Merge 570b72a47b into 3f3661a86f

Removes dependence on MPI_Allreduce and allows for work around on
systems where this is bollox.

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/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

@@ -144,11 +144,11 @@ public:
       acceleratorCopyDeviceToDevice(&BLAS_Y[offset],&y_v[0],sizeof(scalar_object)*vol);
     }    
     RealD t4 = usecond();
-    std::cout << "MulMatrix alloc    took "<< t1-t0<<" us"<<std::endl;
-    std::cout << "MulMatrix preamble took "<< t2-t1<<" us"<<std::endl;
-    std::cout << "MulMatrix blas     took "<< t3-t2<<" us"<<std::endl;
-    std::cout << "MulMatrix copy     took "<< t4-t3<<" us"<<std::endl;
-    std::cout << "MulMatrix total "<< t4-t0<<" us"<<std::endl;
+    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)
@@ -242,16 +242,16 @@ public:
     RealD flops = 8.0*M*N*K;
     flops = flops/(t4-t3)/1.e3;
     bytes = bytes/(t4-t3)/1.e3;
-    std::cout << "InnerProductMatrix m,n,k "<< M<<","<<N<<","<<K<<std::endl;
-    std::cout << "InnerProductMatrix alloc t1 "<< t1-t0<<" us"<<std::endl;
-    std::cout << "InnerProductMatrix cp    t2 "<< t2-t1<<" us"<<std::endl;
-    std::cout << "InnerProductMatrix setup t3 "<< t3-t2<<" us"<<std::endl;
-    std::cout << "InnerProductMatrix blas t4 "<< t4-t3<<" us"<<std::endl;
-    std::cout << "InnerProductMatrix blas    "<< flops<<" GF/s"<<std::endl;
-    std::cout << "InnerProductMatrix blas    "<< bytes<<" GB/s"<<std::endl;
-    std::cout << "InnerProductMatrix gsum t5 "<< t5-t4<<" us"<<std::endl;
-    std::cout << "InnerProductMatrix cp   t6 "<< t6-t5<<" us"<<std::endl;
-    std::cout << "InnerProductMatrix took "<< t6-t0<<" us"<<std::endl;
+    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;
@@ -358,17 +358,17 @@ public:
     flops = flops/(t4-t3)/1.e3;
     bytes = bytes/(t4-t3)/1.e3;
     xybytes = 4*xybytes/(t2-t1)/1.e3;
-    std::cout << "InnerProductMatrix m,n,k "<< M<<","<<N<<","<<K<<std::endl;
-    std::cout << "InnerProductMatrix alloc t1 "<< t1-t0<<" us"<<std::endl;
-    std::cout << "InnerProductMatrix cp    t2 "<< t2-t1<<" us "<<xybytes<<" GB/s"<<std::endl;
-    std::cout << "InnerProductMatrix setup t3 "<< t3-t2<<" us"<<std::endl;
-    std::cout << "InnerProductMatrix blas t4 "<< t4-t3<<" us"<<std::endl;
-    std::cout << "InnerProductMatrix blas    "<< flops<<" GF/s"<<std::endl;
-    std::cout << "InnerProductMatrix blas    "<< bytes<<" GB/s"<<std::endl;
-    std::cout << "InnerProductMatrix cp     t5 "<< t5-t4<<" us"<<std::endl;
-    std::cout << "InnerProductMatrix lsum   t6l "<< t6l-t5<<" us"<<std::endl;
-    std::cout << "InnerProductMatrix gsum   t6 "<< t6-t6l<<" us"<<std::endl;
-    std::cout << "InnerProductMatrix took "<< t6-t0<<" us"<<std::endl;
+    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
   }
 };

Grid/algorithms/iterative/AdefMrhs.h

@@ -63,7 +63,12 @@ class TwoLevelCGmrhs
   GridStopWatch SmoothTimer;
   GridStopWatch InsertTimer;
 
-  
+  /*
+    Field rrr;
+  Field sss;
+  Field qqq;
+  Field zzz;
+  */  
   // more most opertor functions
   TwoLevelCGmrhs(RealD tol,
 		 Integer maxit,
@@ -74,6 +79,12 @@ class TwoLevelCGmrhs
     MaxIterations(maxit),
     _FineLinop(FineLinop),
     _Smoother(Smoother)
+    /*
+    rrr(fine),
+    sss(fine),
+    qqq(fine),
+    zzz(fine)
+*/
   {
     grid       = fine;
   };
@@ -81,8 +92,8 @@ class TwoLevelCGmrhs
   // Vector case
   virtual void operator() (std::vector<Field> &src, std::vector<Field> &x)
   {
-    SolveSingleSystem(src,x);
-    //    SolvePrecBlockCG(src,x);
+    //    SolveSingleSystem(src,x);
+    SolvePrecBlockCG(src,x);
   }
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -657,6 +668,8 @@ 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();
@@ -669,6 +682,7 @@ public:
       this->SmoothTimer.Stop();
     }
 #endif
+    //    this->sss=Min[0];
     
     for(int rhs=0;rhs<nrhs;rhs++) {
       
@@ -705,9 +719,11 @@ 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();
   }
 };

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/ImplicitlyRestartedLanczos.h

@@ -245,9 +245,10 @@ until convergence
 	_HermOp(src_n,tmp);
 	//	std::cout << GridLogMessage<< tmp<<std::endl; exit(0);
 	//	std::cout << GridLogIRL << " _HermOp " << norm2(tmp) << std::endl;
-	RealD vnum = real(innerProduct(src_n,tmp)); // HermOp.
+//	RealD vnum = real(innerProduct(src_n,tmp)); // HermOp.
+	RealD vnum = real(innerProduct(tmp,tmp)); // HermOp^2.
 	RealD vden = norm2(src_n);
-	RealD na = vnum/vden;
+	RealD na = std::sqrt(vnum/vden);
 	if (fabs(evalMaxApprox/na - 1.0) < 0.0001)
 	  i=_MAX_ITER_IRL_MEVAPP_;
 	evalMaxApprox = na;
@@ -255,6 +256,7 @@ until convergence
 	src_n = tmp;
       }
     }
+    std::cout << GridLogIRL << " Final evalMaxApprox  " << evalMaxApprox << std::endl;
 	
     std::vector<RealD> lme(Nm);  
     std::vector<RealD> lme2(Nm);

Grid/algorithms/multigrid/Aggregates.h

@@ -228,6 +228,70 @@ 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

@@ -174,11 +174,21 @@ 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> >;               // 
-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
 {
  protected:
@@ -187,9 +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();
@@ -205,15 +214,26 @@ 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);
+*/
 
 NAMESPACE_END(Grid);
 

Grid/allocator/MemoryManagerCache.cc

@@ -1,15 +1,17 @@
 #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(...) 
 
+
 ////////////////////////////////////////////////////////////
 // For caching copies of data on device
 ////////////////////////////////////////////////////////////
@@ -167,7 +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\n",(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;
@@ -182,9 +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\n",
-	  (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++;
@@ -265,7 +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\n",
+    dprintf("ViewOpen found entry %lx %lx : %ld %ld accLock %ld\n",
 		    (uint64_t)AccCache.CpuPtr,
 		    (uint64_t)CpuPtr,
 		    (uint64_t)AccCache.bytes,

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/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

@@ -127,7 +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;
@@ -136,7 +136,7 @@ public:
     for(int d=0;d<_ndimension;d++){
       column.resize(_processors[d]);
       column[0] = accum;
-      std::vector<MpiCommsRequest_t> list;
+      std::vector<CommsRequest_t> list;
       for(int p=1;p<_processors[d];p++){
 	ShiftedRanks(d,p,source,dest);
 	SendToRecvFromBegin(list,
@@ -166,8 +166,8 @@ 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,
@@ -186,12 +186,6 @@ 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);
   double StencilSendToRecvFromBegin(std::vector<CommsRequest_t> &list,
 				    void *xmit,
 				    int xmit_to_rank,int do_xmit,

Grid/communicator/Communicator_mpi3.cc

@@ -257,25 +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);
@@ -306,18 +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,
@@ -342,7 +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();
 
@@ -361,7 +351,7 @@ 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);
 
@@ -391,23 +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
-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,
@@ -431,7 +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;
@@ -440,9 +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);
@@ -450,14 +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();
@@ -465,254 +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 ) {
-#undef DEVICE_TO_HOST_CONCURRENT // pipeline
-#ifdef DEVICE_TO_HOST_CONCURRENT
-      tag= dir+_processor*32;
-
-      host_xmit = this->HostBufferMalloc(xbytes);
-      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;
-
-      CommsRequest_t srq;
-      srq.PacketType = InterNodeXmit;
-      srq.bytes      = xbytes;
-      //      srq.req        = xrq;
-      srq.host_buf   = host_xmit;
-      srq.device_buf = xmit;
-      list.push_back(srq);
-#else
-      tag= dir+_processor*32;
-
-      host_xmit = this->HostBufferMalloc(xbytes);
-      const int chunks=1;
-      for(int n=0;n<chunks;n++){
-	void * host_xmitc = (void *)( (uint64_t) host_xmit + n*xbytes/chunks);
-	void * xmitc      = (void *)( (uint64_t) xmit      + n*xbytes/chunks);
-	acceleratorCopyFromDeviceAsynch(xmitc, host_xmitc,xbytes/chunks); // Make this Asynch
-      }
-      acceleratorCopySynchronise(); // Complete all pending copy transfers
-      
-      ierr =MPI_Isend(host_xmit, xbytes, MPI_CHAR,dest,tag,communicator_halo[commdir],&xrq);
-      assert(ierr==0);
-      off_node_bytes+=xbytes;
-
-      CommsRequest_t srq;
-      srq.PacketType = InterNodeXmit;
-      srq.bytes      = xbytes;
-      srq.req        = xrq;
-      srq.host_buf   = host_xmit;
-      srq.device_buf = xmit;
-      list.push_back(srq);
-#endif
-    }
-  }
-
-  return off_node_bytes;
-}
-
-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
-   */
-
-  //  static int printed;
-  //  if((printed<8) && this->IsBoss() ) {
-  //    printf("dir %d doX %d doR %d Face size %ld %ld\n",dir,dox,dor,xbytes,rbytes);
-  //    printed++;
-  //  }
-  
-  if (dox) {
-
-    if ( (gdest == MPI_UNDEFINED) || Stencil_force_mpi ) {
-#ifdef DEVICE_TO_HOST_CONCURRENT
-      tag= dir+_processor*32;
-      // Find the send in the prepared list
-      int list_idx=-1;
-      for(int idx = 0; idx<list.size();idx++){
-
-	if ( (list[idx].device_buf==xmit)
-	   &&(list[idx].PacketType==InterNodeXmit)
-	   &&(list[idx].bytes==xbytes) ) {
-
-	  list_idx = idx;
-	  host_xmit = list[idx].host_buf;
-	}
-      }
-      assert(list_idx != -1); // found it
-      ierr =MPI_Isend(host_xmit, xbytes, MPI_CHAR,dest,tag,communicator_halo[commdir],&xrq);
-      assert(ierr==0);
-      list[list_idx].req        = xrq; // Update the MPI request in the list
-      off_node_bytes+=xbytes;
-#endif      
-    } else {
-      void *shm = (void *) this->ShmBufferTranslate(dest,recv);
-      assert(shm!=NULL);
-      acceleratorCopyDeviceToDeviceAsynch(xmit,shm,xbytes);
-    }
-  }
-  return off_node_bytes;
-}
-void CartesianCommunicator::StencilSendToRecvFromComplete(std::vector<CommsRequest_t> &list,int dir)
-{
-  int nreq=list.size();
-
-  if (nreq==0) return;
-  std::vector<MPI_Status> status(nreq);
-  std::vector<MPI_Request> MpiRequests(nreq);
-
-  for(int r=0;r<nreq;r++){
-    MpiRequests[r] = list[r].req;
-  }
-  
-  int ierr = MPI_Waitall(nreq,&MpiRequests[0],&status[0]);
-  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);
-    }
-  }
-  
-  acceleratorCopySynchronise(); // Complete all pending copy transfers
-  list.resize(0);               // Delete the list
-  this->HostBufferFreeAll();    // Clean up the buffer allocs
-  this->StencilBarrier(); 
-}
-#endif
-////////////////////////////////////////////
-// END PIPELINE MODE / NO CUDA AWARE MPI
-////////////////////////////////////////////
-
 void CartesianCommunicator::StencilBarrier(void)
 {
   MPI_Barrier  (ShmComm);

