<<std::endl;
-      
-      lo_band=hi_band;
-    }
-    std::cout << GridLogMessage << " PowerSpectrum total power "<<ss/nn<<std::endl;
-    std::cout << GridLogMessage << " PowerSpectrum total power (unnormalised) "<<nn<<std::endl;
-
-    return 0;
-  };
-};
-  
-}

Grid/algorithms/iterative/PrecGeneralisedConjugateResidualNonHermitian.h

@@ -74,7 +74,7 @@ public:
 
   void operator() (const Field &src, Field &psi){
 
-    //    psi=Zero();
+    psi=Zero();
     RealD cp, ssq,rsq;
     ssq=norm2(src);
     rsq=Tolerance*Tolerance*ssq;

Grid/algorithms/multigrid/Aggregates.h

@@ -30,8 +30,6 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
 /*  END LEGAL */
 #pragma once
 
-#include <Grid/algorithms/iterative/PrecGeneralisedConjugateResidualNonHermitian.h>
-
 NAMESPACE_BEGIN(Grid);
 
 inline RealD AggregatePowerLaw(RealD x)
@@ -126,53 +124,6 @@ public:
     }
   }
 
-  virtual void CreateSubspaceGCR(GridParallelRNG  &RNG,LinearOperatorBase<FineField> &DiracOp,int nn=nbasis)
-  {
-    RealD scale;
-
-    TrivialPrecon<FineField> simple_fine;
-    PrecGeneralisedConjugateResidualNonHermitian<FineField> GCR(0.001,30,DiracOp,simple_fine,12,12);
-    FineField noise(FineGrid);
-    FineField src(FineGrid);
-    FineField guess(FineGrid);
-    FineField Mn(FineGrid);
-
-    for(int b=0;b<nn;b++){
-      
-      subspace[b] = Zero();
-      gaussian(RNG,noise);
-      scale = std::pow(norm2(noise),-0.5); 
-      noise=noise*scale;
-      
-      DiracOp.Op(noise,Mn); std::cout<<GridLogMessage << "noise   ["<<b<<"] <n|Op|n> "<<innerProduct(noise,Mn)<<std::endl;
-
-      for(int i=0;i<3;i++){
-	//  void operator() (const Field &src, Field &psi){
-#if 1
-	std::cout << GridLogMessage << " inverting on noise "<<std::endl;
-	src = noise;
-	guess=Zero();
-	GCR(src,guess);
-	subspace[b] = guess;
-#else
-	std::cout << GridLogMessage << " inverting on zero "<<std::endl;
-	src=Zero();
-	guess = noise;
-	GCR(src,guess);
-	subspace[b] = guess;
-#endif
-	noise = subspace[b];
-	scale = std::pow(norm2(noise),-0.5); 
-	noise=noise*scale;
-
-      }
-
-      DiracOp.Op(noise,Mn); std::cout<<GridLogMessage << "filtered["<<b<<"] <f|Op|f> "<<innerProduct(noise,Mn)<<std::endl;
-      subspace[b]   = noise;
-
-    }
-  }
-
   ////////////////////////////////////////////////////////////////////////////////////////////////
   // World of possibilities here. But have tried quite a lot of experiments (250+ jobs run on Summit)
   // and this is the best I found
@@ -209,21 +160,14 @@ public:
 
     int b =0;
     {
-      ComplexD ip;
       // Filter
       Chebyshev<FineField> Cheb(lo,hi,orderfilter);
       Cheb(hermop,noise,Mn);
       // normalise
       scale = std::pow(norm2(Mn),-0.5); 	Mn=Mn*scale;
       subspace[b]   = Mn;
-
-      hermop.Op(Mn,tmp);
-      ip= innerProduct(Mn,tmp); 
-      std::cout<<GridLogMessage << "filt ["<<b<<"] <n|Op|n> "<<norm2(tmp)<<" "<<ip<<std::endl;
-
-      hermop.AdjOp(Mn,tmp); 
-      ip = innerProduct(Mn,tmp); 
-      std::cout<<GridLogMessage << "filt ["<<b<<"] <n|AdjOp|n> "<<norm2(tmp)<<" "<<ip<<std::endl;
+      hermop.Op(Mn,tmp); 
+      std::cout<<GridLogMessage << "filt ["<<b<<"] <n|MdagM|n> "<<norm2(tmp)<<std::endl;
       b++;
     }
 
@@ -269,18 +213,8 @@ public:
 	  Mn=*Tnp;
 	  scale = std::pow(norm2(Mn),-0.5);         Mn=Mn*scale;
 	  subspace[b] = Mn;
-
-
-	  ComplexD ip;
-
-	  hermop.Op(Mn,tmp);
-	  ip= innerProduct(Mn,tmp); 
-	  std::cout<<GridLogMessage << "filt ["<<b<<"] <n|Op|n> "<<norm2(tmp)<<" "<<ip<<std::endl;
-
-	  hermop.AdjOp(Mn,tmp); 
-	  ip = innerProduct(Mn,tmp); 
-	  std::cout<<GridLogMessage << "filt ["<<b<<"] <n|AdjOp|n> "<<norm2(tmp)<<" "<<ip<<std::endl;
-	  
+	  hermop.Op(Mn,tmp); 
+	  std::cout<<GridLogMessage << n<<" filt ["<<b<<"] <n|MdagM|n> "<<norm2(tmp)<<std::endl;
 	  b++;
 	}
 
@@ -294,70 +228,6 @@ public:
     }
     assert(b==nn);
   }
-
-
-  virtual void CreateSubspacePolyCheby(GridParallelRNG  &RNG,LinearOperatorBase<FineField> &hermop,
-				       int nn,
-				       double hi,
-				       double lo1,
-				       int orderfilter,
-				       double lo2,
-				       int orderstep)
-  {
-    RealD scale;
-
-    FineField noise(FineGrid);
-    FineField Mn(FineGrid);
-    FineField tmp(FineGrid);
-
-    // New normalised noise
-    gaussian(RNG,noise);
-    scale = std::pow(norm2(noise),-0.5); 
-    noise=noise*scale;
-
-    std::cout << GridLogMessage<<" CreateSubspacePolyCheby "<<std::endl;
-    // Initial matrix element
-    hermop.Op(noise,Mn);
-    std::cout<<GridLogMessage << "noise <n|MdagM|n> "<<norm2(Mn)<<std::endl;
-
-    int b =0;
-    {
-      // Filter
-      std::cout << GridLogMessage << "Cheby "<<lo1<<","<<hi<<" "<<orderstep<<std::endl;
-      Chebyshev<FineField> Cheb(lo1,hi,orderfilter);
-      Cheb(hermop,noise,Mn);
-      // normalise
-      scale = std::pow(norm2(Mn),-0.5); 	Mn=Mn*scale;
-      subspace[b]   = Mn;
-      hermop.Op(Mn,tmp); 
-      std::cout<<GridLogMessage << "filt ["<<b<<"] <n|MdagM|n> "<<norm2(tmp)<<std::endl;
-      std::cout<<GridLogMessage << "filt ["<<b<<"] <n|n> "<<norm2(Mn)<<std::endl;
-    }
-
-    // Generate a full sequence of Chebyshevs
-    for(int n=1;n<nn;n++){
-      std::cout << GridLogMessage << "Cheby "<<lo2<<","<<hi<<" "<<orderstep<<std::endl;
-      Chebyshev<FineField> Cheb(lo2,hi,orderstep);
-      Cheb(hermop,subspace[n-1],Mn);
-
-      for(int m=0;m<n;m++){
-	ComplexD c = innerProduct(subspace[m],Mn);
-	Mn = Mn - c*subspace[m];
-      }
-      
-      // normalise
-      scale = std::pow(norm2(Mn),-0.5);
-      Mn=Mn*scale;
-      
-      subspace[n]=Mn;
-      
-      hermop.Op(Mn,tmp); 
-      std::cout<<GridLogMessage << "filt ["<<n<<"] <n|MdagM|n> "<<norm2(tmp)<<std::endl;
-      std::cout<<GridLogMessage << "filt ["<<n<<"] <n|n> "<<norm2(Mn)<<std::endl;
-
-    }
-  }
-
   virtual void CreateSubspaceChebyshev(GridParallelRNG  &RNG,LinearOperatorBase<FineField> &hermop,
 				       int nn,
 				       double hi,

Grid/algorithms/multigrid/CoarsenedMatrix.h

@@ -99,7 +99,7 @@ public:
   CoarseMatrix AselfInvEven;
   CoarseMatrix AselfInvOdd;
 
-  deviceVector<RealD> dag_factor;
+  Vector<RealD> dag_factor;
 
   ///////////////////////
   // Interface
@@ -124,13 +124,9 @@ public:
     int npoint = geom.npoint;
     typedef LatticeView<Cobj> Aview;
       
-    deviceVector<Aview> AcceleratorViewContainer(geom.npoint);
-    hostVector<Aview>   hAcceleratorViewContainer(geom.npoint);
+    Vector<Aview> AcceleratorViewContainer;
   
-    for(int p=0;p<geom.npoint;p++) {
-      hAcceleratorViewContainer[p] = A[p].View(AcceleratorRead);
-      acceleratorPut(AcceleratorViewContainer[p],hAcceleratorViewContainer[p]);
-    }
+    for(int p=0;p<geom.npoint;p++) AcceleratorViewContainer.push_back(A[p].View(AcceleratorRead));
     Aview *Aview_p = & AcceleratorViewContainer[0];
 
     const int Nsimd = CComplex::Nsimd();
@@ -165,7 +161,7 @@ public:
       coalescedWrite(out_v[ss](b),res);
       });
 
-    for(int p=0;p<geom.npoint;p++) hAcceleratorViewContainer[p].ViewClose();
+    for(int p=0;p<geom.npoint;p++) AcceleratorViewContainer[p].ViewClose();
   };
 
   void Mdag (const CoarseVector &in, CoarseVector &out)
@@ -194,14 +190,9 @@ public:
     int npoint = geom.npoint;
     typedef LatticeView<Cobj> Aview;
 
+    Vector<Aview> AcceleratorViewContainer;
 
-    deviceVector<Aview> AcceleratorViewContainer(geom.npoint);
-    hostVector<Aview>   hAcceleratorViewContainer(geom.npoint);
-  
-    for(int p=0;p<geom.npoint;p++) {
-      hAcceleratorViewContainer[p] = A[p].View(AcceleratorRead);
-      acceleratorPut(AcceleratorViewContainer[p],hAcceleratorViewContainer[p]);
-    }
+    for(int p=0;p<geom.npoint;p++) AcceleratorViewContainer.push_back(A[p].View(AcceleratorRead));
     Aview *Aview_p = & AcceleratorViewContainer[0];
 
     const int Nsimd = CComplex::Nsimd();
@@ -210,10 +201,10 @@ public:
 
     int osites=Grid()->oSites();
 
-    deviceVector<int> points(geom.npoint);
-    for(int p=0; p<geom.npoint; p++) { 
-      acceleratorPut(points[p],geom.points_dagger[p]);
-    }
+    Vector<int> points(geom.npoint, 0);
+    for(int p=0; p<geom.npoint; p++)
+      points[p] = geom.points_dagger[p];
+
     auto points_p = &points[0];
 
     RealD* dag_factor_p = &dag_factor[0];
@@ -245,7 +236,7 @@ public:
       coalescedWrite(out_v[ss](b),res);
       });
 
-    for(int p=0;p<geom.npoint;p++) hAcceleratorViewContainer[p].ViewClose();
+    for(int p=0;p<geom.npoint;p++) AcceleratorViewContainer[p].ViewClose();
   }
 
   void MdirComms(const CoarseVector &in)
@@ -260,14 +251,8 @@ public:
     out.Checkerboard() = in.Checkerboard();
 
     typedef LatticeView<Cobj> Aview;
-
-    deviceVector<Aview> AcceleratorViewContainer(geom.npoint);
-    hostVector<Aview>   hAcceleratorViewContainer(geom.npoint);
-  
-    for(int p=0;p<geom.npoint;p++) {
-      hAcceleratorViewContainer[p] = A[p].View(AcceleratorRead);
-      acceleratorPut(AcceleratorViewContainer[p],hAcceleratorViewContainer[p]);
-    }
+    Vector<Aview> AcceleratorViewContainer;
+    for(int p=0;p<geom.npoint;p++) AcceleratorViewContainer.push_back(A[p].View(AcceleratorRead));
     Aview *Aview_p = & AcceleratorViewContainer[0];
 
     autoView( out_v , out, AcceleratorWrite);
@@ -300,7 +285,7 @@ public:
       }
       coalescedWrite(out_v[ss](b),res);
     });
-    for(int p=0;p<geom.npoint;p++) hAcceleratorViewContainer[p].ViewClose();
+    for(int p=0;p<geom.npoint;p++) AcceleratorViewContainer[p].ViewClose();
   }
   void MdirAll(const CoarseVector &in,std::vector<CoarseVector> &out)
   {
@@ -484,20 +469,14 @@ public:
 
     // determine in what order we need the points
     int npoint = geom.npoint-1;
-    deviceVector<int> points(npoint);
-    for(int p=0; p<npoint; p++) {
-      int val = (dag && !hermitian) ? geom.points_dagger[p] : p;
-      acceleratorPut(points[p], val);
-    }
+    Vector<int> points(npoint, 0);
+    for(int p=0; p<npoint; p++)
+      points[p] = (dag && !hermitian) ? geom.points_dagger[p] : p;
+
     auto points_p = &points[0];
 
-    deviceVector<Aview> AcceleratorViewContainer(geom.npoint);
-    hostVector<Aview>   hAcceleratorViewContainer(geom.npoint);
-  
-    for(int p=0;p<geom.npoint;p++) {
-      hAcceleratorViewContainer[p] = a[p].View(AcceleratorRead);
-      acceleratorPut(AcceleratorViewContainer[p],hAcceleratorViewContainer[p]);
-    }
+    Vector<Aview> AcceleratorViewContainer;
+    for(int p=0;p<npoint;p++) AcceleratorViewContainer.push_back(a[p].View(AcceleratorRead));
     Aview *Aview_p = & AcceleratorViewContainer[0];
 
     const int Nsimd = CComplex::Nsimd();
@@ -560,7 +539,7 @@ public:
       });
     }
 
-    for(int p=0;p<npoint;p++) hAcceleratorViewContainer[p].ViewClose();
+    for(int p=0;p<npoint;p++) AcceleratorViewContainer[p].ViewClose();
   }
   
   CoarsenedMatrix(GridCartesian &CoarseGrid, int hermitian_=0) 	:
@@ -611,13 +590,11 @@ public:
     }
 
     // GPU readable prefactor
-    std::vector<RealD> h_dag_factor(nbasis*nbasis);
     thread_for(i, nbasis*nbasis, {
       int j = i/nbasis;
       int k = i%nbasis;
-      h_dag_factor[i] = dag_factor_eigen(j, k);
+      dag_factor[i] = dag_factor_eigen(j, k);
     });
-    acceleratorCopyToDevice(&h_dag_factor[0],&dag_factor[0],dag_factor.size()*sizeof(RealD));
   }
 
   void CoarsenOperator(GridBase *FineGrid,LinearOperatorBase<Lattice<Fobj> > &linop,

Grid/allocator/AlignedAllocator.h

@@ -69,7 +69,7 @@ public:
   }
 
   // FIXME: hack for the copy constructor: it must be avoided to avoid single thread loop
-  void construct(pointer __p, const _Tp& __val) { };
+  void construct(pointer __p, const _Tp& __val) { assert(0);};
   void construct(pointer __p) { };
   void destroy(pointer __p) { };
 };
@@ -174,10 +174,19 @@ template<typename _Tp>  inline bool operator!=(const devAllocator<_Tp>&, const d
 ////////////////////////////////////////////////////////////////////////////////
 // Template typedefs
 ////////////////////////////////////////////////////////////////////////////////
-template<class T> using hostVector          = std::vector<T,alignedAllocator<T> >;           // Needs autoview
-template<class T> using Vector              = std::vector<T,uvmAllocator<T> >;               // Really want to deprecate
-template<class T> using uvmVector           = std::vector<T,uvmAllocator<T> >;               // auto migrating page
-template<class T> using deviceVector        = std::vector<T,devAllocator<T> >;               // device vector
+#ifdef ACCELERATOR_CSHIFT
+// Cshift on device
+template<class T> using cshiftAllocator = devAllocator<T>;
+#else
+// Cshift on host
+template<class T> using cshiftAllocator = std::allocator<T>;
+#endif
+
+template<class T> using Vector        = std::vector<T,uvmAllocator<T> >;           
+template<class T> using stencilVector = std::vector<T,alignedAllocator<T> >;           
+template<class T> using commVector    = std::vector<T,devAllocator<T> >;
+template<class T> using deviceVector  = std::vector<T,devAllocator<T> >;
+template<class T> using cshiftVector  = std::vector<T,cshiftAllocator<T> >;
 
 /*
 template<class T> class vecView
@@ -188,9 +197,8 @@ template<class T> class vecView
   ViewMode mode;
   void * cpu_ptr;
  public:
-  // Rvalue accessor
   accelerator_inline T & operator[](size_t i) const { return this->data[i]; };
-  vecView(Vector<T> &refer_to_me,ViewMode _mode)
+  vecView(std::vector<T> &refer_to_me,ViewMode _mode)
   {
     cpu_ptr = &refer_to_me[0];
     size = refer_to_me.size();
@@ -206,12 +214,22 @@ template<class T> class vecView
   }
 };
 
-template<class T> vecView<T> VectorView(Vector<T> &vec,ViewMode _mode)
+template<class T> vecView<T> VectorView(std::vector<T> &vec,ViewMode _mode)
 {
   vecView<T> ret(vec,_mode); // does the open
   return ret;                // must be closed
 }
 
+// Little autoscope assister
+template<class View> 
+class VectorViewCloser
+{
+  View v;  // Take a copy of view and call view close when I go out of scope automatically
+ public:
+  VectorViewCloser(View &_v) : v(_v) {};
+  ~VectorViewCloser() { auto ptr = v.cpu_ptr; v.ViewClose();  MemoryManager::NotifyDeletion(ptr);}
+};
+
 #define autoVecView(v_v,v,mode)					\
   auto v_v = VectorView(v,mode);				\
   ViewCloser<decltype(v_v)> _autoView##v_v(v_v);

Grid/allocator/MemoryManagerCache.cc

@@ -1,15 +1,16 @@
 #include <Grid/GridCore.h>
 #ifndef GRID_UVM
 
+#warning "Using explicit device memory copies"
 NAMESPACE_BEGIN(Grid);
 
 #define MAXLINE 512
 static char print_buffer [ MAXLINE ];
 
-#define mprintf(...) snprintf (print_buffer,MAXLINE, __VA_ARGS__ ); std::cout << GridLogMemory << print_buffer << std::endl;
-#define dprintf(...) snprintf (print_buffer,MAXLINE, __VA_ARGS__ ); std::cout << GridLogDebug  << print_buffer << std::endl;
+#define mprintf(...) snprintf (print_buffer,MAXLINE, __VA_ARGS__ ); std::cout << GridLogMemory << print_buffer;
+#define dprintf(...) snprintf (print_buffer,MAXLINE, __VA_ARGS__ ); std::cout << GridLogDebug << print_buffer;
 //#define dprintf(...) 
-//#define mprintf(...) 
+
 
 ////////////////////////////////////////////////////////////
 // For caching copies of data on device
@@ -110,7 +111,7 @@ void MemoryManager::AccDiscard(AcceleratorViewEntry &AccCache)
   ///////////////////////////////////////////////////////////
   assert(AccCache.state!=Empty);
   
-  dprintf("MemoryManager: Discard(%lx) %lx",(uint64_t)AccCache.CpuPtr,(uint64_t)AccCache.AccPtr); 
+  dprintf("MemoryManager: Discard(%lx) %lx\n",(uint64_t)AccCache.CpuPtr,(uint64_t)AccCache.AccPtr); 
   assert(AccCache.accLock==0);
   assert(AccCache.cpuLock==0);
   assert(AccCache.CpuPtr!=(uint64_t)NULL);
@@ -120,7 +121,7 @@ void MemoryManager::AccDiscard(AcceleratorViewEntry &AccCache)
     DeviceBytes   -=AccCache.bytes;
     LRUremove(AccCache);
     AccCache.AccPtr=(uint64_t) NULL;
-    dprintf("MemoryManager: Free(%lx) LRU %ld Total %ld",(uint64_t)AccCache.AccPtr,DeviceLRUBytes,DeviceBytes);  
+    dprintf("MemoryManager: Free(%lx) LRU %ld Total %ld\n",(uint64_t)AccCache.AccPtr,DeviceLRUBytes,DeviceBytes);  
   }
   uint64_t CpuPtr = AccCache.CpuPtr;
   EntryErase(CpuPtr);
@@ -140,7 +141,7 @@ void MemoryManager::Evict(AcceleratorViewEntry &AccCache)
   ///////////////////////////////////////////////////////////////////////////
   assert(AccCache.state!=Empty);
   
-  mprintf("MemoryManager: Evict CpuPtr %lx AccPtr %lx cpuLock %ld accLock %ld",
+  mprintf("MemoryManager: Evict CpuPtr %lx AccPtr %lx cpuLock %ld accLock %ld\n",
 	  (uint64_t)AccCache.CpuPtr,(uint64_t)AccCache.AccPtr,
 	  (uint64_t)AccCache.cpuLock,(uint64_t)AccCache.accLock); 
   if (AccCache.accLock!=0) return;
@@ -154,7 +155,7 @@ void MemoryManager::Evict(AcceleratorViewEntry &AccCache)
     AccCache.AccPtr=(uint64_t)NULL;
     AccCache.state=CpuDirty; // CPU primary now
     DeviceBytes   -=AccCache.bytes;
-    dprintf("MemoryManager: Free(AccPtr %lx) footprint now %ld ",(uint64_t)AccCache.AccPtr,DeviceBytes);  
+    dprintf("MemoryManager: Free(AccPtr %lx) footprint now %ld \n",(uint64_t)AccCache.AccPtr,DeviceBytes);  
   }
   //  uint64_t CpuPtr = AccCache.CpuPtr;
   DeviceEvictions++;
@@ -168,7 +169,7 @@ void MemoryManager::Flush(AcceleratorViewEntry &AccCache)
   assert(AccCache.AccPtr!=(uint64_t)NULL);
   assert(AccCache.CpuPtr!=(uint64_t)NULL);
   acceleratorCopyFromDevice((void *)AccCache.AccPtr,(void *)AccCache.CpuPtr,AccCache.bytes);
-  mprintf("MemoryManager: acceleratorCopyFromDevice Flush size %ld AccPtr %lx -> CpuPtr %lx",(uint64_t)AccCache.bytes,(uint64_t)AccCache.AccPtr,(uint64_t)AccCache.CpuPtr); fflush(stdout);
+  mprintf("MemoryManager: acceleratorCopyFromDevice Flush AccPtr %lx -> CpuPtr %lx\n",(uint64_t)AccCache.AccPtr,(uint64_t)AccCache.CpuPtr); fflush(stdout);
   DeviceToHostBytes+=AccCache.bytes;
   DeviceToHostXfer++;
   AccCache.state=Consistent;
@@ -183,9 +184,7 @@ void MemoryManager::Clone(AcceleratorViewEntry &AccCache)
     AccCache.AccPtr=(uint64_t)AcceleratorAllocate(AccCache.bytes);
     DeviceBytes+=AccCache.bytes;
   }
-  mprintf("MemoryManager: acceleratorCopyToDevice   Clone size %ld AccPtr %lx <- CpuPtr %lx",
-	  (uint64_t)AccCache.bytes,
-	  (uint64_t)AccCache.AccPtr,(uint64_t)AccCache.CpuPtr); fflush(stdout);
+  mprintf("MemoryManager: acceleratorCopyToDevice   Clone AccPtr %lx <- CpuPtr %lx\n",(uint64_t)AccCache.AccPtr,(uint64_t)AccCache.CpuPtr); fflush(stdout);
   acceleratorCopyToDevice((void *)AccCache.CpuPtr,(void *)AccCache.AccPtr,AccCache.bytes);
   HostToDeviceBytes+=AccCache.bytes;
   HostToDeviceXfer++;
@@ -211,7 +210,7 @@ void MemoryManager::CpuDiscard(AcceleratorViewEntry &AccCache)
 void MemoryManager::ViewClose(void* Ptr,ViewMode mode)
 {
   if( (mode==AcceleratorRead)||(mode==AcceleratorWrite)||(mode==AcceleratorWriteDiscard) ){
-    dprintf("AcceleratorViewClose %lx",(uint64_t)Ptr);
+    dprintf("AcceleratorViewClose %lx\n",(uint64_t)Ptr);
     AcceleratorViewClose((uint64_t)Ptr);
   } else if( (mode==CpuRead)||(mode==CpuWrite)){
     CpuViewClose((uint64_t)Ptr);
@@ -223,7 +222,7 @@ void *MemoryManager::ViewOpen(void* _CpuPtr,size_t bytes,ViewMode mode,ViewAdvis
 {
   uint64_t CpuPtr = (uint64_t)_CpuPtr;
   if( (mode==AcceleratorRead)||(mode==AcceleratorWrite)||(mode==AcceleratorWriteDiscard) ){
-    dprintf("AcceleratorViewOpen %lx",(uint64_t)CpuPtr);
+    dprintf("AcceleratorViewOpen %lx\n",(uint64_t)CpuPtr);
     return (void *) AcceleratorViewOpen(CpuPtr,bytes,mode,hint);
   } else if( (mode==CpuRead)||(mode==CpuWrite)){
     return (void *)CpuViewOpen(CpuPtr,bytes,mode,hint);
@@ -234,9 +233,6 @@ void *MemoryManager::ViewOpen(void* _CpuPtr,size_t bytes,ViewMode mode,ViewAdvis
 }
 void  MemoryManager::EvictVictims(uint64_t bytes)
 {
-  if(bytes>=DeviceMaxBytes) {
-    printf("EvictVictims bytes %ld DeviceMaxBytes %ld\n",bytes,DeviceMaxBytes);
-  }
   assert(bytes<DeviceMaxBytes);
   while(bytes+DeviceLRUBytes > DeviceMaxBytes){
     if ( DeviceLRUBytes > 0){
@@ -269,7 +265,7 @@ uint64_t MemoryManager::AcceleratorViewOpen(uint64_t CpuPtr,size_t bytes,ViewMod
   assert(AccCache.cpuLock==0);  // Programming error
 
   if(AccCache.state!=Empty) {
-    dprintf("ViewOpen found entry %lx %lx : sizes %ld %ld accLock %ld",
+    dprintf("ViewOpen found entry %lx %lx : %ld %ld accLock %ld\n",
 		    (uint64_t)AccCache.CpuPtr,
 		    (uint64_t)CpuPtr,
 		    (uint64_t)AccCache.bytes,
@@ -309,7 +305,7 @@ uint64_t MemoryManager::AcceleratorViewOpen(uint64_t CpuPtr,size_t bytes,ViewMod
       AccCache.state  = Consistent; // Empty + AccRead => Consistent
     }
     AccCache.accLock= 1;
-    dprintf("Copied Empty entry into device accLock= %d",AccCache.accLock);
+    dprintf("Copied Empty entry into device accLock= %d\n",AccCache.accLock);
   } else if(AccCache.state==CpuDirty ){
     if(mode==AcceleratorWriteDiscard) {
       CpuDiscard(AccCache);
@@ -322,21 +318,21 @@ uint64_t MemoryManager::AcceleratorViewOpen(uint64_t CpuPtr,size_t bytes,ViewMod
       AccCache.state  = Consistent; // CpuDirty + AccRead => Consistent
     }
     AccCache.accLock++;
-    dprintf("CpuDirty entry into device ++accLock= %d",AccCache.accLock);
+    dprintf("CpuDirty entry into device ++accLock= %d\n",AccCache.accLock);
   } else if(AccCache.state==Consistent) {
     if((mode==AcceleratorWrite)||(mode==AcceleratorWriteDiscard))
       AccCache.state  = AccDirty;   // Consistent + AcceleratorWrite=> AccDirty
     else
       AccCache.state  = Consistent; // Consistent + AccRead => Consistent
     AccCache.accLock++;
-    dprintf("Consistent entry into device ++accLock= %d",AccCache.accLock);
+    dprintf("Consistent entry into device ++accLock= %d\n",AccCache.accLock);
   } else if(AccCache.state==AccDirty) {
     if((mode==AcceleratorWrite)||(mode==AcceleratorWriteDiscard))
       AccCache.state  = AccDirty; // AccDirty + AcceleratorWrite=> AccDirty
     else
       AccCache.state  = AccDirty; // AccDirty + AccRead => AccDirty
     AccCache.accLock++;
-    dprintf("AccDirty entry ++accLock= %d",AccCache.accLock);
+    dprintf("AccDirty entry ++accLock= %d\n",AccCache.accLock);
   } else {
     assert(0);
   }
@@ -345,7 +341,7 @@ uint64_t MemoryManager::AcceleratorViewOpen(uint64_t CpuPtr,size_t bytes,ViewMod
   // If view is opened on device must remove from LRU
   if(AccCache.LRU_valid==1){
     // must possibly remove from LRU as now locked on GPU
-    dprintf("AccCache entry removed from LRU ");
+    dprintf("AccCache entry removed from LRU \n");
     LRUremove(AccCache);
   }
 
@@ -368,10 +364,10 @@ void MemoryManager::AcceleratorViewClose(uint64_t CpuPtr)
   AccCache.accLock--;
   // Move to LRU queue if not locked and close on device
   if(AccCache.accLock==0) {
-    dprintf("AccleratorViewClose %lx AccLock decremented to %ld move to LRU queue",(uint64_t)CpuPtr,(uint64_t)AccCache.accLock);
+    dprintf("AccleratorViewClose %lx AccLock decremented to %ld move to LRU queue\n",(uint64_t)CpuPtr,(uint64_t)AccCache.accLock);
     LRUinsert(AccCache);
   } else {
-    dprintf("AccleratorViewClose %lx AccLock decremented to %ld",(uint64_t)CpuPtr,(uint64_t)AccCache.accLock);
+    dprintf("AccleratorViewClose %lx AccLock decremented to %ld\n",(uint64_t)CpuPtr,(uint64_t)AccCache.accLock);
   }
 }
 void MemoryManager::CpuViewClose(uint64_t CpuPtr)

Grid/allocator/MemoryStats.cc

@@ -15,10 +15,10 @@ void check_huge_pages(void *Buf,uint64_t BYTES)
   uint64_t virt_pfn = (uint64_t)Buf / page_size;
   off_t offset = sizeof(uint64_t) * virt_pfn;
   uint64_t npages = (BYTES + page_size-1) / page_size;
-  std::vector<uint64_t> pagedata(npages);
+  uint64_t pagedata[npages];
   uint64_t ret = lseek(fd, offset, SEEK_SET);
   assert(ret == offset);
-  ret = ::read(fd, &pagedata[0], sizeof(uint64_t)*npages);
+  ret = ::read(fd, pagedata, sizeof(uint64_t)*npages);
   assert(ret == sizeof(uint64_t) * npages);
   int nhugepages = npages / 512;
   int n4ktotal, nnothuge;

Grid/cartesian/Cartesian_base.h

@@ -82,7 +82,6 @@ public:
   bool _isCheckerBoarded; 
   int        LocallyPeriodic;
   Coordinate _checker_dim_mask;
-  int              _checker_dim;
 
 public:
 
@@ -90,8 +89,9 @@ public:
   // Checkerboarding interface is virtual and overridden by 
   // GridCartesian / GridRedBlackCartesian
   ////////////////////////////////////////////////////////////////
-  virtual int CheckerBoarded(int dim) =0;
+  virtual int CheckerBoarded(int dim)=0;
   virtual int CheckerBoard(const Coordinate &site)=0;
+  virtual int CheckerDim(void){ return 0; };
   virtual int CheckerBoardDestination(int source_cb,int shift,int dim)=0;
   virtual int CheckerBoardShift(int source_cb,int dim,int shift,int osite)=0;
   virtual int CheckerBoardShiftForCB(int source_cb,int dim,int shift,int cb)=0;

Grid/cartesian/Cartesian_full.h

@@ -38,7 +38,7 @@ class GridCartesian: public GridBase {
 
 public:
   int dummy;
-  //  Coordinate _checker_dim_mask;
+  Coordinate _checker_dim_mask;
   virtual int  CheckerBoardFromOindexTable (int Oindex) {
     return 0;
   }
@@ -46,7 +46,7 @@ public:
   {
     return 0;
   }
-  virtual int CheckerBoarded(int dim) {
+  virtual int CheckerBoarded(int dim){
     return 0;
   }
   virtual int CheckerBoard(const Coordinate &site){
@@ -106,7 +106,6 @@ public:
     _rdimensions.resize(_ndimension);
     _simd_layout.resize(_ndimension);
     _checker_dim_mask.resize(_ndimension);;
-    _checker_dim = -1;
     _lstart.resize(_ndimension);
     _lend.resize(_ndimension);
 

Grid/cartesian/Cartesian_red_black.h

@@ -57,10 +57,10 @@ class GridRedBlackCartesian : public GridBase
 {
 public:
   //  Coordinate _checker_dim_mask;
-  //  int              _checker_dim;
+  int              _checker_dim;
   std::vector<int> _checker_board;
 
-  virtual int isCheckerBoarded(void) const { return 1; };
+  virtual int CheckerDim(void){ return _checker_dim; };
   virtual int CheckerBoarded(int dim){
     if( dim==_checker_dim) return 1;
     else return 0;
@@ -148,7 +148,7 @@ public:
   {
     Init(base->_fdimensions,base->_simd_layout,base->_processors,checker_dim_mask,checker_dim)  ;
   }
-  
+
   virtual ~GridRedBlackCartesian() = default;
 
   void Init(const Coordinate &dimensions,

Grid/communicator/Communicator_base.cc

@@ -57,29 +57,18 @@ int                      CartesianCommunicator::ProcessorCount(void)    { return
 // very VERY rarely (Log, serial RNG) we need world without a grid
 ////////////////////////////////////////////////////////////////////////////////
 
-#ifdef USE_GRID_REDUCTION
-void CartesianCommunicator::GlobalSum(ComplexF &c)
-{
-  GlobalSumP2P(c);
-}
-void CartesianCommunicator::GlobalSum(ComplexD &c)
-{
-  GlobalSumP2P(c);
-}
-#else
 void CartesianCommunicator::GlobalSum(ComplexF &c)
 {
   GlobalSumVector((float *)&c,2);
 }
-void CartesianCommunicator::GlobalSum(ComplexD &c)
-{
-  GlobalSumVector((double *)&c,2);
-}
-#endif
 void CartesianCommunicator::GlobalSumVector(ComplexF *c,int N)
 {
   GlobalSumVector((float *)c,2*N);
 }
+void CartesianCommunicator::GlobalSum(ComplexD &c)
+{
+  GlobalSumVector((double *)&c,2);
+}
 void CartesianCommunicator::GlobalSumVector(ComplexD *c,int N)
 {
   GlobalSumVector((double *)c,2*N);

Grid/communicator/Communicator_base.h

@@ -33,8 +33,6 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
 ///////////////////////////////////
 #include <Grid/communicator/SharedMemory.h>
 
