HIP: use coarse grained host memory (AMReX-Codes#2932)

Thierry992 · Sep 7, 2022 · 9525ea8 · 9525ea8
1 parent 7e04016
commit 9525ea8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Src/Base/AMReX_Arena.cpp b/Src/Base/AMReX_Arena.cpp
@@ -144,7 +144,7 @@ Arena::allocate_system (std::size_t nbytes)
     else if (arena_info.device_use_hostalloc)
     {
         AMREX_HIP_OR_CUDA_OR_DPCPP(
-            AMREX_HIP_SAFE_CALL (hipHostMalloc(&p, nbytes, hipHostMallocMapped));,
+            AMREX_HIP_SAFE_CALL (hipHostMalloc(&p, nbytes, hipHostMallocMapped|hipHostMallocNonCoherent));,
             AMREX_CUDA_SAFE_CALL(cudaHostAlloc(&p, nbytes, cudaHostAllocMapped));,
             p = sycl::malloc_host(nbytes, Gpu::Device::syclContext()));
     }