Grid/communicator/Communicator_none.cc

@@ -132,15 +132,6 @@ double CartesianCommunicator::StencilSendToRecvFrom( void *xmit,
 {
   return 2.0*bytes;
 }
-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 xbytes+rbytes;
-}
 double CartesianCommunicator::StencilSendToRecvFromBegin(std::vector<CommsRequest_t> &list,
 							 void *xmit,
 							 int xmit_to_rank,int dox,

Grid/communicator/SharedMemory.h

@@ -46,22 +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
-enum PacketType_t { InterNodeXmit, InterNodeRecv, IntraNodeXmit, IntraNodeRecv };
-typedef struct {
-  PacketType_t PacketType;
-  void *host_buf;
-  void *device_buf;
-  unsigned long bytes;
-  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;
@@ -55,20 +55,20 @@ 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;
 }
-#if 1
+
 template<class vobj> void Cshift_comms(Lattice<vobj>& ret,const Lattice<vobj> &rhs,int dimension,int shift)
 {
   int sshift[2];
@@ -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;
@@ -123,8 +125,8 @@ 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);
+  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);
@@ -159,7 +161,7 @@ template<class vobj> void Cshift_comms(Lattice<vobj> &ret,const Lattice<vobj> &r
       grid->ShiftedRanks(dimension,comm_proc,xmit_to_rank,recv_from_rank);
       
       tcomms-=usecond();
-      grid->Barrier();
+      //      grid->Barrier();
 
       grid->SendToRecvFrom((void *)&send_buf[0],
 			   xmit_to_rank,
@@ -167,7 +169,7 @@ template<class vobj> void Cshift_comms(Lattice<vobj> &ret,const Lattice<vobj> &r
 			   recv_from_rank,
 			   bytes);
       xbytes+=bytes;
-      grid->Barrier();
+      //      grid->Barrier();
       tcomms+=usecond();
 
       tscatter-=usecond();
@@ -175,13 +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)
@@ -199,9 +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);
@@ -222,8 +224,8 @@ 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;
  
@@ -279,7 +281,7 @@ 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];
@@ -290,7 +292,7 @@ template<class vobj> void  Cshift_comms_simd(Lattice<vobj> &ret,const Lattice<vo
 			     bytes);
 
 	xbytes+=bytes;
-	grid->Barrier();
+	//	grid->Barrier();
 	tcomms+=usecond();
 
 	rpointers[i] = &recv_buf_extract[i][0];
@@ -303,13 +305,13 @@ 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)
@@ -398,13 +400,13 @@ 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)
@@ -530,16 +532,15 @@ template<class vobj> void  Cshift_comms_simd(Lattice<vobj> &ret,const Lattice<vo
     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"<<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"<<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

@@ -237,12 +237,9 @@ public:
     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);
+	auto stmp=coalescedRead(vtmp);
 	coalescedWrite(me[ss],stmp);
     });
 #else    

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_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> 
@@ -601,8 +552,8 @@ 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

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/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,
@@ -462,13 +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);
 
-    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);

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) 

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,
@@ -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/utils/BaryonUtils.h

@@ -971,9 +971,7 @@ void BaryonUtils<FImpl>::BaryonGamma3pt(
   autoView( vq_ti , q_ti     , AcceleratorRead);
   autoView( vq_tf , q_tf     , AcceleratorRead);
 
-  deviceVector<mobj> my_Dq_spec(2);
-  acceleratorPut(my_Dq_spec[0],Dq_spec1);
-  acceleratorPut(my_Dq_spec[1],Dq_spec2);
+  Vector<mobj> my_Dq_spec{Dq_spec1,Dq_spec2};
   mobj * Dq_spec_p = &my_Dq_spec[0];
 
   if (group == 1) {
@@ -1302,8 +1300,7 @@ void BaryonUtils<FImpl>::SigmaToNucleonEye(const PropagatorField &qq_loop,
   autoView( vd_tf   , qd_tf    , AcceleratorRead);
   autoView( vs_ti   , qs_ti    , AcceleratorRead);
 
-  deviceVector<mobj> my_Dq_spec(1);
-  acceleratorPut(my_Dq_spec[0],Du_spec);
+  Vector<mobj> my_Dq_spec{Du_spec};
   mobj * Dq_spec_p = &my_Dq_spec[0];
 
   if(op == "Q1"){
@@ -1356,8 +1353,7 @@ void BaryonUtils<FImpl>::SigmaToNucleonNonEye(const PropagatorField &qq_ti,
   autoView( vd_tf , qd_tf    , AcceleratorRead  );
   autoView( vs_ti , qs_ti    , AcceleratorRead  );
   
-  deviceVector<mobj> my_Dq_spec(1);
-  acceleratorPut(my_Dq_spec[0],Du_spec);
+  Vector<mobj> my_Dq_spec{Du_spec};
   mobj * Dq_spec_p = &my_Dq_spec[0];
 
   if(op == "Q1"){
@@ -1548,9 +1544,7 @@ void BaryonUtils<FImpl>::XiToSigmaEye(const PropagatorField &qq_loop,
   autoView( vd_tf   , qd_tf    , AcceleratorRead);
   autoView( vs_ti   , qs_ti    , AcceleratorRead);
 
-  deviceVector<mobj> my_Dq_spec(2);
-  acceleratorPut(my_Dq_spec[0],Dd_spec);
-  acceleratorPut(my_Dq_spec[0],Ds_spec);
+  Vector<mobj> my_Dq_spec{Dd_spec,Ds_spec};
   mobj * Dq_spec_p = &my_Dq_spec[0];
 
   if(op == "Q1"){

Grid/qcd/utils/SUn.impl.h

@@ -118,7 +118,7 @@ static void generatorDiagonal(int diagIndex, iGroupMatrix<cplx> &ta) {
 ////////////////////////////////////////////////////////////////////////
 // Map a su2 subgroup number to the pair of rows that are non zero
 ////////////////////////////////////////////////////////////////////////
-static accelerator_inline void su2SubGroupIndex(int &i1, int &i2, int su2_index, GroupName::SU) {
+static void su2SubGroupIndex(int &i1, int &i2, int su2_index, GroupName::SU) {
   assert((su2_index >= 0) && (su2_index < (ncolour * (ncolour - 1)) / 2));
 
   int spare = su2_index;

Grid/qcd/utils/SUnAdjoint.h

@@ -62,7 +62,7 @@ public:
     // returns i(T_Adj)^index necessary for the projectors
     // see definitions above
     iAdjTa = Zero();
-    iSUnMatrix<cplx> ta[ncolour * ncolour - 1];
+    Vector<iSUnMatrix<cplx> > ta(ncolour * ncolour - 1);
     iSUnMatrix<cplx> tmp;
 
     // FIXME not very efficient to get all the generators everytime

Grid/qcd/utils/Sp2n.impl.h

@@ -207,7 +207,7 @@ static void generatorZtype(int zIndex, iGroupMatrix<cplx> &ta) {
 // Map a su2 subgroup number to the pair of rows that are non zero
 ////////////////////////////////////////////////////////////////////////
 template <ONLY_IF_Sp>
-static accelerator_inline void su2SubGroupIndex(int &i1, int &i2, int su2_index, GroupName::Sp) {
+static void su2SubGroupIndex(int &i1, int &i2, int su2_index, GroupName::Sp) {
   const int nsp=ncolour/2;
   assert((su2_index >= 0) && (su2_index < (nsp * (nsp - 1)) / 2));
 

Grid/stencil/GeneralLocalStencil.h

@@ -72,7 +72,7 @@ public:
   }
 
   // Resident in managed memory
-  deviceVector<GeneralStencilEntry>  _entries; 
+  Vector<GeneralStencilEntry>  _entries; 
 
   GeneralLocalStencil(GridBase *grid, const std::vector<Coordinate> &shifts)
   {
@@ -141,7 +141,7 @@ public:
 	  ////////////////////////////////////////////////
 	  // Store in look up table
 	  ////////////////////////////////////////////////
-	  acceleratorPut(this->_entries[lex],SE);
+	  this->_entries[lex] = SE;
 	}
       });
   }

Grid/stencil/Lebesgue.cc

@@ -1,4 +1,3 @@
-#if 0
 /*************************************************************************************
 
     Grid physics library, www.github.com/paboyle/Grid 
@@ -242,4 +241,3 @@ void LebesgueOrder::ZGraph(void)
 }
 NAMESPACE_END(Grid);
 
-#endif

Grid/stencil/Lebesgue.h

@@ -72,7 +72,7 @@ public:
   void ThreadInterleave(void);
 
 private:
-  deviceVector<IndexInteger> _LebesgueReorder;
+  Vector<IndexInteger> _LebesgueReorder;
 
 };    
 

Grid/stencil/SimpleCompressor.h

@@ -19,7 +19,7 @@ public:
   static int PartialCompressionFactor(GridBase *grid) {return 1;};
   // Decompress is after merge so ok
   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,
@@ -35,7 +35,7 @@ public:
     rhs_v.ViewClose();
   }
   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)
   {
@@ -83,6 +83,25 @@ public:
 // Wilson compressor will add alternate policies for Dirichlet
 // and possibly partial Dirichlet for DWF
 ////////////////////////////////////
+/*
+class FaceGatherDirichlet
+{
+  // If it's dirichlet we don't assemble comms buffers
+  //
+  // Rely on zeroes in gauge field to drive the correct result
+  // NAN propgagation: field will locally wrap, so fermion should NOT contain NAN and just permute
+  template<class vobj,class cobj,class compressor>
+  static void Gather_plane_simple (commVector<std::pair<int,int> >& table,const Lattice<vobj> &rhs,cobj *buffer,compressor &compress, int off,int so){};
+  template<class vobj,class cobj,class compressor>
+  static void Gather_plane_exchange(commVector<std::pair<int,int> >& table,const Lattice<vobj> &rhs,
+				   Vector<cobj *> pointers,int dimension,int plane,int cbmask,
+				   compressor &compress,int type) {}
+  template<class decompressor,class Merger>
+  static void Merge(decompressor decompress,Merge &mm)  {  }
+  template<class decompressor,class Decompression>
+  static void Decompress(decompressor decompress,Decompression &dd) {}
+};
+*/
 
 template<class vobj,class FaceGather>
 class SimpleCompressorGather : public FaceGather {

Grid/stencil/Stencil.h

@@ -31,6 +31,7 @@
 #define STENCIL_MAX (16)
 
 #include <Grid/stencil/SimpleCompressor.h>   // subdir aggregate
+#include <Grid/stencil/Lebesgue.h>   // subdir aggregate
 #include <Grid/stencil/GeneralLocalStencil.h>
 
 //////////////////////////////////////////////////////////////////////////////////////////
@@ -121,22 +122,17 @@ class CartesianStencilAccelerator {
   StencilVector same_node;
   Coordinate    _simd_layout;
   Parameters    parameters;
-  ViewMode mode;
   StencilEntry*  _entries_p;
-  StencilEntry*  _entries_host_p;
   cobj* u_recv_buf_p;
   cobj* u_send_buf_p;
 
   accelerator_inline cobj *CommBuf(void) const { return u_recv_buf_p; }
 
-  // Not a device function
-  inline int GetNodeLocal(int osite,int point) const {
-    StencilEntry SE=this->_entries_host_p[point+this->_npoints*osite];
-    return SE._is_local;
+  accelerator_inline int GetNodeLocal(int osite,int point) const {
+    return this->_entries_p[point+this->_npoints*osite]._is_local;
   }
   accelerator_inline StencilEntry * GetEntry(int &ptype,int point,int osite) const {
-    ptype = this->_permute_type[point];
-    return & this->_entries_p[point+this->_npoints*osite];
+    ptype = this->_permute_type[point]; return & this->_entries_p[point+this->_npoints*osite];
   }
 
   accelerator_inline uint64_t GetInfo(int &ptype,int &local,int &perm,int point,int ent,uint64_t base) const {
@@ -169,22 +165,28 @@ class CartesianStencilView : public CartesianStencilAccelerator<vobj,cobj,Parame
 {
 public:
   int *closed;
-  //  StencilEntry *cpu_ptr;
+  StencilEntry *cpu_ptr;
+  ViewMode      mode;
  public:
   // default copy constructor
   CartesianStencilView (const CartesianStencilView &refer_to_me) = default;
 