-#define NVLINK_GET
-
 NAMESPACE_BEGIN(Grid);
 
 extern bool Stencil_force_mpi ;
@@ -129,35 +127,7 @@ public:
   void GlobalSumVector(ComplexD *c,int N);
   void GlobalXOR(uint32_t &);
   void GlobalXOR(uint64_t &);
-
-  template<class obj> void GlobalSumP2P(obj &o)
-  {
-    std::vector<obj> column;
-    obj accum = o;
-    int source,dest;
-    for(int d=0;d<_ndimension;d++){
-      column.resize(_processors[d]);
-      column[0] = accum;
-      std::vector<MpiCommsRequest_t> list;
-      for(int p=1;p<_processors[d];p++){
-	ShiftedRanks(d,p,source,dest);
-	SendToRecvFromBegin(list,
-			    &column[0],
-			    dest,
-			    &column[p],
-			    source,
-			    sizeof(obj),d*100+p);
-
-      }
-      CommsComplete(list);
-      for(int p=1;p<_processors[d];p++){
-	accum = accum + column[p];
-      }
-    }
-    Broadcast(0,accum);
-    o=accum;
-  }
-
+  
   template<class obj> void GlobalSum(obj &o){
     typedef typename obj::scalar_type scalar_type;
     int words = sizeof(obj)/sizeof(scalar_type);
@@ -168,8 +138,8 @@ public:
   ////////////////////////////////////////////////////////////
   // Face exchange, buffer swap in translational invariant way
   ////////////////////////////////////////////////////////////
-  void CommsComplete(std::vector<MpiCommsRequest_t> &list);
-  void SendToRecvFromBegin(std::vector<MpiCommsRequest_t> &list,
+  void CommsComplete(std::vector<CommsRequest_t> &list);
+  void SendToRecvFromBegin(std::vector<CommsRequest_t> &list,
 			   void *xmit,
 			   int dest,
 			   void *recv,
@@ -188,17 +158,6 @@ public:
 			       int recv_from_rank,int do_recv,
 			       int bytes,int dir);
 
-  double StencilSendToRecvFromPrepare(std::vector<CommsRequest_t> &list,
-				      void *xmit,
-				      int xmit_to_rank,int do_xmit,
-				      void *recv,
-				      int recv_from_rank,int do_recv,
-				      int xbytes,int rbytes,int dir);
-
-  // Could do a PollHtoD and have a CommsMerge dependence
-  void StencilSendToRecvFromPollDtoH (std::vector<CommsRequest_t> &list);
-  void StencilSendToRecvFromPollIRecv(std::vector<CommsRequest_t> &list);
-
   double StencilSendToRecvFromBegin(std::vector<CommsRequest_t> &list,
 				    void *xmit,
 				    int xmit_to_rank,int do_xmit,

Grid/communicator/Communicator_mpi3.cc

@@ -30,7 +30,6 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
 
 NAMESPACE_BEGIN(Grid);
 
-
 Grid_MPI_Comm       CartesianCommunicator::communicator_world;
 
 ////////////////////////////////////////////
@@ -258,25 +257,6 @@ CartesianCommunicator::~CartesianCommunicator()
     }
   }
 }
-#ifdef USE_GRID_REDUCTION
-void CartesianCommunicator::GlobalSum(float &f){
-  CartesianCommunicator::GlobalSumP2P(f);
-}
-void CartesianCommunicator::GlobalSum(double &d)
-{
-  CartesianCommunicator::GlobalSumP2P(d);
-}
-#else
-void CartesianCommunicator::GlobalSum(float &f){
-  int ierr=MPI_Allreduce(MPI_IN_PLACE,&f,1,MPI_FLOAT,MPI_SUM,communicator);
-  assert(ierr==0);
-}
-void CartesianCommunicator::GlobalSum(double &d)
-{
-  int ierr = MPI_Allreduce(MPI_IN_PLACE,&d,1,MPI_DOUBLE,MPI_SUM,communicator);
-  assert(ierr==0);
-}
-#endif
 void CartesianCommunicator::GlobalSum(uint32_t &u){
   int ierr=MPI_Allreduce(MPI_IN_PLACE,&u,1,MPI_UINT32_T,MPI_SUM,communicator);
   assert(ierr==0);
@@ -307,18 +287,27 @@ void CartesianCommunicator::GlobalMax(double &d)
   int ierr = MPI_Allreduce(MPI_IN_PLACE,&d,1,MPI_DOUBLE,MPI_MAX,communicator);
   assert(ierr==0);
 }
+void CartesianCommunicator::GlobalSum(float &f){
+  int ierr=MPI_Allreduce(MPI_IN_PLACE,&f,1,MPI_FLOAT,MPI_SUM,communicator);
+  assert(ierr==0);
+}
 void CartesianCommunicator::GlobalSumVector(float *f,int N)
 {
   int ierr=MPI_Allreduce(MPI_IN_PLACE,f,N,MPI_FLOAT,MPI_SUM,communicator);
   assert(ierr==0);
 }
+void CartesianCommunicator::GlobalSum(double &d)
+{
+  int ierr = MPI_Allreduce(MPI_IN_PLACE,&d,1,MPI_DOUBLE,MPI_SUM,communicator);
+  assert(ierr==0);
+}
 void CartesianCommunicator::GlobalSumVector(double *d,int N)
 {
   int ierr = MPI_Allreduce(MPI_IN_PLACE,d,N,MPI_DOUBLE,MPI_SUM,communicator);
   assert(ierr==0);
 }
 
-void CartesianCommunicator::SendToRecvFromBegin(std::vector<MpiCommsRequest_t> &list,
+void CartesianCommunicator::SendToRecvFromBegin(std::vector<CommsRequest_t> &list,
 						void *xmit,
 						int dest,
 						void *recv,
@@ -343,7 +332,7 @@ void CartesianCommunicator::SendToRecvFromBegin(std::vector<MpiCommsRequest_t> &
   assert(ierr==0);
   list.push_back(xrq);
 }
-void CartesianCommunicator::CommsComplete(std::vector<MpiCommsRequest_t> &list)
+void CartesianCommunicator::CommsComplete(std::vector<CommsRequest_t> &list)
 {
   int nreq=list.size();
 
@@ -362,7 +351,9 @@ void CartesianCommunicator::SendToRecvFrom(void *xmit,
 					   int from,
 					   int bytes)
 {
-  std::vector<MpiCommsRequest_t> reqs(0);
+  std::vector<CommsRequest_t> reqs(0);
+  unsigned long  xcrc = crc32(0L, Z_NULL, 0);
+  unsigned long  rcrc = crc32(0L, Z_NULL, 0);
 
   int myrank = _processor;
   int ierr;
@@ -378,6 +369,9 @@ void CartesianCommunicator::SendToRecvFrom(void *xmit,
 		    communicator,MPI_STATUS_IGNORE);
   assert(ierr==0);
 
+  //  xcrc = crc32(xcrc,(unsigned char *)xmit,bytes);
+  //  rcrc = crc32(rcrc,(unsigned char *)recv,bytes);
+  //  printf("proc %d SendToRecvFrom %d bytes xcrc %lx rcrc %lx\n",_processor,bytes,xcrc,rcrc); fflush
 }
 // Basic Halo comms primitive
 double CartesianCommunicator::StencilSendToRecvFrom( void *xmit,
@@ -387,25 +381,12 @@ double CartesianCommunicator::StencilSendToRecvFrom( void *xmit,
 						     int bytes,int dir)
 {
   std::vector<CommsRequest_t> list;
-  double offbytes = StencilSendToRecvFromPrepare(list,xmit,dest,dox,recv,from,dor,bytes,bytes,dir);
-  offbytes       += StencilSendToRecvFromBegin(list,xmit,dest,dox,recv,from,dor,bytes,bytes,dir);
+  double offbytes = StencilSendToRecvFromBegin(list,xmit,dest,dox,recv,from,dor,bytes,bytes,dir);
   StencilSendToRecvFromComplete(list,dir);
   return offbytes;
 }
 
-
-#ifdef ACCELERATOR_AWARE_MPI
-void CartesianCommunicator::StencilSendToRecvFromPollIRecv(std::vector<CommsRequest_t> &list) {};
-void CartesianCommunicator::StencilSendToRecvFromPollDtoH(std::vector<CommsRequest_t> &list) {};
-double CartesianCommunicator::StencilSendToRecvFromPrepare(std::vector<CommsRequest_t> &list,
-							   void *xmit,
-							   int dest,int dox,
-							   void *recv,
-							   int from,int dor,
-							   int xbytes,int rbytes,int dir)
-{
-  return 0.0; // Do nothing -- no preparation required
-}
+#undef NVLINK_GET // Define to use get instead of put DMA
 double CartesianCommunicator::StencilSendToRecvFromBegin(std::vector<CommsRequest_t> &list,
 							 void *xmit,
 							 int dest,int dox,
@@ -429,7 +410,7 @@ double CartesianCommunicator::StencilSendToRecvFromBegin(std::vector<CommsReques
   assert(gme  == ShmRank);
   double off_node_bytes=0.0;
   int tag;
-  
+
   if ( dor ) {
     if ( (gfrom ==MPI_UNDEFINED) || Stencil_force_mpi ) {
       tag= dir+from*32;
@@ -438,9 +419,15 @@ double CartesianCommunicator::StencilSendToRecvFromBegin(std::vector<CommsReques
       list.push_back(rrq);
       off_node_bytes+=rbytes;
     }
+#ifdef NVLINK_GET
+      void *shm = (void *) this->ShmBufferTranslate(from,xmit);
+      assert(shm!=NULL);
+      acceleratorCopyDeviceToDeviceAsynch(shm,recv,rbytes);
+#endif
   }
   
   if (dox) {
+    //  rcrc = crc32(rcrc,(unsigned char *)recv,bytes);
     if ( (gdest == MPI_UNDEFINED) || Stencil_force_mpi ) {
       tag= dir+_processor*32;
       ierr =MPI_Isend(xmit, xbytes, MPI_CHAR,dest,tag,communicator_halo[commdir],&xrq);
@@ -448,14 +435,17 @@ double CartesianCommunicator::StencilSendToRecvFromBegin(std::vector<CommsReques
       list.push_back(xrq);
       off_node_bytes+=xbytes;
     } else {
+#ifndef NVLINK_GET
       void *shm = (void *) this->ShmBufferTranslate(dest,recv);
       assert(shm!=NULL);
       acceleratorCopyDeviceToDeviceAsynch(xmit,shm,xbytes);
+#endif
+      
     }
   }
+
   return off_node_bytes;
 }
-
 void CartesianCommunicator::StencilSendToRecvFromComplete(std::vector<CommsRequest_t> &list,int dir)
 {
   int nreq=list.size();
@@ -463,326 +453,12 @@ void CartesianCommunicator::StencilSendToRecvFromComplete(std::vector<CommsReque
   acceleratorCopySynchronise();
 
   if (nreq==0) return;
+
   std::vector<MPI_Status> status(nreq);
   int ierr = MPI_Waitall(nreq,&list[0],&status[0]);
   assert(ierr==0);
   list.resize(0);
-  this->StencilBarrier(); 
 }
-
-#else /* NOT     ... ACCELERATOR_AWARE_MPI */
-///////////////////////////////////////////
-// Pipeline mode through host memory
-///////////////////////////////////////////
-  /*
-   * In prepare (phase 1):
-   * PHASE 1: (prepare)
-   * - post MPI receive buffers asynch
-   * - post device - host send buffer transfer asynch
-   * PHASE 2: (Begin)
-   * - complete all copies
-   * - post MPI send asynch
-   * - post device - device transfers
-   * PHASE 3: (Complete)
-   * - MPI_waitall
-   * - host-device transfers
-   *
-   *********************************
-   * NB could split this further:
-   *--------------------------------
-   * PHASE 1: (Prepare)
-   * - post MPI receive buffers asynch
-   * - post device - host send buffer transfer asynch
-   * PHASE 2: (BeginInterNode)
-   * - complete all copies 
-   * - post MPI send asynch
-   * PHASE 3: (BeginIntraNode)
-   * - post device - device transfers
-   * PHASE 4: (Complete)
-   * - MPI_waitall
-   * - host-device transfers asynch
-   * - (complete all copies) 
-   */
-double CartesianCommunicator::StencilSendToRecvFromPrepare(std::vector<CommsRequest_t> &list,
-							   void *xmit,
-							   int dest,int dox,
-							   void *recv,
-							   int from,int dor,
-							   int xbytes,int rbytes,int dir)
-{
-/*
- * Bring sequence from Stencil.h down to lower level.
- * Assume using XeLink is ok
- */  
-  int ncomm  =communicator_halo.size();
-  int commdir=dir%ncomm;
-
-  MPI_Request xrq;
-  MPI_Request rrq;
-
-  int ierr;
-  int gdest = ShmRanks[dest];
-  int gfrom = ShmRanks[from];
-  int gme   = ShmRanks[_processor];
-
-  assert(dest != _processor);
-  assert(from != _processor);
-  assert(gme  == ShmRank);
-  double off_node_bytes=0.0;
-  int tag;
-
-  void * host_recv = NULL;
-  void * host_xmit = NULL;
-
-  /*
-   * PHASE 1: (Prepare)
-   * - post MPI receive buffers asynch
-   * - post device - host send buffer transfer asynch
-   */
-  
-  if ( dor ) {
-    if ( (gfrom ==MPI_UNDEFINED) || Stencil_force_mpi ) {
-      tag= dir+from*32;
-      host_recv = this->HostBufferMalloc(rbytes);
-      ierr=MPI_Irecv(host_recv, rbytes, MPI_CHAR,from,tag,communicator_halo[commdir],&rrq);
-      assert(ierr==0);
-      CommsRequest_t srq;
-      srq.PacketType = InterNodeRecv;
-      srq.bytes      = rbytes;
-      srq.req        = rrq;
-      srq.host_buf   = host_recv;
-      srq.device_buf = recv;
-      list.push_back(srq);
-      off_node_bytes+=rbytes;
-    }
-  }
-  
-  if (dox) {
-    if ( (gdest == MPI_UNDEFINED) || Stencil_force_mpi ) {
-
-      tag= dir+_processor*32;
-
-      host_xmit = this->HostBufferMalloc(xbytes);
-      CommsRequest_t srq;
-
-      srq.ev = acceleratorCopyFromDeviceAsynch(xmit, host_xmit,xbytes); // Make this Asynch
-      
-      //      ierr =MPI_Isend(host_xmit, xbytes, MPI_CHAR,dest,tag,communicator_halo[commdir],&xrq);
-      //      assert(ierr==0);
-      //      off_node_bytes+=xbytes;
-
-      srq.PacketType = InterNodeXmit;
-      srq.bytes      = xbytes;
-      //      srq.req        = xrq;
-      srq.host_buf   = host_xmit;
-      srq.device_buf = xmit;
-      srq.tag        = tag;
-      srq.dest       = dest;
-      srq.commdir    = commdir;
-      list.push_back(srq);
-    }
-  }
-
-  return off_node_bytes;
-}
-/*
- * In the interest of better pipelining, poll for completion on each DtoH and 
- * start MPI_ISend in the meantime
- */
-void CartesianCommunicator::StencilSendToRecvFromPollIRecv(std::vector<CommsRequest_t> &list)
-{
-  int pending = 0;
-  do {
-
-    pending = 0;
-
-    for(int idx = 0; idx<list.size();idx++){
-
-      if ( list[idx].PacketType==InterNodeRecv ) {
-
-	int flag = 0;
-	MPI_Status status;
-	int ierr = MPI_Test(&list[idx].req,&flag,&status);
-	assert(ierr==0);
-
-	if ( flag ) {
-	  //	  std::cout << " PollIrecv "<<idx<<" flag "<<flag<<std::endl;
-	  acceleratorCopyToDeviceAsynch(list[idx].host_buf,list[idx].device_buf,list[idx].bytes);
-	  list[idx].PacketType=InterNodeReceiveHtoD;
-	} else {
-	  pending ++;
-	}
-      }
-    }
-    //    std::cout << " PollIrecv "<<pending<<" pending requests"<<std::endl;
-  } while ( pending );
-  
-}
-void CartesianCommunicator::StencilSendToRecvFromPollDtoH(std::vector<CommsRequest_t> &list)
-{
-  int pending = 0;
-  do {
-
-    pending = 0;
-
-    for(int idx = 0; idx<list.size();idx++){
-
-      if ( list[idx].PacketType==InterNodeXmit ) {
-
-	if ( acceleratorEventIsComplete(list[idx].ev) ) {
-
-	  void *host_xmit = list[idx].host_buf;
-	  uint32_t xbytes = list[idx].bytes;
-	  int dest        = list[idx].dest;
-	  int tag         = list[idx].tag;
-	  int commdir     = list[idx].commdir;
-	  ///////////////////
-	  // Send packet
-	  ///////////////////
-
-	  //	  std::cout << " DtoH is complete for index "<<idx<<" calling MPI_Isend "<<std::endl;
-	  
-	  MPI_Request xrq;
-	  int ierr =MPI_Isend(host_xmit, xbytes, MPI_CHAR,dest,tag,communicator_halo[commdir],&xrq);
-	  assert(ierr==0);
-
-	  list[idx].req        = xrq; // Update the MPI request in the list
-
-	  list[idx].PacketType=InterNodeXmitISend;
-
-	} else {
-	  // not done, so return to polling loop
-	  pending++;
-	}
-      }
-    }
-  } while (pending);
-}  
-
-double CartesianCommunicator::StencilSendToRecvFromBegin(std::vector<CommsRequest_t> &list,
-							 void *xmit,
-							 int dest,int dox,
-							 void *recv,
-							 int from,int dor,
-							 int xbytes,int rbytes,int dir)
-{
-  int ncomm  =communicator_halo.size();
-  int commdir=dir%ncomm;
-
-  MPI_Request xrq;
-  MPI_Request rrq;
-
-  int ierr;
-  int gdest = ShmRanks[dest];
-  int gfrom = ShmRanks[from];
-  int gme   = ShmRanks[_processor];
-
-  assert(dest != _processor);
-  assert(from != _processor);
-  assert(gme  == ShmRank);
-  double off_node_bytes=0.0;
-  int tag;
-
-  void * host_xmit = NULL;
-
-  ////////////////////////////////
-  // Receives already posted
-  // Copies already started
-  ////////////////////////////////
-  /*  
-   * PHASE 2: (Begin)
-   * - complete all copies
-   * - post MPI send asynch
-   */
-#ifdef NVLINK_GET
-  if ( dor ) {
-
-    if ( ! ( (gfrom ==MPI_UNDEFINED) || Stencil_force_mpi ) ) {
-      // Intranode
-      void *shm = (void *) this->ShmBufferTranslate(from,xmit);
-      assert(shm!=NULL);
-
-      CommsRequest_t srq;
-
-      srq.ev = acceleratorCopyDeviceToDeviceAsynch(shm,recv,rbytes);
-
-      srq.PacketType = IntraNodeRecv;
-      srq.bytes      = xbytes;
-      //      srq.req        = xrq;
-      srq.host_buf   = NULL;
-      srq.device_buf = xmit;
-      srq.tag        = -1;
-      srq.dest       = dest;
-      srq.commdir    = dir;
-      list.push_back(srq);
-    }
-  }  
-#else
-  if (dox) {
-
-    if ( !( (gdest == MPI_UNDEFINED) || Stencil_force_mpi ) ) {
-      // Intranode
-      void *shm = (void *) this->ShmBufferTranslate(dest,recv);
-      assert(shm!=NULL);
-
-      CommsRequest_t srq;
-      
-      srq.ev = acceleratorCopyDeviceToDeviceAsynch(xmit,shm,xbytes);
-
-      srq.PacketType = IntraNodeXmit;
-      srq.bytes      = xbytes;
-      //      srq.req        = xrq;
-      srq.host_buf   = NULL;
-      srq.device_buf = xmit;
-      srq.tag        = -1;
-      srq.dest       = dest;
-      srq.commdir    = dir;
-      list.push_back(srq);
-      
-    }
-  }
-#endif
-  return off_node_bytes;
-}
-void CartesianCommunicator::StencilSendToRecvFromComplete(std::vector<CommsRequest_t> &list,int dir)
-{
-  acceleratorCopySynchronise(); // Complete all pending copy transfers D2D
-
-  std::vector<MPI_Status> status;
-  std::vector<MPI_Request> MpiRequests;
-    
-  for(int r=0;r<list.size();r++){
-    // Must check each Send buf is clear to reuse
-    if ( list[r].PacketType == InterNodeXmitISend ) MpiRequests.push_back(list[r].req);
-    //    if ( list[r].PacketType == InterNodeRecv ) MpiRequests.push_back(list[r].req); // Already "Test" passed
-  }
-
-  int nreq=MpiRequests.size();
-
-  if (nreq>0) {
-    status.resize(MpiRequests.size());
-    int ierr = MPI_Waitall(MpiRequests.size(),&MpiRequests[0],&status[0]); // Sends are guaranteed in order. No harm in not completing.
-    assert(ierr==0);
-  }
-  
-  //  for(int r=0;r<nreq;r++){
-  //    if ( list[r].PacketType==InterNodeRecv ) {
-  //      acceleratorCopyToDeviceAsynch(list[r].host_buf,list[r].device_buf,list[r].bytes);
-  //    }
-  //  }
-  
-  
-  list.resize(0);               // Delete the list
-  this->HostBufferFreeAll();    // Clean up the buffer allocs
-#ifndef NVLINK_GET
-  this->StencilBarrier(); // if PUT must check our nbrs have filled our receive buffers.
-#endif   
-}
-#endif
-////////////////////////////////////////////
-// END PIPELINE MODE / NO CUDA AWARE MPI
-////////////////////////////////////////////
-
 void CartesianCommunicator::StencilBarrier(void)
 {
   MPI_Barrier  (ShmComm);

Grid/communicator/Communicator_none.cc

@@ -91,7 +91,7 @@ void CartesianCommunicator::SendToRecvFrom(void *xmit,
 {
   assert(0);
 }
-void CartesianCommunicator::CommsComplete(std::vector<CommsRequest_t> &list){ assert(list.size()==0);}
+void CartesianCommunicator::CommsComplete(std::vector<CommsRequest_t> &list){ assert(0);}
 void CartesianCommunicator::SendToRecvFromBegin(std::vector<CommsRequest_t> &list,
 						void *xmit,
 						int dest,
@@ -132,17 +132,6 @@ double CartesianCommunicator::StencilSendToRecvFrom( void *xmit,
 {
   return 2.0*bytes;
 }
-void CartesianCommunicator::StencilSendToRecvFromPollIRecv(std::vector<CommsRequest_t> &list) {};
-void CartesianCommunicator::StencilSendToRecvFromPollDtoH(std::vector<CommsRequest_t> &list) {};
-double CartesianCommunicator::StencilSendToRecvFromPrepare(std::vector<CommsRequest_t> &list,
-							   void *xmit,
-							   int xmit_to_rank,int dox,
-							   void *recv,
-							   int recv_from_rank,int dor,
-							   int xbytes,int rbytes, int dir)
-{
-  return 0.0;
-}
 double CartesianCommunicator::StencilSendToRecvFromBegin(std::vector<CommsRequest_t> &list,
 							 void *xmit,
 							 int xmit_to_rank,int dox,

Grid/communicator/SharedMemory.h

@@ -46,40 +46,8 @@ NAMESPACE_BEGIN(Grid);
 
 #if defined (GRID_COMMS_MPI3) 
 typedef MPI_Comm    Grid_MPI_Comm;
-typedef MPI_Request MpiCommsRequest_t;
-#ifdef ACCELERATOR_AWARE_MPI
 typedef MPI_Request CommsRequest_t;
-#else
-/*
- * Enable state transitions as each packet flows.
- */
-enum PacketType_t {
-  FaceGather,
-  InterNodeXmit,
-  InterNodeRecv,
-  IntraNodeXmit,
-  IntraNodeRecv,
-  InterNodeXmitISend,
-  InterNodeReceiveHtoD
-};
-/*
- *Package arguments needed for various actions along packet flow
- */
-typedef struct {
-  PacketType_t PacketType;
-  void *host_buf;
-  void *device_buf;
-  int dest;
-  int tag;
-  int commdir;
-  unsigned long bytes;
-  acceleratorEvent_t ev;
-  MpiCommsRequest_t req;
-} CommsRequest_t;
-#endif
-
 #else 
-typedef int MpiCommsRequest_t;
 typedef int CommsRequest_t;
 typedef int Grid_MPI_Comm;
 #endif

Grid/communicator/SharedMemoryMPI.cc

@@ -42,11 +42,6 @@ Author: Christoph Lehner <christoph@lhnr.de>
 #ifdef ACCELERATOR_AWARE_MPI
 #define GRID_SYCL_LEVEL_ZERO_IPC
 #define SHM_SOCKETS
-#else
-#ifdef HAVE_NUMAIF_H
-  #warning " Using NUMAIF "
-#include <numaif.h>
-#endif 
 #endif 
 #include <syscall.h>
 #endif
@@ -542,38 +537,7 @@ void GlobalSharedMemory::SharedMemoryAllocate(uint64_t bytes, int flags)
   // Each MPI rank should allocate our own buffer
   ///////////////////////////////////////////////////////////////////////////////////////////////////////////
 #ifndef ACCELERATOR_AWARE_MPI
-  printf("Host buffer allocate for GPU non-aware MPI\n");
-#if 0
-  HostCommBuf= acceleratorAllocHost(bytes);
-#else 
-  HostCommBuf= malloc(bytes); /// CHANGE THIS TO malloc_host
-#ifdef HAVE_NUMAIF_H
-  #warning "Moving host buffers to specific NUMA domain"
-  int numa;
-  char *numa_name=(char *)getenv("MPI_BUF_NUMA");
-  if(numa_name) {
-    unsigned long page_size = sysconf(_SC_PAGESIZE);
-    numa = atoi(numa_name);
-    unsigned long page_count = bytes/page_size;
-    std::vector<void *> pages(page_count);
-    std::vector<int>    nodes(page_count,numa);
-    std::vector<int>    status(page_count,-1);
-    for(unsigned long p=0;p<page_count;p++){
-      pages[p] =(void *) ((uint64_t) HostCommBuf + p*page_size);
-    }
-    int ret = move_pages(0,
-			 page_count,
-			 &pages[0],
-			 &nodes[0],
-			 &status[0],
-			 MPOL_MF_MOVE);
-    printf("Host buffer move to numa domain %d : move_pages returned %d\n",numa,ret);
-    if (ret) perror(" move_pages failed for reason:");
-  }
-#endif  
-  acceleratorPin(HostCommBuf,bytes);
-#endif  
-
+  HostCommBuf= malloc(bytes);
 #endif  
   ShmCommBuf = acceleratorAllocDevice(bytes);
   if (ShmCommBuf == (void *)NULL ) {
@@ -605,8 +569,8 @@ void GlobalSharedMemory::SharedMemoryAllocate(uint64_t bytes, int flags)
 #ifdef GRID_SYCL_LEVEL_ZERO_IPC
     typedef struct { int fd; pid_t pid ; ze_ipc_mem_handle_t ze; } clone_mem_t;
 
-    auto zeDevice    = sycl::get_native<sycl::backend::ext_oneapi_level_zero>(theGridAccelerator->get_device());
-    auto zeContext   = sycl::get_native<sycl::backend::ext_oneapi_level_zero>(theGridAccelerator->get_context());
+    auto zeDevice    = cl::sycl::get_native<cl::sycl::backend::ext_oneapi_level_zero>(theGridAccelerator->get_device());
+    auto zeContext   = cl::sycl::get_native<cl::sycl::backend::ext_oneapi_level_zero>(theGridAccelerator->get_context());
       
     ze_ipc_mem_handle_t ihandle;
     clone_mem_t handle;

Grid/cshift/Cshift.h

@@ -51,6 +51,7 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
 #endif 
 
 NAMESPACE_BEGIN(Grid);
+
 template<class Expression,typename std::enable_if<is_lattice_expr<Expression>::value,void>::type * = nullptr> 
 auto Cshift(const Expression &expr,int dim,int shift)  -> decltype(closure(expr)) 
 {

Grid/cshift/Cshift_common.h

@@ -30,11 +30,12 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
 NAMESPACE_BEGIN(Grid);
 
 extern std::vector<std::pair<int,int> > Cshift_table; 
-extern deviceVector<std::pair<int,int> > Cshift_table_device; 
+extern commVector<std::pair<int,int> > Cshift_table_device; 
 
 inline std::pair<int,int> *MapCshiftTable(void)
 {
   // GPU version
+#ifdef ACCELERATOR_CSHIFT    
   uint64_t sz=Cshift_table.size();
   if (Cshift_table_device.size()!=sz )    {
     Cshift_table_device.resize(sz);
@@ -44,13 +45,16 @@ inline std::pair<int,int> *MapCshiftTable(void)
 			  sizeof(Cshift_table[0])*sz);
 
   return &Cshift_table_device[0];
+#else 
+  return &Cshift_table[0];
+#endif
   // CPU version use identify map
 }
 ///////////////////////////////////////////////////////////////////
 // Gather for when there is no need to SIMD split 
 ///////////////////////////////////////////////////////////////////
 template<class vobj> void 
-Gather_plane_simple (const Lattice<vobj> &rhs,deviceVector<vobj> &buffer,int dimension,int plane,int cbmask, int off=0)
+Gather_plane_simple (const Lattice<vobj> &rhs,cshiftVector<vobj> &buffer,int dimension,int plane,int cbmask, int off=0)
 {
   int rd = rhs.Grid()->_rdimensions[dimension];
 
@@ -90,10 +94,17 @@ Gather_plane_simple (const Lattice<vobj> &rhs,deviceVector<vobj> &buffer,int dim
   {
     auto buffer_p = & buffer[0];
     auto table = MapCshiftTable();
+#ifdef ACCELERATOR_CSHIFT
     autoView(rhs_v , rhs, AcceleratorRead);
     accelerator_for(i,ent,vobj::Nsimd(),{
 	coalescedWrite(buffer_p[table[i].first],coalescedRead(rhs_v[table[i].second]));
     });
+#else
+    autoView(rhs_v , rhs, CpuRead);
+    thread_for(i,ent,{
+      buffer_p[table[i].first]=rhs_v[table[i].second];
+    });
+#endif
   }
 }
 
@@ -118,6 +129,7 @@ Gather_plane_extract(const Lattice<vobj> &rhs,
   int n1=rhs.Grid()->_slice_stride[dimension];
 
   if ( cbmask ==0x3){
+#ifdef ACCELERATOR_CSHIFT
     autoView(rhs_v , rhs, AcceleratorRead);
     accelerator_for(nn,e1*e2,1,{
 	int n = nn%e1;
@@ -128,10 +140,21 @@ Gather_plane_extract(const Lattice<vobj> &rhs,
 	vobj temp =rhs_v[so+o+b];
 	extract<vobj>(temp,pointers,offset);
       });
+#else
+    autoView(rhs_v , rhs, CpuRead);
+    thread_for2d(n,e1,b,e2,{
+	int o      =   n*n1;
+	int offset = b+n*e2;
+	
+	vobj temp =rhs_v[so+o+b];
+	extract<vobj>(temp,pointers,offset);
+      });
+#endif
   } else { 
     Coordinate rdim=rhs.Grid()->_rdimensions;
     Coordinate cdm =rhs.Grid()->_checker_dim_mask;
     std::cout << " Dense packed buffer WARNING " <<std::endl; // Does this get called twice once for each cb?
+#ifdef ACCELERATOR_CSHIFT    
     autoView(rhs_v , rhs, AcceleratorRead);
     accelerator_for(nn,e1*e2,1,{
 	int n = nn%e1;
@@ -152,13 +175,33 @@ Gather_plane_extract(const Lattice<vobj> &rhs,
 	  extract<vobj>(temp,pointers,offset);
 	}
       });
+#else
+    autoView(rhs_v , rhs, CpuRead);
+    thread_for2d(n,e1,b,e2,{
+
+	Coordinate coor;
+
+	int o=n*n1;
+	int oindex = o+b;
+
+       	int cb = RedBlackCheckerBoardFromOindex(oindex, rdim, cdm);
+
+	int ocb=1<<cb;
+	int offset = b+n*e2;
+
+	if ( ocb & cbmask ) {
+	  vobj temp =rhs_v[so+o+b];
+	  extract<vobj>(temp,pointers,offset);
+	}
+      });
+#endif
   }
 }
 
 //////////////////////////////////////////////////////
 // Scatter for when there is no need to SIMD split
 //////////////////////////////////////////////////////
-template<class vobj> void Scatter_plane_simple (Lattice<vobj> &rhs,deviceVector<vobj> &buffer, int dimension,int plane,int cbmask)
+template<class vobj> void Scatter_plane_simple (Lattice<vobj> &rhs,cshiftVector<vobj> &buffer, int dimension,int plane,int cbmask)
 {
   int rd = rhs.Grid()->_rdimensions[dimension];
 
@@ -202,10 +245,17 @@ template<class vobj> void Scatter_plane_simple (Lattice<vobj> &rhs,deviceVector<
   {
     auto buffer_p = & buffer[0];
     auto table = MapCshiftTable();
+#ifdef ACCELERATOR_CSHIFT    
     autoView( rhs_v, rhs, AcceleratorWrite);
     accelerator_for(i,ent,vobj::Nsimd(),{
 	coalescedWrite(rhs_v[table[i].first],coalescedRead(buffer_p[table[i].second]));
     });
+#else
+    autoView( rhs_v, rhs, CpuWrite);
+    thread_for(i,ent,{
+      rhs_v[table[i].first]=buffer_p[table[i].second];
+    });
+#endif
   }
 }
 
@@ -228,6 +278,7 @@ template<class vobj> void Scatter_plane_merge(Lattice<vobj> &rhs,ExtractPointerA
   if(cbmask ==0x3 ) {
     int _slice_stride = rhs.Grid()->_slice_stride[dimension];
     int _slice_block = rhs.Grid()->_slice_block[dimension];
+#ifdef ACCELERATOR_CSHIFT    
     autoView( rhs_v , rhs, AcceleratorWrite);
     accelerator_for(nn,e1*e2,1,{
 	int n = nn%e1;
@@ -236,6 +287,14 @@ template<class vobj> void Scatter_plane_merge(Lattice<vobj> &rhs,ExtractPointerA
 	int offset = b+n*_slice_block;
 	merge(rhs_v[so+o+b],pointers,offset);
       });
+#else
+    autoView( rhs_v , rhs, CpuWrite);
+    thread_for2d(n,e1,b,e2,{
+	int o      = n*_slice_stride;
+	int offset = b+n*_slice_block;
+	merge(rhs_v[so+o+b],pointers,offset);
+    });
+#endif
   } else { 
 
     // Case of SIMD split AND checker dim cannot currently be hit, except in 
@@ -301,11 +360,19 @@ template<class vobj> void Copy_plane(Lattice<vobj>& lhs,const Lattice<vobj> &rhs
 
   {
     auto table = MapCshiftTable();
+#ifdef ACCELERATOR_CSHIFT    
     autoView(rhs_v , rhs, AcceleratorRead);
     autoView(lhs_v , lhs, AcceleratorWrite);
     accelerator_for(i,ent,vobj::Nsimd(),{
       coalescedWrite(lhs_v[table[i].first],coalescedRead(rhs_v[table[i].second]));
     });
+#else
+    autoView(rhs_v , rhs, CpuRead);
+    autoView(lhs_v , lhs, CpuWrite);
+    thread_for(i,ent,{
+      lhs_v[table[i].first]=rhs_v[table[i].second];
+    });
+#endif
   }
 }
 
