diff --git a/Grid/threads/Accelerator.h b/Grid/threads/Accelerator.h
index 5bf17072..74a3ea22 100644
--- a/Grid/threads/Accelerator.h
+++ b/Grid/threads/Accelerator.h
@@ -336,12 +336,11 @@ inline void acceleratorCopyFromDevice(void *from,void *to,size_t bytes){ hipMemc
 //////////////////////////////////////////////
 // CPU Target - No accelerator just thread instead
 //////////////////////////////////////////////
+#define GRID_ALLOC_ALIGN (2*1024*1024) // 2MB aligned 
 #if ( (!defined(GRID_SYCL)) && (!defined(GRID_CUDA)) && (!defined(GRID_HIP)) )
 
 #undef GRID_SIMT
 
-#define GRID_ALLOC_ALIGN (2*1024*1024) // 2MB aligned 
-
 #define accelerator 
 #define accelerator_inline strong_inline
 #define accelerator_for(iterator,num,nsimd, ... )   thread_for(iterator, num, { __VA_ARGS__ });
@@ -367,6 +366,14 @@ inline void acceleratorFreeDevice(void *ptr){free(ptr);};
 
 #endif // CPU target
 
+#ifdef HAVE_MM_MALLOC_H
+inline void *acceleratorAllocCpu(size_t bytes){return _mm_malloc(bytes,GRID_ALLOC_ALIGN);};
+inline void acceleratorFreeCpu  (void *ptr){_mm_free(ptr);};
+#else
+inline void *acceleratorAllocCpu(size_t bytes){return memalign(GRID_ALLOC_ALIGN,bytes);};
+inline void acceleratorFreeCpu  (void *ptr){free(ptr);};
+#endif
+
 ///////////////////////////////////////////////////
 // Synchronise across local threads for divergence resynch
 ///////////////////////////////////////////////////