   CartesianStencilView (const CartesianStencilAccelerator<vobj,cobj,Parameters> &refer_to_me,ViewMode _mode)
-    : CartesianStencilAccelerator<vobj,cobj,Parameters>(refer_to_me)
+    : CartesianStencilAccelerator<vobj,cobj,Parameters>(refer_to_me),
+    cpu_ptr(this->_entries_p),
+    mode(_mode)
   {
-    this->ViewOpen(_mode);
-  }
-  void ViewOpen(ViewMode _mode)
-  {
-    this->mode = _mode;
+    this->_entries_p =(StencilEntry *)
+      MemoryManager::ViewOpen(this->_entries_p,
+			      this->_npoints*this->_osites*sizeof(StencilEntry),
+			      mode,
+			      AdviseDefault);
   }
 
-  void ViewClose(void)  {  }
+  void ViewClose(void)
+  {
+    MemoryManager::ViewClose(this->cpu_ptr,this->mode);
+  }
 
 };
 
@@ -254,6 +256,7 @@ protected:
   GridBase *                        _grid;
 public:
   GridBase *Grid(void) const { return _grid; }
+  LebesgueOrder *lo;
 
   ////////////////////////////////////////////////////////////////////////
   // Needed to conveniently communicate gparity parameters into GPU memory
@@ -270,11 +273,11 @@ public:
   int face_table_computed;
   int partialDirichlet;
   int fullDirichlet;
-  std::vector<deviceVector<std::pair<int,int> > > face_table ;
-  deviceVector<int> surface_list;
+  std::vector<commVector<std::pair<int,int> > > face_table ;
+  Vector<int> surface_list;
 
-  std::vector<StencilEntry>   _entries; // Resident in host memory
-  deviceVector<StencilEntry>  _entries_device; // Resident in device memory
+  stencilVector<StencilEntry>  _entries; // Resident in managed memory
+  commVector<StencilEntry>     _entries_device; // Resident in device memory
   std::vector<Packet> Packets;
   std::vector<Merge> Mergers;
   std::vector<Merge> MergersSHM;
@@ -363,20 +366,11 @@ public:
   ////////////////////////////////////////////////////////////////////////
   void CommunicateBegin(std::vector<std::vector<CommsRequest_t> > &reqs)
   {
-    FlightRecorder::StepLog("Communicate begin");
     // All GPU kernel tasks must complete
     //    accelerator_barrier();     // All kernels should ALREADY be complete
     //    _grid->StencilBarrier();   // Everyone is here, so noone running slow and still using receive buffer
                                // But the HaloGather had a barrier too.
-    for(int i=0;i<Packets.size();i++){
-      _grid->StencilSendToRecvFromPrepare(MpiReqs,
-					  Packets[i].send_buf,
-					  Packets[i].to_rank,Packets[i].do_send,
-					  Packets[i].recv_buf,
-					  Packets[i].from_rank,Packets[i].do_recv,
-					  Packets[i].xbytes,Packets[i].rbytes,i);
-    }
-    acceleratorCopySynchronise();
+#ifdef ACCELERATOR_AWARE_MPI
     for(int i=0;i<Packets.size();i++){
       _grid->StencilSendToRecvFromBegin(MpiReqs,
 					Packets[i].send_buf,
@@ -385,6 +379,23 @@ public:
 					Packets[i].from_rank,Packets[i].do_recv,
 					Packets[i].xbytes,Packets[i].rbytes,i);
     }
+#else
+#warning "Using COPY VIA HOST BUFFERS IN STENCIL"
+    for(int i=0;i<Packets.size();i++){
+      // Introduce a host buffer with a cheap slab allocator and zero cost wipe all
+      Packets[i].host_send_buf = _grid->HostBufferMalloc(Packets[i].xbytes);
+      Packets[i].host_recv_buf = _grid->HostBufferMalloc(Packets[i].rbytes);
+      if ( Packets[i].do_send ) {
+	acceleratorCopyFromDevice(Packets[i].send_buf, Packets[i].host_send_buf,Packets[i].xbytes);
+      }
+      _grid->StencilSendToRecvFromBegin(MpiReqs,
+					Packets[i].host_send_buf,
+					Packets[i].to_rank,Packets[i].do_send,
+					Packets[i].host_recv_buf,
+					Packets[i].from_rank,Packets[i].do_recv,
+					Packets[i].xbytes,Packets[i].rbytes,i);
+    }
+#endif
     // Get comms started then run checksums
     // Having this PRIOR to the dslash seems to make Sunspot work... (!)
     for(int i=0;i<Packets.size();i++){
@@ -395,18 +406,27 @@ public:
 
   void CommunicateComplete(std::vector<std::vector<CommsRequest_t> > &reqs)
   {
-    FlightRecorder::StepLog("Start communicate complete");
     _grid->StencilSendToRecvFromComplete(MpiReqs,0); // MPI is done
     if   ( this->partialDirichlet ) DslashLogPartial();
     else if ( this->fullDirichlet ) DslashLogDirichlet();
     else DslashLogFull();
-    //    acceleratorCopySynchronise();// is in the StencilSendToRecvFromComplete
+    // acceleratorCopySynchronise() is in the StencilSendToRecvFromComplete
     //    accelerator_barrier(); 
+    _grid->StencilBarrier(); 
+#ifndef ACCELERATOR_AWARE_MPI
+#warning "Using COPY VIA HOST BUFFERS IN STENCIL"
+    for(int i=0;i<Packets.size();i++){
+      if ( Packets[i].do_recv ) {
+	acceleratorCopyToDevice(Packets[i].host_recv_buf, Packets[i].recv_buf,Packets[i].rbytes);
+      }
+    }
+    _grid->HostBufferFreeAll();
+#endif
+    // run any checksums
     for(int i=0;i<Packets.size();i++){
       if ( Packets[i].do_recv )
 	FlightRecorder::recvLog(Packets[i].recv_buf,Packets[i].rbytes,Packets[i].from_rank);
     }
-    FlightRecorder::StepLog("Finish communicate complete");
   }
   ////////////////////////////////////////////////////////////////////////
   // Blocking send and receive. Either sequential or parallel.
@@ -496,7 +516,6 @@ public:
       HaloGatherDir(source,compress,point,face_idx);
     }
     accelerator_barrier(); // All my local gathers are complete
-    //    _grid->StencilBarrier();// Synch shared memory on a single nodes
     face_table_computed=1;
     assert(u_comm_offset==_unified_buffer_size);
   }
@@ -632,10 +651,10 @@ public:
   ////////////////////////////////////////
   void PrecomputeByteOffsets(void){
     for(int i=0;i<_entries.size();i++){
-      if( this->_entries[i]._is_local ) {
-	this->_entries[i]._byte_offset = this->_entries[i]._offset*sizeof(vobj);
+      if( _entries[i]._is_local ) {
+	_entries[i]._byte_offset = _entries[i]._offset*sizeof(vobj);
       } else {
-	this->_entries[i]._byte_offset = this->_entries[i]._offset*sizeof(cobj);
+	_entries[i]._byte_offset = _entries[i]._offset*sizeof(cobj);
       }
     }
   };
@@ -649,7 +668,7 @@ public:
     for(int point=0;point<this->_npoints;point++){
       this->same_node[point] = this->SameNode(point);
     }
-    int32_t surface_list_size=0;
+
     for(int site = 0 ;site< vol4;site++){
       int local = 1;
       for(int point=0;point<this->_npoints;point++){
@@ -659,30 +678,11 @@ public:
       }
       if(local == 0) {
 	for(int s=0;s<Ls;s++){
-	  surface_list_size++;
+	  surface_list.push_back(site*Ls+s);
 	}
       }
     }
-    std::cout << "BuildSurfaceList size is "<<surface_list.size()<<std::endl;
-    surface_list.resize(surface_list_size);
-    std::vector<int> surface_list_host(surface_list_size);
-    int32_t ss=0;
-    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) {
-	for(int s=0;s<Ls;s++){
-	  int idx=site*Ls+s;
-	  surface_list_host[ss]= idx;
-	  ss++;
-	}
-      }
-    }
-    acceleratorCopyToDevice(&surface_list_host[0],&surface_list[0],surface_list_size*sizeof(int));
+    //std::cout << "BuildSurfaceList size is "<<surface_list.size()<<std::endl;
   }
   /// Introduce a block structure and switch off comms on boundaries
   void DirichletBlock(const Coordinate &dirichlet_block)
@@ -770,13 +770,7 @@ public:
     this->_osites  = _grid->oSites();
 
     _entries.resize(this->_npoints* this->_osites);
-    _entries_device.resize(this->_npoints* this->_osites);
-    this->_entries_host_p = &_entries[0];
-    this->_entries_p = &_entries_device[0];
-
-    std::cout << GridLogMessage << " Stencil object allocated for "<<std::dec<<this->_osites
-	      <<" sites table "<<std::hex<<this->_entries_p<< " GridPtr "<<_grid<<std::dec<<std::endl;
-    
+    this->_entries_p = &_entries[0];
     for(int ii=0;ii<npoints;ii++){
 
       int i = ii; // reverse direction to get SIMD comms done first
@@ -853,7 +847,6 @@ public:
       u_simd_send_buf[l] = (cobj *)_grid->ShmBufferMalloc(_unified_buffer_size*sizeof(cobj));
     }
     PrecomputeByteOffsets();
-    acceleratorCopyToDevice(&this->_entries[0],&this->_entries_device[0],this->_entries.size()*sizeof(StencilEntry));
   }
 
   void Local     (int point, int dimension,int shiftpm,int cbmask)
@@ -1009,10 +1002,10 @@ public:
       for(int n=0;n<_grid->_slice_nblock[dimension];n++){
 	for(int b=0;b<_grid->_slice_block[dimension];b++){
 	  int idx=point+(lo+o+b)*this->_npoints;
-	  this->_entries[idx]._offset  =ro+o+b;
-	  this->_entries[idx]._permute=permute;
-	  this->_entries[idx]._is_local=1;
-	  this->_entries[idx]._around_the_world=wrap;
+	  _entries[idx]._offset  =ro+o+b;
+	  _entries[idx]._permute=permute;
+	  _entries[idx]._is_local=1;
+	  _entries[idx]._around_the_world=wrap;
 	}
 	o +=_grid->_slice_stride[dimension];
       }
@@ -1030,10 +1023,10 @@ public:
 
 	  if ( ocb&cbmask ) {
 	    int idx = point+(lo+o+b)*this->_npoints;
-	    this->_entries[idx]._offset =ro+o+b;
-	    this->_entries[idx]._is_local=1;
-	    this->_entries[idx]._permute=permute;
-	    this->_entries[idx]._around_the_world=wrap;
+	    _entries[idx]._offset =ro+o+b;
+	    _entries[idx]._is_local=1;
+	    _entries[idx]._permute=permute;
+	    _entries[idx]._around_the_world=wrap;
 	  }
 