@@ -345,11 +412,19 @@ template<class vobj> void Copy_plane_permute(Lattice<vobj>& lhs,const Lattice<vo
 
   {
     auto table = MapCshiftTable();
+#ifdef ACCELERATOR_CSHIFT    
     autoView( rhs_v, rhs, AcceleratorRead);
     autoView( lhs_v, lhs, AcceleratorWrite);
     accelerator_for(i,ent,1,{
       permute(lhs_v[table[i].first],rhs_v[table[i].second],permute_type);
     });
+#else
+    autoView( rhs_v, rhs, CpuRead);
+    autoView( lhs_v, lhs, CpuWrite);
+    thread_for(i,ent,{
+      permute(lhs_v[table[i].first],rhs_v[table[i].second],permute_type);
+    });
+#endif
   }
 }
 

Grid/cshift/Cshift_mpi.h

@@ -31,7 +31,7 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
 
 
 NAMESPACE_BEGIN(Grid); 
-const int Cshift_verbose=0;
+
 template<class vobj> Lattice<vobj> Cshift(const Lattice<vobj> &rhs,int dimension,int shift)
 {
   typedef typename vobj::vector_type vector_type;
@@ -55,17 +55,17 @@ template<class vobj> Lattice<vobj> Cshift(const Lattice<vobj> &rhs,int dimension
   RealD t1,t0;
   t0=usecond();
   if ( !comm_dim ) {
-    //    std::cout << "CSHIFT: Cshift_local" <<std::endl;
+    //std::cout << "CSHIFT: Cshift_local" <<std::endl;
     Cshift_local(ret,rhs,dimension,shift); // Handles checkerboarding
   } else if ( splice_dim ) {
-    //    std::cout << "CSHIFT: Cshift_comms_simd call - splice_dim = " << splice_dim << " shift " << shift << " dimension = " << dimension << std::endl;
+    //std::cout << "CSHIFT: Cshift_comms_simd call - splice_dim = " << splice_dim << " shift " << shift << " dimension = " << dimension << std::endl;
     Cshift_comms_simd(ret,rhs,dimension,shift);
   } else {
-    //    std::cout << "CSHIFT: Cshift_comms" <<std::endl;
+    //std::cout << "CSHIFT: Cshift_comms" <<std::endl;
     Cshift_comms(ret,rhs,dimension,shift);
   }
   t1=usecond();
-  if(Cshift_verbose) std::cout << GridLogPerformance << "Cshift took "<< (t1-t0)/1e3 << " ms"<<std::endl;
+  //  std::cout << GridLogPerformance << "Cshift took "<< (t1-t0)/1e3 << " ms"<<std::endl;
   return ret;
 }
 
@@ -94,16 +94,18 @@ template<class vobj> void Cshift_comms_simd(Lattice<vobj>& ret,const Lattice<vob
   sshift[0] = rhs.Grid()->CheckerBoardShiftForCB(rhs.Checkerboard(),dimension,shift,Even);
   sshift[1] = rhs.Grid()->CheckerBoardShiftForCB(rhs.Checkerboard(),dimension,shift,Odd);
 
-  //  std::cout << "Cshift_comms_simd dim "<<dimension<<"cb "<<rhs.Checkerboard()<<"shift "<<shift<<" sshift " << sshift[0]<<" "<<sshift[1]<<std::endl;
+  //std::cout << "Cshift_comms_simd dim "<<dimension<<"cb "<<rhs.checkerboard<<"shift "<<shift<<" sshift " << sshift[0]<<" "<<sshift[1]<<std::endl;
   if ( sshift[0] == sshift[1] ) {
-    //    std::cout << "Single pass Cshift_comms" <<std::endl;
+    //std::cout << "Single pass Cshift_comms" <<std::endl;
     Cshift_comms_simd(ret,rhs,dimension,shift,0x3);
   } else {
-    //    std::cout << "Two pass Cshift_comms" <<std::endl;
+    //std::cout << "Two pass Cshift_comms" <<std::endl;
     Cshift_comms_simd(ret,rhs,dimension,shift,0x1);// if checkerboard is unfavourable take two passes
     Cshift_comms_simd(ret,rhs,dimension,shift,0x2);// both with block stride loop iteration
   }
 }
+#define ACCELERATOR_CSHIFT_NO_COPY
+#ifdef ACCELERATOR_CSHIFT_NO_COPY
 template<class vobj> void Cshift_comms(Lattice<vobj> &ret,const Lattice<vobj> &rhs,int dimension,int shift,int cbmask)
 {
   typedef typename vobj::vector_type vector_type;
@@ -123,13 +125,9 @@ template<class vobj> void Cshift_comms(Lattice<vobj> &ret,const Lattice<vobj> &r
   assert(shift<fd);
   
   int buffer_size = rhs.Grid()->_slice_nblock[dimension]*rhs.Grid()->_slice_block[dimension];
-  static deviceVector<vobj> send_buf; send_buf.resize(buffer_size);
-  static deviceVector<vobj> recv_buf; recv_buf.resize(buffer_size);
-#ifndef ACCELERATOR_AWARE_MPI
-  static hostVector<vobj> hsend_buf; hsend_buf.resize(buffer_size);
-  static hostVector<vobj> hrecv_buf; hrecv_buf.resize(buffer_size);
-#endif
-  
+  static cshiftVector<vobj> send_buf; send_buf.resize(buffer_size);
+  static cshiftVector<vobj> recv_buf; recv_buf.resize(buffer_size);
+    
   int cb= (cbmask==0x2)? Odd : Even;
   int sshift= rhs.Grid()->CheckerBoardShiftForCB(rhs.Checkerboard(),dimension,shift,cb);
   RealD tcopy=0.0;
@@ -160,31 +158,18 @@ template<class vobj> void Cshift_comms(Lattice<vobj> &ret,const Lattice<vobj> &r
       //      int rank           = grid->_processor;
       int recv_from_rank;
       int xmit_to_rank;
-
       grid->ShiftedRanks(dimension,comm_proc,xmit_to_rank,recv_from_rank);
       
       tcomms-=usecond();
-      grid->Barrier();
+      //      grid->Barrier();
 
-#ifdef ACCELERATOR_AWARE_MPI
       grid->SendToRecvFrom((void *)&send_buf[0],
 			   xmit_to_rank,
 			   (void *)&recv_buf[0],
 			   recv_from_rank,
 			   bytes);
-#else
-      // bouncy bouncy
-      acceleratorCopyFromDevice(&send_buf[0],&hsend_buf[0],bytes);
-      grid->SendToRecvFrom((void *)&hsend_buf[0],
-			   xmit_to_rank,
-			   (void *)&hrecv_buf[0],
-			   recv_from_rank,
-			   bytes);
-      acceleratorCopyToDevice(&hrecv_buf[0],&recv_buf[0],bytes);
-#endif
-
       xbytes+=bytes;
-      grid->Barrier();
+      //      grid->Barrier();
       tcomms+=usecond();
 
       tscatter-=usecond();
@@ -192,13 +177,13 @@ template<class vobj> void Cshift_comms(Lattice<vobj> &ret,const Lattice<vobj> &r
       tscatter+=usecond();
     }
   }
-  if (Cshift_verbose){
-    std::cout << GridLogPerformance << " Cshift copy    "<<tcopy/1e3<<" ms"<<std::endl;
-    std::cout << GridLogPerformance << " Cshift gather  "<<tgather/1e3<<" ms"<<std::endl;
-    std::cout << GridLogPerformance << " Cshift scatter "<<tscatter/1e3<<" ms"<<std::endl;
-    std::cout << GridLogPerformance << " Cshift comm    "<<tcomms/1e3<<" ms"<<std::endl;
-    std::cout << GridLogPerformance << " Cshift BW      "<<(2.0*xbytes)/tcomms<<" MB/s "<<2*xbytes<< " Bytes "<<std::endl;
-  }
+  /*
+  std::cout << GridLogPerformance << " Cshift copy    "<<tcopy/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift gather  "<<tgather/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift scatter "<<tscatter/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift comm    "<<tcomms/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift BW      "<<(2.0*xbytes)/tcomms<<" MB/s "<<2*xbytes<< " Bytes "<<std::endl;
+  */
 }
 
 template<class vobj> void  Cshift_comms_simd(Lattice<vobj> &ret,const Lattice<vobj> &rhs,int dimension,int shift,int cbmask)
@@ -216,9 +201,9 @@ template<class vobj> void  Cshift_comms_simd(Lattice<vobj> &ret,const Lattice<vo
   int simd_layout     = grid->_simd_layout[dimension];
   int comm_dim        = grid->_processors[dimension] >1 ;
 
-  //  std::cout << "Cshift_comms_simd dim "<< dimension << " fd "<<fd<<" rd "<<rd
-  //	    << " ld "<<ld<<" pd " << pd<<" simd_layout "<<simd_layout 
-  //	    << " comm_dim " << comm_dim << " cbmask " << cbmask <<std::endl;
+  //std::cout << "Cshift_comms_simd dim "<< dimension << " fd "<<fd<<" rd "<<rd
+  //    << " ld "<<ld<<" pd " << pd<<" simd_layout "<<simd_layout 
+  //    << " comm_dim " << comm_dim << " cbmask " << cbmask <<std::endl;
 
   assert(comm_dim==1);
   assert(simd_layout==2);
@@ -239,20 +224,16 @@ template<class vobj> void  Cshift_comms_simd(Lattice<vobj> &ret,const Lattice<vo
   int buffer_size = grid->_slice_nblock[dimension]*grid->_slice_block[dimension];
   //  int words = sizeof(vobj)/sizeof(vector_type);
 
-  static std::vector<deviceVector<scalar_object> >  send_buf_extract; send_buf_extract.resize(Nsimd);
-  static std::vector<deviceVector<scalar_object> >  recv_buf_extract; recv_buf_extract.resize(Nsimd);
+  static std::vector<cshiftVector<scalar_object> >  send_buf_extract; send_buf_extract.resize(Nsimd);
+  static std::vector<cshiftVector<scalar_object> >  recv_buf_extract; recv_buf_extract.resize(Nsimd);
   scalar_object *  recv_buf_extract_mpi;
   scalar_object *  send_buf_extract_mpi;
-
+ 
   for(int s=0;s<Nsimd;s++){
     send_buf_extract[s].resize(buffer_size);
     recv_buf_extract[s].resize(buffer_size);
   }
-#ifndef ACCELERATOR_AWARE_MPI
-  hostVector<scalar_object> hsend_buf; hsend_buf.resize(buffer_size);
-  hostVector<scalar_object> hrecv_buf; hrecv_buf.resize(buffer_size);
-#endif
-  
+
   int bytes = buffer_size*sizeof(scalar_object);
 
   ExtractPointerArray<scalar_object>  pointers(Nsimd); // 
@@ -300,29 +281,18 @@ template<class vobj> void  Cshift_comms_simd(Lattice<vobj> &ret,const Lattice<vo
 	grid->ShiftedRanks(dimension,nbr_proc,xmit_to_rank,recv_from_rank); 
 
 	tcomms-=usecond();
-	grid->Barrier();
+	//	grid->Barrier();
 
 	send_buf_extract_mpi = &send_buf_extract[nbr_lane][0];
 	recv_buf_extract_mpi = &recv_buf_extract[i][0];
-#ifdef ACCELERATOR_AWARE_MPI
 	grid->SendToRecvFrom((void *)send_buf_extract_mpi,
 			     xmit_to_rank,
 			     (void *)recv_buf_extract_mpi,
 			     recv_from_rank,
 			     bytes);
-#else
-      // bouncy bouncy
-	acceleratorCopyFromDevice((void *)send_buf_extract_mpi,(void *)&hsend_buf[0],bytes);
-	grid->SendToRecvFrom((void *)&hsend_buf[0],
-			     xmit_to_rank,
-			     (void *)&hrecv_buf[0],
-			     recv_from_rank,
-			     bytes);
-	acceleratorCopyToDevice((void *)&hrecv_buf[0],(void *)recv_buf_extract_mpi,bytes);
-#endif
 
 	xbytes+=bytes;
-	grid->Barrier();
+	//	grid->Barrier();
 	tcomms+=usecond();
 
 	rpointers[i] = &recv_buf_extract[i][0];
@@ -335,15 +305,242 @@ template<class vobj> void  Cshift_comms_simd(Lattice<vobj> &ret,const Lattice<vo
     Scatter_plane_merge(ret,rpointers,dimension,x,cbmask);
     tscatter+=usecond();
   }
-  if(Cshift_verbose){
-    std::cout << GridLogPerformance << " Cshift (s) copy    "<<tcopy/1e3<<" ms"<<std::endl;
-    std::cout << GridLogPerformance << " Cshift (s) gather  "<<tgather/1e3<<" ms"<<std::endl;
-    std::cout << GridLogPerformance << " Cshift (s) scatter "<<tscatter/1e3<<" ms"<<std::endl;
-    std::cout << GridLogPerformance << " Cshift (s) comm    "<<tcomms/1e3<<" ms"<<std::endl;
-    std::cout << GridLogPerformance << " Cshift BW      "<<(2.0*xbytes)/tcomms<<" MB/s "<<2*xbytes<< " Bytes "<<std::endl;
+  /*
+  std::cout << GridLogPerformance << " Cshift (s) copy    "<<tcopy/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift (s) gather  "<<tgather/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift (s) scatter "<<tscatter/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift (s) comm    "<<tcomms/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift BW      "<<(2.0*xbytes)/tcomms<<" MB/s "<<2*xbytes<< " Bytes "<<std::endl;
+  */
+}
+#else 
+template<class vobj> void Cshift_comms(Lattice<vobj> &ret,const Lattice<vobj> &rhs,int dimension,int shift,int cbmask)
+{
+  typedef typename vobj::vector_type vector_type;
+  typedef typename vobj::scalar_type scalar_type;
+
+  GridBase *grid=rhs.Grid();
+  Lattice<vobj> temp(rhs.Grid());
+
+  int fd              = rhs.Grid()->_fdimensions[dimension];
+  int rd              = rhs.Grid()->_rdimensions[dimension];
+  int pd              = rhs.Grid()->_processors[dimension];
+  int simd_layout     = rhs.Grid()->_simd_layout[dimension];
+  int comm_dim        = rhs.Grid()->_processors[dimension] >1 ;
+  assert(simd_layout==1);
+  assert(comm_dim==1);
+  assert(shift>=0);
+  assert(shift<fd);
+  RealD tcopy=0.0;
+  RealD tgather=0.0;
+  RealD tscatter=0.0;
+  RealD tcomms=0.0;
+  uint64_t xbytes=0;
+  
+  int buffer_size = rhs.Grid()->_slice_nblock[dimension]*rhs.Grid()->_slice_block[dimension];
+  static cshiftVector<vobj> send_buf_v; send_buf_v.resize(buffer_size);
+  static cshiftVector<vobj> recv_buf_v; recv_buf_v.resize(buffer_size);
+  vobj *send_buf;
+  vobj *recv_buf;
+  {
+    grid->ShmBufferFreeAll();
+    size_t bytes = buffer_size*sizeof(vobj);
+    send_buf=(vobj *)grid->ShmBufferMalloc(bytes);
+    recv_buf=(vobj *)grid->ShmBufferMalloc(bytes);
   }
+    
+  int cb= (cbmask==0x2)? Odd : Even;
+  int sshift= rhs.Grid()->CheckerBoardShiftForCB(rhs.Checkerboard(),dimension,shift,cb);
+
+  for(int x=0;x<rd;x++){       
+
+    int sx        =  (x+sshift)%rd;
+    int comm_proc = ((x+sshift)/rd)%pd;
+    
+    if (comm_proc==0) {
+
+      tcopy-=usecond();
+      Copy_plane(ret,rhs,dimension,x,sx,cbmask); 
+      tcopy+=usecond();
+
+    } else {
+
+      int words = buffer_size;
+      if (cbmask != 0x3) words=words>>1;
+
+      int bytes = words * sizeof(vobj);
+
+      tgather-=usecond();
+      Gather_plane_simple (rhs,send_buf_v,dimension,sx,cbmask);
+      tgather+=usecond();
+
+      //      int rank           = grid->_processor;
+      int recv_from_rank;
+      int xmit_to_rank;
+      grid->ShiftedRanks(dimension,comm_proc,xmit_to_rank,recv_from_rank);
+
+
+      tcomms-=usecond();
+      //      grid->Barrier();
+
+      acceleratorCopyDeviceToDevice((void *)&send_buf_v[0],(void *)&send_buf[0],bytes);
+      grid->SendToRecvFrom((void *)&send_buf[0],
+			   xmit_to_rank,
+			   (void *)&recv_buf[0],
+			   recv_from_rank,
+			   bytes);
+      xbytes+=bytes;
+      acceleratorCopyDeviceToDevice((void *)&recv_buf[0],(void *)&recv_buf_v[0],bytes);
+
+      //      grid->Barrier();
+      tcomms+=usecond();
+
+      tscatter-=usecond();
+      Scatter_plane_simple (ret,recv_buf_v,dimension,x,cbmask);
+      tscatter+=usecond();
+    }
+  }
+  /*
+  std::cout << GridLogPerformance << " Cshift copy    "<<tcopy/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift gather  "<<tgather/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift scatter "<<tscatter/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift comm    "<<tcomms/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift BW      "<<(2.0*xbytes)/tcomms<<" MB/s "<<2*xbytes<< " Bytes "<<std::endl;
+  */
 }
 
+template<class vobj> void  Cshift_comms_simd(Lattice<vobj> &ret,const Lattice<vobj> &rhs,int dimension,int shift,int cbmask)
+{
+  GridBase *grid=rhs.Grid();
+  const int Nsimd = grid->Nsimd();
+  typedef typename vobj::vector_type vector_type;
+  typedef typename vobj::scalar_object scalar_object;
+  typedef typename vobj::scalar_type scalar_type;
+   
+  int fd = grid->_fdimensions[dimension];
+  int rd = grid->_rdimensions[dimension];
+  int ld = grid->_ldimensions[dimension];
+  int pd = grid->_processors[dimension];
+  int simd_layout     = grid->_simd_layout[dimension];
+  int comm_dim        = grid->_processors[dimension] >1 ;
+
+  //std::cout << "Cshift_comms_simd dim "<< dimension << " fd "<<fd<<" rd "<<rd
+  //    << " ld "<<ld<<" pd " << pd<<" simd_layout "<<simd_layout 
+  //    << " comm_dim " << comm_dim << " cbmask " << cbmask <<std::endl;
+
+  assert(comm_dim==1);
+  assert(simd_layout==2);
+  assert(shift>=0);
+  assert(shift<fd);
+  RealD tcopy=0.0;
+  RealD tgather=0.0;
+  RealD tscatter=0.0;
+  RealD tcomms=0.0;
+  uint64_t xbytes=0;
+
+  int permute_type=grid->PermuteType(dimension);
+
+  ///////////////////////////////////////////////
+  // Simd direction uses an extract/merge pair
+  ///////////////////////////////////////////////
+  int buffer_size = grid->_slice_nblock[dimension]*grid->_slice_block[dimension];
+  //  int words = sizeof(vobj)/sizeof(vector_type);
+
+  static std::vector<cshiftVector<scalar_object> >  send_buf_extract; send_buf_extract.resize(Nsimd);
+  static std::vector<cshiftVector<scalar_object> >  recv_buf_extract; recv_buf_extract.resize(Nsimd);
+  scalar_object *  recv_buf_extract_mpi;
+  scalar_object *  send_buf_extract_mpi;
+  {
+    size_t bytes = sizeof(scalar_object)*buffer_size;
+    grid->ShmBufferFreeAll();
+    send_buf_extract_mpi = (scalar_object *)grid->ShmBufferMalloc(bytes);
+    recv_buf_extract_mpi = (scalar_object *)grid->ShmBufferMalloc(bytes);
+  }
+  for(int s=0;s<Nsimd;s++){
+    send_buf_extract[s].resize(buffer_size);
+    recv_buf_extract[s].resize(buffer_size);
+  }
+
+  int bytes = buffer_size*sizeof(scalar_object);
+
+  ExtractPointerArray<scalar_object>  pointers(Nsimd); // 
+  ExtractPointerArray<scalar_object> rpointers(Nsimd); // received pointers
+
+  ///////////////////////////////////////////
+  // Work out what to send where
+  ///////////////////////////////////////////
+  int cb    = (cbmask==0x2)? Odd : Even;
+  int sshift= grid->CheckerBoardShiftForCB(rhs.Checkerboard(),dimension,shift,cb);
+
+  // loop over outer coord planes orthog to dim
+  for(int x=0;x<rd;x++){       
+
+    // FIXME call local permute copy if none are offnode.
+    for(int i=0;i<Nsimd;i++){       
+      pointers[i] = &send_buf_extract[i][0];
+    }
+    tgather-=usecond();
+    int sx   = (x+sshift)%rd;
+    Gather_plane_extract(rhs,pointers,dimension,sx,cbmask);
+    tgather+=usecond();
+
+    for(int i=0;i<Nsimd;i++){
+      
+      int inner_bit = (Nsimd>>(permute_type+1));
+      int ic= (i&inner_bit)? 1:0;
+
+      int my_coor          = rd*ic + x;
+      int nbr_coor         = my_coor+sshift;
+      int nbr_proc = ((nbr_coor)/ld) % pd;// relative shift in processors
+
+      int nbr_ic   = (nbr_coor%ld)/rd;    // inner coord of peer
+      int nbr_ox   = (nbr_coor%rd);       // outer coord of peer
+      int nbr_lane = (i&(~inner_bit));
+
+      int recv_from_rank;
+      int xmit_to_rank;
+
+      if (nbr_ic) nbr_lane|=inner_bit;
+
+      assert (sx == nbr_ox);
+
+      if(nbr_proc){
+	grid->ShiftedRanks(dimension,nbr_proc,xmit_to_rank,recv_from_rank); 
+
+	tcomms-=usecond();
+	//	grid->Barrier();
+
+	acceleratorCopyDeviceToDevice((void *)&send_buf_extract[nbr_lane][0],(void *)send_buf_extract_mpi,bytes);
+	grid->SendToRecvFrom((void *)send_buf_extract_mpi,
+			     xmit_to_rank,
+			     (void *)recv_buf_extract_mpi,
+			     recv_from_rank,
+			     bytes);
+	acceleratorCopyDeviceToDevice((void *)recv_buf_extract_mpi,(void *)&recv_buf_extract[i][0],bytes);
+	xbytes+=bytes;
+
+	//	grid->Barrier();
+	tcomms+=usecond();
+	rpointers[i] = &recv_buf_extract[i][0];
+      } else { 
+	rpointers[i] = &send_buf_extract[nbr_lane][0];
+      }
+
+    }
+    tscatter-=usecond();
+    Scatter_plane_merge(ret,rpointers,dimension,x,cbmask);
+    tscatter+=usecond();
+
+  }
+  /*
+  std::cout << GridLogPerformance << " Cshift (s) copy    "<<tcopy/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift (s) gather  "<<tgather/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift (s) scatter "<<tscatter/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift (s) comm    "<<tcomms/1e3<<" ms"<<std::endl;
+  std::cout << GridLogPerformance << " Cshift BW      "<<(2.0*xbytes)/tcomms<<" MB/s"<<std::endl;
+  */
+}
+#endif
 NAMESPACE_END(Grid); 
 
 #endif

Grid/cshift/Cshift_table.cc

@@ -1,5 +1,5 @@
 #include <Grid/GridCore.h>       
 NAMESPACE_BEGIN(Grid);
 std::vector<std::pair<int,int> > Cshift_table; 
-deviceVector<std::pair<int,int> > Cshift_table_device; 
+commVector<std::pair<int,int> > Cshift_table_device; 
 NAMESPACE_END(Grid);

Grid/lattice/Lattice_arith.h

@@ -257,30 +257,17 @@ void axpby(Lattice<vobj> &ret,sobj a,sobj b,const Lattice<vobj> &x,const Lattice
   });
 }
 
-#define FAST_AXPY_NORM
 template<class sobj,class vobj> inline
 RealD axpy_norm(Lattice<vobj> &ret,sobj a,const Lattice<vobj> &x,const Lattice<vobj> &y)
 {
   GRID_TRACE("axpy_norm");
-#ifdef FAST_AXPY_NORM
-  return axpy_norm_fast(ret,a,x,y);
-#else
-  ret = a*x+y;
-  RealD nn=norm2(ret);
-  return nn;
-#endif
+    return axpy_norm_fast(ret,a,x,y);
 }
 template<class sobj,class vobj> inline
 RealD axpby_norm(Lattice<vobj> &ret,sobj a,sobj b,const Lattice<vobj> &x,const Lattice<vobj> &y)
 {
   GRID_TRACE("axpby_norm");
-#ifdef FAST_AXPY_NORM
-  return axpby_norm_fast(ret,a,b,x,y);
-#else
-  ret = a*x+b*y;
-  RealD nn=norm2(ret);
-  return nn;
-#endif
+    return axpby_norm_fast(ret,a,b,x,y);
 }
 
 /// Trace product

Grid/lattice/Lattice_base.h

@@ -236,20 +236,17 @@ public:
   template<class sobj> inline Lattice<vobj> & operator = (const sobj & r){
     vobj vtmp;
     vtmp = r;
-#if 0
-    deviceVector<vobj> vvtmp(1);
-    acceleratorPut(vvtmp[0],vtmp);
-    vobj *vvtmp_p = & vvtmp[0];
-    auto me  = View(AcceleratorWrite);
-    accelerator_for(ss,me.size(),vobj::Nsimd(),{
-	auto stmp=coalescedRead(*vvtmp_p);
-	coalescedWrite(me[ss],stmp);
-    });
-#else    
+#if 1
     auto me  = View(CpuWrite);
     thread_for(ss,me.size(),{
        me[ss]= r;
       });
+#else    
+    auto me  = View(AcceleratorWrite);
+    accelerator_for(ss,me.size(),vobj::Nsimd(),{
+	auto stmp=coalescedRead(vtmp);
+	coalescedWrite(me[ss],stmp);
+    });
 #endif    
     me.ViewClose();
     return *this;

Grid/lattice/Lattice_basis.h

@@ -53,19 +53,36 @@ void basisRotate(VField &basis,Matrix& Qt,int j0, int j1, int k0,int k1,int Nm)
   typedef decltype(basis[0]) Field;
   typedef decltype(basis[0].View(AcceleratorRead)) View;
 
-  hostVector<View>  h_basis_v(basis.size());
-  deviceVector<View> d_basis_v(basis.size());
-  typedef typename std::remove_reference<decltype(h_basis_v[0][0])>::type vobj;
+  Vector<View> basis_v; basis_v.reserve(basis.size());
+  typedef typename std::remove_reference<decltype(basis_v[0][0])>::type vobj;
   typedef typename std::remove_reference<decltype(Qt(0,0))>::type Coeff_t;
-
   GridBase* grid = basis[0].Grid();
       
   for(int k=0;k<basis.size();k++){
-    h_basis_v[k] = basis[k].View(AcceleratorWrite);
-    acceleratorPut(d_basis_v[k],h_basis_v[k]);
+    basis_v.push_back(basis[k].View(AcceleratorWrite));
   }
 
-  View *basis_vp = &d_basis_v[0];
+#if ( !(defined(GRID_CUDA) || defined(GRID_HIP) || defined(GRID_SYCL)) )
+  int max_threads = thread_max();
+  Vector < vobj > Bt(Nm * max_threads);
+  thread_region
+    {
+      vobj* B = &Bt[Nm * thread_num()];
+      thread_for_in_region(ss, grid->oSites(),{
+	  for(int j=j0; j<j1; ++j) B[j]=0.;
+      
+	  for(int j=j0; j<j1; ++j){
+	    for(int k=k0; k<k1; ++k){
+	      B[j] +=Qt(j,k) * basis_v[k][ss];
+	    }
+	  }
+	  for(int j=j0; j<j1; ++j){
+	    basis_v[j][ss] = B[j];
+	  }
+	});
+    }
+#else
+  View *basis_vp = &basis_v[0];
 
   int nrot = j1-j0;
   if (!nrot) // edge case not handled gracefully by Cuda
@@ -74,19 +91,17 @@ void basisRotate(VField &basis,Matrix& Qt,int j0, int j1, int k0,int k1,int Nm)
   uint64_t oSites   =grid->oSites();
   uint64_t siteBlock=(grid->oSites()+nrot-1)/nrot; // Maximum 1 additional vector overhead
 
-  deviceVector <vobj> Bt(siteBlock * nrot); 
+  Vector <vobj> Bt(siteBlock * nrot); 
   auto Bp=&Bt[0];
 
   // GPU readable copy of matrix
-  hostVector<Coeff_t> h_Qt_jv(Nm*Nm);
-  deviceVector<Coeff_t> Qt_jv(Nm*Nm);
+  Vector<Coeff_t> Qt_jv(Nm*Nm);
   Coeff_t *Qt_p = & Qt_jv[0];
   thread_for(i,Nm*Nm,{
       int j = i/Nm;
       int k = i%Nm;
-      h_Qt_jv[i]=Qt(j,k);
+      Qt_p[i]=Qt(j,k);
   });
-  acceleratorCopyToDevice(&h_Qt_jv[0],Qt_p,Nm*Nm*sizeof(Coeff_t));
 
   // Block the loop to keep storage footprint down
   for(uint64_t s=0;s<oSites;s+=siteBlock){
@@ -122,8 +137,9 @@ void basisRotate(VField &basis,Matrix& Qt,int j0, int j1, int k0,int k1,int Nm)
 	coalescedWrite(basis_vp[jj][sss],coalescedRead(Bp[ss*nrot+j]));
       });
   }
+#endif
 
-  for(int k=0;k<basis.size();k++) h_basis_v[k].ViewClose();
+  for(int k=0;k<basis.size();k++) basis_v[k].ViewClose();
 }
 
 // Extract a single rotated vector
@@ -136,19 +152,16 @@ void basisRotateJ(Field &result,std::vector<Field> &basis,Eigen::MatrixXd& Qt,in
 
   result.Checkerboard() = basis[0].Checkerboard();
 
-  hostVector<View>  h_basis_v(basis.size());
-  deviceVector<View> d_basis_v(basis.size());
+  Vector<View> basis_v; basis_v.reserve(basis.size());
   for(int k=0;k<basis.size();k++){
-    h_basis_v[k]=basis[k].View(AcceleratorRead);
-    acceleratorPut(d_basis_v[k],h_basis_v[k]);
+    basis_v.push_back(basis[k].View(AcceleratorRead));
   }
-
   vobj zz=Zero();
-  deviceVector<double> Qt_jv(Nm);
+  Vector<double> Qt_jv(Nm);
   double * Qt_j = & Qt_jv[0];
-  for(int k=0;k<Nm;++k) acceleratorPut(Qt_j[k],Qt(j,k));
+  for(int k=0;k<Nm;++k) Qt_j[k]=Qt(j,k);
 
-  auto basis_vp=& d_basis_v[0];
+  auto basis_vp=& basis_v[0];
   autoView(result_v,result,AcceleratorWrite);
   accelerator_for(ss, grid->oSites(),vobj::Nsimd(),{
     vobj zzz=Zero();
@@ -158,7 +171,7 @@ void basisRotateJ(Field &result,std::vector<Field> &basis,Eigen::MatrixXd& Qt,in
     }
     coalescedWrite(result_v[ss], B);
   });
-  for(int k=0;k<basis.size();k++) h_basis_v[k].ViewClose();
+  for(int k=0;k<basis.size();k++) basis_v[k].ViewClose();
 }
 
 template<class Field>

Grid/lattice/Lattice_peekpoke.h

@@ -165,7 +165,7 @@ inline void peekLocalSite(sobj &s,const LatticeView<vobj> &l,Coordinate &site)
 
   int Nsimd = grid->Nsimd();
 
-  //  assert( l.Checkerboard()== grid->CheckerBoard(site));
+  assert( l.Checkerboard()== grid->CheckerBoard(site));
   assert( sizeof(sobj)*Nsimd == sizeof(vobj));
 
   static const int words=sizeof(vobj)/sizeof(vector_type);
@@ -179,7 +179,7 @@ inline void peekLocalSite(sobj &s,const LatticeView<vobj> &l,Coordinate &site)
   for(int w=0;w<words;w++){
     pt[w] = getlane(vp[w],idx);
   }
-  //  std::cout << "peekLocalSite "<<site<<" "<<odx<<","<<idx<<" "<<s<<std::endl;
+      
   return;
 };
 template<class vobj,class sobj>
@@ -202,7 +202,7 @@ inline void pokeLocalSite(const sobj &s,LatticeView<vobj> &l,Coordinate &site)
 
   int Nsimd = grid->Nsimd();
 
-  //  assert( l.Checkerboard()== grid->CheckerBoard(site));
+  assert( l.Checkerboard()== grid->CheckerBoard(site));
   assert( sizeof(sobj)*Nsimd == sizeof(vobj));
 
   static const int words=sizeof(vobj)/sizeof(vector_type);

Grid/lattice/Lattice_reduction.h

@@ -46,7 +46,7 @@ inline typename vobj::scalar_object sum_cpu(const vobj *arg, Integer osites)
   //  const int Nsimd = vobj::Nsimd();
   const int nthread = GridThread::GetThreads();
 
-  std::vector<sobj> sumarray(nthread);
+  Vector<sobj> sumarray(nthread);
   for(int i=0;i<nthread;i++){
     sumarray[i]=Zero();
   }
@@ -75,7 +75,7 @@ inline typename vobj::scalar_objectD sumD_cpu(const vobj *arg, Integer osites)
 
   const int nthread = GridThread::GetThreads();
 
-  std::vector<sobj> sumarray(nthread);
+  Vector<sobj> sumarray(nthread);
   for(int i=0;i<nthread;i++){
     sumarray[i]=Zero();
   }
@@ -290,10 +290,8 @@ template<class vobj>
 inline ComplexD innerProduct(const Lattice<vobj> &left,const Lattice<vobj> &right) {
   GridBase *grid = left.Grid();
 
