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mpi: barrier wrapper #59

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merged 2 commits into from
May 17, 2024
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mpi: barrier wrapper #59

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5d4a991
mpi: barrier wrapper
cwpearson May 13, 2024
4af31db
mpi: barrier profiling region, space handling
cwpearson May 15, 2024
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11 changes: 9 additions & 2 deletions src/impl/KokkosComm_barrier.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -26,10 +26,17 @@
#include "KokkosComm_types.hpp"

namespace KokkosComm::Impl {
template <KokkosExecutionSpace ExecSpace>
void barrier(const ExecSpace &space, MPI_Comm comm) {

void barrier(MPI_Comm comm) {
Kokkos::Tools::pushRegion("KokkosComm::Impl::barrier");
MPI_Barrier(comm);
Kokkos::Tools::popRegion();
}

// a barrier in the provided space. For MPI, we have to fence the space and do a host barrier
template <KokkosExecutionSpace ExecSpace>
void barrier(const ExecSpace &space, MPI_Comm comm) {
space.fence("KokkosComm::Impl::barrier");
barrier(comm);
}
} // namespace KokkosComm::Impl