 	}
@@ -1057,10 +1050,10 @@ public:
       for(int n=0;n<_grid->_slice_nblock[dimension];n++){
 	for(int b=0;b<_grid->_slice_block[dimension];b++){
 	  int idx=point+(so+o+b)*this->_npoints;
-	  this->_entries[idx]._offset  =offset+(bo++);
-	  this->_entries[idx]._is_local=0;
-	  this->_entries[idx]._permute=0;
-	  this->_entries[idx]._around_the_world=wrap;
+	  _entries[idx]._offset  =offset+(bo++);
+	  _entries[idx]._is_local=0;
+	  _entries[idx]._permute=0;
+	  _entries[idx]._around_the_world=wrap;
 	}
 	o +=_grid->_slice_stride[dimension];
       }
@@ -1077,10 +1070,10 @@ public:
 	  int ocb=1<<_grid->CheckerBoardFromOindex(o+b);// Could easily be a table lookup
 	  if ( ocb & cbmask ) {
 	    int idx = point+(so+o+b)*this->_npoints;
-	    this->_entries[idx]._offset  =offset+(bo++);
-	    this->_entries[idx]._is_local=0;
-	    this->_entries[idx]._permute =0;
-	    this->_entries[idx]._around_the_world=wrap;
+	    _entries[idx]._offset  =offset+(bo++);
+	    _entries[idx]._is_local=0;
+	    _entries[idx]._permute =0;
+	    _entries[idx]._around_the_world=wrap;
 	  }
 	}
 	o +=_grid->_slice_stride[dimension];

Grid/threads/Accelerator.cc

@@ -202,15 +202,15 @@ void acceleratorInit(void)
 
 #ifdef GRID_SYCL
 
-sycl::queue *theGridAccelerator;
-sycl::queue *theCopyAccelerator;
+cl::sycl::queue *theGridAccelerator;
+cl::sycl::queue *theCopyAccelerator;
 void acceleratorInit(void)
 {
   int nDevices = 1;
-  //  sycl::gpu_selector selector;
-  //  sycl::device selectedDevice { selector };
-  theGridAccelerator = new sycl::queue (sycl::gpu_selector_v);
-  theCopyAccelerator = new sycl::queue (sycl::gpu_selector_v);
+  cl::sycl::gpu_selector selector;
+  cl::sycl::device selectedDevice { selector };
+  theGridAccelerator = new sycl::queue (selectedDevice);
+  theCopyAccelerator = new sycl::queue (selectedDevice);
   //  theCopyAccelerator = theGridAccelerator; // Should proceed concurrenlty anyway.
 
 #ifdef GRID_SYCL_LEVEL_ZERO_IPC
@@ -242,14 +242,14 @@ void acceleratorInit(void)
   gethostname(hostname, HOST_NAME_MAX+1);
   if ( rank==0 ) printf(" acceleratorInit world_rank %d is host %s \n",world_rank,hostname);
 
-  auto devices = sycl::device::get_devices();
+  auto devices = cl::sycl::device::get_devices();
   for(int d = 0;d<devices.size();d++){
 
 #define GPU_PROP_STR(prop) \
-    printf("AcceleratorSyclInit:   " #prop ": %s \n",devices[d].get_info<sycl::info::device::prop>().c_str());
+    printf("AcceleratorSyclInit:   " #prop ": %s \n",devices[d].get_info<cl::sycl::info::device::prop>().c_str());
 
 #define GPU_PROP_FMT(prop,FMT) \
-    printf("AcceleratorSyclInit:   " #prop ": " FMT" \n",devices[d].get_info<sycl::info::device::prop>());
+    printf("AcceleratorSyclInit:   " #prop ": " FMT" \n",devices[d].get_info<cl::sycl::info::device::prop>());
 
 #define GPU_PROP(prop)             GPU_PROP_FMT(prop,"%ld");
     if ( world_rank == 0) {

Grid/threads/Accelerator.h

@@ -132,17 +132,27 @@ inline void cuda_mem(void)
 
 #define accelerator_for2dNB( iter1, num1, iter2, num2, nsimd, ... )	\
   {									\
-    if ( num1*num2 ) {							\
-      int nt=acceleratorThreads();					\
-      typedef uint64_t Iterator;					\
-      auto lambda = [=] accelerator					\
-	(Iterator iter1,Iterator iter2,Iterator lane) mutable {		\
-		      __VA_ARGS__;					\
-		    };							\
-      dim3 cu_threads(nsimd,acceleratorThreads(),1);			\
-      dim3 cu_blocks ((num1+nt-1)/nt,num2,1);				\
-      LambdaApply<<<cu_blocks,cu_threads,0,computeStream>>>(num1,num2,nsimd,lambda); \
-    }									\
+    int nt=acceleratorThreads();					\
+    typedef uint64_t Iterator;						\
+    auto lambda = [=] accelerator					\
+      (Iterator iter1,Iterator iter2,Iterator lane) mutable {		\
+      __VA_ARGS__;							\
+    };									\
+    dim3 cu_threads(nsimd,acceleratorThreads(),1);			\
+    dim3 cu_blocks ((num1+nt-1)/nt,num2,1);				\
+    LambdaApply<<<cu_blocks,cu_threads,0,computeStream>>>(num1,num2,nsimd,lambda);	\
+  }
+#define prof_accelerator_for2dNB( iter1, num1, iter2, num2, nsimd, ... )	\
+  {									\
+    int nt=acceleratorThreads();					\
+    typedef uint64_t Iterator;						\
+    auto lambda = [=] accelerator					\
+      (Iterator iter1,Iterator iter2,Iterator lane) mutable {		\
+      __VA_ARGS__;							\
+    };									\
+    dim3 cu_threads(nsimd,acceleratorThreads(),1);			\
+    dim3 cu_blocks ((num1+nt-1)/nt,num2,1);				\
+    ProfileLambdaApply<<<cu_blocks,cu_threads,0,computeStream>>>(num1,num2,nsimd,lambda); \
   }
 
 #define accelerator_for6dNB(iter1, num1,				\
@@ -165,6 +175,19 @@ inline void cuda_mem(void)
   }
 
 
+#define accelerator_for2dNB( iter1, num1, iter2, num2, nsimd, ... )	\
+  {									\
+    int nt=acceleratorThreads();					\
+    typedef uint64_t Iterator;						\
+    auto lambda = [=] accelerator					\
+      (Iterator iter1,Iterator iter2,Iterator lane) mutable {		\
+      __VA_ARGS__;							\
+    };									\
+    dim3 cu_threads(nsimd,acceleratorThreads(),1);			\
+    dim3 cu_blocks ((num1+nt-1)/nt,num2,1);				\
+    LambdaApply<<<cu_blocks,cu_threads,0,computeStream>>>(num1,num2,nsimd,lambda);	\
+  }
+
 template<typename lambda>  __global__
 void LambdaApply(uint64_t num1, uint64_t num2, uint64_t num3, lambda Lambda)
 {
@@ -176,6 +199,17 @@ void LambdaApply(uint64_t num1, uint64_t num2, uint64_t num3, lambda Lambda)
     Lambda(x,y,z);
   }
 }
+template<typename lambda>  __global__
+void ProfileLambdaApply(uint64_t num1, uint64_t num2, uint64_t num3, lambda Lambda)
+{
+  // Weird permute is to make lane coalesce for large blocks
+  uint64_t x = threadIdx.y + blockDim.y*blockIdx.x;
+  uint64_t y = threadIdx.z + blockDim.z*blockIdx.y;
+  uint64_t z = threadIdx.x;
+  if ( (x < num1) && (y<num2) && (z<num3) ) {
+    Lambda(x,y,z);
+  }
+}
 
 template<typename lambda>  __global__
 void Lambda6Apply(uint64_t num1, uint64_t num2, uint64_t num3,
@@ -209,17 +243,6 @@ void Lambda6Apply(uint64_t num1, uint64_t num2, uint64_t num3,
     }									\
   }
 
-inline void *acceleratorAllocHost(size_t bytes)
-{
-  void *ptr=NULL;
-  auto err = cudaMallocHost((void **)&ptr,bytes);
-  if( err != cudaSuccess ) {
-    ptr = (void *) NULL;
-    printf(" cudaMallocHost failed for %d %s \n",bytes,cudaGetErrorString(err));
-    assert(0);
-  }
-  return ptr;
-}
 inline void *acceleratorAllocShared(size_t bytes)
 {
   void *ptr=NULL;
@@ -241,10 +264,8 @@ inline void *acceleratorAllocDevice(size_t bytes)
   }
   return ptr;
 };
-
 inline void acceleratorFreeShared(void *ptr){ cudaFree(ptr);};
 inline void acceleratorFreeDevice(void *ptr){ cudaFree(ptr);};
-inline void acceleratorFreeHost(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 acceleratorCopyToDeviceAsync(void *from, void *to, size_t bytes, cudaStream_t stream = copyStream) { cudaMemcpyAsync(to,from,bytes, cudaMemcpyHostToDevice, stream);}
@@ -281,7 +302,7 @@ NAMESPACE_END(Grid);
 
 // Force deterministic reductions
 #define SYCL_REDUCTION_DETERMINISTIC
-#include <sycl/sycl.hpp>
+#include <sycl/CL/sycl.hpp>
 #include <sycl/usm.hpp>
 #include <level_zero/ze_api.h>
 #include <sycl/ext/oneapi/backend/level_zero.hpp>
@@ -293,8 +314,8 @@ inline void acceleratorMem(void)
   std::cout <<" SYCL acceleratorMem not implemented"<<std::endl;
 }
 
-extern sycl::queue *theGridAccelerator;
-extern sycl::queue *theCopyAccelerator;
+extern cl::sycl::queue *theGridAccelerator;
+extern cl::sycl::queue *theCopyAccelerator;
 
 #ifdef __SYCL_DEVICE_ONLY__
 #define GRID_SIMT
@@ -305,24 +326,24 @@ extern sycl::queue *theCopyAccelerator;
 
 accelerator_inline int acceleratorSIMTlane(int Nsimd) {
 #ifdef GRID_SIMT
- return __spirv::initLocalInvocationId<3, sycl::id<3>>()[2]; 
+ return __spirv::initLocalInvocationId<3, cl::sycl::id<3>>()[2]; 
 #else
  return 0;
 #endif
 } // SYCL specific
 
 #define accelerator_for2dNB( iter1, num1, iter2, num2, nsimd, ... )	\
-  theGridAccelerator->submit([&](sycl::handler &cgh) {		\
+  theGridAccelerator->submit([&](cl::sycl::handler &cgh) {		\
     unsigned long nt=acceleratorThreads();				\
     if(nt < 8)nt=8;							\
     unsigned long unum1 = num1;						\
     unsigned long unum2 = num2;						\
     unsigned long unum1_divisible_by_nt = ((unum1 + nt - 1) / nt) * nt;	\
-    sycl::range<3> local {nt,1,nsimd};				\
-    sycl::range<3> global{unum1_divisible_by_nt,unum2,nsimd};	\
+    cl::sycl::range<3> local {nt,1,nsimd};				\
+    cl::sycl::range<3> global{unum1_divisible_by_nt,unum2,nsimd};	\
     cgh.parallel_for(							\
-		     sycl::nd_range<3>(global,local),			\
-		     [=] (sycl::nd_item<3> item) /*mutable*/		\
+		     cl::sycl::nd_range<3>(global,local),		\
+		     [=] (cl::sycl::nd_item<3> item) /*mutable*/	\
 		     [[intel::reqd_sub_group_size(16)]]			\
 		     {							\
 		       auto iter1    = item.get_global_id(0);		\
@@ -335,17 +356,12 @@ accelerator_inline int acceleratorSIMTlane(int Nsimd) {
 #define accelerator_barrier(dummy) { theGridAccelerator->wait(); }
 
 inline void *acceleratorAllocShared(size_t bytes){ return malloc_shared(bytes,*theGridAccelerator);};
-inline void *acceleratorAllocHost(size_t bytes)  { return malloc_host(bytes,*theGridAccelerator);};
 inline void *acceleratorAllocDevice(size_t bytes){ return malloc_device(bytes,*theGridAccelerator);};
-inline void acceleratorFreeHost(void *ptr){free(ptr,*theGridAccelerator);};
 inline void acceleratorFreeShared(void *ptr){free(ptr,*theGridAccelerator);};
 inline void acceleratorFreeDevice(void *ptr){free(ptr,*theGridAccelerator);};
 
 inline void acceleratorCopySynchronise(void) {  theCopyAccelerator->wait(); }
-
 inline void acceleratorCopyDeviceToDeviceAsynch(void *from,void *to,size_t bytes)  {  theCopyAccelerator->memcpy(to,from,bytes);}
-inline void acceleratorCopyToDeviceAsynch(void *from,void *to,size_t bytes)  { theCopyAccelerator->memcpy(to,from,bytes); }
-inline void acceleratorCopyFromDeviceAsynch(void *from,void *to,size_t bytes){ theCopyAccelerator->memcpy(to,from,bytes); }
 inline void acceleratorCopyToDevice(void *from,void *to,size_t bytes)  { theCopyAccelerator->memcpy(to,from,bytes); theCopyAccelerator->wait();}
 inline void acceleratorCopyFromDevice(void *from,void *to,size_t bytes){ theCopyAccelerator->memcpy(to,from,bytes); theCopyAccelerator->wait();}
 inline void acceleratorMemSet(void *base,int value,size_t bytes) { theCopyAccelerator->memset(base,value,bytes); theCopyAccelerator->wait();}
@@ -353,8 +369,8 @@ inline void acceleratorMemSet(void *base,int value,size_t bytes) { theCopyAccele
 inline int  acceleratorIsCommunicable(void *ptr)
 {
 #if 0
-  auto uvm = sycl::usm::get_pointer_type(ptr, theGridAccelerator->get_context());
-  if ( uvm = sycl::usm::alloc::shared ) return 1;
+  auto uvm = cl::sycl::usm::get_pointer_type(ptr, theGridAccelerator->get_context());
+  if ( uvm = cl::sycl::usm::alloc::shared ) return 1;
   else return 0;
 #endif
   return 1;
@@ -456,16 +472,6 @@ void LambdaApply(uint64_t numx, uint64_t numy, uint64_t numz, lambda Lambda)
     }								\
   }
 