-  bool ok;
 #ifdef GRID_SYCL
   uint64_t csum=0;
-  uint64_t csum2=0;
   if ( FlightRecorder::LoggingMode != FlightRecorder::LoggingModeNone)
   {
     // Hack
@@ -302,33 +300,13 @@ inline ComplexD innerProduct(const Lattice<vobj> &left,const Lattice<vobj> &righ
     Integer words = left.Grid()->oSites()*sizeof(vobj)/sizeof(uint64_t);
     uint64_t *base= (uint64_t *)&l_v[0];
     csum=svm_xor(base,words);
-    ok = FlightRecorder::CsumLog(csum);
-    if ( !ok ) {
-      csum2=svm_xor(base,words);
-      std::cerr<< " Bad CSUM " << std::hex<< csum << " recomputed as "<<csum2<<std::dec<<std::endl;
-    } else {
-      //      csum2=svm_xor(base,words);
-      //      std::cerr<< " ok CSUM " << std::hex<< csum << " recomputed as "<<csum2<<std::dec<<std::endl;
-    }
-    assert(ok);
   }
+  FlightRecorder::CsumLog(csum);
 #endif
-  FlightRecorder::StepLog("rank inner product");
   ComplexD nrm = rankInnerProduct(left,right);
-  //  ComplexD nrmck=nrm;
   RealD local = real(nrm);
-  ok = FlightRecorder::NormLog(real(nrm));
-  if ( !ok ) {
-    ComplexD nrm2 = rankInnerProduct(left,right);
-    RealD local2 = real(nrm2);
-    std::cerr<< " Bad NORM " << local << " recomputed as "<<local2<<std::endl;
-    assert(ok);
-  }
-  FlightRecorder::StepLog("Start global sum");
-  //  grid->GlobalSumP2P(nrm);
+  FlightRecorder::NormLog(real(nrm)); 
   grid->GlobalSum(nrm);
-  FlightRecorder::StepLog("Finished global sum");
-  //  std::cout << " norm "<< nrm << " p2p norm "<<nrmck<<std::endl;
   FlightRecorder::ReductionLog(local,real(nrm)); 
   return nrm;
 }
@@ -365,6 +343,18 @@ axpby_norm_fast(Lattice<vobj> &z,sobj a,sobj b,const Lattice<vobj> &x,const Latt
   autoView( x_v, x, AcceleratorRead);
   autoView( y_v, y, AcceleratorRead);
   autoView( z_v, z, AcceleratorWrite);
+#if 0
+  typedef decltype(innerProductD(x_v[0],y_v[0])) inner_t;
+  Vector<inner_t> inner_tmp(sites);
+  auto inner_tmp_v = &inner_tmp[0];
+
+  accelerator_for( ss, sites, nsimd,{
+      auto tmp = a*x_v(ss)+b*y_v(ss);
+      coalescedWrite(inner_tmp_v[ss],innerProductD(tmp,tmp));
+      coalescedWrite(z_v[ss],tmp);
+  });
+  nrm = real(TensorRemove(sum(inner_tmp_v,sites)));
+#else
   typedef decltype(innerProduct(x_v[0],y_v[0])) inner_t;
   deviceVector<inner_t> inner_tmp;
   inner_tmp.resize(sites);
@@ -375,44 +365,9 @@ axpby_norm_fast(Lattice<vobj> &z,sobj a,sobj b,const Lattice<vobj> &x,const Latt
       coalescedWrite(inner_tmp_v[ss],innerProduct(tmp,tmp));
       coalescedWrite(z_v[ss],tmp);
   });
-  bool ok;
-#ifdef GRID_SYCL
-  uint64_t csum=0;
-  uint64_t csum2=0;
-  if ( FlightRecorder::LoggingMode != FlightRecorder::LoggingModeNone)
-  {
-    // z_v
-    {
-      Integer words = sites*sizeof(vobj)/sizeof(uint64_t);
-      uint64_t *base= (uint64_t *)&z_v[0];
-      csum=svm_xor(base,words);
-      ok = FlightRecorder::CsumLog(csum);
-      if ( !ok ) {
-	csum2=svm_xor(base,words);
-	std::cerr<< " Bad z_v CSUM " << std::hex<< csum << " recomputed as "<<csum2<<std::dec<<std::endl;
-      }
-      assert(ok);
-    }
-    // inner_v
-    {
-      Integer words = sites*sizeof(inner_t)/sizeof(uint64_t);
-      uint64_t *base= (uint64_t *)&inner_tmp_v[0];
-      csum=svm_xor(base,words);
-      ok = FlightRecorder::CsumLog(csum);
-      if ( !ok ) {
-	csum2=svm_xor(base,words);
-	std::cerr<< " Bad inner_tmp_v CSUM " << std::hex<< csum << " recomputed as "<<csum2<<std::dec<<std::endl;
-      }
-      assert(ok);
-    }
-  }
-#endif
   nrm = real(TensorRemove(sumD(inner_tmp_v,sites)));
-  ok = FlightRecorder::NormLog(real(nrm));
-  assert(ok);
-  RealD local = real(nrm);
+#endif
   grid->GlobalSum(nrm);
-  FlightRecorder::ReductionLog(local,real(nrm));
   return nrm; 
 }
  
@@ -422,7 +377,7 @@ innerProductNorm(ComplexD& ip, RealD &nrm, const Lattice<vobj> &left,const Latti
   conformable(left,right);
 
   typedef typename vobj::vector_typeD vector_type;
-  std::vector<ComplexD> tmp(2);
+  Vector<ComplexD> tmp(2);
 
   GridBase *grid = left.Grid();
 
@@ -432,8 +387,8 @@ innerProductNorm(ComplexD& ip, RealD &nrm, const Lattice<vobj> &left,const Latti
   // GPU
   typedef decltype(innerProductD(vobj(),vobj())) inner_t;
   typedef decltype(innerProductD(vobj(),vobj())) norm_t;
-  deviceVector<inner_t> inner_tmp(sites);
-  deviceVector<norm_t>  norm_tmp(sites);
+  Vector<inner_t> inner_tmp(sites);
+  Vector<norm_t>  norm_tmp(sites);
   auto inner_tmp_v = &inner_tmp[0];
   auto norm_tmp_v = &norm_tmp[0];
   {
@@ -483,9 +438,7 @@ inline auto sum(const LatticeTrinaryExpression<Op,T1,T2,T3> & expr)
 // sliceSum, sliceInnerProduct, sliceAxpy, sliceNorm etc...
 //////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
-template<class vobj> inline void sliceSum(const Lattice<vobj> &Data,
-					  std::vector<typename vobj::scalar_object> &result,
-					  int orthogdim)
+template<class vobj> inline void sliceSum(const Lattice<vobj> &Data,std::vector<typename vobj::scalar_object> &result,int orthogdim)
 {
   ///////////////////////////////////////////////////////
   // FIXME precision promoted summation
@@ -507,8 +460,8 @@ template<class vobj> inline void sliceSum(const Lattice<vobj> &Data,
   int ld=grid->_ldimensions[orthogdim];
   int rd=grid->_rdimensions[orthogdim];
 
-  std::vector<vobj> lvSum(rd); // will locally sum vectors first
-  std::vector<sobj> lsSum(ld,Zero());                    // sum across these down to scalars
+  Vector<vobj> lvSum(rd); // will locally sum vectors first
+  Vector<sobj> lsSum(ld,Zero());                    // sum across these down to scalars
   ExtractBuffer<sobj> extracted(Nsimd);                  // splitting the SIMD
 
   result.resize(fd); // And then global sum to return the same vector to every node 
@@ -556,8 +509,6 @@ template<class vobj> inline void sliceSum(const Lattice<vobj> &Data,
   scalar_type * ptr = (scalar_type *) &result[0];
   int words = fd*sizeof(sobj)/sizeof(scalar_type);
   grid->GlobalSumVector(ptr, words);
-  //  std::cout << GridLogMessage << " sliceSum local"<<t_sum<<" us, host+mpi "<<t_rest<<std::endl;
-  
 }
 template<class vobj> inline
 std::vector<typename vobj::scalar_object> 
@@ -568,20 +519,7 @@ sliceSum(const Lattice<vobj> &Data,int orthogdim)
   return result;
 }
 
-/*
-Reimplement
 
-1)
-template<class vobj>
-static void sliceMaddMatrix (Lattice<vobj> &R,Eigen::MatrixXcd &aa,const Lattice<vobj> &X,const Lattice<vobj> &Y,int Orthog,RealD scale=1.0) 
-
-2)
-template<class vobj>
-static void sliceInnerProductMatrix(  Eigen::MatrixXcd &mat, const Lattice<vobj> &lhs,const Lattice<vobj> &rhs,int Orthog) 
-
-3)
--- Make Slice Mul Matrix call sliceMaddMatrix
- */
 template<class vobj>
 static void sliceInnerProductVector( std::vector<ComplexD> & result, const Lattice<vobj> &lhs,const Lattice<vobj> &rhs,int orthogdim) 
 {
@@ -601,8 +539,8 @@ static void sliceInnerProductVector( std::vector<ComplexD> & result, const Latti
   int ld=grid->_ldimensions[orthogdim];
   int rd=grid->_rdimensions[orthogdim];
 
-  std::vector<vector_type> lvSum(rd); // will locally sum vectors first
-  std::vector<scalar_type > lsSum(ld,scalar_type(0.0));                    // sum across these down to scalars
+  Vector<vector_type> lvSum(rd); // will locally sum vectors first
+  Vector<scalar_type > lsSum(ld,scalar_type(0.0));                    // sum across these down to scalars
   ExtractBuffer<iScalar<scalar_type> > extracted(Nsimd);   // splitting the SIMD  
 
   result.resize(fd); // And then global sum to return the same vector to every node for IO to file
@@ -732,96 +670,203 @@ static void sliceMaddVector(Lattice<vobj> &R,std::vector<RealD> &a,const Lattice
   }
 };
 
+/*
 inline GridBase         *makeSubSliceGrid(const GridBase *BlockSolverGrid,int Orthog)
 {
   int NN    = BlockSolverGrid->_ndimension;
   int nsimd = BlockSolverGrid->Nsimd();
   
-  std::vector<int> latt_phys(NN-1);
-  Coordinate simd_phys;
-  std::vector<int>  mpi_phys(NN-1);
-  Coordinate checker_dim_mask(NN-1);
-  int checker_dim=-1;
-
-  int dd;
+  std::vector<int> latt_phys(0);
+  std::vector<int> simd_phys(0);
+  std::vector<int>  mpi_phys(0);
+  
   for(int d=0;d<NN;d++){
     if( d!=Orthog ) { 
-      latt_phys[dd]=BlockSolverGrid->_fdimensions[d];
-      mpi_phys[dd] =BlockSolverGrid->_processors[d];
-      checker_dim_mask[dd] = BlockSolverGrid->_checker_dim_mask[d];
-      if ( d == BlockSolverGrid->_checker_dim ) checker_dim = dd;
-      dd++;
+      latt_phys.push_back(BlockSolverGrid->_fdimensions[d]);
+      simd_phys.push_back(BlockSolverGrid->_simd_layout[d]);
+      mpi_phys.push_back(BlockSolverGrid->_processors[d]);
     }
   }
-  simd_phys=GridDefaultSimd(latt_phys.size(),nsimd);
-  GridCartesian *tmp         = new GridCartesian(latt_phys,simd_phys,mpi_phys);
-  if(BlockSolverGrid->_isCheckerBoarded) {
-    GridRedBlackCartesian *ret = new GridRedBlackCartesian(tmp,checker_dim_mask,checker_dim);
-    delete tmp;
-    return (GridBase *) ret;
-  } else { 
-    return (GridBase *) tmp;
-  }
+  return (GridBase *)new GridCartesian(latt_phys,simd_phys,mpi_phys); 
 }
+*/
 
 template<class vobj>
 static void sliceMaddMatrix (Lattice<vobj> &R,Eigen::MatrixXcd &aa,const Lattice<vobj> &X,const Lattice<vobj> &Y,int Orthog,RealD scale=1.0) 
 {    
-  GridBase *FullGrid = X.Grid();
-  GridBase *SliceGrid = makeSubSliceGrid(FullGrid,Orthog);
-
-  Lattice<vobj> Ys(SliceGrid);
-  Lattice<vobj> Rs(SliceGrid);
-  Lattice<vobj> Xs(SliceGrid);
-  Lattice<vobj> RR(FullGrid);
-
-  RR = R; // Copies checkerboard for insert
-  
   typedef typename vobj::scalar_object sobj;
   typedef typename vobj::vector_type vector_type;
-  int Nslice = X.Grid()->GlobalDimensions()[Orthog];
-  for(int i=0;i<Nslice;i++){
-    ExtractSlice(Ys,Y,i,Orthog);
-    ExtractSlice(Rs,R,i,Orthog);
-    Rs=Ys;
-    for(int j=0;j<Nslice;j++){
-      ExtractSlice(Xs,X,j,Orthog);
-      Rs = Rs + Xs*(scale*aa(j,i));
-    }
-    InsertSlice(Rs,RR,i,Orthog);
+
+  int Nblock = X.Grid()->GlobalDimensions()[Orthog];
+
+  GridBase *FullGrid  = X.Grid();
+  //  GridBase *SliceGrid = makeSubSliceGrid(FullGrid,Orthog);
+
+  //  Lattice<vobj> Xslice(SliceGrid);
+  //  Lattice<vobj> Rslice(SliceGrid);
+
+  assert( FullGrid->_simd_layout[Orthog]==1);
+  //  int nh =  FullGrid->_ndimension;
+  //  int nl = SliceGrid->_ndimension;
+  //  int nl = nh-1;
+
+  //FIXME package in a convenient iterator
+  //Should loop over a plane orthogonal to direction "Orthog"
+  int stride=FullGrid->_slice_stride[Orthog];
+  int block =FullGrid->_slice_block [Orthog];
+  int nblock=FullGrid->_slice_nblock[Orthog];
+  int ostride=FullGrid->_ostride[Orthog];
+
+  autoView( X_v, X, CpuRead);
+  autoView( Y_v, Y, CpuRead);
+  autoView( R_v, R, CpuWrite);
+  thread_region
+  {
+    Vector<vobj> s_x(Nblock);
+
+    thread_for_collapse_in_region(2, n,nblock, {
+     for(int b=0;b<block;b++){
+      int o  = n*stride + b;
+
+      for(int i=0;i<Nblock;i++){
+	s_x[i] = X_v[o+i*ostride];
+      }
+
+      vobj dot;
+      for(int i=0;i<Nblock;i++){
+	dot = Y_v[o+i*ostride];
+	for(int j=0;j<Nblock;j++){
+	  dot = dot + s_x[j]*(scale*aa(j,i));
+	}
+	R_v[o+i*ostride]=dot;
+      }
+    }});
   }
-  R=RR; // Copy back handles arguments aliasing case
-  delete SliceGrid;
 };
 
 template<class vobj>
-static void sliceMulMatrix (Lattice<vobj> &R,Eigen::MatrixXcd &aa,const Lattice<vobj> &X,int Orthog,RealD scale=1.0)
-{
-  R=Zero();
-  sliceMaddMatrix(R,aa,X,R,Orthog,scale);
+static void sliceMulMatrix (Lattice<vobj> &R,Eigen::MatrixXcd &aa,const Lattice<vobj> &X,int Orthog,RealD scale=1.0) 
+{    
+  typedef typename vobj::scalar_object sobj;
+  typedef typename vobj::vector_type vector_type;
+
+  int Nblock = X.Grid()->GlobalDimensions()[Orthog];
+
+  GridBase *FullGrid  = X.Grid();
+  //  GridBase *SliceGrid = makeSubSliceGrid(FullGrid,Orthog);
+  //  Lattice<vobj> Xslice(SliceGrid);
+  //  Lattice<vobj> Rslice(SliceGrid);
+
+  assert( FullGrid->_simd_layout[Orthog]==1);
+  //  int nh =  FullGrid->_ndimension;
+  //  int nl = SliceGrid->_ndimension;
+  //  int nl=1;
+
+  //FIXME package in a convenient iterator
+  // thread_for2d_in_region
+  //Should loop over a plane orthogonal to direction "Orthog"
+  int stride=FullGrid->_slice_stride[Orthog];
+  int block =FullGrid->_slice_block [Orthog];
+  int nblock=FullGrid->_slice_nblock[Orthog];
+  int ostride=FullGrid->_ostride[Orthog];
+  autoView( R_v, R, CpuWrite);
+  autoView( X_v, X, CpuRead);
+  thread_region
+  {
+    std::vector<vobj> s_x(Nblock);
+
+
+    thread_for_collapse_in_region( 2 ,n,nblock,{
+    for(int b=0;b<block;b++){
+      int o  = n*stride + b;
+
+      for(int i=0;i<Nblock;i++){
+	s_x[i] = X_v[o+i*ostride];
+      }
+
+      vobj dot;
+      for(int i=0;i<Nblock;i++){
+	dot = s_x[0]*(scale*aa(0,i));
+	for(int j=1;j<Nblock;j++){
+	  dot = dot + s_x[j]*(scale*aa(j,i));
+	}
+	R_v[o+i*ostride]=dot;
+      }
+    }});
+  }
 };
 
 
 template<class vobj>
 static void sliceInnerProductMatrix(  Eigen::MatrixXcd &mat, const Lattice<vobj> &lhs,const Lattice<vobj> &rhs,int Orthog) 
 {
-  GridBase *SliceGrid = makeSubSliceGrid(lhs.Grid(),Orthog);
-
-  Lattice<vobj> ls(SliceGrid);
-  Lattice<vobj> rs(SliceGrid);
-  
   typedef typename vobj::scalar_object sobj;
   typedef typename vobj::vector_type vector_type;
-  int Nslice = lhs.Grid()->GlobalDimensions()[Orthog];
-  mat = Eigen::MatrixXcd::Zero(Nslice,Nslice);
-  for(int s=0;s<Nslice;s++){
-    ExtractSlice(ls,lhs,s,Orthog);
-    for(int ss=0;ss<Nslice;ss++){
-      ExtractSlice(rs,rhs,ss,Orthog);
-      mat(s,ss) = innerProduct(ls,rs);
-    }
+  
+  GridBase *FullGrid  = lhs.Grid();
+  //  GridBase *SliceGrid = makeSubSliceGrid(FullGrid,Orthog);
+  
+  int Nblock = FullGrid->GlobalDimensions()[Orthog];
+  
+  //  Lattice<vobj> Lslice(SliceGrid);
+  //  Lattice<vobj> Rslice(SliceGrid);
+  
+  mat = Eigen::MatrixXcd::Zero(Nblock,Nblock);
+
+  assert( FullGrid->_simd_layout[Orthog]==1);
+  //  int nh =  FullGrid->_ndimension;
+  //  int nl = SliceGrid->_ndimension;
+  //  int nl = nh-1;
+
+  //FIXME package in a convenient iterator
+  //Should loop over a plane orthogonal to direction "Orthog"
+  int stride=FullGrid->_slice_stride[Orthog];
+  int block =FullGrid->_slice_block [Orthog];
+  int nblock=FullGrid->_slice_nblock[Orthog];
+  int ostride=FullGrid->_ostride[Orthog];
+
+  typedef typename vobj::vector_typeD vector_typeD;
+
+  autoView( lhs_v, lhs, CpuRead);
+  autoView( rhs_v, rhs, CpuRead);
+  thread_region
+  {
+    std::vector<vobj> Left(Nblock);
+    std::vector<vobj> Right(Nblock);
+    Eigen::MatrixXcd  mat_thread = Eigen::MatrixXcd::Zero(Nblock,Nblock);
+
+    thread_for_collapse_in_region( 2, n,nblock,{
+    for(int b=0;b<block;b++){
+
+      int o  = n*stride + b;
+
+      for(int i=0;i<Nblock;i++){
+	Left [i] = lhs_v[o+i*ostride];
+	Right[i] = rhs_v[o+i*ostride];
+      }
+
+      for(int i=0;i<Nblock;i++){
+      for(int j=0;j<Nblock;j++){
+	auto tmp = innerProduct(Left[i],Right[j]);
+	auto rtmp = TensorRemove(tmp);
+	auto red  =  Reduce(rtmp);
+	mat_thread(i,j) += std::complex<double>(real(red),imag(red));
+      }}
+    }});
+    thread_critical
+    {
+      mat += mat_thread;
+    }  
   }
-  delete SliceGrid;
+
+  for(int i=0;i<Nblock;i++){
+  for(int j=0;j<Nblock;j++){
+    ComplexD sum = mat(i,j);
+    FullGrid->GlobalSum(sum);
+    mat(i,j)=sum;
+  }}
+
+  return;
 }
 
 NAMESPACE_END(Grid);

Grid/lattice/Lattice_reduction_gpu.h

@@ -214,12 +214,22 @@ inline typename vobj::scalar_objectD sumD_gpu_small(const vobj *lat, Integer osi
   // Move out of UVM
   // Turns out I had messed up the synchronise after move to compute stream
   // as running this on the default stream fools the synchronise
-  deviceVector<sobj> buffer(numBlocks);
+#undef UVM_BLOCK_BUFFER  
+#ifndef UVM_BLOCK_BUFFER  
+  commVector<sobj> buffer(numBlocks);
   sobj *buffer_v = &buffer[0];
   sobj result;
   reduceKernel<<< numBlocks, numThreads, smemSize, computeStream >>>(lat, buffer_v, size);
   accelerator_barrier();
   acceleratorCopyFromDevice(buffer_v,&result,sizeof(result));
+#else
+  Vector<sobj> buffer(numBlocks);
+  sobj *buffer_v = &buffer[0];
+  sobj result;
+  reduceKernel<<< numBlocks, numThreads, smemSize, computeStream >>>(lat, buffer_v, size);
+  accelerator_barrier();
+  result = *buffer_v;
+#endif
   return result;
 }
 
@@ -234,7 +244,7 @@ inline typename vobj::scalar_objectD sumD_gpu_large(const vobj *lat, Integer osi
   
   const int words = sizeof(vobj)/sizeof(vector);
 
-  deviceVector<vector> buffer(osites);
+  Vector<vector> buffer(osites);
   vector *dat = (vector *)lat;
   vector *buf = &buffer[0];
   iScalar<vector> *tbuf =(iScalar<vector> *)  &buffer[0];

Grid/lattice/Lattice_reduction_sycl.h

@@ -4,28 +4,33 @@ NAMESPACE_BEGIN(Grid);
 // Possibly promote to double and sum
 /////////////////////////////////////////////////////////////////////////////////////////////////////////
 
-
 template <class vobj>
 inline typename vobj::scalar_objectD sumD_gpu_tensor(const vobj *lat, Integer osites) 
 {
   typedef typename vobj::scalar_object sobj;
   typedef typename vobj::scalar_objectD sobjD;
-
+  static Vector<sobj> mysum;
+  mysum.resize(1);
+  sobj *mysum_p = & mysum[0];
   sobj identity; zeroit(identity);
-  sobj ret; zeroit(ret);
+  mysum[0] = identity;
+  sobj ret ; 
+
   Integer nsimd= vobj::Nsimd();
-  { 
-    sycl::buffer<sobj, 1> abuff(&ret, {1});
-    theGridAccelerator->submit([&](sycl::handler &cgh) {
-      auto Reduction = sycl::reduction(abuff,cgh,identity,std::plus<>());
-      cgh.parallel_for(sycl::range<1>{osites},
-                      Reduction,
-                      [=] (sycl::id<1> item, auto &sum) {
-                        auto osite   = item[0];
-                        sum +=Reduce(lat[osite]);
-                      });
-    });
-  }
+
+  const cl::sycl::property_list PropList ({ cl::sycl::property::reduction::initialize_to_identity() });
+  theGridAccelerator->submit([&](cl::sycl::handler &cgh) {
+    auto Reduction = cl::sycl::reduction(mysum_p,identity,std::plus<>(),PropList);
+     cgh.parallel_for(cl::sycl::range<1>{osites},
+		      Reduction,
+		      [=] (cl::sycl::id<1> item, auto &sum) {
+      auto osite   = item[0];
+      sum +=Reduce(lat[osite]);
+     });
+   });
+  theGridAccelerator->wait();
+  ret = mysum[0];
+  //  free(mysum,*theGridAccelerator);
   sobjD dret; convertType(dret,ret);
   return dret;
 }
@@ -71,22 +76,59 @@ inline typename vobj::scalar_object sum_gpu_large(const vobj *lat, Integer osite
 
 template<class Word> Word svm_xor(Word *vec,uint64_t L)
 {
+  Word xorResult; xorResult = 0;
+  static Vector<Word> d_sum;
+  d_sum.resize(1);
+  Word *d_sum_p=&d_sum[0];
   Word identity;  identity=0;
-  Word ret = 0;
-  { 
-    sycl::buffer<Word, 1> abuff(&ret, {1});
-    theGridAccelerator->submit([&](sycl::handler &cgh) {
-      auto Reduction = sycl::reduction(abuff,cgh,identity,std::bit_xor<>());
-      cgh.parallel_for(sycl::range<1>{L},
-                      Reduction,
-                      [=] (sycl::id<1> index, auto &sum) {
-                        sum ^=vec[index];
-                      });
-    });
-  }
+  d_sum[0] = identity;
+  const cl::sycl::property_list PropList ({ cl::sycl::property::reduction::initialize_to_identity() });
+  theGridAccelerator->submit([&](cl::sycl::handler &cgh) {
+    auto Reduction = cl::sycl::reduction(d_sum_p,identity,std::bit_xor<>(),PropList);
+     cgh.parallel_for(cl::sycl::range<1>{L},
+		      Reduction,
+		      [=] (cl::sycl::id<1> index, auto &sum) {
+	 sum^=vec[index];
+     });
+   });
   theGridAccelerator->wait();
+  Word ret = d_sum[0];
+  //  free(d_sum,*theGridAccelerator);
   return ret;
 }
 
 NAMESPACE_END(Grid);
 
+/*
+
+template <class vobj>
+inline typename vobj::scalar_objectD sumD_gpu_repack(const vobj *lat, Integer osites)
+{
+  typedef typename vobj::vector_type  vector;
+  typedef typename vobj::scalar_type  scalar;
+
+  typedef typename vobj::scalar_typeD scalarD;
+  typedef typename vobj::scalar_objectD sobjD;
+
+  sobjD ret;
+  scalarD *ret_p = (scalarD *)&ret;
+  
+  const int nsimd = vobj::Nsimd();
+  const int words = sizeof(vobj)/sizeof(vector);
+
+  Vector<scalar> buffer(osites*nsimd);
+  scalar *buf = &buffer[0];
+  vector *dat = (vector *)lat;
+
+  for(int w=0;w<words;w++) {
+
+    accelerator_for(ss,osites,nsimd,{
+	int lane = acceleratorSIMTlane(nsimd);
+	buf[ss*nsimd+lane] = dat[ss*words+w].getlane(lane);
+    });
+    //Precision change at this point is to late to gain precision
+    ret_p[w] = svm_reduce(buf,nsimd*osites);
+  }
+  return ret;
+}
+*/

Grid/lattice/Lattice_slicesum_core.h

@@ -21,18 +21,9 @@ NAMESPACE_BEGIN(Grid);
 
 
 #if defined(GRID_CUDA) || defined(GRID_HIP)
-template<class vobj>
-inline void sliceSumReduction_cub_small(const vobj *Data,
-					std::vector<vobj> &lvSum,
-					const int rd,
-					const int e1,
-					const int e2,
-					const int stride,
-					const int ostride,
-					const int Nsimd)
-{
+template<class vobj> inline void sliceSumReduction_cub_small(const vobj *Data, Vector<vobj> &lvSum, const int rd, const int e1, const int e2, const int stride, const int ostride, const int Nsimd) {
   size_t subvol_size = e1*e2;
-  deviceVector<vobj> reduction_buffer(rd*subvol_size);
+  commVector<vobj> reduction_buffer(rd*subvol_size);
   auto rb_p = &reduction_buffer[0];
   vobj zero_init;
   zeroit(zero_init);
@@ -103,15 +94,7 @@ inline void sliceSumReduction_cub_small(const vobj *Data,
 
 
 #if defined(GRID_SYCL)
-template<class vobj>
-inline void sliceSumReduction_sycl_small(const vobj *Data,
-					 std::vector <vobj> &lvSum,
-					 const int  &rd,
-					 const int &e1,
-					 const int &e2,
-					 const int &stride,
-					 const int &ostride,
-					 const int &Nsimd)
+template<class vobj> inline void sliceSumReduction_sycl_small(const vobj *Data, Vector <vobj> &lvSum, const int  &rd, const int &e1, const int &e2, const int &stride, const int &ostride, const int &Nsimd)
 {
   size_t subvol_size = e1*e2;
 
@@ -122,7 +105,7 @@ inline void sliceSumReduction_sycl_small(const vobj *Data,
     mysum[r] = vobj_zero; 
   }
 
-  deviceVector<vobj> reduction_buffer(rd*subvol_size);    
+  commVector<vobj> reduction_buffer(rd*subvol_size);    
 
   auto rb_p = &reduction_buffer[0];
 
@@ -141,11 +124,11 @@ inline void sliceSumReduction_sycl_small(const vobj *Data,
   });
 
   for (int r = 0; r < rd; r++) {
-      theGridAccelerator->submit([&](sycl::handler &cgh) {
-          auto Reduction = sycl::reduction(&mysum[r],std::plus<>());
-          cgh.parallel_for(sycl::range<1>{subvol_size},
+      theGridAccelerator->submit([&](cl::sycl::handler &cgh) {
+          auto Reduction = cl::sycl::reduction(&mysum[r],std::plus<>());
+          cgh.parallel_for(cl::sycl::range<1>{subvol_size},
           Reduction,
-          [=](sycl::id<1> item, auto &sum) {
+          [=](cl::sycl::id<1> item, auto &sum) {
               auto s = item[0];
               sum += rb_p[r*subvol_size+s];
           });
@@ -161,23 +144,14 @@ inline void sliceSumReduction_sycl_small(const vobj *Data,
 }
 #endif
 
-template<class vobj>
-inline void sliceSumReduction_large(const vobj *Data,
-				    std::vector<vobj> &lvSum,
-				    const int rd,
-				    const int e1,
-				    const int e2,
-				    const int stride,
-				    const int ostride,
-				    const int Nsimd)
-{
+template<class vobj> inline void sliceSumReduction_large(const vobj *Data, Vector<vobj> &lvSum, const int rd, const int e1, const int e2, const int stride, const int ostride, const int Nsimd) {
   typedef typename vobj::vector_type vector;
   const int words = sizeof(vobj)/sizeof(vector);
   const int osites = rd*e1*e2;
-  deviceVector<vector>buffer(osites);
+  commVector<vector>buffer(osites);
   vector *dat = (vector *)Data;
   vector *buf = &buffer[0];
-  std::vector<vector> lvSum_small(rd);
+  Vector<vector> lvSum_small(rd);
   vector *lvSum_ptr = (vector *)&lvSum[0];
 
   for (int w = 0; w < words; w++) {
@@ -194,18 +168,13 @@ inline void sliceSumReduction_large(const vobj *Data,
     for (int r = 0; r < rd; r++) {
       lvSum_ptr[w+words*r]=lvSum_small[r];
     }
+
   }
+
+  
 }
 
-template<class vobj>
-inline void sliceSumReduction_gpu(const Lattice<vobj> &Data,
-				  std::vector<vobj> &lvSum,
-				  const int rd,
-				  const int e1,
-				  const int e2,
-				  const int stride,
-				  const int ostride,
-				  const int Nsimd)
+template<class vobj> inline void sliceSumReduction_gpu(const Lattice<vobj> &Data, Vector<vobj> &lvSum, const int rd, const int e1, const int e2, const int stride, const int ostride, const int Nsimd)
 {
   autoView(Data_v, Data, AcceleratorRead); //reduction libraries cannot deal with large vobjs so we split into small/large case.
     if constexpr (sizeof(vobj) <= 256) { 
@@ -223,15 +192,7 @@ inline void sliceSumReduction_gpu(const Lattice<vobj> &Data,
 }
 
 
-template<class vobj>
-inline void sliceSumReduction_cpu(const Lattice<vobj> &Data,
-				  std::vector<vobj> &lvSum,
-				  const int &rd,
-				  const int &e1,
-				  const int &e2,
-				  const int &stride,
-				  const int &ostride,
-				  const int &Nsimd)
+template<class vobj> inline void sliceSumReduction_cpu(const Lattice<vobj> &Data, Vector<vobj> &lvSum, const int &rd, const int &e1, const int &e2, const int &stride, const int &ostride, const int &Nsimd)
 {
   // sum over reduced dimension planes, breaking out orthog dir
   // Parallel over orthog direction
@@ -247,20 +208,16 @@ inline void sliceSumReduction_cpu(const Lattice<vobj> &Data,
   });
 }
 
-template<class vobj> inline void sliceSumReduction(const Lattice<vobj> &Data,
-						   std::vector<vobj> &lvSum,
-						   const int &rd,
-						   const int &e1,
-						   const int &e2,
-						   const int &stride,
-						   const int &ostride,
-						   const int &Nsimd) 
+template<class vobj> inline void sliceSumReduction(const Lattice<vobj> &Data, Vector<vobj> &lvSum, const int &rd, const int &e1, const int &e2, const int &stride, const int &ostride, const int &Nsimd) 
 {
-#if defined(GRID_CUDA) || defined(GRID_HIP) || defined(GRID_SYCL)
+  #if defined(GRID_CUDA) || defined(GRID_HIP) || defined(GRID_SYCL)
+  
   sliceSumReduction_gpu(Data, lvSum, rd, e1, e2, stride, ostride, Nsimd);
-#else
+  
+  #else
   sliceSumReduction_cpu(Data, lvSum, rd, e1, e2, stride, ostride, Nsimd);
-#endif
+
+  #endif
 }
 
 

Grid/lattice/Lattice_transfer.h

@@ -42,50 +42,21 @@ inline void subdivides(GridBase *coarse,GridBase *fine)
     assert((fine->_rdimensions[d] / coarse->_rdimensions[d])* coarse->_rdimensions[d]==fine->_rdimensions[d]); 
   }
 }
-
  
 ////////////////////////////////////////////////////////////////////////////////////////////
 // remove and insert a half checkerboard
 ////////////////////////////////////////////////////////////////////////////////////////////
+
 template<class vobj> inline void pickCheckerboard(int cb,Lattice<vobj> &half,const Lattice<vobj> &full)
 {
-  half.Checkerboard() = cb;
-
-  autoView( half_v, half, CpuWrite);
-  autoView( full_v, full, CpuRead);
-  thread_for(ss, full.Grid()->oSites(),{
-    int cbos;
-    Coordinate coor;
-    full.Grid()->oCoorFromOindex(coor,ss);
-    cbos=half.Grid()->CheckerBoard(coor);
-
-    if (cbos==cb) {
-      int ssh=half.Grid()->oIndex(coor);
-      half_v[ssh] = full_v[ss];
-    }
-  });
+  acceleratorPickCheckerboard(cb,half,full);
 }
 template<class vobj> inline void setCheckerboard(Lattice<vobj> &full,const Lattice<vobj> &half)
 {
-  int cb = half.Checkerboard();
-  autoView( half_v , half, CpuRead);
-  autoView( full_v , full, CpuWrite);
-  thread_for(ss,full.Grid()->oSites(),{
-
-    Coordinate coor;
-    int cbos;
-
-    full.Grid()->oCoorFromOindex(coor,ss);
-    cbos=half.Grid()->CheckerBoard(coor);
-      
-    if (cbos==cb) {
-      int ssh=half.Grid()->oIndex(coor);
-      full_v[ss]=half_v[ssh];
-    }
-  });
+  acceleratorSetCheckerboard(full,half);
 }
 
-template<class vobj> inline void acceleratorPickCheckerboard(int cb,Lattice<vobj> &half,const Lattice<vobj> &full, int checker_dim_half=0)
+template<class vobj> inline void acceleratorPickCheckerboard(int cb,Lattice<vobj> &half,const Lattice<vobj> &full, int dummy=0)
 {
   half.Checkerboard() = cb;
   autoView(half_v, half, AcceleratorWrite);
@@ -95,6 +66,7 @@ template<class vobj> inline void acceleratorPickCheckerboard(int cb,Lattice<vobj
   unsigned long ndim_half          = half.Grid()->_ndimension;
   Coordinate checker_dim_mask_half = half.Grid()->_checker_dim_mask;
   Coordinate ostride_half          = half.Grid()->_ostride;
+  int checker_dim_half             = half.Grid()->CheckerDim();
   accelerator_for(ss, full.Grid()->oSites(),full.Grid()->Nsimd(),{
     
