Merge branch 'develop' into bugfix/ET_go_home

* develop:
  SYCL prep - no sycl just make it compile through DPC++
  dpc++ didn't like rdtsc()
  Make compile if HAVE_LIME=0
  Lime optional

Grid/Grid_Eigen_Dense.h

@@ -22,8 +22,18 @@
 #undef __CUDACC__
 #undef __CUDA_ARCH__
 #define __NVCC__REDEFINE__
+#endif 
+
+/* SYCL save and restore compile environment*/
+#ifdef __SYCL_DEVICE_ONLY__  
+#pragma push
+#pragma push_macro("__SYCL_DEVICE_ONLY__")
+#undef __SYCL_DEVICE_ONLY__
+#undef EIGEN_USE_SYCL
+#define EIGEN_DONT_VECTORIZE
 #endif
 
+
 #include <Grid/Eigen/Dense>
 #include <Grid/Eigen/unsupported/CXX11/Tensor>
 
@@ -35,7 +45,14 @@
 #pragma pop
 #endif
 
+/*SYCL restore*/
+#ifdef __SYCL__REDEFINE__
+#pragma pop_macro("__SYCL_DEVICE_ONLY__")
+#pragma pop
+#endif
+
 #if defined __GNUC__
 #pragma GCC diagnostic pop
 #endif
 
+

Grid/perfmon/PerfCount.h

@@ -95,7 +95,8 @@ inline uint64_t cyclecount(void){
 }
 #elif defined __x86_64__
 inline uint64_t cyclecount(void){ 
-  return __rdtsc();
+  uint64_t ret = __rdtsc();
+  return (uint64_t)ret;
 }
 #else