-inline void *acceleratorAllocHost(size_t bytes)
-{
-  void *ptr=NULL;
-  auto err = hipMallocHost((void **)&ptr,bytes);
-  if( err != hipSuccess ) {
-    ptr = (void *) NULL;
-    fprintf(stderr," hipMallocManaged failed for %ld %s \n",bytes,hipGetErrorString(err)); fflush(stderr);
-  }
-  return ptr;
-};
 inline void *acceleratorAllocShared(size_t bytes)
 {
   void *ptr=NULL;
@@ -489,12 +495,12 @@ inline void *acceleratorAllocDevice(size_t bytes)
   return ptr;
 };
 
-inline void acceleratorFreeHost(void *ptr){ auto discard=hipFree(ptr);};
 inline void acceleratorFreeShared(void *ptr){ auto discard=hipFree(ptr);};
 inline void acceleratorFreeDevice(void *ptr){ auto discard=hipFree(ptr);};
 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);}
-
+//inline void acceleratorCopyDeviceToDeviceAsynch(void *from,void *to,size_t bytes)  { hipMemcpy(to,from,bytes, hipMemcpyDeviceToDevice);}
+//inline void acceleratorCopySynchronise(void) {  }
 inline void acceleratorMemSet(void *base,int value,size_t bytes) { auto discard=hipMemset(base,value,bytes);}
 
 inline void acceleratorCopyDeviceToDeviceAsynch(void *from,void *to,size_t bytes) // Asynch
@@ -511,19 +517,15 @@ inline void acceleratorCopySynchronise(void) { auto discard=hipStreamSynchronize
 
 #endif
 
-inline void acceleratorPin(void *ptr,unsigned long bytes)
-{
-#ifdef GRID_SYCL
-  sycl::ext::oneapi::experimental::prepare_for_device_copy(ptr,bytes,theCopyAccelerator->get_context());
-#endif
-}
-
 //////////////////////////////////////////////
 // Common on all GPU targets
 //////////////////////////////////////////////
 #if defined(GRID_SYCL) || defined(GRID_CUDA) || defined(GRID_HIP)
 // FIXME -- the non-blocking nature got broken March 30 2023 by PAB
 #define accelerator_forNB( iter1, num1, nsimd, ... ) accelerator_for2dNB( iter1, num1, iter2, 1, nsimd, {__VA_ARGS__} );  
+#define prof_accelerator_for( iter1, num1, nsimd, ... ) \
+  prof_accelerator_for2dNB( iter1, num1, iter2, 1, nsimd, {__VA_ARGS__} );\
+  accelerator_barrier(dummy);
 
 #define accelerator_for( iter, num, nsimd, ... )		\
   accelerator_forNB(iter, num, nsimd, { __VA_ARGS__ } );	\
@@ -572,10 +574,8 @@ inline void acceleratorCopySynchronise(void) {};
 inline int  acceleratorIsCommunicable(void *ptr){ return 1; }
 inline void acceleratorMemSet(void *base,int value,size_t bytes) { memset(base,value,bytes);}
 #ifdef HAVE_MM_MALLOC_H
-inline void *acceleratorAllocHost(size_t bytes){return _mm_malloc(bytes,GRID_ALLOC_ALIGN);};
 inline void *acceleratorAllocShared(size_t bytes){return _mm_malloc(bytes,GRID_ALLOC_ALIGN);};
 inline void *acceleratorAllocDevice(size_t bytes){return _mm_malloc(bytes,GRID_ALLOC_ALIGN);};
-inline void acceleratorFreeHost(void *ptr){_mm_free(ptr);};
 inline void acceleratorFreeShared(void *ptr){_mm_free(ptr);};
 inline void acceleratorFreeDevice(void *ptr){_mm_free(ptr);};
 #else

Grid/util/FlightRecorder.cc

@@ -39,8 +39,6 @@ int FlightRecorder::ContinueOnFail;
 int FlightRecorder::LoggingMode;
 int FlightRecorder::ChecksumComms;
 int FlightRecorder::ChecksumCommsSend;
-const char *   FlightRecorder::StepName;
-int32_t  FlightRecorder::StepLoggingCounter;
 int32_t  FlightRecorder::XmitLoggingCounter;
 int32_t  FlightRecorder::RecvLoggingCounter;
 int32_t  FlightRecorder::CsumLoggingCounter;
@@ -60,8 +58,6 @@ void FlightRecorder::ResetCounters(void)
   CsumLoggingCounter=0;
   NormLoggingCounter=0;
   ReductionLoggingCounter=0;
-  StepName = "No steps started";
-  StepLoggingCounter=0;
 }
 void FlightRecorder::Truncate(void)
 {
@@ -92,12 +88,6 @@ void FlightRecorder::SetLoggingMode(FlightRecorder::LoggingMode_t mode)
     assert(0);
   }
 }
-bool FlightRecorder::StepLog(const char *name)
-{
-  StepName = name;
-  StepLoggingCounter ++;
-  return true;
-}
 
 void FlightRecorder::SetLoggingModePrint(void)
 {
@@ -121,19 +111,17 @@ uint64_t FlightRecorder::ErrorCount(void)
 {
   return ErrorCounter;
 }
-bool FlightRecorder::NormLog(double value)
+void FlightRecorder::NormLog(double value)
 {
   uint64_t hex = * ( (uint64_t *)&value );
   if(LoggingMode == LoggingModePrint) {
     std::cerr<<"FlightRecorder::NormLog : "<< NormLoggingCounter <<" "<<std::hex<< hex<<std::dec <<std::endl;
     NormLoggingCounter++;
-    return true;
   }
   if(LoggingMode == LoggingModeRecord) {
     std::cerr<<"FlightRecorder::NormLog RECORDING : "<< NormLoggingCounter <<" "<<std::hex<< hex<<std::dec <<std::endl;
     NormLogVector.push_back(value);
     NormLoggingCounter++;
-    return true;
   }
   if(LoggingMode == LoggingModeVerify) {
 
@@ -142,9 +130,6 @@ bool FlightRecorder::NormLog(double value)
 
       if ( (value != NormLogVector[NormLoggingCounter]) || std::isnan(value) ) {
 
-	fprintf(stderr,"FlightRecorder Oops step %d stage %s \n",
-		FlightRecorder::StepLoggingCounter,
-		FlightRecorder::StepName);
 	std::cerr<<"FlightRecorder::NormLog Oops, I did it again "<< NormLoggingCounter
 		 <<std::hex<<" "<<hex<<" "<<hexref<<std::dec<<" "
 		 <<std::hexfloat<<value<<" "<< NormLogVector[NormLoggingCounter]<<std::endl;
@@ -157,9 +142,7 @@ bool FlightRecorder::NormLog(double value)
 		NormLoggingCounter,NormLogVector.size(),
 		value, NormLogVector[NormLoggingCounter]); fflush(stderr);
 
-	BACKTRACEFP(stderr);
-
-	if(!ContinueOnFail) return false;
+	if(!ContinueOnFail)assert(0); // Force takedown of job
 	  
 	ErrorCounter++;
       } else {
@@ -176,21 +159,18 @@ bool FlightRecorder::NormLog(double value)
     }
     NormLoggingCounter++;
   }
-  return true;
 }
-bool FlightRecorder::CsumLog(uint64_t hex)
+void FlightRecorder::CsumLog(uint64_t hex)
 {
   if(LoggingMode == LoggingModePrint) {
     std::cerr<<"FlightRecorder::CsumLog : "<< CsumLoggingCounter <<" "<<std::hex<< hex<<std::dec <<std::endl;
     CsumLoggingCounter++;
-    return true;
   }
 
   if(LoggingMode == LoggingModeRecord) {
     std::cerr<<"FlightRecorder::CsumLog RECORDING : "<< NormLoggingCounter <<" "<<std::hex<< hex<<std::dec <<std::endl;
     CsumLogVector.push_back(hex);
     CsumLoggingCounter++;
-    return true;
   }
 
   if(LoggingMode == LoggingModeVerify) {
@@ -201,9 +181,6 @@ bool FlightRecorder::CsumLog(uint64_t hex)
 
       if ( hex != hexref ) {
 
-	fprintf(stderr,"FlightRecorder Oops step %d stage %s \n",
-		FlightRecorder::StepLoggingCounter,
-		FlightRecorder::StepName);
         std::cerr<<"FlightRecorder::CsumLog Oops, I did it again "<< CsumLoggingCounter
 		 <<std::hex<<" "<<hex<<" "<<hexref<<std::dec<<std::endl;
 
@@ -211,10 +188,9 @@ bool FlightRecorder::CsumLog(uint64_t hex)
 		GridHostname(),
 		GlobalSharedMemory::WorldShmRank,
 		CsumLoggingCounter,hex, hexref);
-	BACKTRACEFP(stderr);
 	fflush(stderr);
 
-	if(!ContinueOnFail) return false;
+	if(!ContinueOnFail) assert(0); // Force takedown of job
 	  
 	ErrorCounter++;
 
@@ -231,9 +207,7 @@ bool FlightRecorder::CsumLog(uint64_t hex)
     }
     CsumLoggingCounter++;
   }
-  return true;
 }
-
 void FlightRecorder::ReductionLog(double local,double global)
 {
   uint64_t hex_l = * ( (uint64_t *)&local );
@@ -250,15 +224,11 @@ void FlightRecorder::ReductionLog(double local,double global)
   if(LoggingMode == LoggingModeVerify) {
     if(ReductionLoggingCounter < ReductionLogVector.size()){
       if ( global != ReductionLogVector[ReductionLoggingCounter] ) {
-	fprintf(stderr,"FlightRecorder Oops step %d stage %s \n",
-		FlightRecorder::StepLoggingCounter,
-		FlightRecorder::StepName);
 	fprintf(stderr,"%s:%d Oops, MPI_Allreduce did it again! Reproduce failure for norm %d/%zu glb %.16e lcl %.16e expect glb %.16e\n",
 		GridHostname(),
 		GlobalSharedMemory::WorldShmRank,
 		ReductionLoggingCounter,ReductionLogVector.size(),
 		global, local, ReductionLogVector[ReductionLoggingCounter]); fflush(stderr);
-	BACKTRACEFP(stderr);
 	
 	if ( !ContinueOnFail ) assert(0);
 