     Coordinate coor;
@@ -119,7 +91,7 @@ template<class vobj> inline void acceleratorPickCheckerboard(int cb,Lattice<vobj
     }
   });
 }
-template<class vobj> inline void acceleratorSetCheckerboard(Lattice<vobj> &full,const Lattice<vobj> &half, int checker_dim_half=0)
+template<class vobj> inline void acceleratorSetCheckerboard(Lattice<vobj> &full,const Lattice<vobj> &half, int dummy=0)
 {
   int cb = half.Checkerboard();
   autoView(half_v , half, AcceleratorRead);
@@ -129,6 +101,7 @@ template<class vobj> inline void acceleratorSetCheckerboard(Lattice<vobj> &full,
   unsigned long ndim_half          = half.Grid()->_ndimension;
   Coordinate checker_dim_mask_half = half.Grid()->_checker_dim_mask;
   Coordinate ostride_half          = half.Grid()->_ostride;
+  int checker_dim_half             = half.Grid()->CheckerDim();
   accelerator_for(ss,full.Grid()->oSites(),full.Grid()->Nsimd(),{
 
     Coordinate coor;
@@ -981,14 +954,8 @@ void InsertSlice(const Lattice<vobj> &lowDim,Lattice<vobj> & higherDim,int slice
     hcoor[orthog] = slice;
     for(int d=0;d<nh;d++){
       if ( d!=orthog ) { 
-	hcoor[d]=lcoor[ddl];
-	if ( hg->_checker_dim == d ) {
-	  hcoor[d]=hcoor[d]*2; // factor in the full coor for peekLocalSite
-	  lcoor[ddl]=lcoor[ddl]*2; // factor in the full coor for peekLocalSite
-	}
-	ddl++;
+	hcoor[d]=lcoor[ddl++];
       }
-      
     }
     peekLocalSite(s,lowDimv,lcoor);
     pokeLocalSite(s,higherDimv,hcoor);
@@ -1009,7 +976,6 @@ void ExtractSlice(Lattice<vobj> &lowDim,const Lattice<vobj> & higherDim,int slic
   assert(orthog<nh);
   assert(orthog>=0);
   assert(hg->_processors[orthog]==1);
-  lowDim.Checkerboard() = higherDim.Checkerboard();
 
   int dl; dl = 0;
   for(int d=0;d<nh;d++){
@@ -1027,16 +993,11 @@ void ExtractSlice(Lattice<vobj> &lowDim,const Lattice<vobj> & higherDim,int slic
     Coordinate lcoor(nl);
     Coordinate hcoor(nh);
     lg->LocalIndexToLocalCoor(idx,lcoor);
-    hcoor[orthog] = slice;
     int ddl=0;
+    hcoor[orthog] = slice;
     for(int d=0;d<nh;d++){
       if ( d!=orthog ) { 
-	hcoor[d]=lcoor[ddl];
-	if ( hg->_checker_dim == d ) {
-	  hcoor[d]=hcoor[d]*2;     // factor in the full gridd coor for peekLocalSite
-	  lcoor[ddl]=lcoor[ddl]*2; // factor in the full coor for peekLocalSite
-	}
-	ddl++;
+	hcoor[d]=lcoor[ddl++];
       }
     }
     peekLocalSite(s,higherDimv,hcoor);

Grid/lattice/PaddedCell.h

@@ -54,7 +54,7 @@ struct CshiftImplGauge: public CshiftImplBase<typename Gimpl::GaugeLinkField::ve
  *
  */
 
-template<class vobj> inline void ScatterSlice(const deviceVector<vobj> &buf,
+template<class vobj> inline void ScatterSlice(const cshiftVector<vobj> &buf,
 					      Lattice<vobj> &lat,
 					      int x,
 					      int dim,
@@ -140,7 +140,7 @@ template<class vobj> inline void ScatterSlice(const deviceVector<vobj> &buf,
   });
 }
 
-template<class vobj> inline void GatherSlice(deviceVector<vobj> &buf,
+template<class vobj> inline void GatherSlice(cshiftVector<vobj> &buf,
 					     const Lattice<vobj> &lat,
 					     int x,
 					     int dim,
@@ -462,19 +462,13 @@ public:
     int rNsimd = Nsimd / simd[dimension];
     assert( buffer_size == from.Grid()->_slice_nblock[dimension]*from.Grid()->_slice_block[dimension] / simd[dimension]);
 
-    static deviceVector<vobj> send_buf; 
-    static deviceVector<vobj> recv_buf;
+    static cshiftVector<vobj> send_buf; 
+    static cshiftVector<vobj> recv_buf;
     send_buf.resize(buffer_size*2*depth);    
     recv_buf.resize(buffer_size*2*depth);
-#ifndef ACCELERATOR_AWARE_MPI
-    static hostVector<vobj> hsend_buf; 
-    static hostVector<vobj> hrecv_buf;
-    hsend_buf.resize(buffer_size*2*depth);    
-    hrecv_buf.resize(buffer_size*2*depth);
-#endif    
 
-    std::vector<MpiCommsRequest_t> fwd_req;   
-    std::vector<MpiCommsRequest_t> bwd_req;   
+    std::vector<CommsRequest_t> fwd_req;   
+    std::vector<CommsRequest_t> bwd_req;   
 
     int words = buffer_size;
     int bytes = words * sizeof(vobj);
@@ -501,17 +495,9 @@ public:
       t_gather+=usecond()-t;
 
       t=usecond();
-#ifdef ACCELERATOR_AWARE_MPI
       grid->SendToRecvFromBegin(fwd_req,
 				(void *)&send_buf[d*buffer_size], xmit_to_rank,
 				(void *)&recv_buf[d*buffer_size], recv_from_rank, bytes, tag);
-#else
-      acceleratorCopyFromDevice(&send_buf[d*buffer_size],&hsend_buf[d*buffer_size],bytes);
-      grid->SendToRecvFromBegin(fwd_req,
-				(void *)&hsend_buf[d*buffer_size], xmit_to_rank,
-				(void *)&hrecv_buf[d*buffer_size], recv_from_rank, bytes, tag);
-      acceleratorCopyToDevice(&hrecv_buf[d*buffer_size],&recv_buf[d*buffer_size],bytes);
-#endif
       t_comms+=usecond()-t;
      }
     for ( int d=0;d < depth ; d ++ ) {
@@ -522,17 +508,9 @@ public:
       t_gather+= usecond() - t;
 
       t=usecond();
-#ifdef ACCELERATOR_AWARE_MPI
       grid->SendToRecvFromBegin(bwd_req,
 				(void *)&send_buf[(d+depth)*buffer_size], recv_from_rank,
 				(void *)&recv_buf[(d+depth)*buffer_size], xmit_to_rank, bytes,tag);
-#else
-      acceleratorCopyFromDevice(&send_buf[(d+depth)*buffer_size],&hsend_buf[(d+depth)*buffer_size],bytes);
-      grid->SendToRecvFromBegin(bwd_req,
-				(void *)&hsend_buf[(d+depth)*buffer_size], recv_from_rank,
-				(void *)&hrecv_buf[(d+depth)*buffer_size], xmit_to_rank, bytes,tag);
-      acceleratorCopyToDevice(&hrecv_buf[(d+depth)*buffer_size],&recv_buf[(d+depth)*buffer_size],bytes);
-#endif      
       t_comms+=usecond()-t;
     }
 

Grid/qcd/action/ActionBase.h

@@ -98,7 +98,7 @@ public:
   virtual RealD S(const GaugeField& U) = 0;                             // evaluate the action
   virtual RealD Sinitial(const GaugeField& U) { return this->S(U); } ;  // if the refresh computes the action, can cache it. Alternately refreshAndAction() ?
   virtual void deriv(const GaugeField& U, GaugeField& dSdU) = 0;        // evaluate the action derivative
- 
+
   /////////////////////////////////////////////////////////////
   // virtual smeared interface through configuration container
   /////////////////////////////////////////////////////////////
@@ -132,10 +132,6 @@ public:
 template <class GaugeField >
 class EmptyAction : public Action <GaugeField>
 {
-  using Action<GaugeField>::refresh;
-  using Action<GaugeField>::Sinitial;
-  using Action<GaugeField>::deriv;
-
   virtual void refresh(const GaugeField& U, GridSerialRNG &sRNG, GridParallelRNG& pRNG) { assert(0);}; // refresh pseudofermions
   virtual RealD S(const GaugeField& U) { return 0.0;};                             // evaluate the action
   virtual void deriv(const GaugeField& U, GaugeField& dSdU) { assert(0); };        // evaluate the action derivative

Grid/qcd/action/fermion/AbstractEOFAFermion.h

@@ -55,11 +55,6 @@ public:
   RealD alpha; // Mobius scale
   RealD k;     // EOFA normalization constant
 
-  // Device resident
-  deviceVector<Coeff_t> d_shift_coefficients;
-  deviceVector<Coeff_t> d_MooeeInv_shift_lc;
-  deviceVector<Coeff_t> d_MooeeInv_shift_norm;
-  
   virtual void Instantiatable(void) = 0;
 
   // EOFA-specific operations
@@ -97,11 +92,6 @@ public:
     this->k = this->alpha * (_mq3-_mq2) * std::pow(this->alpha+1.0,2*Ls) /
       ( std::pow(this->alpha+1.0,Ls) + _mq2*std::pow(this->alpha-1.0,Ls) ) /
       ( std::pow(this->alpha+1.0,Ls) + _mq3*std::pow(this->alpha-1.0,Ls) );
-    
-    d_shift_coefficients.resize(Ls);
-    d_MooeeInv_shift_lc.resize(Ls);
-    d_MooeeInv_shift_norm.resize(Ls);
-
   };
 };
 

Grid/qcd/action/fermion/CayleyFermion5D.h

@@ -90,16 +90,16 @@ public:
   void M5D(const FermionField &psi,
 	   const FermionField &phi,
 	   FermionField &chi,
-	   std::vector<Coeff_t> &lower,
-	   std::vector<Coeff_t> &diag,
-	   std::vector<Coeff_t> &upper);
+	   Vector<Coeff_t> &lower,
+	   Vector<Coeff_t> &diag,
+	   Vector<Coeff_t> &upper);
 
   void M5Ddag(const FermionField &psi,
 	      const FermionField &phi,
 	      FermionField &chi,
-	      std::vector<Coeff_t> &lower,
-	      std::vector<Coeff_t> &diag,
-	      std::vector<Coeff_t> &upper);
+	      Vector<Coeff_t> &lower,
+	      Vector<Coeff_t> &diag,
+	      Vector<Coeff_t> &upper);
 
   virtual void   Instantiatable(void)=0;
 
@@ -119,51 +119,35 @@ public:
   RealD mass_plus, mass_minus;
 
   // Save arguments to SetCoefficientsInternal
-  std::vector<Coeff_t> _gamma;
+  Vector<Coeff_t> _gamma;
   RealD                _zolo_hi;
   RealD                _b;
   RealD                _c;
 
-  // possible boost
-  std::vector<ComplexD> qmu;
-  void set_qmu(std::vector<ComplexD> _qmu) { qmu=_qmu; assert(qmu.size()==Nd);};
-  void addQmu(const FermionField &in, FermionField &out, int dag);
-  
   // Cayley form Moebius (tanh and zolotarev)
-  std::vector<Coeff_t> omega;
-  std::vector<Coeff_t> bs;    // S dependent coeffs
-  std::vector<Coeff_t> cs;
-  std::vector<Coeff_t> as;
+  Vector<Coeff_t> omega;
+  Vector<Coeff_t> bs;    // S dependent coeffs
+  Vector<Coeff_t> cs;
+  Vector<Coeff_t> as;
   // For preconditioning Cayley form
-  std::vector<Coeff_t> bee;
-  std::vector<Coeff_t> cee;
-  std::vector<Coeff_t> aee;
-  std::vector<Coeff_t> beo;
-  std::vector<Coeff_t> ceo;
-  std::vector<Coeff_t> aeo;
+  Vector<Coeff_t> bee;
+  Vector<Coeff_t> cee;
+  Vector<Coeff_t> aee;
+  Vector<Coeff_t> beo;
+  Vector<Coeff_t> ceo;
+  Vector<Coeff_t> aeo;
   // LDU factorisation of the eeoo matrix
-  std::vector<Coeff_t> lee;
-  std::vector<Coeff_t> leem;
-  std::vector<Coeff_t> uee;
-  std::vector<Coeff_t> ueem;
-  std::vector<Coeff_t> dee;
-
-  // Device memory
-  deviceVector<Coeff_t> d_diag;
-  deviceVector<Coeff_t> d_upper;
-  deviceVector<Coeff_t> d_lower;
-
-  deviceVector<Coeff_t> d_lee;
-  deviceVector<Coeff_t> d_dee;
-  deviceVector<Coeff_t> d_uee;
-  deviceVector<Coeff_t> d_leem;
-  deviceVector<Coeff_t> d_ueem;
+  Vector<Coeff_t> lee;
+  Vector<Coeff_t> leem;
+  Vector<Coeff_t> uee;
+  Vector<Coeff_t> ueem;
+  Vector<Coeff_t> dee;
 
   // Matrices of 5d ee inverse params
-  //  std::vector<iSinglet<Simd> >  MatpInv;
-  //  std::vector<iSinglet<Simd> >  MatmInv;
-  //  std::vector<iSinglet<Simd> >  MatpInvDag;
-  //  std::vector<iSinglet<Simd> >  MatmInvDag;
+  Vector<iSinglet<Simd> >  MatpInv;
+  Vector<iSinglet<Simd> >  MatmInv;
+  Vector<iSinglet<Simd> >  MatpInvDag;
+  Vector<iSinglet<Simd> >  MatmInvDag;
 
   ///////////////////////////////////////////////////////////////
   // Conserved current utilities
@@ -203,7 +187,7 @@ public:
 protected:
   virtual void SetCoefficientsZolotarev(RealD zolohi,Approx::zolotarev_data *zdata,RealD b,RealD c);
   virtual void SetCoefficientsTanh(Approx::zolotarev_data *zdata,RealD b,RealD c);
-  virtual void SetCoefficientsInternal(RealD zolo_hi,std::vector<Coeff_t> & gamma,RealD b,RealD c);
+  virtual void SetCoefficientsInternal(RealD zolo_hi,Vector<Coeff_t> & gamma,RealD b,RealD c);
 };
 
 NAMESPACE_END(Grid);

Grid/qcd/action/fermion/ContinuedFractionFermion5D.h

@@ -60,50 +60,6 @@ public:
   //      virtual void   Instantiatable(void)=0;
   virtual void   Instantiatable(void) =0;
 
-  void FreePropagator(const FermionField &in,FermionField &out,RealD mass,std::vector<Complex> boundary, std::vector<double> twist)
-  {
-    std::cout << "Free Propagator for PartialFraction"<<std::endl;
-    FermionField in_k(in.Grid());
-    FermionField prop_k(in.Grid());
-    
-    FFT theFFT((GridCartesian *) in.Grid());
-
-    //phase for boundary condition
-    ComplexField coor(in.Grid());
-    ComplexField ph(in.Grid());  ph = Zero();
-    FermionField in_buf(in.Grid()); in_buf = Zero();
-    typedef typename Simd::scalar_type Scalar;
-    Scalar ci(0.0,1.0);
-    assert(twist.size() == Nd);//check that twist is Nd
-    assert(boundary.size() == Nd);//check that boundary conditions is Nd
-    int shift = 0;
-    for(unsigned int nu = 0; nu < Nd; nu++)
-      {
-	// Shift coordinate lattice index by 1 to account for 5th dimension.
-	LatticeCoordinate(coor, nu + shift);
-	double boundary_phase = ::acos(real(boundary[nu]));
-	ph = ph + boundary_phase*coor*((1./(in.Grid()->_fdimensions[nu+shift])));
-	//momenta for propagator shifted by twist+boundary
-	twist[nu] = twist[nu] + boundary_phase/((2.0*M_PI));
-      }
-    in_buf = exp(ci*ph*(-1.0))*in;
-
-    theFFT.FFT_all_dim(in_k,in,FFT::forward);
-    this->MomentumSpacePropagatorHw(prop_k,in_k,mass,twist);
-    theFFT.FFT_all_dim(out,prop_k,FFT::backward);
-    
-    //phase for boundary condition
-    out = out * exp(ci*ph);
-  };
-
-  virtual void FreePropagator(const FermionField &in,FermionField &out,RealD mass) {
-    std::vector<double> twist(Nd,0.0); //default: periodic boundarys in all directions
-    std::vector<Complex> boundary;
-    for(int i=0;i<Nd;i++) boundary.push_back(1);//default: periodic boundary conditions
-    FreePropagator(in,out,mass,boundary,twist);
-  };
-
-  
   // Efficient support for multigrid coarsening
   virtual void  Mdir (const FermionField &in, FermionField &out,int dir,int disp);
   virtual void  MdirAll(const FermionField &in, std::vector<FermionField> &out);
@@ -134,12 +90,12 @@ protected:
   RealD mass;
   RealD R;
   RealD ZoloHiInv;
-  std::vector<double> Beta;
-  std::vector<double> cc;;
-  std::vector<double> cc_d;;
-  std::vector<double> sqrt_cc;
-  std::vector<double> See;
-  std::vector<double> Aee;
+  Vector<double> Beta;
+  Vector<double> cc;;
+  Vector<double> cc_d;;
+  Vector<double> sqrt_cc;
+  Vector<double> See;
+  Vector<double> Aee;
 
 };
 

Grid/qcd/action/fermion/DomainWallEOFAFermion.h

@@ -69,10 +69,10 @@ public:
   // Instantiate different versions depending on Impl
   /////////////////////////////////////////////////////
   void M5D(const FermionField& psi, const FermionField& phi, FermionField& chi,
-	   std::vector<Coeff_t>& lower, std::vector<Coeff_t>& diag, std::vector<Coeff_t>& upper);
+	   Vector<Coeff_t>& lower, Vector<Coeff_t>& diag, Vector<Coeff_t>& upper);
 
   void M5Ddag(const FermionField& psi, const FermionField& phi, FermionField& chi,
-	      std::vector<Coeff_t>& lower, std::vector<Coeff_t>& diag, std::vector<Coeff_t>& upper);
+	      Vector<Coeff_t>& lower, Vector<Coeff_t>& diag, Vector<Coeff_t>& upper);
 
   virtual void RefreshShiftCoefficients(RealD new_shift);
 
@@ -83,7 +83,7 @@ public:
 			RealD _M5, const ImplParams& p=ImplParams());
 
 protected:
-  void SetCoefficientsInternal(RealD zolo_hi, std::vector<Coeff_t>& gamma, RealD b, RealD c);
+  void SetCoefficientsInternal(RealD zolo_hi, Vector<Coeff_t>& gamma, RealD b, RealD c);
 };
 
 NAMESPACE_END(Grid);

Grid/qcd/action/fermion/ImprovedStaggeredFermion.h

@@ -102,11 +102,11 @@ public:
 		     GaugeField &mat, 
 		     const FermionField &A, const FermionField &B, int dag);
 
-  void DhopInternal(StencilImpl &st, DoubledGaugeField &U,DoubledGaugeField &UUU,
+  void DhopInternal(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,DoubledGaugeField &UUU,
                     const FermionField &in, FermionField &out, int dag);
-  void DhopInternalSerialComms(StencilImpl &st, DoubledGaugeField &U,DoubledGaugeField &UUU,
+  void DhopInternalSerialComms(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,DoubledGaugeField &UUU,
                     const FermionField &in, FermionField &out, int dag);
-  void DhopInternalOverlappedComms(StencilImpl &st, DoubledGaugeField &U,DoubledGaugeField &UUU,
+  void DhopInternalOverlappedComms(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,DoubledGaugeField &UUU,
                     const FermionField &in, FermionField &out, int dag);
 
   //////////////////////////////////////////////////////////////////////////
@@ -164,6 +164,8 @@ public:
   DoubledGaugeField UUUmuEven;
   DoubledGaugeField UUUmuOdd;
 
+  LebesgueOrder Lebesgue;
+  LebesgueOrder LebesgueEvenOdd;
   
   ///////////////////////////////////////////////////////////////
   // Conserved current utilities

Grid/qcd/action/fermion/ImprovedStaggeredFermion5D.h

@@ -100,6 +100,7 @@ public:
 		     int dag);
     
   void DhopInternal(StencilImpl & st,
+		    LebesgueOrder &lo,
 		    DoubledGaugeField &U,
 		    DoubledGaugeField &UUU,
 		    const FermionField &in, 
@@ -107,6 +108,7 @@ public:
 		    int dag);
     
     void DhopInternalOverlappedComms(StencilImpl & st,
+		      LebesgueOrder &lo,
 		      DoubledGaugeField &U,
 		      DoubledGaugeField &UUU,
 		      const FermionField &in, 
@@ -114,6 +116,7 @@ public:
 		      int dag);
 
     void DhopInternalSerialComms(StencilImpl & st,
+		      LebesgueOrder &lo,
 		      DoubledGaugeField &U,
 		      DoubledGaugeField &UUU,
 		      const FermionField &in, 
@@ -189,6 +192,8 @@ public:
   DoubledGaugeField UUUmuEven;
   DoubledGaugeField UUUmuOdd;
     
+  LebesgueOrder Lebesgue;
+  LebesgueOrder LebesgueEvenOdd;
     
   // Comms buffer
   //  std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  comm_buf;

Grid/qcd/action/fermion/MobiusEOFAFermion.h

@@ -42,11 +42,11 @@ public:
 
 public:
   // Shift operator coefficients for red-black preconditioned Mobius EOFA
-  std::vector<Coeff_t> Mooee_shift;
-  std::vector<Coeff_t> MooeeInv_shift_lc;
-  std::vector<Coeff_t> MooeeInv_shift_norm;
-  std::vector<Coeff_t> MooeeInvDag_shift_lc;
-  std::vector<Coeff_t> MooeeInvDag_shift_norm;
+  Vector<Coeff_t> Mooee_shift;
+  Vector<Coeff_t> MooeeInv_shift_lc;
+  Vector<Coeff_t> MooeeInv_shift_norm;
+  Vector<Coeff_t> MooeeInvDag_shift_lc;
+  Vector<Coeff_t> MooeeInvDag_shift_norm;
 
   virtual void Instantiatable(void) {};
 
@@ -74,18 +74,18 @@ public:
   // Instantiate different versions depending on Impl
   /////////////////////////////////////////////////////
   void M5D(const FermionField& psi, const FermionField& phi, FermionField& chi,
-	   std::vector<Coeff_t>& lower, std::vector<Coeff_t>& diag, std::vector<Coeff_t>& upper);
+	   Vector<Coeff_t>& lower, Vector<Coeff_t>& diag, Vector<Coeff_t>& upper);
 
   void M5D_shift(const FermionField& psi, const FermionField& phi, FermionField& chi,
-		 std::vector<Coeff_t>& lower, std::vector<Coeff_t>& diag, std::vector<Coeff_t>& upper,
-		 std::vector<Coeff_t>& shift_coeffs);
+		 Vector<Coeff_t>& lower, Vector<Coeff_t>& diag, Vector<Coeff_t>& upper,
+		 Vector<Coeff_t>& shift_coeffs);
 
   void M5Ddag(const FermionField& psi, const FermionField& phi, FermionField& chi,
-	      std::vector<Coeff_t>& lower, std::vector<Coeff_t>& diag, std::vector<Coeff_t>& upper);
+	      Vector<Coeff_t>& lower, Vector<Coeff_t>& diag, Vector<Coeff_t>& upper);
 
   void M5Ddag_shift(const FermionField& psi, const FermionField& phi, FermionField& chi,
-		    std::vector<Coeff_t>& lower, std::vector<Coeff_t>& diag, std::vector<Coeff_t>& upper,
-		    std::vector<Coeff_t>& shift_coeffs);
+		    Vector<Coeff_t>& lower, Vector<Coeff_t>& diag, Vector<Coeff_t>& upper,
+		    Vector<Coeff_t>& shift_coeffs);
 
   virtual void RefreshShiftCoefficients(RealD new_shift);
 

Grid/qcd/action/fermion/NaiveStaggeredFermion.h

@@ -102,11 +102,11 @@ public:
 		     GaugeField &mat, 
 		     const FermionField &A, const FermionField &B, int dag);
 
-  void DhopInternal(StencilImpl &st, DoubledGaugeField &U,
+  void DhopInternal(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,
                     const FermionField &in, FermionField &out, int dag);
-  void DhopInternalSerialComms(StencilImpl &st, DoubledGaugeField &U,
+  void DhopInternalSerialComms(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,
 			       const FermionField &in, FermionField &out, int dag);
-  void DhopInternalOverlappedComms(StencilImpl &st, DoubledGaugeField &U,
+  void DhopInternalOverlappedComms(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,
 				   const FermionField &in, FermionField &out, int dag);
 
   //////////////////////////////////////////////////////////////////////////
@@ -152,6 +152,9 @@ public:
   DoubledGaugeField UmuEven;
   DoubledGaugeField UmuOdd;
 
+  LebesgueOrder Lebesgue;
+  LebesgueOrder LebesgueEvenOdd;
+  
   ///////////////////////////////////////////////////////////////
   // Conserved current utilities
   ///////////////////////////////////////////////////////////////

Grid/qcd/action/fermion/OverlapWilsonCayleyTanhFermion.h

@@ -42,7 +42,7 @@ public:
 
      void  MomentumSpacePropagator(FermionField &out,const FermionField &in,RealD _m,std::vector<double> twist) {
        this->MomentumSpacePropagatorHw(out,in,_m,twist);
-     };
+  };
 
   // Constructors
   OverlapWilsonCayleyTanhFermion(GaugeField &_Umu,

Grid/qcd/action/fermion/OverlapWilsonCayleyZolotarevFermion.h

@@ -41,10 +41,6 @@ public:
 public:
 
   // Constructors
-  virtual void   Instantiatable(void){};
-  void  MomentumSpacePropagator(FermionField &out,const FermionField &in,RealD _m,std::vector<double> twist) {
-    this->MomentumSpacePropagatorHw(out,in,_m,twist);
-  };
 
   OverlapWilsonCayleyZolotarevFermion(GaugeField &_Umu,
 				      GridCartesian         &FiveDimGrid,

Grid/qcd/action/fermion/OverlapWilsonContfracTanhFermion.h

@@ -41,9 +41,6 @@ public:
 public:
 
   virtual void   Instantiatable(void){};
-  void  MomentumSpacePropagator(FermionField &out,const FermionField &in,RealD _m,std::vector<double> twist) {
-    this->MomentumSpacePropagatorHw(out,in,_m,twist);
-  };
   // Constructors
   OverlapWilsonContFracTanhFermion(GaugeField &_Umu,
 				   GridCartesian         &FiveDimGrid,

Grid/qcd/action/fermion/OverlapWilsonContfracZolotarevFermion.h

@@ -40,9 +40,6 @@ public:
   INHERIT_IMPL_TYPES(Impl);
 
   virtual void   Instantiatable(void){};
-  void  MomentumSpacePropagator(FermionField &out,const FermionField &in,RealD _m,std::vector<double> twist) {
-    this->MomentumSpacePropagatorHw(out,in,_m,twist);
-  };
   // Constructors
   OverlapWilsonContFracZolotarevFermion(GaugeField &_Umu,
 					GridCartesian         &FiveDimGrid,

Grid/qcd/action/fermion/OverlapWilsonPartialFractionTanhFermion.h

@@ -41,9 +41,6 @@ public:
 public:
 
   virtual void   Instantiatable(void){};
-  void  MomentumSpacePropagator(FermionField &out,const FermionField &in,RealD _m,std::vector<double> twist) {
-    this->MomentumSpacePropagatorHw(out,in,_m,twist);
-  };
   // Constructors
   OverlapWilsonPartialFractionTanhFermion(GaugeField &_Umu,
 					  GridCartesian         &FiveDimGrid,

Grid/qcd/action/fermion/OverlapWilsonPartialFractionZolotarevFermion.h

@@ -40,11 +40,6 @@ public:
   INHERIT_IMPL_TYPES(Impl);
 
   virtual void   Instantiatable(void){};
-
-  void  MomentumSpacePropagator(FermionField &out,const FermionField &in,RealD _m,std::vector<double> twist) {
-    this->MomentumSpacePropagatorHw(out,in,_m,twist);
-  };
-
   // Constructors
   OverlapWilsonPartialFractionZolotarevFermion(GaugeField &_Umu,
 					       GridCartesian         &FiveDimGrid,

Grid/qcd/action/fermion/PartialFractionFermion5D.h

@@ -39,7 +39,7 @@ class PartialFractionFermion5D : public WilsonFermion5D<Impl>
 public:
   INHERIT_IMPL_TYPES(Impl);
 
-  const int part_frac_chroma_convention=0;
+  const int part_frac_chroma_convention=1;
 
   void   Meooe_internal(const FermionField &in, FermionField &out,int dag);
   void   Mooee_internal(const FermionField &in, FermionField &out,int dag);
@@ -83,78 +83,19 @@ public:
 			   GridRedBlackCartesian &FourDimRedBlackGrid,
 			   RealD _mass,RealD M5,const ImplParams &p= ImplParams());
 
-  PartialFractionFermion5D(GaugeField &_Umu,
-			   GridCartesian         &FiveDimGrid,
-			   GridRedBlackCartesian &FiveDimRedBlackGrid,
-			   GridCartesian         &FourDimGrid,
-			   GridRedBlackCartesian &FourDimRedBlackGrid,
-			   RealD _mass,RealD M5,std::vector<RealD> &_qmu,const ImplParams &p= ImplParams());
-
-  void FreePropagator(const FermionField &in,FermionField &out,RealD mass,std::vector<Complex> boundary, std::vector<double> twist)
-  {
-    std::cout << "Free Propagator for PartialFraction"<<std::endl;
-    FermionField in_k(in.Grid());
-    FermionField prop_k(in.Grid());
-    
-    FFT theFFT((GridCartesian *) in.Grid());
-
-    //phase for boundary condition
-    ComplexField coor(in.Grid());
-    ComplexField ph(in.Grid());  ph = Zero();
-    FermionField in_buf(in.Grid()); in_buf = Zero();
-    typedef typename Simd::scalar_type Scalar;
-    Scalar ci(0.0,1.0);
-    assert(twist.size() == Nd);//check that twist is Nd
-    assert(boundary.size() == Nd);//check that boundary conditions is Nd
-    int shift = 0;
-    for(unsigned int nu = 0; nu < Nd; nu++)
-      {
-	// Shift coordinate lattice index by 1 to account for 5th dimension.
-	LatticeCoordinate(coor, nu + shift);
-	double boundary_phase = ::acos(real(boundary[nu]));
-	ph = ph + boundary_phase*coor*((1./(in.Grid()->_fdimensions[nu+shift])));
-	//momenta for propagator shifted by twist+boundary
-	twist[nu] = twist[nu] + boundary_phase/((2.0*M_PI));
-      }
-    in_buf = exp(ci*ph*(-1.0))*in;
-
-    theFFT.FFT_all_dim(in_k,in,FFT::forward);
-    if ( this->qmu.size() ){
-      this->MomentumSpacePropagatorHwQ(prop_k,in_k,mass,twist,this->qmu);
-    } else {
-      this->MomentumSpacePropagatorHw(prop_k,in_k,mass,twist);
-    }
-    theFFT.FFT_all_dim(out,prop_k,FFT::backward);
-    
-    //phase for boundary condition
-    out = out * exp(ci*ph);
-  };
-
-  virtual void FreePropagator(const FermionField &in,FermionField &out,RealD mass) {
-    std::vector<double> twist(Nd,0.0); //default: periodic boundarys in all directions
-    std::vector<Complex> boundary;
-    for(int i=0;i<Nd;i++) boundary.push_back(1);//default: periodic boundary conditions
-    FreePropagator(in,out,mass,boundary,twist);
-  };
-
-  void set_qmu(std::vector<RealD> _qmu) { qmu=_qmu; assert(qmu.size()==Nd);};
-  void addQmu(const FermionField &in, FermionField &out, int dag);
-
 protected:
 
   virtual void SetCoefficientsTanh(Approx::zolotarev_data *zdata,RealD scale);
   virtual void SetCoefficientsZolotarev(RealD zolo_hi,Approx::zolotarev_data *zdata);
 
-  std::vector<RealD> qmu;
-
   // Part frac
   RealD mass;
   RealD dw_diag;
   RealD R;
   RealD amax;
   RealD scale;
-  std::vector<double> p; 
-  std::vector<double> q;
+  Vector<double> p; 
+  Vector<double> q;
 
 };
 

Grid/qcd/action/fermion/SchurDiagTwoKappa.h

@@ -35,7 +35,7 @@ template<class Matrix, class Field>
 class KappaSimilarityTransform {
 public:
   INHERIT_IMPL_TYPES(Matrix);
-  std::vector<Coeff_t> kappa, kappaDag, kappaInv, kappaInvDag;
+  Vector<Coeff_t> kappa, kappaDag, kappaInv, kappaInvDag;
 
   KappaSimilarityTransform (Matrix &zmob) {
     for (int i=0;i<(int)zmob.bs.size();i++) {

Grid/qcd/action/fermion/StaggeredKernels.h

@@ -49,10 +49,10 @@ template<class Impl> class StaggeredKernels : public FermionOperator<Impl> , pub
    
  public:
 
-  void DhopImproved(StencilImpl &st,
+  void DhopImproved(StencilImpl &st, LebesgueOrder &lo, 
 		    DoubledGaugeField &U, DoubledGaugeField &UUU, 
 		    const FermionField &in, FermionField &out, int dag, int interior,int exterior);
-  void DhopNaive(StencilImpl &st,
+  void DhopNaive(StencilImpl &st, LebesgueOrder &lo, 
 		 DoubledGaugeField &U,
 		 const FermionField &in, FermionField &out, int dag, int interior,int exterior);
   

Grid/qcd/action/fermion/WilsonCompressor.h

@@ -47,7 +47,7 @@ public:
   static int PartialCompressionFactor(GridBase *grid) { return 1;}
 #endif
   template<class vobj,class cobj,class compressor>
-  static void Gather_plane_simple (deviceVector<std::pair<int,int> >& table,
+  static void Gather_plane_simple (commVector<std::pair<int,int> >& table,
 				   const Lattice<vobj> &rhs,
 				   cobj *buffer,
 				   compressor &compress,
@@ -109,7 +109,7 @@ public:
   // Reorder the fifth dim to be s=Ls-1 , s=0, s=1,...,Ls-2.
   ////////////////////////////////////////////////////////////////////////////////////////////
   template<class vobj,class cobj,class compressor>
-  static void Gather_plane_exchange(deviceVector<std::pair<int,int> >& table,const Lattice<vobj> &rhs,
+  static void Gather_plane_exchange(commVector<std::pair<int,int> >& table,const Lattice<vobj> &rhs,
 				    std::vector<cobj *> pointers,int dimension,int plane,int cbmask,
 				    compressor &compress,int type,int partial)
   {
@@ -197,7 +197,7 @@ public:
 #endif
   
   template<class vobj,class cobj,class compressor>
-  static void Gather_plane_simple (deviceVector<std::pair<int,int> >& table,
+  static void Gather_plane_simple (commVector<std::pair<int,int> >& table,
 					 const Lattice<vobj> &rhs,
 					 cobj *buffer,
 					 compressor &compress,
@@ -208,7 +208,7 @@ public:
     else        FaceGatherSimple::Gather_plane_simple(table,rhs,buffer,compress,off,so,partial);
   }
   template<class vobj,class cobj,class compressor>
-  static void Gather_plane_exchange(deviceVector<std::pair<int,int> >& table,const Lattice<vobj> &rhs,
+  static void Gather_plane_exchange(commVector<std::pair<int,int> >& table,const Lattice<vobj> &rhs,
 				    std::vector<cobj *> pointers,int dimension,int plane,int cbmask,
 				    compressor &compress,int type,int partial)
   {
@@ -402,6 +402,7 @@ public:
 
   typedef CartesianStencil<vobj,cobj,Parameters> Base;
   typedef typename Base::View_type View_type;
+  typedef typename Base::StencilVector StencilVector;
 
