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Optional host buffer bounce for no CUDA aware MPI

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Peter Boyle
2025-01-28 15:22:46 +00:00
parent 1caf8b0f86
commit 74a4f43946
7 changed files with 84 additions and 53 deletions
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12
configure.ac
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@ -240,6 +240,18 @@ case ${ac_SFW_FP16} in
esac
############### MPI BOUNCE TO HOST
AC_ARG_ENABLE([accelerator-aware-mpi],
[AS_HELP_STRING([--enable-accelerator-aware-mpi=yes|no],[run mpi transfers from device])],
[ac_ACCELERATOR_AWARE_MPI=${enable_accelerator_aware_mpi}], [ac_ACCELERATOR_AWARE_MPI=yes])
case ${ac_ACCELERATOR_AWARE_MPI} in
yes)
AC_DEFINE([ACCELERATOR_CSHIFT],[1],[ Cshift runs on device])
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])],