@@ -280,11 +250,10 @@ void FlightRecorder::xmitLog(void *buf,uint64_t bytes)
   if(LoggingMode == LoggingModeNone) return;
 
   if ( ChecksumCommsSend ){
-
-    if(LoggingMode == LoggingModeNone) return;
+  uint64_t *ubuf = (uint64_t *)buf;
+  if(LoggingMode == LoggingModeNone) return;
   
 #ifdef GRID_SYCL
-  uint64_t *ubuf = (uint64_t *)buf;
   uint64_t _xor = svm_xor(ubuf,bytes/sizeof(uint64_t));
   if(LoggingMode == LoggingModePrint) {
     std::cerr<<"FlightRecorder::xmitLog : "<< XmitLoggingCounter <<" "<< std::hex << _xor <<std::dec <<std::endl;
@@ -298,15 +267,11 @@ void FlightRecorder::xmitLog(void *buf,uint64_t bytes)
   if(LoggingMode == LoggingModeVerify) {
     if(XmitLoggingCounter < XmitLogVector.size()){
       if ( _xor != XmitLogVector[XmitLoggingCounter] ) {
-	fprintf(stderr,"FlightRecorder Oops step %d stage %s \n",
-		FlightRecorder::StepLoggingCounter,
-		FlightRecorder::StepName);
 	fprintf(stderr,"%s:%d Oops, send buf difference! Reproduce failure for xmit %d/%zu  %lx expect glb %lx\n",
 		GridHostname(),
 		GlobalSharedMemory::WorldShmRank,
 		XmitLoggingCounter,XmitLogVector.size(),
 		_xor, XmitLogVector[XmitLoggingCounter]); fflush(stderr);
-	BACKTRACEFP(stderr);
 	
 	if ( !ContinueOnFail ) assert(0);
 
@@ -328,9 +293,9 @@ void FlightRecorder::xmitLog(void *buf,uint64_t bytes)
 void FlightRecorder::recvLog(void *buf,uint64_t bytes,int rank)
 {
   if ( ChecksumComms ){
+  uint64_t *ubuf = (uint64_t *)buf;
   if(LoggingMode == LoggingModeNone) return;
 #ifdef GRID_SYCL
-  uint64_t *ubuf = (uint64_t *)buf;
   uint64_t _xor = svm_xor(ubuf,bytes/sizeof(uint64_t));
   if(LoggingMode == LoggingModePrint) {
     std::cerr<<"FlightRecorder::recvLog : "<< RecvLoggingCounter <<" "<< std::hex << _xor <<std::dec <<std::endl;
@@ -344,15 +309,11 @@ void FlightRecorder::recvLog(void *buf,uint64_t bytes,int rank)
   if(LoggingMode == LoggingModeVerify) {
     if(RecvLoggingCounter < RecvLogVector.size()){
       if ( _xor != RecvLogVector[RecvLoggingCounter] ) {
-	fprintf(stderr,"FlightRecorder Oops step %d stage %s \n",
-		FlightRecorder::StepLoggingCounter,
-		FlightRecorder::StepName);
 	fprintf(stderr,"%s:%d Oops, recv buf difference! Reproduce failure for recv %d/%zu  %lx expect glb %lx from MPI rank %d\n",
 		GridHostname(),
 		GlobalSharedMemory::WorldShmRank,
 		RecvLoggingCounter,RecvLogVector.size(),
 		_xor, RecvLogVector[RecvLoggingCounter],rank); fflush(stderr);
-	BACKTRACEFP(stderr);
 	
 	if ( !ContinueOnFail ) assert(0);
 

Grid/util/FlightRecorder.h

@@ -12,8 +12,6 @@ class FlightRecorder {
   
   static int                   LoggingMode;
   static uint64_t              ErrorCounter;
-  static const char *                StepName;
-  static int32_t               StepLoggingCounter;
   static int32_t               XmitLoggingCounter;
   static int32_t               RecvLoggingCounter;
   static int32_t               CsumLoggingCounter;
@@ -32,9 +30,8 @@ class FlightRecorder {
   static void SetLoggingModeRecord(void);
   static void SetLoggingModeVerify(void);
   static void SetLoggingMode(LoggingMode_t mode);
-  static bool StepLog(const char *name);
-  static bool NormLog(double value);
-  static bool CsumLog(uint64_t csum);
+  static void NormLog(double value);
+  static void CsumLog(uint64_t csum);
   static void ReductionLog(double lcl, double glbl);
   static void Truncate(void);
   static void ResetCounters(void);

Grid/util/Init.cc

@@ -464,12 +464,16 @@ void Grid_init(int *argc,char ***argv)
     std::cout<<GridLogMessage<<std::endl;
     std::cout<<GridLogMessage<<"Performance:"<<std::endl;
     std::cout<<GridLogMessage<<std::endl;
+    std::cout<<GridLogMessage<<"  --comms-concurrent : Asynchronous MPI calls; several dirs at a time "<<std::endl;    
+    std::cout<<GridLogMessage<<"  --comms-sequential : Synchronous MPI calls; one dirs at a time "<<std::endl;    
     std::cout<<GridLogMessage<<"  --comms-overlap    : Overlap comms with compute "<<std::endl;    
     std::cout<<GridLogMessage<<std::endl;
     std::cout<<GridLogMessage<<"  --dslash-generic: Wilson kernel for generic Nc"<<std::endl;    
     std::cout<<GridLogMessage<<"  --dslash-unroll : Wilson kernel for Nc=3"<<std::endl;    
     std::cout<<GridLogMessage<<"  --dslash-asm    : Wilson kernel for AVX512"<<std::endl;    
     std::cout<<GridLogMessage<<std::endl;
+    std::cout<<GridLogMessage<<"  --lebesgue      : Cache oblivious Lebesgue curve/Morton order/Z-graph stencil looping"<<std::endl;    
+    std::cout<<GridLogMessage<<"  --cacheblocking n.m.o.p : Hypercuboidal cache blocking"<<std::endl;    
     std::cout<<GridLogMessage<<std::endl;
     exit(EXIT_SUCCESS);
   }
@@ -497,8 +501,28 @@ void Grid_init(int *argc,char ***argv)
     WilsonKernelsStatic::Comms = WilsonKernelsStatic::CommsThenCompute;
     StaggeredKernelsStatic::Comms = StaggeredKernelsStatic::CommsThenCompute;
   }
+  if( GridCmdOptionExists(*argv,*argv+*argc,"--comms-concurrent") ){
+    CartesianCommunicator::SetCommunicatorPolicy(CartesianCommunicator::CommunicatorPolicyConcurrent);
+  }
+  if( GridCmdOptionExists(*argv,*argv+*argc,"--comms-sequential") ){
+    CartesianCommunicator::SetCommunicatorPolicy(CartesianCommunicator::CommunicatorPolicySequential);
+  }
 
+  if( GridCmdOptionExists(*argv,*argv+*argc,"--lebesgue") ){
+    LebesgueOrder::UseLebesgueOrder=1;
+  }
   CartesianCommunicator::nCommThreads = 1;
+#ifdef GRID_COMMS_THREADS  
+  if( GridCmdOptionExists(*argv,*argv+*argc,"--comms-threads") ){
+    arg= GridCmdOptionPayload(*argv,*argv+*argc,"--comms-threads");
+    GridCmdOptionInt(arg,CartesianCommunicator::nCommThreads);
+    assert(CartesianCommunicator::nCommThreads > 0);
+  }
+#endif  
+  if( GridCmdOptionExists(*argv,*argv+*argc,"--cacheblocking") ){
+    arg= GridCmdOptionPayload(*argv,*argv+*argc,"--cacheblocking");
+    GridCmdOptionIntVector(arg,LebesgueOrder::Block);
+  }
   if( GridCmdOptionExists(*argv,*argv+*argc,"--notimestamp") ){
     GridLogTimestamp(0);
   } else {
@@ -549,34 +573,8 @@ void GridLogLayout() {
 
 void * Grid_backtrace_buffer[_NBACKTRACE];
 
-void Grid_usr_signal_handler(int sig,siginfo_t *si,void * ptr)
-{
-  fprintf(stderr,"Signal handler on host %s\n",hostname);
-  fprintf(stderr,"FlightRecorder step %d stage %s \n",
-	  FlightRecorder::StepLoggingCounter,
-	  FlightRecorder::StepName);
-  fprintf(stderr,"Caught signal %d\n",si->si_signo);
-  fprintf(stderr,"  mem address %llx\n",(unsigned long long)si->si_addr);
-  fprintf(stderr,"         code %d\n",si->si_code);
-  // x86 64bit
-#ifdef __linux__
-#ifdef __x86_64__
-  ucontext_t * uc= (ucontext_t *)ptr;
-  struct sigcontext *sc = (struct sigcontext *)&uc->uc_mcontext;
-  fprintf(stderr,"  instruction %llx\n",(unsigned long long)sc->rip);
-#endif
-#endif
-  fflush(stderr);
-  BACKTRACEFP(stderr);
-  fprintf(stderr,"Called backtrace\n");
-  fflush(stdout);
-  fflush(stderr);
-  return;
-}
-
 void Grid_sa_signal_handler(int sig,siginfo_t *si,void * ptr)
 {
-  fprintf(stderr,"Signal handler on host %s\n",hostname);
   fprintf(stderr,"Caught signal %d\n",si->si_signo);
   fprintf(stderr,"  mem address %llx\n",(unsigned long long)si->si_addr);
   fprintf(stderr,"         code %d\n",si->si_code);
@@ -587,7 +585,7 @@ void Grid_sa_signal_handler(int sig,siginfo_t *si,void * ptr)
   ucontext_t * uc= (ucontext_t *)ptr;
   struct sigcontext *sc = (struct sigcontext *)&uc->uc_mcontext;
   fprintf(stderr,"  instruction %llx\n",(unsigned long long)sc->rip);
-#define REG(A)  fprintf(stderr,"  %s %lx\n",#A,sc-> A);
+#define REG(A)  printf("  %s %lx\n",#A,sc-> A);
   REG(rdi);
   REG(rsi);
   REG(rbp);
@@ -620,8 +618,8 @@ void Grid_sa_signal_handler(int sig,siginfo_t *si,void * ptr)
 
 void Grid_exit_handler(void)
 {
-  //  BACKTRACEFP(stdout);
-  //  fflush(stdout);
+  BACKTRACEFP(stdout);
+  fflush(stdout);
 }
 void Grid_debug_handler_init(void)
 {
@@ -629,10 +627,10 @@ void Grid_debug_handler_init(void)
   sigemptyset (&sa.sa_mask);
   sa.sa_sigaction= Grid_sa_signal_handler;
   sa.sa_flags    = SA_SIGINFO;
-  //  sigaction(SIGSEGV,&sa,NULL);
+  sigaction(SIGSEGV,&sa,NULL);
   sigaction(SIGTRAP,&sa,NULL);
   sigaction(SIGBUS,&sa,NULL);
-  //  sigaction(SIGUSR2,&sa,NULL);
+  sigaction(SIGUSR2,&sa,NULL);
 
   feenableexcept( FE_INVALID|FE_OVERFLOW|FE_DIVBYZERO);
 
@@ -640,14 +638,7 @@ void Grid_debug_handler_init(void)
   sigaction(SIGKILL,&sa,NULL);
   sigaction(SIGILL,&sa,NULL);
 
-  // Non terminating SIGUSR1/2 handler
-  struct sigaction sa_ping;
-  sigemptyset (&sa_ping.sa_mask);
-  sa_ping.sa_sigaction= Grid_usr_signal_handler;
-  sa_ping.sa_flags    = SA_SIGINFO;
-  sigaction(SIGHUP,&sa_ping,NULL);
-
-  //  atexit(Grid_exit_handler);
+  atexit(Grid_exit_handler);
 }
 
 NAMESPACE_END(Grid);

Makefile.am

@@ -1,5 +1,5 @@
 # additional include paths necessary to compile the C++ library
-SUBDIRS = Grid  benchmarks tests examples HMC
+SUBDIRS = Grid HMC benchmarks tests examples
 
 include $(top_srcdir)/doxygen.inc
 

benchmarks/Benchmark_ITT.cc

@@ -644,6 +644,11 @@ int main (int argc, char ** argv)
   Grid_init(&argc,&argv);
 