   //  Vector<int> surface_list;
   WilsonStencil(GridBase *grid,
@@ -414,6 +415,29 @@ public:
     //    surface_list.resize(0);
     this->same_node.resize(npoints);
   };
+
+  /*
+  void BuildSurfaceList(int Ls,int vol4){
+
+    // find same node for SHM
+    // Here we know the distance is 1 for WilsonStencil
+    for(int point=0;point<this->_npoints;point++){
+      this->same_node[point] = this->SameNode(point);
+    }
+    
+    for(int site = 0 ;site< vol4;site++){
+      int local = 1;
+      for(int point=0;point<this->_npoints;point++){
+	if( (!this->GetNodeLocal(site*Ls,point)) && (!this->same_node[point]) ){ 
+	  local = 0;
+	}
+      }
+      if(local == 0) { 
+	surface_list.push_back(site);
+      }
+    }
+  }
+  */
   
   template < class compressor>
   void HaloExchangeOpt(const Lattice<vobj> &source,compressor &compress) 
@@ -484,11 +508,6 @@ public:
     this->face_table_computed=1;
     assert(this->u_comm_offset==this->_unified_buffer_size);
     accelerator_barrier();
-#ifdef NVLINK_GET
-    this->_grid->StencilBarrier(); // He can now get mu local gather, I can get his
-    // Synch shared memory on a single nodes; could use an asynchronous barrier here and defer check
-    // Or issue barrier AFTER the DMA is running
-#endif    
   }
 
 };

Grid/qcd/action/fermion/WilsonFermion.h

@@ -126,17 +126,14 @@ public:
   void DerivInternal(StencilImpl &st, DoubledGaugeField &U, GaugeField &mat,
                      const FermionField &A, const FermionField &B, int dag);
 
-  void DhopInternal(StencilImpl &st,
-		    DoubledGaugeField &U,
+  void DhopInternal(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,
                     const FermionField &in, FermionField &out, int dag);
 
-  void DhopInternalSerial(StencilImpl &st,
-			  DoubledGaugeField &U,
-			  const FermionField &in, FermionField &out, int dag);
+  void DhopInternalSerial(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,
+                    const FermionField &in, FermionField &out, int dag);
 
-  void DhopInternalOverlappedComms(StencilImpl &st,
-				   DoubledGaugeField &U,
-				   const FermionField &in, FermionField &out, int dag);
+  void DhopInternalOverlappedComms(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,
+                    const FermionField &in, FermionField &out, int dag);
 
   // Constructor
   WilsonFermion(GaugeField &_Umu, GridCartesian &Fgrid,
@@ -171,6 +168,9 @@ public:
   DoubledGaugeField UmuEven;
   DoubledGaugeField UmuOdd;
 
+  LebesgueOrder Lebesgue;
+  LebesgueOrder LebesgueEvenOdd;
+
   WilsonAnisotropyCoefficients anisotropyCoeff;
 
   ///////////////////////////////////////////////////////////////

Grid/qcd/action/fermion/WilsonFermion5D.h

@@ -109,8 +109,6 @@ public:
   void MomentumSpacePropagatorHt_5d(FermionField &out,const FermionField &in,RealD mass,std::vector<double> twist) ;
   void MomentumSpacePropagatorHt(FermionField &out,const FermionField &in,RealD mass,std::vector<double> twist) ;
   void MomentumSpacePropagatorHw(FermionField &out,const FermionField &in,RealD mass,std::vector<double> twist) ;
-  void MomentumSpacePropagatorHwQ(FermionField &out,const FermionField &in,RealD mass,std::vector<double> twist,
-				  std::vector<double> qmu) ;
 
   // Implement hopping term non-hermitian hopping term; half cb or both
   // Implement s-diagonal DW
@@ -119,9 +117,6 @@ public:
   void DhopOE(const FermionField &in, FermionField &out,int dag);
   void DhopEO(const FermionField &in, FermionField &out,int dag);
 
-  void DhopComms  (const FermionField &in, FermionField &out);
-  void DhopCalc   (const FermionField &in, FermionField &out,uint64_t *ids);
-  
   // add a DhopComm
   // -- suboptimal interface will presently trigger multiple comms.
   void DhopDir(const FermionField &in, FermionField &out,int dir,int disp);
@@ -140,18 +135,21 @@ public:
 		     int dag);
     
   void DhopInternal(StencilImpl & st,
+		    LebesgueOrder &lo,
 		    DoubledGaugeField &U,
 		    const FermionField &in, 
 		    FermionField &out,
 		    int dag);
 
   void DhopInternalOverlappedComms(StencilImpl & st,
+				   LebesgueOrder &lo,
 				   DoubledGaugeField &U,
 				   const FermionField &in, 
 				   FermionField &out,
 				   int dag);
 
   void DhopInternalSerialComms(StencilImpl & st,
+			       LebesgueOrder &lo,
 			       DoubledGaugeField &U,
 			       const FermionField &in, 
 			       FermionField &out,
@@ -205,6 +203,9 @@ public:
   DoubledGaugeField UmuEven;
   DoubledGaugeField UmuOdd;
     
+  LebesgueOrder Lebesgue;
+  LebesgueOrder LebesgueEvenOdd;
+    
   // Comms buffer
   //  std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  comm_buf;
 

Grid/qcd/action/fermion/WilsonKernels.h

@@ -57,10 +57,6 @@ public:
 			 int Ls, int Nsite, const FermionField &in, FermionField &out,
 			 int interior=1,int exterior=1) ;
 
-  static void DhopKernel(int Opt,StencilImpl &st,  DoubledGaugeField &U, SiteHalfSpinor * buf,
-			 int Ls, int Nsite, const FermionField &in, FermionField &out,
-			 uint64_t *ids);
-  
   static void DhopDagKernel(int Opt,StencilImpl &st,  DoubledGaugeField &U, SiteHalfSpinor * buf,
 			    int Ls, int Nsite, const FermionField &in, FermionField &out,
 			    int interior=1,int exterior=1) ;

Grid/qcd/action/fermion/ZMobiusFermion.h

@@ -58,7 +58,7 @@ public:
   {
     //    RealD eps = 1.0;
     std::cout<<GridLogMessage << "ZMobiusFermion (b="<<b<<",c="<<c<<") with Ls= "<<this->Ls<<" gamma passed in"<<std::endl;
-    std::vector<Coeff_t> zgamma(this->Ls);
+    Vector<Coeff_t> zgamma(this->Ls);
     for(int s=0;s<this->Ls;s++){
       zgamma[s] = gamma[s];
     }

Grid/qcd/action/fermion/implementation/CayleyFermion5DImplementation.h

@@ -48,8 +48,7 @@ CayleyFermion5D<Impl>::CayleyFermion5D(GaugeField &_Umu,
 			FourDimGrid,
 			FourDimRedBlackGrid,_M5,p),
   mass_plus(_mass), mass_minus(_mass)
-{
-  // qmu defaults to zero size;
+{ 
 }
 
 ///////////////////////////////////////////////////////////////
@@ -157,18 +156,18 @@ template<class Impl>
 void CayleyFermion5D<Impl>::M5D   (const FermionField &psi, FermionField &chi)
 {
   int Ls=this->Ls;
-  std::vector<Coeff_t> diag (Ls,1.0);
-  std::vector<Coeff_t> upper(Ls,-1.0); upper[Ls-1]=mass_minus;
-  std::vector<Coeff_t> lower(Ls,-1.0); lower[0]   =mass_plus;
+  Vector<Coeff_t> diag (Ls,1.0);
+  Vector<Coeff_t> upper(Ls,-1.0); upper[Ls-1]=mass_minus;
+  Vector<Coeff_t> lower(Ls,-1.0); lower[0]   =mass_plus;
   M5D(psi,chi,chi,lower,diag,upper);
 }
 template<class Impl>
 void CayleyFermion5D<Impl>::Meooe5D    (const FermionField &psi, FermionField &Din)
 {
   int Ls=this->Ls;
-  std::vector<Coeff_t> diag = bs;
-  std::vector<Coeff_t> upper= cs;
-  std::vector<Coeff_t> lower= cs; 
+  Vector<Coeff_t> diag = bs;
+  Vector<Coeff_t> upper= cs;
+  Vector<Coeff_t> lower= cs; 
   upper[Ls-1]=-mass_minus*upper[Ls-1];
   lower[0]   =-mass_plus*lower[0];
   M5D(psi,psi,Din,lower,diag,upper);
@@ -177,9 +176,9 @@ void CayleyFermion5D<Impl>::Meooe5D    (const FermionField &psi, FermionField &D
 template<class Impl> void CayleyFermion5D<Impl>::Meo5D     (const FermionField &psi, FermionField &chi)
 {
   int Ls=this->Ls;
-  std::vector<Coeff_t> diag = beo;
-  std::vector<Coeff_t> upper(Ls);
-  std::vector<Coeff_t> lower(Ls);
+  Vector<Coeff_t> diag = beo;
+  Vector<Coeff_t> upper(Ls);
+  Vector<Coeff_t> lower(Ls);
   for(int i=0;i<Ls;i++) {
     upper[i]=-ceo[i];
     lower[i]=-ceo[i];
@@ -192,9 +191,9 @@ template<class Impl>
 void CayleyFermion5D<Impl>::Mooee       (const FermionField &psi, FermionField &chi)
 {
   int Ls=this->Ls;
-  std::vector<Coeff_t> diag = bee;
-  std::vector<Coeff_t> upper(Ls);
-  std::vector<Coeff_t> lower(Ls);
+  Vector<Coeff_t> diag = bee;
+  Vector<Coeff_t> upper(Ls);
+  Vector<Coeff_t> lower(Ls);
   for(int i=0;i<Ls;i++) {
     upper[i]=-cee[i];
     lower[i]=-cee[i];
@@ -207,9 +206,9 @@ template<class Impl>
 void CayleyFermion5D<Impl>::MooeeDag    (const FermionField &psi, FermionField &chi)
 {
   int Ls=this->Ls;
-  std::vector<Coeff_t> diag = bee;
-  std::vector<Coeff_t> upper(Ls);
-  std::vector<Coeff_t> lower(Ls);
+  Vector<Coeff_t> diag = bee;
+  Vector<Coeff_t> upper(Ls);
+  Vector<Coeff_t> lower(Ls);
 
   for (int s=0;s<Ls;s++){
     // Assemble the 5d matrix
@@ -237,9 +236,9 @@ template<class Impl>
 void CayleyFermion5D<Impl>::M5Ddag (const FermionField &psi, FermionField &chi)
 {
   int Ls=this->Ls;
-  std::vector<Coeff_t> diag(Ls,1.0);
-  std::vector<Coeff_t> upper(Ls,-1.0);
-  std::vector<Coeff_t> lower(Ls,-1.0);
+  Vector<Coeff_t> diag(Ls,1.0);
+  Vector<Coeff_t> upper(Ls,-1.0);
+  Vector<Coeff_t> lower(Ls,-1.0);
   upper[Ls-1]=-mass_plus*upper[Ls-1];
   lower[0]   =-mass_minus*lower[0];
   M5Ddag(psi,chi,chi,lower,diag,upper);
@@ -249,9 +248,9 @@ template<class Impl>
 void CayleyFermion5D<Impl>::MeooeDag5D    (const FermionField &psi, FermionField &Din)
 {
   int Ls=this->Ls;
-  std::vector<Coeff_t> diag =bs;
-  std::vector<Coeff_t> upper=cs;
-  std::vector<Coeff_t> lower=cs; 
+  Vector<Coeff_t> diag =bs;
+  Vector<Coeff_t> upper=cs;
+  Vector<Coeff_t> lower=cs; 
 
   for (int s=0;s<Ls;s++){
     if ( s== 0 ) {
@@ -271,34 +270,6 @@ void CayleyFermion5D<Impl>::MeooeDag5D    (const FermionField &psi, FermionField
   M5Ddag(psi,psi,Din,lower,diag,upper);
 }
 
-template<class Impl>
-void CayleyFermion5D<Impl>::addQmu(const FermionField &psi,FermionField &chi, int dag)
-{
-  if ( qmu.size() ) {
-
-    Gamma::Algebra Gmu [] = {
-      Gamma::Algebra::GammaX,
-      Gamma::Algebra::GammaY,
-      Gamma::Algebra::GammaZ,
-      Gamma::Algebra::GammaT
-    };
-    std::vector<ComplexD> coeff(Nd);
-    ComplexD ci(0,1);
-
-    assert(qmu.size()==Nd);
-
-    for(int mu=0;mu<Nd;mu++){
-       coeff[mu] = ci*qmu[mu];
-       if ( dag ) coeff[mu] = conjugate(coeff[mu]);
-    }
-
-    chi = chi + Gamma(Gmu[0])*psi*coeff[0];
-    for(int mu=1;mu<Nd;mu++){
-      chi = chi + Gamma(Gmu[mu])*psi*coeff[mu];
-    }
-  }
-}
-
 template<class Impl>
 void CayleyFermion5D<Impl>::M    (const FermionField &psi, FermionField &chi)
 {
@@ -306,12 +277,8 @@ void CayleyFermion5D<Impl>::M    (const FermionField &psi, FermionField &chi)
   
   // Assemble Din
   Meooe5D(psi,Din);
-
-  this->DW(Din,chi,DaggerNo);
-
-  // add i q_mu gamma_mu here
-  addQmu(Din,chi,DaggerNo);
   
+  this->DW(Din,chi,DaggerNo);
   // ((b D_W + D_w hop terms +1) on s-diag
   axpby(chi,1.0,1.0,chi,psi); 
   
@@ -328,9 +295,6 @@ void CayleyFermion5D<Impl>::Mdag (const FermionField &psi, FermionField &chi)
   FermionField Din(psi.Grid());
   // Apply Dw
   this->DW(psi,Din,DaggerYes); 
-
-  // add -i conj(q_mu) gamma_mu here ... if qmu is real, gammm_5 hermitian, otherwise not.
-  addQmu(psi,Din,DaggerYes);
   
   MeooeDag5D(Din,chi);
   
@@ -430,7 +394,7 @@ void CayleyFermion5D<Impl>::MeoDeriv(GaugeField &mat,const FermionField &U,const
 template<class Impl>
 void CayleyFermion5D<Impl>::SetCoefficientsTanh(Approx::zolotarev_data *zdata,RealD b,RealD c)
 {
-  std::vector<Coeff_t> gamma(this->Ls);
+  Vector<Coeff_t> gamma(this->Ls);
   for(int s=0;s<this->Ls;s++) gamma[s] = zdata->gamma[s];
   SetCoefficientsInternal(1.0,gamma,b,c);
 }
@@ -438,13 +402,13 @@ void CayleyFermion5D<Impl>::SetCoefficientsTanh(Approx::zolotarev_data *zdata,Re
 template<class Impl>
 void CayleyFermion5D<Impl>::SetCoefficientsZolotarev(RealD zolo_hi,Approx::zolotarev_data *zdata,RealD b,RealD c)
 {
-  std::vector<Coeff_t> gamma(this->Ls);
+  Vector<Coeff_t> gamma(this->Ls);
   for(int s=0;s<this->Ls;s++) gamma[s] = zdata->gamma[s];
   SetCoefficientsInternal(zolo_hi,gamma,b,c);
 }
 //Zolo
 template<class Impl>
-void CayleyFermion5D<Impl>::SetCoefficientsInternal(RealD zolo_hi,std::vector<Coeff_t> & gamma,RealD b,RealD c)
+void CayleyFermion5D<Impl>::SetCoefficientsInternal(RealD zolo_hi,Vector<Coeff_t> & gamma,RealD b,RealD c)
 {
   int Ls=this->Ls;
 
@@ -524,7 +488,7 @@ void CayleyFermion5D<Impl>::SetCoefficientsInternal(RealD zolo_hi,std::vector<Co
   leem.resize(Ls);
   uee.resize(Ls);
   ueem.resize(Ls);
-
+  
   for(int i=0;i<Ls;i++){
     
     dee[i] = bee[i];
@@ -565,18 +529,6 @@ void CayleyFermion5D<Impl>::SetCoefficientsInternal(RealD zolo_hi,std::vector<Co
     dee[Ls-1] += delta_d;
   }  
 
-  //////////////////////////////////////////
-  // Device buffers
-  //////////////////////////////////////////
-  d_diag.resize(Ls);
-  d_upper.resize(Ls);
-  d_lower.resize(Ls);
-
-  d_dee.resize(Ls);
-  d_lee.resize(Ls);
-  d_uee.resize(Ls);
-  d_leem.resize(Ls);
-  d_ueem.resize(Ls);
   //  int inv=1;
   //  this->MooeeInternalCompute(0,inv,MatpInv,MatmInv);
   //  this->MooeeInternalCompute(1,inv,MatpInvDag,MatmInvDag);

Grid/qcd/action/fermion/implementation/CayleyFermion5Dcache.h

@@ -43,9 +43,9 @@ void
 CayleyFermion5D<Impl>::M5D(const FermionField &psi_i,
 			       const FermionField &phi_i, 
 			       FermionField &chi_i,
-			       std::vector<Coeff_t> &lower,
-			       std::vector<Coeff_t> &diag,
-			       std::vector<Coeff_t> &upper)
+			       Vector<Coeff_t> &lower,
+			       Vector<Coeff_t> &diag,
+			       Vector<Coeff_t> &upper)
 {
   
   chi_i.Checkerboard()=psi_i.Checkerboard();
@@ -55,15 +55,11 @@ CayleyFermion5D<Impl>::M5D(const FermionField &psi_i,
   autoView(chi , chi_i,AcceleratorWrite);
   assert(phi.Checkerboard() == psi.Checkerboard());
 
-  int Ls =this->Ls;
+  auto pdiag = &diag[0];
+  auto pupper = &upper[0];
+  auto plower = &lower[0];
 
-  acceleratorCopyToDevice(&diag[0] ,&this->d_diag[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&upper[0],&this->d_upper[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&lower[0],&this->d_lower[0],Ls*sizeof(Coeff_t));
-  
-  auto pdiag = &d_diag[0];
-  auto pupper = &d_upper[0];
-  auto plower = &d_lower[0];
+  int Ls =this->Ls;
 
   // 10 = 3 complex mult + 2 complex add
   // Flops = 10.0*(Nc*Ns) *Ls*vol (/2 for red black counting)
@@ -86,9 +82,9 @@ void
 CayleyFermion5D<Impl>::M5Ddag(const FermionField &psi_i,
 			      const FermionField &phi_i, 
 			      FermionField &chi_i,
-			      std::vector<Coeff_t> &lower,
-			      std::vector<Coeff_t> &diag,
-			      std::vector<Coeff_t> &upper)
+			      Vector<Coeff_t> &lower,
+			      Vector<Coeff_t> &diag,
+			      Vector<Coeff_t> &upper)
 {
   chi_i.Checkerboard()=psi_i.Checkerboard();
   GridBase *grid=psi_i.Grid();
@@ -97,15 +93,11 @@ CayleyFermion5D<Impl>::M5Ddag(const FermionField &psi_i,
   autoView(chi , chi_i,AcceleratorWrite);
   assert(phi.Checkerboard() == psi.Checkerboard());
 
-  int Ls=this->Ls;
+  auto pdiag = &diag[0];
+  auto pupper = &upper[0];
+  auto plower = &lower[0];
 
-  acceleratorCopyToDevice(&diag[0] ,&this->d_diag[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&upper[0],&this->d_upper[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&lower[0],&this->d_lower[0],Ls*sizeof(Coeff_t));
-  
-  auto pdiag = &d_diag[0];
-  auto pupper = &d_upper[0];
-  auto plower = &d_lower[0];
+  int Ls=this->Ls;
 
   // Flops = 6.0*(Nc*Ns) *Ls*vol
   uint64_t nloop = grid->oSites();
@@ -134,17 +126,11 @@ CayleyFermion5D<Impl>::MooeeInv    (const FermionField &psi_i, FermionField &chi
 
   int Ls=this->Ls;
 
-  acceleratorCopyToDevice(&lee[0],&d_lee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&dee[0],&d_dee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&uee[0],&d_uee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&leem[0],&d_leem[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&ueem[0],&d_ueem[0],Ls*sizeof(Coeff_t));
-
-  auto plee  = & d_lee [0];
-  auto pdee  = & d_dee [0];
-  auto puee  = & d_uee [0];
-  auto pleem = & d_leem[0];
-  auto pueem = & d_ueem[0];
+  auto plee  = & lee [0];
+  auto pdee  = & dee [0];
+  auto puee  = & uee [0];
+  auto pleem = & leem[0];
+  auto pueem = & ueem[0];
 
   uint64_t nloop = grid->oSites()/Ls;
   accelerator_for(sss,nloop,Simd::Nsimd(),{
@@ -196,17 +182,11 @@ CayleyFermion5D<Impl>::MooeeInvDag (const FermionField &psi_i, FermionField &chi
   autoView(psi , psi_i,AcceleratorRead);
   autoView(chi , chi_i,AcceleratorWrite);
 
-  acceleratorCopyToDevice(&lee[0],&d_lee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&dee[0],&d_dee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&uee[0],&d_uee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&leem[0],&d_leem[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&ueem[0],&d_ueem[0],Ls*sizeof(Coeff_t));
-
-  auto plee  = & d_lee [0];
-  auto pdee  = & d_dee [0];
-  auto puee  = & d_uee [0];
-  auto pleem = & d_leem[0];
-  auto pueem = & d_ueem[0];
+  auto plee  = & lee [0];
+  auto pdee  = & dee [0];
+  auto puee  = & uee [0];
+  auto pleem = & leem[0];
+  auto pueem = & ueem[0];
 
   assert(psi.Checkerboard() == psi.Checkerboard());
 

Grid/qcd/action/fermion/implementation/CayleyFermion5Dvec.h

@@ -1,5 +1,3 @@
-#if 0
-
 /*************************************************************************************
 
     Grid physics library, www.github.com/paboyle/Grid 
@@ -820,5 +818,3 @@ CayleyFermion5D<Impl>::MooeeInternal(const FermionField &psi, FermionField &chi,
 }
 
 NAMESPACE_END(Grid);
-
-#endif

Grid/qcd/action/fermion/implementation/ContinuedFractionFermion5DImplementation.h

@@ -42,13 +42,13 @@ template<class Impl>
 void ContinuedFractionFermion5D<Impl>::SetCoefficientsZolotarev(RealD zolo_hi,Approx::zolotarev_data *zdata)
 {
   // How to check Ls matches??
-  std::cout<<GridLogMessage << zdata->n  << " - n"<<std::endl;
-  std::cout<<GridLogMessage << zdata->da << " -da "<<std::endl;
-  std::cout<<GridLogMessage << zdata->db << " -db"<<std::endl;
-  std::cout<<GridLogMessage << zdata->dn << " -dn"<<std::endl;
-  std::cout<<GridLogMessage << zdata->dd << " -dd"<<std::endl;
+  //      std::cout<<GridLogMessage << Ls << " Ls"<<std::endl;
+  //      std::cout<<GridLogMessage << zdata->n  << " - n"<<std::endl;
+  //      std::cout<<GridLogMessage << zdata->da << " -da "<<std::endl;
+  //      std::cout<<GridLogMessage << zdata->db << " -db"<<std::endl;
+  //      std::cout<<GridLogMessage << zdata->dn << " -dn"<<std::endl;
+  //      std::cout<<GridLogMessage << zdata->dd << " -dd"<<std::endl;
   int Ls = this->Ls;
-  std::cout<<GridLogMessage << Ls << " Ls"<<std::endl;
   assert(zdata->db==Ls);// Beta has Ls coeffs
 
   R=(1+this->mass)/(1-this->mass);
@@ -320,7 +320,7 @@ ContinuedFractionFermion5D<Impl>::ContinuedFractionFermion5D(
       int Ls = this->Ls;
       conformable(solution5d.Grid(),this->FermionGrid());
       conformable(exported4d.Grid(),this->GaugeGrid());
-      ExtractSlice(exported4d, solution5d, Ls-1, 0);
+      ExtractSlice(exported4d, solution5d, Ls-1, Ls-1);
     }
     template<class Impl>
     void ContinuedFractionFermion5D<Impl>::ImportPhysicalFermionSource(const FermionField &input4d,FermionField &imported5d)
@@ -330,7 +330,7 @@ ContinuedFractionFermion5D<Impl>::ContinuedFractionFermion5D(
       conformable(input4d.Grid()   ,this->GaugeGrid());
       FermionField tmp(this->FermionGrid());
       tmp=Zero();
-      InsertSlice(input4d, tmp, Ls-1, 0);
+      InsertSlice(input4d, tmp, Ls-1, Ls-1);
       tmp=Gamma(Gamma::Algebra::Gamma5)*tmp;
       this->Dminus(tmp,imported5d);
     }

Grid/qcd/action/fermion/implementation/DomainWallEOFAFermionCache.h

@@ -41,7 +41,7 @@ NAMESPACE_BEGIN(Grid);
 // Pplus  backwards..
 template<class Impl>
 void DomainWallEOFAFermion<Impl>::M5D(const FermionField& psi_i, const FermionField& phi_i,FermionField& chi_i, 
-				      std::vector<Coeff_t>& lower, std::vector<Coeff_t>& diag, std::vector<Coeff_t>& upper)
+				      Vector<Coeff_t>& lower, Vector<Coeff_t>& diag, Vector<Coeff_t>& upper)
 {
   chi_i.Checkerboard() = psi_i.Checkerboard();
   int Ls = this->Ls;
@@ -50,15 +50,9 @@ void DomainWallEOFAFermion<Impl>::M5D(const FermionField& psi_i, const FermionFi
   autoView( psi , psi_i, AcceleratorRead);
   autoView( chi , chi_i, AcceleratorWrite);
   assert(phi.Checkerboard() == psi.Checkerboard());
-
-  auto pdiag  = &this->d_diag[0];
-  auto pupper = &this->d_upper[0];
-  auto plower = &this->d_lower[0];
-
-  acceleratorCopyToDevice(&diag[0],&pdiag[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&upper[0],&pupper[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&lower[0],&plower[0],Ls*sizeof(Coeff_t));
-
+  auto pdiag = &diag[0];
+  auto pupper = &upper[0];
+  auto plower = &lower[0];
   // Flops = 6.0*(Nc*Ns) *Ls*vol
   
   auto nloop=grid->oSites()/Ls;
@@ -79,7 +73,7 @@ void DomainWallEOFAFermion<Impl>::M5D(const FermionField& psi_i, const FermionFi
 
 template<class Impl>
 void DomainWallEOFAFermion<Impl>::M5Ddag(const FermionField& psi_i, const FermionField& phi_i, FermionField& chi_i, 
-					 std::vector<Coeff_t>& lower, std::vector<Coeff_t>& diag, std::vector<Coeff_t>& upper)
+					 Vector<Coeff_t>& lower, Vector<Coeff_t>& diag, Vector<Coeff_t>& upper)
 {
   chi_i.Checkerboard() = psi_i.Checkerboard();
   GridBase* grid = psi_i.Grid();
@@ -89,14 +83,9 @@ void DomainWallEOFAFermion<Impl>::M5Ddag(const FermionField& psi_i, const Fermio
   autoView( phi , phi_i, AcceleratorRead);
   autoView( chi , chi_i, AcceleratorWrite);
   assert(phi.Checkerboard() == psi.Checkerboard());
-  
-  auto pdiag  = &this->d_diag[0];
-  auto pupper = &this->d_upper[0];
-  auto plower = &this->d_lower[0];
-
-  acceleratorCopyToDevice(&diag[0] ,&pdiag[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&upper[0],&pupper[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&lower[0],&plower[0],Ls*sizeof(Coeff_t));
+  auto pdiag = &diag[0];
+  auto pupper = &upper[0];
+  auto plower = &lower[0];
 
   // Flops = 6.0*(Nc*Ns) *Ls*vol
 
@@ -125,17 +114,12 @@ void DomainWallEOFAFermion<Impl>::MooeeInv(const FermionField& psi_i, FermionFie
   autoView( chi, chi_i, AcceleratorWrite);
   int Ls = this->Ls;
 
-  auto plee  = & this->d_lee [0];
-  auto pdee  = & this->d_dee [0];
-  auto puee  = & this->d_uee [0];
-  auto pleem = & this->d_leem[0];
-  auto pueem = & this->d_ueem[0];
-  
-  acceleratorCopyToDevice(&this->lee[0],&plee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->dee[0],&pdee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->uee[0],&puee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->leem[0],&pleem[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->ueem[0],&pueem[0],Ls*sizeof(Coeff_t));
+  auto plee  = & this->lee[0];
+  auto pdee  = & this->dee[0];
+  auto puee  = & this->uee[0];
+
+  auto pleem = & this->leem[0];
+  auto pueem = & this->ueem[0];
 
   uint64_t nloop=grid->oSites()/Ls;
   accelerator_for(sss,nloop,Simd::Nsimd(),{

Grid/qcd/action/fermion/implementation/DomainWallEOFAFermionImplementation.h

@@ -131,9 +131,9 @@ void DomainWallEOFAFermion<Impl>::M5D(const FermionField& psi, FermionField& chi
     else{ shiftm = -shift*(mq3-mq2); }
   }
 
-  std::vector<Coeff_t> diag(Ls,1.0);
-  std::vector<Coeff_t> upper(Ls,-1.0); upper[Ls-1] = mq1 + shiftm;
-  std::vector<Coeff_t> lower(Ls,-1.0); lower[0]    = mq1 + shiftp;
+  Vector<Coeff_t> diag(Ls,1.0);
+  Vector<Coeff_t> upper(Ls,-1.0); upper[Ls-1] = mq1 + shiftm;
+  Vector<Coeff_t> lower(Ls,-1.0); lower[0]    = mq1 + shiftp;
 
 #if(0)
   std::cout << GridLogMessage << "DomainWallEOFAFermion::M5D(FF&,FF&):" << std::endl;
@@ -168,9 +168,9 @@ void DomainWallEOFAFermion<Impl>::M5Ddag(const FermionField& psi, FermionField&
     else{ shiftm = -shift*(mq3-mq2); }
   }
 
-  std::vector<Coeff_t> diag(Ls,1.0);
-  std::vector<Coeff_t> upper(Ls,-1.0); upper[Ls-1] = mq1 + shiftp;
-  std::vector<Coeff_t> lower(Ls,-1.0); lower[0]    = mq1 + shiftm;
+  Vector<Coeff_t> diag(Ls,1.0);
+  Vector<Coeff_t> upper(Ls,-1.0); upper[Ls-1] = mq1 + shiftp;
+  Vector<Coeff_t> lower(Ls,-1.0); lower[0]    = mq1 + shiftm;
 
   this->M5Ddag(psi, chi, chi, lower, diag, upper);
 }
@@ -181,9 +181,9 @@ void DomainWallEOFAFermion<Impl>::Mooee(const FermionField& psi, FermionField& c
 {
   int Ls = this->Ls;
 
-  std::vector<Coeff_t> diag = this->bee;
-  std::vector<Coeff_t> upper(Ls);
-  std::vector<Coeff_t> lower(Ls);
+  Vector<Coeff_t> diag = this->bee;
+  Vector<Coeff_t> upper(Ls);
+  Vector<Coeff_t> lower(Ls);
 
   for(int s=0; s<Ls; s++){
     upper[s] = -this->cee[s];
@@ -200,9 +200,9 @@ void DomainWallEOFAFermion<Impl>::MooeeDag(const FermionField& psi, FermionField
 {
   int Ls = this->Ls;
 
-  std::vector<Coeff_t> diag = this->bee;
-  std::vector<Coeff_t> upper(Ls);
-  std::vector<Coeff_t> lower(Ls);
+  Vector<Coeff_t> diag = this->bee;
+  Vector<Coeff_t> upper(Ls);
+  Vector<Coeff_t> lower(Ls);
 
   for(int s=0; s<Ls; s++){
     upper[s] = -this->cee[s];
@@ -218,7 +218,7 @@ void DomainWallEOFAFermion<Impl>::MooeeDag(const FermionField& psi, FermionField
 
 //Zolo
 template<class Impl>
-void DomainWallEOFAFermion<Impl>::SetCoefficientsInternal(RealD zolo_hi, std::vector<Coeff_t>& gamma, RealD b, RealD c)
+void DomainWallEOFAFermion<Impl>::SetCoefficientsInternal(RealD zolo_hi, Vector<Coeff_t>& gamma, RealD b, RealD c)
 {
   int   Ls    = this->Ls;
   int   pm    = this->pm;

Grid/qcd/action/fermion/implementation/ImprovedStaggeredFermion5DImplementation.h

@@ -61,6 +61,8 @@ ImprovedStaggeredFermion5D<Impl>::ImprovedStaggeredFermion5D(GridCartesian
   UUUmu(&FourDimGrid),
   UUUmuEven(&FourDimRedBlackGrid),
   UUUmuOdd(&FourDimRedBlackGrid),
+  Lebesgue(&FourDimGrid),
+  LebesgueEvenOdd(&FourDimRedBlackGrid),
   _tmp(&FiveDimRedBlackGrid)
 {
 
@@ -275,18 +277,18 @@ void ImprovedStaggeredFermion5D<Impl>::DhopDerivOE(GaugeField &mat,
 
