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mpi: contiguous send wrapper #56

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merged 2 commits into from
May 17, 2024
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mpi: contiguous send wrapper #56

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2e0586f
mpi: contiguous low-level send
cwpearson May 13, 2024
4b35d33
mpi: send profile region
cwpearson May 15, 2024
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14 changes: 14 additions & 0 deletions src/impl/KokkosComm_send.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,20 @@

namespace KokkosComm::Impl {

template <KokkosView SendView>
void send(const SendView &sv, int dest, int tag, MPI_Comm comm) {
Kokkos::Tools::pushRegion("KokkosComm::Impl::send");
using KCT = typename KokkosComm::Traits<SendView>;
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if (KCT::is_contiguous(sv)) {
using SendScalar = typename SendView::non_const_value_type;
MPI_Send(KCT::data_handle(sv), KCT::span(sv), mpi_type_v<SendScalar>, dest, tag, comm);
} else {
throw std::runtime_error("only contiguous views supported for low-level send");
}
Kokkos::Tools::popRegion();
}

template <CommMode SendMode = CommMode::Default, KokkosExecutionSpace ExecSpace, KokkosView SendView>
void send(const ExecSpace &space, const SendView &sv, int dest, int tag, MPI_Comm comm) {
Kokkos::Tools::pushRegion("KokkosComm::Impl::send");
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