   CartesianCommunicator::SetCommunicatorPolicy(CartesianCommunicator::CommunicatorPolicySequential);
+#ifdef KNL
+  LebesgueOrder::Block = std::vector<int>({8,2,2,2});
+#else
+  LebesgueOrder::Block = std::vector<int>({2,2,2,2});
+#endif
   Benchmark::Decomposition();
 
   int do_su4=1;

benchmarks/Benchmark_dwf_fp32.cc

@@ -52,7 +52,7 @@ int main (int argc, char ** argv)
 
   int threads = GridThread::GetThreads();
 
-  int Ls=8;
+  int Ls=16;
   for(int i=0;i<argc;i++) {
     if(std::string(argv[i]) == "-Ls"){
       std::stringstream ss(argv[i+1]); ss >> Ls;

benchmarks/Benchmark_memory_asynch.cc

@@ -70,7 +70,7 @@ int main (int argc, char ** argv)
     pRNG.SeedFixedIntegers(std::vector<int>({56,17,89,101}));
 
     std::vector<double> stop(threads);
-    std::vector<Vec> sum(threads);
+    Vector<Vec> sum(threads);
 
     std::vector<LatticeVec> x(threads,&Grid);
     for(int t=0;t<threads;t++){

benchmarks/Benchmark_mooee.cc

@@ -78,9 +78,9 @@ int main (int argc, char ** argv)
     double t0,t1;
     
     typedef typename DomainWallFermionD::Coeff_t Coeff_t;
-    std::vector<Coeff_t> diag = Dw.bs;
-    std::vector<Coeff_t> upper= Dw.cs;
-    std::vector<Coeff_t> lower= Dw.cs;
+    Vector<Coeff_t> diag = Dw.bs;
+    Vector<Coeff_t> upper= Dw.cs;
+    Vector<Coeff_t> lower= Dw.cs;
     upper[Ls-1]=-Dw.mass_minus*upper[Ls-1];
     lower[0]   =-Dw.mass_plus*lower[0];
     

benchmarks/Benchmark_usqcd.cc

@@ -118,7 +118,7 @@ public:
     fprintf(FP,"Packet bytes, direction, GB/s per node\n");
     for(int lat=16;lat<=maxlat;lat+=8){
       //      for(int Ls=8;Ls<=8;Ls*=2){
-      { int Ls=8;
+      { int Ls=12;
 
 	Coordinate latt_size  ({lat*mpi_layout[0],
 	      lat*mpi_layout[1],
@@ -175,8 +175,8 @@ public:
 	    timestat.statistics(t_time);
 	  
 	    dbytes=dbytes*ppn;
-	    double xbytes    = dbytes*0.5;
-	    double bidibytes = dbytes;
+	    double xbytes    = dbytes;
+	    double bidibytes = dbytes*2.0;
 	  
 	    std::cout<<GridLogMessage << lat<<"\t"<<Ls<<"\t "
 		     << bytes << " \t "
@@ -861,7 +861,7 @@ int main (int argc, char ** argv)
   }
 
   CartesianCommunicator::SetCommunicatorPolicy(CartesianCommunicator::CommunicatorPolicySequential);
-  //  LebesgueOrder::Block = std::vector<int>({2,2,2,2});
+  LebesgueOrder::Block = std::vector<int>({2,2,2,2});
 
   Benchmark::Decomposition();
 
@@ -872,7 +872,7 @@ int main (int argc, char ** argv)
   int do_dslash=1;
 
   int sel=4;
-  std::vector<int> L_list({8,12,16,24});
+  std::vector<int> L_list({8,12,16,24,32});
   int selm1=sel-1;
 
   std::vector<double> clover;

configure.ac

@@ -72,7 +72,6 @@ AC_CHECK_HEADERS(malloc/malloc.h)
 AC_CHECK_HEADERS(malloc.h)
 AC_CHECK_HEADERS(endian.h)
 AC_CHECK_HEADERS(execinfo.h)
-AC_CHECK_HEADERS(numaif.h)
 AC_CHECK_DECLS([ntohll],[], [], [[#include <arpa/inet.h>]])
 AC_CHECK_DECLS([be64toh],[], [], [[#include <arpa/inet.h>]])
 
@@ -129,20 +128,6 @@ case ${ac_LAPACK} in
         AC_DEFINE([USE_LAPACK],[1],[use LAPACK]);;
 esac
 
-############### internal reduction
-AC_ARG_ENABLE([reduction],
-    [AS_HELP_STRING([--enable-reduction=mpi|grid],[enable reduction])],
-    [ac_REDUCTION=${enable_reduction}], [ac_REDUCTION=grid])
-
-case ${ac_REDUCTION} in
-    mpi)
-        ;;
-    grid)
-        AC_DEFINE([USE_GRID_REDUCTION],[1],[use GRID REDUCTION]);;
-    *)
-        AC_DEFINE([USE_GRID_REDUCTION],[1],[use GRID REDUCTION]);;
-esac
-
 ############### tracing
 AC_ARG_ENABLE([tracing],
     [AS_HELP_STRING([--enable-tracing=none|nvtx|roctx|timer],[enable tracing])],
@@ -240,21 +225,19 @@ case ${ac_SFW_FP16} in
       AC_MSG_ERROR(["SFW FP16 option not supported ${ac_SFW_FP16}"]);;
 esac
 
-
-############### MPI BOUNCE TO HOST
+############### Default to accelerator cshift, but revert to host if UCX is buggy or other reasons
 AC_ARG_ENABLE([accelerator-aware-mpi],
     [AS_HELP_STRING([--enable-accelerator-aware-mpi=yes|no],[run mpi transfers from device])],
     [ac_ACCELERATOR_AWARE_MPI=${enable_accelerator_aware_mpi}], [ac_ACCELERATOR_AWARE_MPI=yes])
 
-# Force accelerator CSHIFT now
-AC_DEFINE([ACCELERATOR_CSHIFT],[1],[ Cshift runs on device])
-
 case ${ac_ACCELERATOR_AWARE_MPI} in
     yes)
+      AC_DEFINE([ACCELERATOR_CSHIFT],[1],[ Cshift runs on host])
       AC_DEFINE([ACCELERATOR_AWARE_MPI],[1],[ Stencil can use device pointers]);;
     *);;
 esac
 
+
 ############### SYCL/CUDA/HIP/none
 AC_ARG_ENABLE([accelerator],
     [AS_HELP_STRING([--enable-accelerator=cuda|sycl|hip|none],[enable none,cuda,sycl,hip acceleration])],
@@ -681,6 +664,16 @@ case ${ac_SHM_FAST_PATH} in
      *) ;;
 esac
 
+############### communication type selection
+AC_ARG_ENABLE([comms-threads],[AS_HELP_STRING([--enable-comms-threads | --disable-comms-threads],[Use multiple threads in MPI calls])],[ac_COMMS_THREADS=${enable_comms_threads}],[ac_COMMS_THREADS=yes])
+
+case ${ac_COMMS_THREADS} in
+     yes)
+        AC_DEFINE([GRID_COMMS_THREADING],[1],[GRID_COMMS_NONE] )
+      ;;
+     *) ;;
+esac
+
 ############### communication type selection
 AC_ARG_ENABLE([comms],[AS_HELP_STRING([--enable-comms=none|mpi|mpi-auto],[Select communications])],[ac_COMMS=${enable_comms}],[ac_COMMS=none])
 