 /*CHANGE */
 template<class Impl>
-void ImprovedStaggeredFermion5D<Impl>::DhopInternal(StencilImpl & st, 
+void ImprovedStaggeredFermion5D<Impl>::DhopInternal(StencilImpl & st, LebesgueOrder &lo,
 						    DoubledGaugeField & U,DoubledGaugeField & UUU,
 						    const FermionField &in, FermionField &out,int dag)
 {
   if ( StaggeredKernelsStatic::Comms == StaggeredKernelsStatic::CommsAndCompute )
-    DhopInternalOverlappedComms(st,U,UUU,in,out,dag);
+    DhopInternalOverlappedComms(st,lo,U,UUU,in,out,dag);
   else
-    DhopInternalSerialComms(st,U,UUU,in,out,dag);
+    DhopInternalSerialComms(st,lo,U,UUU,in,out,dag);
 }
 
 template<class Impl>
-void ImprovedStaggeredFermion5D<Impl>::DhopInternalOverlappedComms(StencilImpl & st, 
+void ImprovedStaggeredFermion5D<Impl>::DhopInternalOverlappedComms(StencilImpl & st, LebesgueOrder &lo,
 								   DoubledGaugeField & U,DoubledGaugeField & UUU,
 								   const FermionField &in, FermionField &out,int dag)
 {
@@ -311,7 +313,7 @@ void ImprovedStaggeredFermion5D<Impl>::DhopInternalOverlappedComms(StencilImpl &
   {
     int interior=1;
     int exterior=0;
-    Kernels::DhopImproved(st,U,UUU,in,out,dag,interior,exterior);
+    Kernels::DhopImproved(st,lo,U,UUU,in,out,dag,interior,exterior);
   }
 
   st.CommsMerge(compressor);
@@ -321,12 +323,12 @@ void ImprovedStaggeredFermion5D<Impl>::DhopInternalOverlappedComms(StencilImpl &
   {
     int interior=0;
     int exterior=1;
-    Kernels::DhopImproved(st,U,UUU,in,out,dag,interior,exterior);
+    Kernels::DhopImproved(st,lo,U,UUU,in,out,dag,interior,exterior);
   }
 }
 
 template<class Impl>
-void ImprovedStaggeredFermion5D<Impl>::DhopInternalSerialComms(StencilImpl & st, 
+void ImprovedStaggeredFermion5D<Impl>::DhopInternalSerialComms(StencilImpl & st, LebesgueOrder &lo,
 						    DoubledGaugeField & U,DoubledGaugeField & UUU,
 						    const FermionField &in, FermionField &out,int dag)
 {
@@ -339,7 +341,7 @@ void ImprovedStaggeredFermion5D<Impl>::DhopInternalSerialComms(StencilImpl & st,
   {
     int interior=1;
     int exterior=1;
-    Kernels::DhopImproved(st,U,UUU,in,out,dag,interior,exterior);
+    Kernels::DhopImproved(st,lo,U,UUU,in,out,dag,interior,exterior);
   }
 }
 /*CHANGE END*/
@@ -355,7 +357,7 @@ void ImprovedStaggeredFermion5D<Impl>::DhopOE(const FermionField &in, FermionFie
   assert(in.Checkerboard()==Even);
   out.Checkerboard() = Odd;
 
-  DhopInternal(StencilEven,UmuOdd,UUUmuOdd,in,out,dag);
+  DhopInternal(StencilEven,LebesgueEvenOdd,UmuOdd,UUUmuOdd,in,out,dag);
 }
 template<class Impl>
 void ImprovedStaggeredFermion5D<Impl>::DhopEO(const FermionField &in, FermionField &out,int dag)
@@ -366,7 +368,7 @@ void ImprovedStaggeredFermion5D<Impl>::DhopEO(const FermionField &in, FermionFie
   assert(in.Checkerboard()==Odd);
   out.Checkerboard() = Even;
 
-  DhopInternal(StencilOdd,UmuEven,UUUmuEven,in,out,dag);
+  DhopInternal(StencilOdd,LebesgueEvenOdd,UmuEven,UUUmuEven,in,out,dag);
 }
 template<class Impl>
 void ImprovedStaggeredFermion5D<Impl>::Dhop(const FermionField &in, FermionField &out,int dag)
@@ -376,7 +378,7 @@ void ImprovedStaggeredFermion5D<Impl>::Dhop(const FermionField &in, FermionField
 
   out.Checkerboard() = in.Checkerboard();
 
-  DhopInternal(Stencil,Umu,UUUmu,in,out,dag);
+  DhopInternal(Stencil,Lebesgue,Umu,UUUmu,in,out,dag);
 }
 
 /////////////////////////////////////////////////////////////////////////

Grid/qcd/action/fermion/implementation/ImprovedStaggeredFermionImplementation.h

@@ -48,6 +48,8 @@ ImprovedStaggeredFermion<Impl>::ImprovedStaggeredFermion(GridCartesian &Fgrid, G
     StencilEven(&Hgrid, npoint, Even, directions, displacements,p),  // source is Even
     StencilOdd(&Hgrid, npoint, Odd, directions, displacements,p),  // source is Odd
     mass(_mass),
+    Lebesgue(_grid),
+    LebesgueEvenOdd(_cbgrid),
     Umu(&Fgrid),
     UmuEven(&Hgrid),
     UmuOdd(&Hgrid),
@@ -337,7 +339,7 @@ void ImprovedStaggeredFermion<Impl>::Dhop(const FermionField &in, FermionField &
 
   out.Checkerboard() = in.Checkerboard();
 
-  DhopInternal(Stencil, Umu, UUUmu, in, out, dag);
+  DhopInternal(Stencil, Lebesgue, Umu, UUUmu, in, out, dag);
 }
 
 template <class Impl>
@@ -349,7 +351,7 @@ void ImprovedStaggeredFermion<Impl>::DhopOE(const FermionField &in, FermionField
   assert(in.Checkerboard() == Even);
   out.Checkerboard() = Odd;
 
-  DhopInternal(StencilEven, UmuOdd, UUUmuOdd, in, out, dag);
+  DhopInternal(StencilEven, LebesgueEvenOdd, UmuOdd, UUUmuOdd, in, out, dag);
 }
 
 template <class Impl>
@@ -361,7 +363,7 @@ void ImprovedStaggeredFermion<Impl>::DhopEO(const FermionField &in, FermionField
   assert(in.Checkerboard() == Odd);
   out.Checkerboard() = Even;
 
-  DhopInternal(StencilOdd, UmuEven, UUUmuEven, in, out, dag);
+  DhopInternal(StencilOdd, LebesgueEvenOdd, UmuEven, UUUmuEven, in, out, dag);
 }
 
 template <class Impl>
@@ -392,19 +394,19 @@ void ImprovedStaggeredFermion<Impl>::DhopDir(const FermionField &in, FermionFiel
 
 
 template <class Impl>
-void ImprovedStaggeredFermion<Impl>::DhopInternal(StencilImpl &st, 
+void ImprovedStaggeredFermion<Impl>::DhopInternal(StencilImpl &st, LebesgueOrder &lo,
 						  DoubledGaugeField &U,
 						  DoubledGaugeField &UUU,
 						  const FermionField &in,
 						  FermionField &out, int dag) 
 {
   if ( StaggeredKernelsStatic::Comms == StaggeredKernelsStatic::CommsAndCompute )
-    DhopInternalOverlappedComms(st,U,UUU,in,out,dag);
+    DhopInternalOverlappedComms(st,lo,U,UUU,in,out,dag);
   else
-    DhopInternalSerialComms(st,U,UUU,in,out,dag);
+    DhopInternalSerialComms(st,lo,U,UUU,in,out,dag);
 }
 template <class Impl>
-void ImprovedStaggeredFermion<Impl>::DhopInternalOverlappedComms(StencilImpl &st, 
+void ImprovedStaggeredFermion<Impl>::DhopInternalOverlappedComms(StencilImpl &st, LebesgueOrder &lo,
 								 DoubledGaugeField &U,
 								 DoubledGaugeField &UUU,
 								 const FermionField &in,
@@ -427,7 +429,7 @@ void ImprovedStaggeredFermion<Impl>::DhopInternalOverlappedComms(StencilImpl &st
   {
     int interior=1;
     int exterior=0;
-    Kernels::DhopImproved(st,U,UUU,in,out,dag,interior,exterior);
+    Kernels::DhopImproved(st,lo,U,UUU,in,out,dag,interior,exterior);
   }
 
   st.CommunicateComplete(requests);
@@ -438,13 +440,13 @@ void ImprovedStaggeredFermion<Impl>::DhopInternalOverlappedComms(StencilImpl &st
   {
     int interior=0;
     int exterior=1;
-    Kernels::DhopImproved(st,U,UUU,in,out,dag,interior,exterior);
+    Kernels::DhopImproved(st,lo,U,UUU,in,out,dag,interior,exterior);
   }
 }
 
 
 template <class Impl>
-void ImprovedStaggeredFermion<Impl>::DhopInternalSerialComms(StencilImpl &st, 
+void ImprovedStaggeredFermion<Impl>::DhopInternalSerialComms(StencilImpl &st, LebesgueOrder &lo,
 							     DoubledGaugeField &U,
 							     DoubledGaugeField &UUU,
 							     const FermionField &in,
@@ -458,7 +460,7 @@ void ImprovedStaggeredFermion<Impl>::DhopInternalSerialComms(StencilImpl &st,
   {
     int interior=1;
     int exterior=1;
-    Kernels::DhopImproved(st,U,UUU,in,out,dag,interior,exterior);
+    Kernels::DhopImproved(st,lo,U,UUU,in,out,dag,interior,exterior);
   }
 };
 

Grid/qcd/action/fermion/implementation/MobiusEOFAFermionCache.h

@@ -39,7 +39,7 @@ NAMESPACE_BEGIN(Grid);
  
 template<class Impl>
 void MobiusEOFAFermion<Impl>::M5D(const FermionField &psi_i, const FermionField &phi_i, FermionField &chi_i,
-				  std::vector<Coeff_t> &lower, std::vector<Coeff_t> &diag, std::vector<Coeff_t> &upper)
+				  Vector<Coeff_t> &lower, Vector<Coeff_t> &diag, Vector<Coeff_t> &upper)
 {
   chi_i.Checkerboard() = psi_i.Checkerboard();
   GridBase *grid = psi_i.Grid();
@@ -50,14 +50,10 @@ void MobiusEOFAFermion<Impl>::M5D(const FermionField &psi_i, const FermionField
 
   assert(phi.Checkerboard() == psi.Checkerboard());
 
-  auto pdiag  = &this->d_diag[0];
-  auto pupper = &this->d_upper[0];
-  auto plower = &this->d_lower[0];
+  auto pdiag = &diag[0];
+  auto pupper = &upper[0];
+  auto plower = &lower[0];
 
-  acceleratorCopyToDevice(&diag[0],&pdiag[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&upper[0],&pupper[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&lower[0],&plower[0],Ls*sizeof(Coeff_t));
-  
   // Flops = 6.0*(Nc*Ns) *Ls*vol
   int nloop = grid->oSites()/Ls;
   accelerator_for(sss,nloop,Simd::Nsimd(),{
@@ -78,8 +74,8 @@ void MobiusEOFAFermion<Impl>::M5D(const FermionField &psi_i, const FermionField
 
 template<class Impl>
 void MobiusEOFAFermion<Impl>::M5D_shift(const FermionField &psi_i, const FermionField &phi_i, FermionField &chi_i,
-					std::vector<Coeff_t> &lower, std::vector<Coeff_t> &diag, std::vector<Coeff_t> &upper,
-					std::vector<Coeff_t> &shift_coeffs)
+					Vector<Coeff_t> &lower, Vector<Coeff_t> &diag, Vector<Coeff_t> &upper,
+					Vector<Coeff_t> &shift_coeffs)
 {
   chi_i.Checkerboard() = psi_i.Checkerboard();
   GridBase *grid = psi_i.Grid();
@@ -90,18 +86,13 @@ void MobiusEOFAFermion<Impl>::M5D_shift(const FermionField &psi_i, const Fermion
 
   auto pm  = this->pm;
   int shift_s = (pm == 1) ? (Ls-1) : 0; // s-component modified by shift operator
-  
+
   assert(phi.Checkerboard() == psi.Checkerboard());
 
-  auto pdiag  = &this->d_diag[0];
-  auto pupper = &this->d_upper[0];
-  auto plower = &this->d_lower[0];
-  auto pshift_coeffs = &this->d_shift_coefficients[0];
-
-  acceleratorCopyToDevice(&diag[0],&pdiag[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&upper[0],&pupper[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&lower[0],&plower[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&shift_coeffs[0],&pshift_coeffs[0],Ls*sizeof(Coeff_t));
+  auto pdiag = &diag[0];
+  auto pupper = &upper[0];
+  auto plower = &lower[0];
+  auto pshift_coeffs = &shift_coeffs[0];
 
   // Flops = 6.0*(Nc*Ns) *Ls*vol
   int nloop = grid->oSites()/Ls;
@@ -128,7 +119,7 @@ void MobiusEOFAFermion<Impl>::M5D_shift(const FermionField &psi_i, const Fermion
 
 template<class Impl>
 void MobiusEOFAFermion<Impl>::M5Ddag(const FermionField &psi_i, const FermionField &phi_i, FermionField &chi_i,
-				     std::vector<Coeff_t> &lower, std::vector<Coeff_t> &diag, std::vector<Coeff_t> &upper)
+				     Vector<Coeff_t> &lower, Vector<Coeff_t> &diag, Vector<Coeff_t> &upper)
 {
   chi_i.Checkerboard() = psi_i.Checkerboard();
   GridBase *grid = psi_i.Grid();
@@ -138,14 +129,10 @@ void MobiusEOFAFermion<Impl>::M5Ddag(const FermionField &psi_i, const FermionFie
   autoView(chi , chi_i, AcceleratorWrite);
 
   assert(phi.Checkerboard() == psi.Checkerboard());
-  
-  auto pdiag  = &this->d_diag[0];
-  auto pupper = &this->d_upper[0];
-  auto plower = &this->d_lower[0];
 
-  acceleratorCopyToDevice(&diag[0],&pdiag[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&upper[0],&pupper[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&lower[0],&plower[0],Ls*sizeof(Coeff_t));
+  auto pdiag = &diag[0];
+  auto pupper = &upper[0];
+  auto plower = &lower[0];
 
   // Flops = 6.0*(Nc*Ns) *Ls*vol
   int nloop = grid->oSites()/Ls;
@@ -167,8 +154,8 @@ void MobiusEOFAFermion<Impl>::M5Ddag(const FermionField &psi_i, const FermionFie
 
 template<class Impl>
 void MobiusEOFAFermion<Impl>::M5Ddag_shift(const FermionField &psi_i, const FermionField &phi_i, FermionField &chi_i,
-					   std::vector<Coeff_t> &lower, std::vector<Coeff_t> &diag, std::vector<Coeff_t> &upper,
-					   std::vector<Coeff_t> &shift_coeffs)
+					   Vector<Coeff_t> &lower, Vector<Coeff_t> &diag, Vector<Coeff_t> &upper,
+					   Vector<Coeff_t> &shift_coeffs)
 {
   chi_i.Checkerboard() = psi_i.Checkerboard();
   GridBase *grid = psi_i.Grid();
@@ -180,16 +167,11 @@ void MobiusEOFAFermion<Impl>::M5Ddag_shift(const FermionField &psi_i, const Ferm
 
   assert(phi.Checkerboard() == psi.Checkerboard());
 
-  auto pdiag  = &this->d_diag[0];
-  auto pupper = &this->d_upper[0];
-  auto plower = &this->d_lower[0];
-  auto pshift_coeffs = &this->d_shift_coefficients[0];
+  auto pdiag = &diag[0];
+  auto pupper = &upper[0];
+  auto plower = &lower[0];
+  auto pshift_coeffs = &shift_coeffs[0];
 
-  acceleratorCopyToDevice(&diag[0],&pdiag[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&upper[0],&pupper[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&lower[0],&plower[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&shift_coeffs[0],&pshift_coeffs[0],Ls*sizeof(Coeff_t));
-  
   // Flops = 6.0*(Nc*Ns) *Ls*vol
   auto pm = this->pm;
 
@@ -230,17 +212,11 @@ void MobiusEOFAFermion<Impl>::MooeeInv(const FermionField &psi_i, FermionField &
   autoView(psi , psi_i, AcceleratorRead);
   autoView(chi , chi_i, AcceleratorWrite);
 
-  auto plee  = & this->d_lee [0];
-  auto pdee  = & this->d_dee [0];
-  auto puee  = & this->d_uee [0];
-  auto pleem = & this->d_leem[0];
-  auto pueem = & this->d_ueem[0];
-
-  acceleratorCopyToDevice(&this->lee[0],&plee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->dee[0],&pdee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->uee[0],&puee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->leem[0],&pleem[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->ueem[0],&pueem[0],Ls*sizeof(Coeff_t));
+  auto plee = & this->lee [0];
+  auto pdee = & this->dee [0];
+  auto puee = & this->uee [0];
+  auto pleem= & this->leem[0];
+  auto pueem= & this->ueem[0];
 
   if(this->shift != 0.0){ MooeeInv_shift(psi_i,chi_i); return; }
 
@@ -292,23 +268,14 @@ void MobiusEOFAFermion<Impl>::MooeeInv_shift(const FermionField &psi_i, FermionF
   autoView(psi , psi_i, AcceleratorRead);
   autoView(chi , chi_i, AcceleratorWrite);
 
-  // Move into object and constructor
   auto pm = this->pm;
-  auto plee  = & this->d_lee [0];
-  auto pdee  = & this->d_dee [0];
-  auto puee  = & this->d_uee [0];
-  auto pleem = & this->d_leem[0];
-  auto pueem = & this->d_ueem[0];
-  auto pMooeeInv_shift_lc   = &this->d_MooeeInv_shift_lc[0];
-  auto pMooeeInv_shift_norm = &this->d_MooeeInv_shift_norm[0];
-
-  acceleratorCopyToDevice(&this->lee[0],&plee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->dee[0],&pdee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->uee[0],&puee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->leem[0],&pleem[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->ueem[0],&pueem[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&MooeeInv_shift_lc[0],&pMooeeInv_shift_lc[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&MooeeInv_shift_norm[0],&pMooeeInv_shift_norm[0],Ls*sizeof(Coeff_t));
+  auto plee = & this->lee [0];
+  auto pdee = & this->dee [0];
+  auto puee = & this->uee [0];
+  auto pleem= & this->leem[0];
+  auto pueem= & this->ueem[0];
+  auto pMooeeInv_shift_lc   = &MooeeInv_shift_lc[0];
+  auto pMooeeInv_shift_norm = &MooeeInv_shift_norm[0];
 
   int nloop = grid->oSites()/Ls;
   accelerator_for(sss,nloop,Simd::Nsimd(),{
@@ -366,17 +333,11 @@ void MobiusEOFAFermion<Impl>::MooeeInvDag(const FermionField &psi_i, FermionFiel
   autoView(psi , psi_i, AcceleratorRead);
   autoView(chi , chi_i, AcceleratorWrite);
 
-  auto plee  = &this->d_lee [0];
-  auto pdee  = &this->d_dee [0];
-  auto puee  = &this->d_uee [0];
-  auto pleem = &this->d_leem[0];
-  auto pueem = &this->d_ueem[0];
-
-  acceleratorCopyToDevice(&this->lee[0],&plee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->dee[0],&pdee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->uee[0],&puee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->leem[0],&pleem[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->ueem[0],&pueem[0],Ls*sizeof(Coeff_t));
+  auto plee = & this->lee [0];
+  auto pdee = & this->dee [0];
+  auto puee = & this->uee [0];
+  auto pleem= & this->leem[0];
+  auto pueem= & this->ueem[0];
 
   int nloop = grid->oSites()/Ls;
   accelerator_for(sss,nloop,Simd::Nsimd(),{
@@ -426,25 +387,13 @@ void MobiusEOFAFermion<Impl>::MooeeInvDag_shift(const FermionField &psi_i, Fermi
   int Ls = this->Ls;
 
   auto pm = this->pm;
-  auto plee  = & this->d_lee [0];
-  auto pdee  = & this->d_dee [0];
-  auto puee  = & this->d_uee [0];
-  auto pleem = & this->d_leem[0];
-  auto pueem = & this->d_ueem[0];
-
-  auto pMooeeInvDag_shift_lc   = &this->d_MooeeInv_shift_lc[0];
-  auto pMooeeInvDag_shift_norm = &this->d_MooeeInv_shift_norm[0];
-
-  acceleratorCopyToDevice(&this->lee[0],&plee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->dee[0],&pdee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->uee[0],&puee[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->leem[0],&pleem[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&this->ueem[0],&pueem[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&MooeeInvDag_shift_lc[0],&pMooeeInvDag_shift_lc[0],Ls*sizeof(Coeff_t));
-  acceleratorCopyToDevice(&MooeeInvDag_shift_norm[0],&pMooeeInvDag_shift_norm[0],Ls*sizeof(Coeff_t));
-
-  //  auto pMooeeInvDag_shift_lc   = &MooeeInvDag_shift_lc[0];
-  //  auto pMooeeInvDag_shift_norm = &MooeeInvDag_shift_norm[0];
+  auto plee = & this->lee [0];
+  auto pdee = & this->dee [0];
+  auto puee = & this->uee [0];
+  auto pleem= & this->leem[0];
+  auto pueem= & this->ueem[0];
+  auto pMooeeInvDag_shift_lc   = &MooeeInvDag_shift_lc[0];
+  auto pMooeeInvDag_shift_norm = &MooeeInvDag_shift_norm[0];
 
   int nloop = grid->oSites()/Ls;
   accelerator_for(sss,nloop,Simd::Nsimd(),{

Grid/qcd/action/fermion/implementation/MobiusEOFAFermionImplementation.h

@@ -196,9 +196,9 @@ void MobiusEOFAFermion<Impl>::M5D(const FermionField& psi, FermionField& chi)
 {
   int Ls = this->Ls;
 
-  std::vector<Coeff_t> diag(Ls,1.0);
-  std::vector<Coeff_t> upper(Ls,-1.0);  upper[Ls-1] = this->mq1;
-  std::vector<Coeff_t> lower(Ls,-1.0);  lower[0]    = this->mq1;
+  Vector<Coeff_t> diag(Ls,1.0);
+  Vector<Coeff_t> upper(Ls,-1.0);  upper[Ls-1] = this->mq1;
+  Vector<Coeff_t> lower(Ls,-1.0);  lower[0]    = this->mq1;
 
   // no shift term
   if(this->shift == 0.0){ this->M5D(psi, chi, chi, lower, diag, upper); }
@@ -212,9 +212,9 @@ void MobiusEOFAFermion<Impl>::M5Ddag(const FermionField& psi, FermionField& chi)
 {
   int Ls = this->Ls;
 
-  std::vector<Coeff_t> diag(Ls,1.0);
-  std::vector<Coeff_t> upper(Ls,-1.0);  upper[Ls-1] = this->mq1;
-  std::vector<Coeff_t> lower(Ls,-1.0);  lower[0]    = this->mq1;
+  Vector<Coeff_t> diag(Ls,1.0);
+  Vector<Coeff_t> upper(Ls,-1.0);  upper[Ls-1] = this->mq1;
+  Vector<Coeff_t> lower(Ls,-1.0);  lower[0]    = this->mq1;
 
   // no shift term
   if(this->shift == 0.0){ this->M5Ddag(psi, chi, chi, lower, diag, upper); }
@@ -230,9 +230,9 @@ void MobiusEOFAFermion<Impl>::Mooee(const FermionField& psi, FermionField& chi)
   int Ls = this->Ls;
 
   // coefficients of Mooee
-  std::vector<Coeff_t> diag = this->bee;
-  std::vector<Coeff_t> upper(Ls);
-  std::vector<Coeff_t> lower(Ls);
+  Vector<Coeff_t> diag = this->bee;
+  Vector<Coeff_t> upper(Ls);
+  Vector<Coeff_t> lower(Ls);
   for(int s=0; s<Ls; s++){
     upper[s] = -this->cee[s];
     lower[s] = -this->cee[s];
@@ -253,9 +253,9 @@ void MobiusEOFAFermion<Impl>::MooeeDag(const FermionField& psi, FermionField& ch
   int Ls = this->Ls;
 
   // coefficients of MooeeDag
-  std::vector<Coeff_t> diag = this->bee;
-  std::vector<Coeff_t> upper(Ls);
-  std::vector<Coeff_t> lower(Ls);
+  Vector<Coeff_t> diag = this->bee;
+  Vector<Coeff_t> upper(Ls);
+  Vector<Coeff_t> lower(Ls);
   for(int s=0; s<Ls; s++){
     if(s==0) {
       upper[s] = -this->cee[s+1];
@@ -314,10 +314,10 @@ void MobiusEOFAFermion<Impl>::SetCoefficientsPrecondShiftOps()
   // Tridiagonal solve for MooeeInvDag_shift_lc
   {
     Coeff_t m(0.0);
-    std::vector<Coeff_t> d = Mooee_shift;
-    std::vector<Coeff_t> u(Ls,0.0);
-    std::vector<Coeff_t> y(Ls,0.0);
-    std::vector<Coeff_t> q(Ls,0.0);
+    Vector<Coeff_t> d = Mooee_shift;
+    Vector<Coeff_t> u(Ls,0.0);
+    Vector<Coeff_t> y(Ls,0.0);
+    Vector<Coeff_t> q(Ls,0.0);
     if(pm == 1){ u[0] = 1.0; }
     else{ u[Ls-1] = 1.0; }
 

Grid/qcd/action/fermion/implementation/NaiveStaggeredFermionImplementation.h

@@ -48,6 +48,8 @@ NaiveStaggeredFermion<Impl>::NaiveStaggeredFermion(GridCartesian &Fgrid, GridRed
     StencilEven(&Hgrid, npoint, Even, directions, displacements,p),  // source is Even
     StencilOdd(&Hgrid, npoint, Odd, directions, displacements,p),  // source is Odd
     mass(_mass),
+    Lebesgue(_grid),
+    LebesgueEvenOdd(_cbgrid),
     Umu(&Fgrid),
     UmuEven(&Hgrid),
     UmuOdd(&Hgrid),
@@ -266,7 +268,7 @@ void NaiveStaggeredFermion<Impl>::Dhop(const FermionField &in, FermionField &out
 
   out.Checkerboard() = in.Checkerboard();
 
-  DhopInternal(Stencil, Umu, in, out, dag);
+  DhopInternal(Stencil, Lebesgue, Umu, in, out, dag);
 }
 
 template <class Impl>
@@ -278,7 +280,7 @@ void NaiveStaggeredFermion<Impl>::DhopOE(const FermionField &in, FermionField &o
   assert(in.Checkerboard() == Even);
   out.Checkerboard() = Odd;
 
-  DhopInternal(StencilEven, UmuOdd, in, out, dag);
+  DhopInternal(StencilEven, LebesgueEvenOdd, UmuOdd, in, out, dag);
 }
 
 template <class Impl>
@@ -290,7 +292,7 @@ void NaiveStaggeredFermion<Impl>::DhopEO(const FermionField &in, FermionField &o
   assert(in.Checkerboard() == Odd);
   out.Checkerboard() = Even;
 
-  DhopInternal(StencilOdd, UmuEven, in, out, dag);
+  DhopInternal(StencilOdd, LebesgueEvenOdd, UmuEven, in, out, dag);
 }
 
 template <class Impl>
@@ -321,18 +323,18 @@ void NaiveStaggeredFermion<Impl>::DhopDir(const FermionField &in, FermionField &
 
 
 template <class Impl>
-void NaiveStaggeredFermion<Impl>::DhopInternal(StencilImpl &st,
+void NaiveStaggeredFermion<Impl>::DhopInternal(StencilImpl &st, LebesgueOrder &lo,
 					       DoubledGaugeField &U,
 					       const FermionField &in,
 					       FermionField &out, int dag) 
 {
   if ( StaggeredKernelsStatic::Comms == StaggeredKernelsStatic::CommsAndCompute )
-    DhopInternalOverlappedComms(st,U,in,out,dag);
+    DhopInternalOverlappedComms(st,lo,U,in,out,dag);
   else
-    DhopInternalSerialComms(st,U,in,out,dag);
+    DhopInternalSerialComms(st,lo,U,in,out,dag);
 }
 template <class Impl>
-void NaiveStaggeredFermion<Impl>::DhopInternalOverlappedComms(StencilImpl &st,
+void NaiveStaggeredFermion<Impl>::DhopInternalOverlappedComms(StencilImpl &st, LebesgueOrder &lo,
 							      DoubledGaugeField &U,
 							      const FermionField &in,
 							      FermionField &out, int dag) 
@@ -354,7 +356,7 @@ void NaiveStaggeredFermion<Impl>::DhopInternalOverlappedComms(StencilImpl &st,
   {
     int interior=1;
     int exterior=0;
-    Kernels::DhopNaive(st,U,in,out,dag,interior,exterior);
+    Kernels::DhopNaive(st,lo,U,in,out,dag,interior,exterior);
   }
 
   st.CommunicateComplete(requests);
@@ -365,12 +367,12 @@ void NaiveStaggeredFermion<Impl>::DhopInternalOverlappedComms(StencilImpl &st,
   {
     int interior=0;
     int exterior=1;
-    Kernels::DhopNaive(st,U,in,out,dag,interior,exterior);
+    Kernels::DhopNaive(st,lo,U,in,out,dag,interior,exterior);
   }
 }
 
 template <class Impl>
-void NaiveStaggeredFermion<Impl>::DhopInternalSerialComms(StencilImpl &st,
+void NaiveStaggeredFermion<Impl>::DhopInternalSerialComms(StencilImpl &st, LebesgueOrder &lo,
 							  DoubledGaugeField &U,
 							  const FermionField &in,
 							  FermionField &out, int dag) 
@@ -383,7 +385,7 @@ void NaiveStaggeredFermion<Impl>::DhopInternalSerialComms(StencilImpl &st,
   {
     int interior=1;
     int exterior=1;
-    Kernels::DhopNaive(st,U,in,out,dag,interior,exterior);
+    Kernels::DhopNaive(st,lo,U,in,out,dag,interior,exterior);
   }
 };
 

Grid/qcd/action/fermion/implementation/PartialFractionFermion5DImplementation.h

@@ -237,32 +237,7 @@ void   PartialFractionFermion5D<Impl>::M_internal(const FermionField &psi, Fermi
   //           ( 0     -sqrt(p_i)*amax   |  2 R gamma_5 + p0/amax 2H
   //
 
-  this->DW(psi,D,DaggerNo);
-
-  // DW - DW+iqslash
-  //  (g5 Dw)^dag = g5 Dw
-  //  (iqmu g5 gmu)^dag = (-i qmu gmu^dag g5^dag) = i qmu g5 gmu
-  if ( qmu.size() ) {
-
-    std::cout<< "Mat" << "qmu ("<<qmu[0]<<","<<qmu[1]<<","<<qmu[2]<<","<<qmu[3]<<")"<<std::endl;
-    assert(qmu.size()==Nd);
-
-    FermionField qslash_psi(psi.Grid());
-
-    Gamma::Algebra Gmu [] = {
-			     Gamma::Algebra::GammaX,
-			     Gamma::Algebra::GammaY,
-			     Gamma::Algebra::GammaZ,
-			     Gamma::Algebra::GammaT
-    };
-    qslash_psi = qmu[0]*(Gamma(Gmu[0])*psi);
-    for(int mu=1;mu<Nd;mu++){
-      qslash_psi = qslash_psi + qmu[mu]*(Gamma(Gmu[mu])*psi);
-    }
-    ComplexD ci(0.0,1.0);
-    qslash_psi = ci*qslash_psi ; // i qslash
-    D = D + qslash_psi;
-  }
+  this->DW(psi,D,DaggerNo); 
 
   int nblock=(Ls-1)/2;
   for(int b=0;b<nblock;b++){
@@ -280,55 +255,15 @@ void   PartialFractionFermion5D<Impl>::M_internal(const FermionField &psi, Fermi
   }
 	
   {
-    // The 'conventional' Cayley overlap operator is
-    //
-    // Dov = (1+m)/2 + (1-m)/2 g5 sgn Hw
-    //
-    //
-    // With massless limit 1/2(1+g5 sgnHw)
-    //
-    // Luscher shows quite neatly that 1+g5 sgn Hw has tree level propagator i qslash +O(a^2)
-    //
-    // However, the conventional normalisation has both a leading order factor of 2 in Zq
-    // at tree level AND a mass dependent (1-m) that are convenient to absorb.
-    //
-    // In WilsonFermion5DImplementation.h, the tree level propagator for Hw is
-    //
-    // num = -i sin kmu gmu
-    //
-    // denom ( sqrt(sk^2 + (2shk^2 - 1)^2
-    //    b_k = sk2 - M5;
-    //     
-    //    w_k = sqrt(sk + b_k*b_k);
-    //
-    //    denom= ( w_k + b_k + mass*mass) ;
-    //
-    //    denom= one/denom;
-    //    out = num*denom;
-    //
-    // Chroma, and Grid define partial fraction via 4d operator
-    //
-    //   Dpf = 2/(1-m) x Dov = (1+m)/(1-m) + g5 sgn Hw
-    //
-    // Now since:
-    //
-    //      (1+m)/(1-m) = (1-m)/(1-m) + 2m/(1-m) = 1 + 2m/(1-m)
-    //
-    // This corresponds to a modified mass parameter
-    //
-    // It has an annoying 
-    //
-    // 
     double R=(1+this->mass)/(1-this->mass);
-    //R g5 psi[Ls] + p[0] Hw
+    //R g5 psi[Ls] + p[0] H
     ag5xpbg5y_ssp(chi,R*scale,psi,p[nblock]*scale/amax,D,Ls-1,Ls-1);
-    
+	
     for(int b=0;b<nblock;b++){
       int s = 2*b+1;
       double pp = p[nblock-1-b];
       axpby_ssp(chi,1.0,chi,-sqrt(amax*pp)*scale*sign,psi,Ls-1,s);
     }
-   
   }
 
 }
@@ -476,18 +411,17 @@ void  PartialFractionFermion5D<Impl>::SetCoefficientsZolotarev(RealD zolo_hi,App
       int Ls = this->Ls;
       conformable(solution5d.Grid(),this->FermionGrid());
       conformable(exported4d.Grid(),this->GaugeGrid());
-      ExtractSlice(exported4d, solution5d, Ls-1, 0);
+      ExtractSlice(exported4d, solution5d, Ls-1, Ls-1);
     }
     template<class Impl>
     void PartialFractionFermion5D<Impl>::ImportPhysicalFermionSource(const FermionField &input4d,FermionField &imported5d)
     {
-      //void InsertSlice(const Lattice<vobj> &lowDim,Lattice<vobj> & higherDim,int slice, int orthog)
       int Ls = this->Ls;
       conformable(imported5d.Grid(),this->FermionGrid());
       conformable(input4d.Grid()   ,this->GaugeGrid());
       FermionField tmp(this->FermionGrid());
       tmp=Zero();
-      InsertSlice(input4d, tmp, Ls-1, 0);
+      InsertSlice(input4d, tmp, Ls-1, Ls-1);
       tmp=Gamma(Gamma::Algebra::Gamma5)*tmp;
       this->Dminus(tmp,imported5d);
     }
@@ -508,7 +442,7 @@ PartialFractionFermion5D<Impl>::PartialFractionFermion5D(GaugeField &_Umu,
 
 {
   int Ls = this->Ls;
-  qmu.resize(0);
+
   assert((Ls&0x1)==1); // Odd Ls required
   int nrational=Ls-1;
 
@@ -526,22 +460,6 @@ PartialFractionFermion5D<Impl>::PartialFractionFermion5D(GaugeField &_Umu,
   Approx::zolotarev_free(zdata);
 
 }
-template<class Impl>
-PartialFractionFermion5D<Impl>::PartialFractionFermion5D(GaugeField &_Umu,
-							 GridCartesian         &FiveDimGrid,
-							 GridRedBlackCartesian &FiveDimRedBlackGrid,
-							 GridCartesian         &FourDimGrid,
-							 GridRedBlackCartesian &FourDimRedBlackGrid,
-							 RealD _mass,RealD M5,
-							 std::vector<RealD> &_qmu,
-							 const ImplParams &p)
-  : PartialFractionFermion5D<Impl>(_Umu,
-			     FiveDimGrid,FiveDimRedBlackGrid,
-			     FourDimGrid,FourDimRedBlackGrid,
-			     _mass,M5,p)
-{
-  qmu=_qmu;
-}
 
 NAMESPACE_END(Grid);
 

Grid/qcd/action/fermion/implementation/StaggeredKernelsHand.h

@@ -375,6 +375,23 @@ void StaggeredKernels<Impl>::DhopSiteHandExt(StencilView &st,
   }
 }
 
+/*
+#define DHOP_SITE_HAND_INSTANTIATE(IMPL)				\
+  template void StaggeredKernels<IMPL>::DhopSiteHand(StencilImpl &st, LebesgueOrder &lo, \
+						     DoubledGaugeFieldView &U,DoubledGaugeFieldView &UUU, \
+						     SiteSpinor *buf, int LLs, int sU, \
+						     const FermionFieldView &in, FermionFieldView &out, int dag); \
+									\
+  template void StaggeredKernels<IMPL>::DhopSiteHandInt(StencilImpl &st, LebesgueOrder &lo, \
+						     DoubledGaugeFieldView &U,DoubledGaugeFieldView &UUU, \
+						     SiteSpinor *buf, int LLs, int sU, \
+						     const FermionFieldView &in, FermionFieldView &out, int dag); \
+									\
+  template void StaggeredKernels<IMPL>::DhopSiteHandExt(StencilImpl &st, LebesgueOrder &lo, \
+						     DoubledGaugeFieldView &U,DoubledGaugeFieldView &UUU, \
+						     SiteSpinor *buf, int LLs, int sU, \
+						     const FermionFieldView &in, FermionFieldView &out, int dag); \
+*/
 #undef LOAD_CHI
 #undef HAND_DECLARATIONS
 

Grid/qcd/action/fermion/implementation/StaggeredKernelsImplementation.h

@@ -256,7 +256,7 @@ void StaggeredKernels<Impl>::DhopDirKernel(StencilImpl &st, DoubledGaugeFieldVie
   });
 
 template <class Impl> 
-void StaggeredKernels<Impl>::DhopImproved(StencilImpl &st, 
+void StaggeredKernels<Impl>::DhopImproved(StencilImpl &st, LebesgueOrder &lo, 
 					  DoubledGaugeField &U, DoubledGaugeField &UUU, 
 					  const FermionField &in, FermionField &out, int dag, int interior,int exterior)
 {
@@ -294,7 +294,7 @@ void StaggeredKernels<Impl>::DhopImproved(StencilImpl &st,
   assert(0 && " Kernel optimisation case not covered ");
 }
 template <class Impl> 
-void StaggeredKernels<Impl>::DhopNaive(StencilImpl &st, 
+void StaggeredKernels<Impl>::DhopNaive(StencilImpl &st, LebesgueOrder &lo, 
 				       DoubledGaugeField &U,
 				       const FermionField &in, FermionField &out, int dag, int interior,int exterior)
 {

Grid/qcd/action/fermion/implementation/WilsonFermion5DImplementation.h

@@ -58,9 +58,15 @@ WilsonFermion5D<Impl>::WilsonFermion5D(GaugeField &_Umu,
   Umu(_FourDimGrid),
   UmuEven(_FourDimRedBlackGrid),
   UmuOdd (_FourDimRedBlackGrid),
+  Lebesgue(_FourDimGrid),
+  LebesgueEvenOdd(_FourDimRedBlackGrid),
   _tmp(&FiveDimRedBlackGrid),
   Dirichlet(0)
 {
+  Stencil.lo     = &Lebesgue;
+  StencilEven.lo = &LebesgueEvenOdd;
+  StencilOdd.lo  = &LebesgueEvenOdd;
+  
   // some assertions
   assert(FiveDimGrid._ndimension==5);
   assert(FourDimGrid._ndimension==4);
@@ -299,19 +305,19 @@ void WilsonFermion5D<Impl>::DhopDerivOE(GaugeField &mat,
 }
 
 template<class Impl>
-void WilsonFermion5D<Impl>::DhopInternal(StencilImpl & st,
+void WilsonFermion5D<Impl>::DhopInternal(StencilImpl & st, LebesgueOrder &lo,
                                          DoubledGaugeField & U,
                                          const FermionField &in, FermionField &out,int dag)
 {
   if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsAndCompute )
-    DhopInternalOverlappedComms(st,U,in,out,dag);
+    DhopInternalOverlappedComms(st,lo,U,in,out,dag);
   else 
-    DhopInternalSerialComms(st,U,in,out,dag);
+    DhopInternalSerialComms(st,lo,U,in,out,dag);
 }
 
 
 template<class Impl>
-void WilsonFermion5D<Impl>::DhopInternalOverlappedComms(StencilImpl & st,
+void WilsonFermion5D<Impl>::DhopInternalOverlappedComms(StencilImpl & st, LebesgueOrder &lo,
 							DoubledGaugeField & U,
 							const FermionField &in, FermionField &out,int dag)
 {
@@ -325,22 +331,22 @@ void WilsonFermion5D<Impl>::DhopInternalOverlappedComms(StencilImpl & st,
   // Start comms  // Gather intranode and extra node differentiated??
   /////////////////////////////
   {
-    //    std::cout << " WilsonFermion5D gather " <<std::endl;
     GRID_TRACE("Gather");
     st.HaloExchangeOptGather(in,compressor); // Put the barrier in the routine
   }
   
-  //  std::cout << " WilsonFermion5D Communicate Begin " <<std::endl;
   std::vector<std::vector<CommsRequest_t> > requests;
+  auto id=traceStart("Communicate overlapped");
+  st.CommunicateBegin(requests);
 
-#if 1
   /////////////////////////////
   // Overlap with comms
   /////////////////////////////
-  st.CommunicateBegin(requests);
-  st.CommsMergeSHM(compressor);// Could do this inside parallel region overlapped with comms 
-#endif
-
+  {
+    GRID_TRACE("MergeSHM");
+    st.CommsMergeSHM(compressor);// Could do this inside parallel region overlapped with comms
+  }
+      
   /////////////////////////////
   // do the compute interior
   /////////////////////////////
@@ -352,35 +358,22 @@ void WilsonFermion5D<Impl>::DhopInternalOverlappedComms(StencilImpl & st,
     GRID_TRACE("DhopInterior");
     Kernels::DhopKernel   (Opt,st,U,st.CommBuf(),LLs,U.oSites(),in,out,1,0);
   }
-  
-  //ifdef GRID_ACCELERATED
-#if 0
-  /////////////////////////////
-  // Overlap with comms -- on GPU the interior kernel call is nonblocking
-  /////////////////////////////
-  st.CommunicateBegin(requests);
-  st.CommsMergeSHM(compressor);// Could do this inside parallel region overlapped with comms
-#endif
-  
-  
+
   /////////////////////////////
   // Complete comms
   /////////////////////////////
-  //  std::cout << " WilsonFermion5D Comms Complete " <<std::endl;
   st.CommunicateComplete(requests);
-  //  traceStop(id);
+  traceStop(id);
 
   /////////////////////////////
   // do the compute exterior
   /////////////////////////////
   {
-    //    std::cout << " WilsonFermion5D Comms Merge " <<std::endl;
     GRID_TRACE("Merge");
     st.CommsMerge(compressor);
   }
   
 
-  //  std::cout << " WilsonFermion5D Exterior " <<std::endl;
   if (dag == DaggerYes) {
     GRID_TRACE("DhopDagExterior");
     Kernels::DhopDagKernel(Opt,st,U,st.CommBuf(),LLs,U.oSites(),in,out,0,1);
@@ -388,12 +381,11 @@ void WilsonFermion5D<Impl>::DhopInternalOverlappedComms(StencilImpl & st,
     GRID_TRACE("DhopExterior");
     Kernels::DhopKernel   (Opt,st,U,st.CommBuf(),LLs,U.oSites(),in,out,0,1);
   }
-  //  std::cout << " WilsonFermion5D Done " <<std::endl;
 }
 
 
 template<class Impl>
-void WilsonFermion5D<Impl>::DhopInternalSerialComms(StencilImpl & st, 
+void WilsonFermion5D<Impl>::DhopInternalSerialComms(StencilImpl & st, LebesgueOrder &lo,
 						    DoubledGaugeField & U,
 						    const FermionField &in, 
 						    FermionField &out,int dag)
@@ -403,13 +395,11 @@ void WilsonFermion5D<Impl>::DhopInternalSerialComms(StencilImpl & st,
 
   int LLs = in.Grid()->_rdimensions[0];
 
-  //  std::cout << " WilsonFermion5D Halo exch " <<std::endl;
   {
     GRID_TRACE("HaloExchange");
     st.HaloExchangeOpt(in,compressor);
   }
   
-  //  std::cout << " WilsonFermion5D Dhop " <<std::endl;
   int Opt = WilsonKernelsStatic::Opt;
   if (dag == DaggerYes) {
     GRID_TRACE("DhopDag");
@@ -418,7 +408,6 @@ void WilsonFermion5D<Impl>::DhopInternalSerialComms(StencilImpl & st,
     GRID_TRACE("Dhop");
     Kernels::DhopKernel(Opt,st,U,st.CommBuf(),LLs,U.oSites(),in,out);
   }
-  //  std::cout << " WilsonFermion5D Done " <<std::endl;
 }
 
 
@@ -431,7 +420,7 @@ void WilsonFermion5D<Impl>::DhopOE(const FermionField &in, FermionField &out,int
   assert(in.Checkerboard()==Even);
   out.Checkerboard() = Odd;
 
-  DhopInternal(StencilEven,UmuOdd,in,out,dag);
+  DhopInternal(StencilEven,LebesgueEvenOdd,UmuOdd,in,out,dag);
 }
 template<class Impl>
 void WilsonFermion5D<Impl>::DhopEO(const FermionField &in, FermionField &out,int dag)
@@ -442,31 +431,8 @@ void WilsonFermion5D<Impl>::DhopEO(const FermionField &in, FermionField &out,int
   assert(in.Checkerboard()==Odd);
   out.Checkerboard() = Even;
 
-  DhopInternal(StencilOdd,UmuEven,in,out,dag);
+  DhopInternal(StencilOdd,LebesgueEvenOdd,UmuEven,in,out,dag);
 }
-template<class Impl>
-void WilsonFermion5D<Impl>::DhopComms(const FermionField &in, FermionField &out)
-{
-  int dag =0 ;
-  conformable(in.Grid(),FermionGrid()); // verifies full grid
-  conformable(in.Grid(),out.Grid());
-  out.Checkerboard() = in.Checkerboard();
-  Compressor compressor(dag);
-  Stencil.HaloExchangeOpt(in,compressor);
-}
-template<class Impl>
-void WilsonFermion5D<Impl>::DhopCalc(const FermionField &in, FermionField &out,uint64_t *ids)
-{
-  conformable(in.Grid(),FermionGrid()); // verifies full grid
-  conformable(in.Grid(),out.Grid());
-
-  out.Checkerboard() = in.Checkerboard();
-
-  int LLs = in.Grid()->_rdimensions[0];
-  int Opt = WilsonKernelsStatic::Opt;
-  Kernels::DhopKernel(Opt,Stencil,Umu,Stencil.CommBuf(),LLs,Umu.oSites(),in,out,ids);
-}
-
 template<class Impl>
 void WilsonFermion5D<Impl>::Dhop(const FermionField &in, FermionField &out,int dag)
 {
@@ -475,7 +441,7 @@ void WilsonFermion5D<Impl>::Dhop(const FermionField &in, FermionField &out,int d
 
   out.Checkerboard() = in.Checkerboard();
 
-  DhopInternal(Stencil,Umu,in,out,dag);
+  DhopInternal(Stencil,Lebesgue,Umu,in,out,dag);
 }
 template<class Impl>
 void WilsonFermion5D<Impl>::DW(const FermionField &in, FermionField &out,int dag)
@@ -769,15 +735,6 @@ void WilsonFermion5D<Impl>::MomentumSpacePropagatorHt(FermionField &out,const Fe
 
 template<class Impl>
 void WilsonFermion5D<Impl>::MomentumSpacePropagatorHw(FermionField &out,const FermionField &in,RealD mass,std::vector<double> twist)
-{
-  std::vector<double> empty_q(Nd,0.0);
-  MomentumSpacePropagatorHwQ(out,in,mass,twist,empty_q);
-}
-template<class Impl>
-void WilsonFermion5D<Impl>::MomentumSpacePropagatorHwQ(FermionField &out,const FermionField &in,
-						       RealD mass,
-						       std::vector<double> twist,
-						       std::vector<double> qmu)
 {
     Gamma::Algebra Gmu [] = {
       Gamma::Algebra::GammaX,
@@ -793,7 +750,6 @@ void WilsonFermion5D<Impl>::MomentumSpacePropagatorHwQ(FermionField &out,const F
     typedef typename FermionField::scalar_type ScalComplex;
 
     typedef Lattice<iSinglet<vector_type> > LatComplex;
-    typedef iSpinMatrix<ScalComplex> SpinMat;
 
 
     Coordinate latt_size   = _grid->_fdimensions;
@@ -811,10 +767,8 @@ void WilsonFermion5D<Impl>::MomentumSpacePropagatorHwQ(FermionField &out,const F
     LatComplex kmu(_grid); 
     ScalComplex ci(0.0,1.0);
 
-    std::cout<< "Feynman Rule" << "qmu ("<<qmu[0]<<","<<qmu[1]<<","<<qmu[2]<<","<<qmu[3]<<")"<<std::endl;
-    
     for(int mu=0;mu<Nd;mu++) {
-      
+
       LatticeCoordinate(kmu,mu);
 
       RealD TwoPiL =  M_PI * 2.0/ latt_size[mu];
@@ -823,18 +777,9 @@ void WilsonFermion5D<Impl>::MomentumSpacePropagatorHwQ(FermionField &out,const F
       kmu = kmu + TwoPiL * one * twist[mu];//momentum for twisted boundary conditions
 
       sk2 = sk2 + 2.0*sin(kmu*0.5)*sin(kmu*0.5);
+      sk  = sk  + sin(kmu)*sin(kmu); 
 
-      sk = sk + (sin(kmu)+qmu[mu])*(sin(kmu)+qmu[mu]); 
-
-      // Terms for boosted Fermion
-      // 1/2 [ -i gamma.(sin p + q )     ]
-      //     [ --------------------- + 1 ]
-      //     [         wq + b            ]
-      //
-      // wq = sqrt( (sinp+q)^2 + b^2 )
-      //
-      
-      num = num - (sin(kmu)+qmu[mu])*ci*(Gamma(Gmu[mu])*in);
+      num = num - sin(kmu)*ci*(Gamma(Gmu[mu])*in);
 
     }
     num = num + mass * in ;

Grid/qcd/action/fermion/implementation/WilsonFermionImplementation.h

@@ -52,12 +52,17 @@ WilsonFermion<Impl>::WilsonFermion(GaugeField &_Umu, GridCartesian &Fgrid,
     StencilEven(&Hgrid, npoint, Even, directions,displacements,p),  // source is Even
     StencilOdd(&Hgrid, npoint, Odd, directions,displacements,p),  // source is Odd
     mass(_mass),
+    Lebesgue(_grid),
+    LebesgueEvenOdd(_cbgrid),
     Umu(&Fgrid),
     UmuEven(&Hgrid),
     UmuOdd(&Hgrid),
       _tmp(&Hgrid),
       anisotropyCoeff(anis)
 {
+  Stencil.lo     = &Lebesgue;
+  StencilEven.lo = &LebesgueEvenOdd;
+  StencilOdd.lo  = &LebesgueEvenOdd;
   // Allocate the required comms buffer
   ImportGauge(_Umu);
   if  (anisotropyCoeff.isAnisotropic){
@@ -309,7 +314,7 @@ void WilsonFermion<Impl>::Dhop(const FermionField &in, FermionField &out, int da
 
   out.Checkerboard() = in.Checkerboard();
 
-  DhopInternal(Stencil, Umu, in, out, dag);
+  DhopInternal(Stencil, Lebesgue, Umu, in, out, dag);
 }
 
 template <class Impl>
@@ -321,7 +326,7 @@ void WilsonFermion<Impl>::DhopOE(const FermionField &in, FermionField &out, int
   assert(in.Checkerboard() == Even);
   out.Checkerboard() = Odd;
 
-  DhopInternal(StencilEven, UmuOdd, in, out, dag);
+  DhopInternal(StencilEven, LebesgueEvenOdd, UmuOdd, in, out, dag);
 }
 
 template <class Impl>
@@ -333,7 +338,7 @@ void WilsonFermion<Impl>::DhopEO(const FermionField &in, FermionField &out,int d
   assert(in.Checkerboard() == Odd);
   out.Checkerboard() = Even;
 
-  DhopInternal(StencilOdd, UmuEven, in, out, dag);
+  DhopInternal(StencilOdd, LebesgueEvenOdd, UmuEven, in, out, dag);
 }
 
 template <class Impl>
@@ -386,21 +391,21 @@ void WilsonFermion<Impl>::DhopDirCalc(const FermionField &in, FermionField &out,
 };
 
 template <class Impl>
-void WilsonFermion<Impl>::DhopInternal(StencilImpl &st, 
+void WilsonFermion<Impl>::DhopInternal(StencilImpl &st, LebesgueOrder &lo,
                                        DoubledGaugeField &U,
                                        const FermionField &in,
                                        FermionField &out, int dag)
 {
 #ifdef GRID_OMP
   if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsAndCompute )
-    DhopInternalOverlappedComms(st,U,in,out,dag);
+    DhopInternalOverlappedComms(st,lo,U,in,out,dag);
   else
 #endif
-    DhopInternalSerial(st,U,in,out,dag);
+    DhopInternalSerial(st,lo,U,in,out,dag);
 }
 
 template <class Impl>
-void WilsonFermion<Impl>::DhopInternalOverlappedComms(StencilImpl &st, 
+void WilsonFermion<Impl>::DhopInternalOverlappedComms(StencilImpl &st, LebesgueOrder &lo,
 						      DoubledGaugeField &U,
 						      const FermionField &in,
 						      FermionField &out, int dag)
@@ -469,10 +474,10 @@ void WilsonFermion<Impl>::DhopInternalOverlappedComms(StencilImpl &st,
 
 
 template <class Impl>
-void WilsonFermion<Impl>::DhopInternalSerial(StencilImpl &st, 
-					     DoubledGaugeField &U,
-					     const FermionField &in,
-					     FermionField &out, int dag)
+void WilsonFermion<Impl>::DhopInternalSerial(StencilImpl &st, LebesgueOrder &lo,
+                                       DoubledGaugeField &U,
+                                       const FermionField &in,
+                                       FermionField &out, int dag)
 {
   GRID_TRACE("DhopSerial");
   assert((dag == DaggerNo) || (dag == DaggerYes));

Grid/qcd/action/fermion/implementation/WilsonKernelsAsmAvx512.h

@@ -40,11 +40,11 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
 /// Switch off the 5d vectorised code optimisations
 #undef DWFVEC5D
 
-static std::vector<vComplexF> signsF;
+static Vector<vComplexF> signsF;
 
   template<typename vtype>    
-  int setupSigns(std::vector<vtype>& signs ){
-    std::vector<vtype> bother(2);
+  int setupSigns(Vector<vtype>& signs ){
+    Vector<vtype> bother(2);
     signs = bother;
     vrsign(signs[0]);
     visign(signs[1]);
@@ -364,7 +364,7 @@ WilsonKernels<ZDomainWallVec5dImplF>::AsmDhopSiteDagExt(StencilView &st, Doubled
 
 #include <simd/Intel512double.h>
     
-static std::vector<vComplexD> signsD;
+static Vector<vComplexD> signsD;
 static int signInitD = setupSigns(signsD);
     
 #define MAYBEPERM(A,perm) if (perm) { A ; }

Grid/qcd/action/fermion/implementation/WilsonKernelsImplementation.h

@@ -411,46 +411,6 @@ void WilsonKernels<Impl>::DhopDirKernel( StencilImpl &st, DoubledGaugeField &U,S
 #undef LoopBody
 }
 
-#ifdef GRID_SYCL
-extern "C" {
-    ulong SYCL_EXTERNAL __attribute__((overloadable)) intel_get_cycle_counter( void );
-    uint  SYCL_EXTERNAL __attribute__((overloadable)) intel_get_active_channel_mask( void );
-    uint  SYCL_EXTERNAL __attribute__((overloadable)) intel_get_grf_register( uint reg );
-    uint  SYCL_EXTERNAL __attribute__((overloadable)) intel_get_flag_register( uint flag );
-    uint  SYCL_EXTERNAL __attribute__((overloadable)) intel_get_control_register( uint reg );
-    uint  SYCL_EXTERNAL __attribute__((overloadable)) intel_get_hw_thread_id( void );
-    uint  SYCL_EXTERNAL __attribute__((overloadable)) intel_get_slice_id( void );
-    uint  SYCL_EXTERNAL __attribute__((overloadable)) intel_get_subslice_id( void );
-    uint  SYCL_EXTERNAL __attribute__((overloadable)) intel_get_eu_id( void );
-    uint  SYCL_EXTERNAL __attribute__((overloadable)) intel_get_eu_thread_id( void );
-    void  SYCL_EXTERNAL __attribute__((overloadable)) intel_eu_thread_pause( uint value );
-}
-#ifdef GRID_SIMT
-#define MAKE_ID(A) (intel_get_eu_id()<<16)|(intel_get_slice_id()<<8)|(intel_get_subslice_id())
-#else
-#define MAKE_ID(A) (0)
-#endif
-
-#else
-
-#define MAKE_ID(A) (0)
-
-#endif
-
-
-#define KERNEL_CALL_ID(A)						\
-  const uint64_t    NN = Nsite*Ls;					\
-  accelerator_forNB( ss, NN, Simd::Nsimd(), {				\
-      int sF = ss;							\
-      int sU = ss/Ls;							\
-      WilsonKernels<Impl>::A(st_v,U_v,buf,sF,sU,in_v,out_v);		\
-      const int Nsimd = SiteHalfSpinor::Nsimd();			\
-      const int lane=acceleratorSIMTlane(Nsimd);                        \
-      int idx=sF*Nsimd+lane;						\
-      uint64_t id = MAKE_ID();						\
-      ids[idx]=id;							\
-    });									\
-  accelerator_barrier();
 
 #define KERNEL_CALLNB(A)						\
   const uint64_t    NN = Nsite*Ls;					\
@@ -458,7 +418,7 @@ extern "C" {
       int sF = ss;							\
       int sU = ss/Ls;							\
       WilsonKernels<Impl>::A(st_v,U_v,buf,sF,sU,in_v,out_v);		\
-    });
+  });
 
 #define KERNEL_CALL(A) KERNEL_CALLNB(A); accelerator_barrier();
 
@@ -474,7 +434,7 @@ extern "C" {
 
 #define ASM_CALL(A)							\
   thread_for( sss, Nsite, {						\
-    int ss = sss; /*st.lo->Reorder(sss);*/			\
+    int ss = st.lo->Reorder(sss);					\
     int sU = ss;							\
     int sF = ss*Ls;							\
     WilsonKernels<Impl>::A(st_v,U_v,buf,sF,sU,Ls,1,in_v,out_v);		\
@@ -491,8 +451,6 @@ extern "C" {
     WilsonKernels<Impl>::A(st_v,U_v,buf,sF,sU,Ls,1,in_v,out_v);		\
     });}
 
-
-
 template <class Impl>
 void WilsonKernels<Impl>::DhopKernel(int Opt,StencilImpl &st,  DoubledGaugeField &U, SiteHalfSpinor * buf,
 				     int Ls, int Nsite, const FermionField &in, FermionField &out,
@@ -504,7 +462,7 @@ void WilsonKernels<Impl>::DhopKernel(int Opt,StencilImpl &st,  DoubledGaugeField
     autoView(st_v , st,AcceleratorRead);
 
    if( interior && exterior ) {
-     //     acceleratorFenceComputeStream();
+     acceleratorFenceComputeStream();
      if (Opt == WilsonKernelsStatic::OptGeneric    ) { KERNEL_CALL(GenericDhopSite); return;}
      if (Opt == WilsonKernelsStatic::OptHandUnroll ) { KERNEL_CALL(HandDhopSite);    return;}
 #ifndef GRID_CUDA
@@ -517,7 +475,7 @@ void WilsonKernels<Impl>::DhopKernel(int Opt,StencilImpl &st,  DoubledGaugeField
      if (Opt == WilsonKernelsStatic::OptInlineAsm  ) {  ASM_CALL(AsmDhopSiteInt);    return;}
 #endif
    } else if( exterior ) {
-     //     // dependent on result of merge
+     // dependent on result of merge
      acceleratorFenceComputeStream();
      if (Opt == WilsonKernelsStatic::OptGeneric    ) { KERNEL_CALL_EXT(GenericDhopSiteExt); return;}
      if (Opt == WilsonKernelsStatic::OptHandUnroll ) { KERNEL_CALL_EXT(HandDhopSiteExt);    return;}
@@ -527,18 +485,6 @@ void WilsonKernels<Impl>::DhopKernel(int Opt,StencilImpl &st,  DoubledGaugeField
    }
    assert(0 && " Kernel optimisation case not covered ");
   }
-
-template <class Impl>
-void WilsonKernels<Impl>::DhopKernel(int Opt,StencilImpl &st,  DoubledGaugeField &U, SiteHalfSpinor * buf,
-				     int Ls, int Nsite, const FermionField &in, FermionField &out,
-				     uint64_t *ids)
-{
-    autoView(U_v  ,  U,AcceleratorRead);
-    autoView(in_v , in,AcceleratorRead);
-    autoView(out_v,out,AcceleratorWrite);
-    autoView(st_v , st,AcceleratorRead);
-    KERNEL_CALL_ID(GenericDhopSite);
-}
   template <class Impl>
   void WilsonKernels<Impl>::DhopDagKernel(int Opt,StencilImpl &st,  DoubledGaugeField &U, SiteHalfSpinor * buf,
 					  int Ls, int Nsite, const FermionField &in, FermionField &out,

Grid/qcd/action/gauge/PlaqPlusRectangleAction.h

@@ -40,11 +40,6 @@ public:
 
   INHERIT_GIMPL_TYPES(Gimpl);
 
-  using Action<GaugeField>::S;
-  using Action<GaugeField>::Sinitial;
-  using Action<GaugeField>::deriv;
-  using Action<GaugeField>::refresh;
-
 private:
   RealD c_plaq;
   RealD c_rect;

Grid/qcd/action/gauge/WilsonGaugeAction.h

@@ -43,11 +43,6 @@ class WilsonGaugeAction : public Action<typename Gimpl::GaugeField> {
 public:  
   INHERIT_GIMPL_TYPES(Gimpl);
 
-  using Action<GaugeField>::S;
-  using Action<GaugeField>::Sinitial;
-  using Action<GaugeField>::deriv;
-  using Action<GaugeField>::refresh;
-  
   /////////////////////////// constructors
   explicit WilsonGaugeAction(RealD beta_):beta(beta_){};
 

Grid/qcd/representations/adjoint.h

@@ -40,7 +40,7 @@ public:
     U = Zero();
     LatticeColourMatrix tmp(Uin.Grid());
 
-    std::vector<typename SU<ncolour>::Matrix> ta(Dimension);
+    Vector<typename SU<ncolour>::Matrix> ta(Dimension);
 
     // Debug lines
     // LatticeMatrix uno(Uin.Grid());

Grid/qcd/representations/two_index.h

@@ -43,7 +43,7 @@ public:
     U = Zero();
     LatticeColourMatrix tmp(Uin.Grid());
 
-    std::vector<typename GaugeGroup<ncolour,group_name>::Matrix> eij(Dimension);
+    Vector<typename GaugeGroup<ncolour,group_name>::Matrix> eij(Dimension);
 
     for (int a = 0; a < Dimension; a++)
       GaugeGroupTwoIndex<ncolour, S, group_name>::base(a, eij[a]);

Grid/qcd/smearing/GaugeConfigurationMasked.h

@@ -32,7 +32,9 @@ private:
   //  Smear_Stout<Gimpl> *StoutSmearing;
   //  std::vector<GaugeField> SmearedSet;
   
+  GridRedBlackCartesian * UrbGrid; // keep a copy of the redblack grid for life of object
   std::vector<LatticeLorentzComplex> masks;
+  std::vector<int> cbs;
 
   typedef typename SU3Adjoint::AMatrix AdjMatrix;
   typedef typename SU3Adjoint::LatticeAdjMatrix  AdjMatrixField;
@@ -147,6 +149,25 @@ private:
     }
     pokeLorentz(Fdet, Fdet_pol, nu);
   }
+
+  void Compute_MpInvJx_dNxxdSy(int cb,
+			       const GaugeLinkField &PlaqL,
+			       const GaugeLinkField &PlaqR,
+			       AdjMatrixField MpInvJx,
+			       AdjVectorField &Fdet2 )
+  {
+    GaugeLinkField PlaqLeo(UrbGrid);
+    GaugeLinkField PlaqReo(UrbGrid);
+    AdjMatrixField MpInvJxeo(UrbGrid);
+    AdjVectorField Fdet2eo(UrbGrid);
+    pickCheckerboard(cb,PlaqLeo,PlaqL);
+    pickCheckerboard(cb,PlaqReo,PlaqR);
+    pickCheckerboard(cb,MpInvJxeo,MpInvJx);
+    Fdet2eo.Checkerboard()=cb;
+    Compute_MpInvJx_dNxxdSy(PlaqLeo,PlaqReo,MpInvJxeo,Fdet2eo);
+    setCheckerboard(Fdet2,Fdet2eo);
+  }
+  
   void Compute_MpInvJx_dNxxdSy(const GaugeLinkField &PlaqL,const GaugeLinkField &PlaqR, AdjMatrixField MpInvJx,AdjVectorField &Fdet2 )
   {
     GaugeLinkField UtaU(PlaqL.Grid());
@@ -278,8 +299,9 @@ public:
     ////////////////////////////////////////////////////////////////////////////////
     // Mask the gauge field
     ////////////////////////////////////////////////////////////////////////////////
+    int cb = cbs[smr];
     auto mask=PeekIndex<LorentzIndex>(masks[smr],mu); // the cb mask
-
+    
     Umsk = U;
     ApplyMask(Umsk,smr);
     Utmp = peekLorentz(Umsk,mu);
@@ -442,7 +464,7 @@ public:
     AdjMatrixField MpInvJx_nu(grid);
     MpInvJx = (-1.0)*MpAdInv * JxAd;// rho is on the plaq factor
 
-    Compute_MpInvJx_dNxxdSy(PlaqL,PlaqR,MpInvJx,FdetV);
+    Compute_MpInvJx_dNxxdSy(cb,PlaqL,PlaqR,MpInvJx,FdetV);
     Fdet2_mu=FdetV;
     Fdet1_mu=Zero();
     
@@ -499,7 +521,7 @@ public:
 
 	time=-usecond();
 	PlaqR=(-1.0)*PlaqR;
-	Compute_MpInvJx_dNxxdSy(PlaqL,PlaqR,MpInvJx,FdetV);
+	Compute_MpInvJx_dNxxdSy(cb,PlaqL,PlaqR,MpInvJx,FdetV);
 	Fdet2_nu = FdetV;
 	time+=usecond();
 	std::cout << GridLogMessage << "Compute_MpInvJx_dNxxSy (occurs 6x) took "<<time<< " us"<<std::endl;
@@ -520,7 +542,7 @@ public:
 	
 
 	MpInvJx_nu = Cshift(MpInvJx,mu,-1);
-	Compute_MpInvJx_dNxxdSy(PlaqL,PlaqR,MpInvJx_nu,FdetV);
+	Compute_MpInvJx_dNxxdSy(cb,PlaqL,PlaqR,MpInvJx_nu,FdetV);
 	Fdet2_nu = Fdet2_nu+FdetV;
 	
 	///////////////// -ve nu /////////////////
@@ -539,7 +561,7 @@ public:
 	Fdet1_nu = Fdet1_nu + transpose(Nxy)*dJdXe_nMpInv_y;
 
 	MpInvJx_nu = Cshift(MpInvJx,nu,1);
-	Compute_MpInvJx_dNxxdSy(PlaqL,PlaqR,MpInvJx_nu,FdetV);
+	Compute_MpInvJx_dNxxdSy(cb,PlaqL,PlaqR,MpInvJx_nu,FdetV);
 	Fdet2_nu = Fdet2_nu+FdetV;
 	
 	// x==
@@ -560,7 +582,7 @@ public:
 
 	MpInvJx_nu = Cshift(MpInvJx,mu,-1);
 	MpInvJx_nu = Cshift(MpInvJx_nu,nu,1);
-	Compute_MpInvJx_dNxxdSy(PlaqL,PlaqR,MpInvJx_nu,FdetV);
+	Compute_MpInvJx_dNxxdSy(cb,PlaqL,PlaqR,MpInvJx_nu,FdetV);
 	Fdet2_nu = Fdet2_nu+FdetV;
 
 	/////////////////////////////////////////////////////////////////////
@@ -589,7 +611,7 @@ public:
 
 	MpInvJx_nu = Cshift(MpInvJx,nu,-1);
 
-	Compute_MpInvJx_dNxxdSy(PlaqL,PlaqR,MpInvJx_nu,FdetV);
+	Compute_MpInvJx_dNxxdSy(cb,PlaqL,PlaqR,MpInvJx_nu,FdetV);
 	Fdet2_mu = Fdet2_mu+FdetV;
 
 	//  __
@@ -609,7 +631,7 @@ public:
 
 	MpInvJx_nu = Cshift(MpInvJx,nu,1);
 
-	Compute_MpInvJx_dNxxdSy(PlaqL,PlaqR,MpInvJx_nu,FdetV);
+	Compute_MpInvJx_dNxxdSy(cb,PlaqL,PlaqR,MpInvJx_nu,FdetV);
 	Fdet2_mu = Fdet2_mu+FdetV;
 	
       }
@@ -931,6 +953,10 @@ private:
 public:
 
   /* Standard constructor */
+  virtual ~SmearedConfigurationMasked()
+  {
+    delete UrbGrid;
+  }
   SmearedConfigurationMasked(GridCartesian* _UGrid, unsigned int Nsmear, Smear_Stout<Gimpl>& Stout)
     : SmearedConfiguration<Gimpl>(_UGrid, Nsmear,Stout)
   {
@@ -939,7 +965,6 @@ public:
     // was resized in base class
     assert(this->SmearedSet.size()==Nsmear);
     
-    GridRedBlackCartesian * UrbGrid;
     UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(_UGrid);
     LatticeComplex one(_UGrid); one = ComplexD(1.0,0.0);
     LatticeComplex tmp(_UGrid);
@@ -947,10 +972,11 @@ public:
     for (unsigned int i = 0; i < this->smearingLevels; ++i) {
 
       masks.push_back(*(new LatticeLorentzComplex(_UGrid)));
-
       int mu= (i/2) %Nd;
       int cb= (i%2);
       LatticeComplex tmpcb(UrbGrid);
+
+      cbs.push_back(cb);
 	
       masks[i]=Zero();
       ////////////////////
@@ -962,7 +988,6 @@ public:
       PokeIndex<LorentzIndex>(masks[i],tmp, mu);
 	
     }
-    delete UrbGrid;
   }
   
   virtual void smeared_force(GaugeField &SigmaTilde)