examples/Example_taku.cc

@@ -0,0 +1,383 @@
+/*
+ * Warning: This code illustrative only: not well tested, and not meant for production use
+ * without regression / tests being applied
+ */
+
+#include <Grid/Grid.h>
+
+using namespace std;
+using namespace Grid;
+
+RealD LLscale =1.0;
+RealD LCscale =1.0;
+
+template<class Gimpl,class Field> class CovariantLaplacianCshift : public SparseMatrixBase<Field>
+{
+public:
+  INHERIT_GIMPL_TYPES(Gimpl);
+
+  GridBase *grid;
+  GaugeField U;
+  
+  CovariantLaplacianCshift(GaugeField &_U)    :
+    grid(_U.Grid()),
+    U(_U) {  };
+
+  virtual GridBase *Grid(void) { return grid; };
+
+  virtual void  M    (const Field &in, Field &out)
+  {
+    out=Zero();
+    for(int mu=0;mu<Nd-1;mu++) {
+      GaugeLinkField Umu = PeekIndex<LorentzIndex>(U, mu); // NB: Inefficent
+      out = out - Gimpl::CovShiftForward(Umu,mu,in);    
+      out = out - Gimpl::CovShiftBackward(Umu,mu,in);    
+      out = out + 2.0*in;
+    }
+  };
+  virtual void  Mdag (const Field &in, Field &out) { M(in,out);}; // Laplacian is hermitian
+  virtual  void Mdiag    (const Field &in, Field &out)                  {assert(0);}; // Unimplemented need only for multigrid
+  virtual  void Mdir     (const Field &in, Field &out,int dir, int disp){assert(0);}; // Unimplemented need only for multigrid
+  virtual  void MdirAll  (const Field &in, std::vector<Field> &out)     {assert(0);}; // Unimplemented need only for multigrid
+};
+
+void MakePhase(Coordinate mom,LatticeComplex &phase)
+{
+  GridBase *grid = phase.Grid();
+  auto latt_size = grid->GlobalDimensions();
+  ComplexD ci(0.0,1.0);
+  phase=Zero();
+
+  LatticeComplex coor(phase.Grid());
+  for(int mu=0;mu<Nd;mu++){
+    RealD TwoPiL =  M_PI * 2.0/ latt_size[mu];
+    LatticeCoordinate(coor,mu);
+    phase = phase + (TwoPiL * mom[mu]) * coor;
+  }
+  phase = exp(phase*ci);
+}
+void PointSource(Coordinate &coor,LatticePropagator &source)
+{
+  //  Coordinate coor({0,0,0,0});
+  source=Zero();
+  SpinColourMatrix kronecker; kronecker=1.0;
+  pokeSite(kronecker,source,coor);
+}
+void Z2WallSource(GridParallelRNG &RNG,int tslice,LatticePropagator &source)
+{
+  GridBase *grid = source.Grid();
+  LatticeComplex noise(grid);
+  LatticeComplex zz(grid); zz=Zero();
+  LatticeInteger t(grid);
+
+  RealD nrm=1.0/sqrt(2);
+  bernoulli(RNG, noise); // 0,1 50:50
+
+  noise = (2.*noise - Complex(1,1))*nrm;
+
+  LatticeCoordinate(t,Tdir);
+  noise = where(t==Integer(tslice), noise, zz);
+
+  source = 1.0;
+  source = source*noise;
+  std::cout << " Z2 wall " << norm2(source) << std::endl;
+}
+template<class Field>
+void GaussianSmear(LatticeGaugeField &U,Field &unsmeared,Field &smeared)
+{
+  typedef CovariantLaplacianCshift <PeriodicGimplR,Field> Laplacian_t;
+  Laplacian_t Laplacian(U);
+
+  Integer Iterations = 40;
+  Real width = 2.0;
+  Real coeff = (width*width) / Real(4*Iterations);
+
+  Field tmp(U.Grid());
+  smeared=unsmeared;
+  //  chi = (1-p^2/2N)^N kronecker
+  for(int n = 0; n < Iterations; ++n) {
+    Laplacian.M(smeared,tmp);
+    smeared = smeared - coeff*tmp;
+    std::cout << " smear iter " << n<<" " <<norm2(smeared)<<std::endl;
+  }
+}
+void GaussianSource(Coordinate &site,LatticeGaugeField &U,LatticePropagator &source)
+{
+  LatticePropagator tmp(source.Grid());
+  PointSource(site,source);
+  std::cout << " GaussianSource Kronecker "<< norm2(source)<<std::endl;
+  tmp = source;
+  GaussianSmear(U,tmp,source);
+  std::cout << " GaussianSource Smeared "<< norm2(source)<<std::endl;
+}
+void GaussianWallSource(GridParallelRNG &RNG,int tslice,LatticeGaugeField &U,LatticePropagator &source)
+{
+  Z2WallSource(RNG,tslice,source);
+  auto tmp = source;
+  GaussianSmear(U,tmp,source);
+}
+void SequentialSource(int tslice,Coordinate &mom,LatticePropagator &spectator,LatticePropagator &source)
+{
+  assert(mom.size()==Nd);
+  assert(mom[Tdir] == 0);
+
+  GridBase * grid = spectator.Grid();
+
+
+  LatticeInteger ts(grid);
+  LatticeCoordinate(ts,Tdir);
+  source = Zero();
+  source = where(ts==Integer(tslice),spectator,source); // Stick in a slice of the spectator, zero everywhere else
+
+  LatticeComplex phase(grid);
+  MakePhase(mom,phase);
+
+  source = source *phase;
+}
+template<class Action>
+void Solve(Action &D,LatticePropagator &source,LatticePropagator &propagator)
+{
+  GridBase *UGrid = D.GaugeGrid();
+  GridBase *FGrid = D.FermionGrid();
+
+  LatticeFermion src4  (UGrid); 
+  LatticeFermion src5  (FGrid); 
+  LatticeFermion result5(FGrid);
+  LatticeFermion result4(UGrid);
+  LatticePropagator prop5(FGrid);
+  
+  ConjugateGradient<LatticeFermion> CG(1.0e-8,100000);
+  SchurRedBlackDiagMooeeSolve<LatticeFermion> schur(CG);
+  ZeroGuesser<LatticeFermion> ZG; // Could be a DeflatedGuesser if have eigenvectors
+   for(int s=0;s<Nd;s++){
+    for(int c=0;c<Nc;c++){
+      PropToFerm<Action>(src4,source,s,c);
+
+      D.ImportPhysicalFermionSource(src4,src5);
+
+      result5=Zero();
+      schur(D,src5,result5,ZG);
+      std::cout<<GridLogMessage
+	       <<"spin "<<s<<" color "<<c
+	       <<" norm2(src5d) "   <<norm2(src5)
+               <<" norm2(result5d) "<<norm2(result5)<<std::endl;
+
+      D.ExportPhysicalFermionSolution(result5,result4);
+
+      FermToProp<Action>(prop5,result5,s,c);
+      FermToProp<Action>(propagator,result4,s,c);
+    }
+  }
+  LatticePropagator Axial_mu(UGrid); 
+  LatticePropagator Vector_mu(UGrid); 
+
+  LatticeComplex    PA (UGrid); 
+  LatticeComplex    VV (UGrid); 
+  LatticeComplex    PJ5q(UGrid);
+  LatticeComplex    PP (UGrid);
+
+  std::vector<TComplex> sumPA;
+  std::vector<TComplex> sumVV;
+  std::vector<TComplex> sumPP;
+  std::vector<TComplex> sumPJ5q;
+
+  Gamma g5(Gamma::Algebra::Gamma5);
+  D.ContractConservedCurrent(prop5,prop5,Axial_mu,source,Current::Axial,Tdir);
+  PA       = trace(g5*Axial_mu);      // Pseudoscalar-Axial conserved current
+  sliceSum(PA,sumPA,Tdir);
+
+  int Nt{static_cast<int>(sumPA.size())};
+
+  for(int t=0;t<Nt;t++) std::cout<<GridLogMessage <<"PAc["<<t<<"] "<<real(TensorRemove(sumPA[t]))*LCscale<<std::endl;
+
+  PP       = trace(adj(propagator)*propagator); // Pseudoscalar density
+  sliceSum(PP,sumPP,Tdir);
+  for(int t=0;t<Nt;t++) std::cout<<GridLogMessage <<"PP["<<t<<"] "<<real(TensorRemove(sumPP[t]))*LCscale<<std::endl;
+  
+  D.ContractJ5q(prop5,PJ5q);
+  sliceSum(PJ5q,sumPJ5q,Tdir);
+  for(int t=0;t<Nt;t++) std::cout<<GridLogMessage <<"PJ5q["<<t<<"] "<<real(TensorRemove(sumPJ5q[t]))<<std::endl;
+
+  Gamma::Algebra GammaV[3] = {
+    Gamma::Algebra::GammaX,
+    Gamma::Algebra::GammaY,
+    Gamma::Algebra::GammaZ
+  };
+  for( int mu=0;mu<3;mu++ ) {
+    Gamma gV(GammaV[mu]);
+    D.ContractConservedCurrent(prop5,prop5,Vector_mu,source,Current::Vector,mu);
+    //    auto ss=sliceSum(Vector_mu,Tdir);
+    //    for(int t=0;t<Nt;t++) std::cout<<GridLogMessage <<"ss["<<mu<<"]["<<t<<"] "<<ss[t]<<std::endl;
+    VV       = trace(gV*Vector_mu);     // (local) Vector-Vector conserved current
+    sliceSum(VV,sumVV,Tdir);
+    for(int t=0;t<Nt;t++){
+      RealD Ct = real(TensorRemove(sumVV[t]))*LCscale;
+      std::cout<<GridLogMessage <<"VVc["<<mu<<"]["<<t<<"] "<< Ct
+	       << " 2 pi^2 t^3 C(t) "<< 2 * M_PI *M_PI * t*t*t *Ct<<std::endl;
+    }
+  }
+
+}
+
+class MesonFile: Serializable {
+public:
+  GRID_SERIALIZABLE_CLASS_MEMBERS(MesonFile, std::vector<std::vector<Complex> >, data);
+};
+
+void MesonTrace(std::string file,LatticePropagator &q1,LatticePropagator &q2,LatticeComplex &phase)
+{
+  const int nchannel=3;
+  Gamma::Algebra Gammas[nchannel][2] = {
+    {Gamma::Algebra::GammaX,Gamma::Algebra::GammaX},
+    {Gamma::Algebra::GammaY,Gamma::Algebra::GammaY},
+    {Gamma::Algebra::GammaZ,Gamma::Algebra::GammaZ}
+  };
+
+  Gamma G5(Gamma::Algebra::Gamma5);
+
+  LatticeComplex meson_CF(q1.Grid());
+  MesonFile MF;
+
+  for(int ch=0;ch<nchannel;ch++){
+
+    Gamma Gsrc(Gammas[ch][0]);
+    Gamma Gsnk(Gammas[ch][1]);
+
+    meson_CF = trace(G5*adj(q1)*G5*Gsnk*q2*adj(Gsrc));
+
+    std::vector<TComplex> meson_T;
+    sliceSum(meson_CF,meson_T, Tdir);
+
+    int nt=meson_T.size();
+
+    std::vector<Complex> corr(nt);
+    for(int t=0;t<nt;t++){
+      corr[t] = TensorRemove(meson_T[t])*LLscale; // Yes this is ugly, not figured a work around
+      std::cout << " channel "<<ch<<" t "<<t<<" " <<real(corr[t])<< " 2 pi^2 t^3 C(t) "<< 2 * M_PI *M_PI * t*t*t *real(corr[t])<<std::endl;
+    }
+    MF.data.push_back(corr);
+  }
+
+  {
+    XmlWriter WR(file);
+    write(WR,"MesonFile",MF);
+  }
+}
+
+int main (int argc, char ** argv)
+{
+  const int Ls=32;
+
+  Grid_init(&argc,&argv);
+
+  // Double precision grids
+  GridCartesian         * UGrid   = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), 
+								   GridDefaultSimd(Nd,vComplex::Nsimd()),
+								   GridDefaultMpi());
+  GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
+  GridCartesian         * FGrid   = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
+  GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
+
+  //////////////////////////////////////////////////////////////////////
+  // You can manage seeds however you like.
+  // Recommend SeedUniqueString.
+  //////////////////////////////////////////////////////////////////////
+  std::vector<int> seeds4({1,2,3,4}); 
+  GridParallelRNG          RNG4(UGrid);  RNG4.SeedFixedIntegers(seeds4);
+
+  LatticeGaugeField Umu(UGrid);
+  std::string config;
+  RealD M5=1.8;
+  if( argc > 1 && argv[1][0] != '-' )
+  {
+    std::cout<<GridLogMessage <<"Loading configuration from "<<argv[1]<<std::endl;
+    FieldMetaData header;
+    NerscIO::readConfiguration(Umu, header, argv[1]);
+    config=argv[1];
+    M5=1.8;
+  }
+  else
+  {
+    SU<Nc>::ColdConfiguration(Umu);
+    config="ColdConfig";
+    //    RealD P=1.0; // Don't scale
+    RealD P=0.5871119; // 48I
+    //    RealD P=0.6153342; // 64I
+    //    RealD P=0.6388238 // 32Ifine
+    RealD u0 = sqrt(sqrt(P));
+    RealD M5mf = M5 - 4.0*(1.0-u0);
+    RealD w0   = 1.0 - M5mf;
+#if 0
+    // M5=1.8 with U=u0
+    Umu = Umu * u0;
+    LLscale = 1.0;
+    LCscale = 1.0;
+    std::cout<<GridLogMessage <<"Gauge links are u=u0= "<<u0<<std::endl;
+    std::cout<<GridLogMessage <<"M5 =  "<<M5<<std::endl;
+#else
+    M5 = M5mf;
+    std::cout<<GridLogMessage <<"Gauge links are u=1  "<<std::endl;
+    std::cout<<GridLogMessage <<"u0="<<u0<<std::endl;
+    std::cout<<GridLogMessage <<"M5=M5mf =  "<<M5<<std::endl;
+    LLscale = 1.0/(1-w0*w0)/(1-w0*w0);
+    LCscale = 1.0/(1-w0*w0)/(1-w0*w0);
+#endif
+    std::cout<<GridLogMessage <<"LLscale =  "<<LLscale<<std::endl;
+    std::cout<<GridLogMessage <<"LCscale =  "<<LCscale<<std::endl;
+  }
+
+  std::vector<RealD> masses({ 0.00} ); // u/d, s, c ??
+
+  int nmass = masses.size();
+
+  std::vector<MobiusFermionD *> FermActs;
+  
+  std::cout<<GridLogMessage <<"======================"<<std::endl;
+  std::cout<<GridLogMessage <<"MobiusFermion action as Scaled Shamir kernel"<<std::endl;
+  std::cout<<GridLogMessage <<"======================"<<std::endl;
+
+  for(auto mass: masses) {
+
+    RealD b=1.5;// Scale factor b+c=2, b-c=1
+    RealD c=0.5;
+    
+    FermActs.push_back(new MobiusFermionD(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,b,c));
+   
+  }
+
+  LatticePropagator point_source(UGrid);
+  //  LatticePropagator wall_source(UGrid);
+
+  Coordinate Origin({0,0,0,0});
+  PointSource   (Origin,point_source);
+  //  Z2WallSource  (RNG4,0,wall_source);
+  
+  std::vector<LatticePropagator> PointProps(nmass,UGrid);
+  //  std::vector<LatticePropagator> GaussProps(nmass,UGrid);
+  //  std::vector<LatticePropagator> Z2Props   (nmass,UGrid);
+
+  for(int m=0;m<nmass;m++) {
+    
+    Solve(*FermActs[m],point_source   ,PointProps[m]);
+  }
+
+  LatticeComplex phase(UGrid);
+  Coordinate mom({0,0,0,0});
+  MakePhase(mom,phase);
+  
+  for(int m1=0 ;m1<nmass;m1++) {
+  for(int m2=m1;m2<nmass;m2++) {
+    std::stringstream ssp,ssg,ssz;
+
+    ssp<<config<< "_m" << m1 << "_m"<< m2 << "_point_meson.xml";
+    ssz<<config<< "_m" << m1 << "_m"<< m2 << "_wall_meson.xml";
+
+    MesonTrace(ssp.str(),PointProps[m1],PointProps[m2],phase);
+    //    MesonTrace(ssz.str(),Z2Props[m1],Z2Props[m2],phase);
+  }}
+
+  Grid_finalize();
+}
+
+
+