C++ (Cpp) MPIR_Bcast_inter_autoの例

コード例 #1

ファイル: bcast.c プロジェクト: jeffhammond/mpich

int MPIR_Bcast_impl(void *buffer, int count, MPI_Datatype datatype, int root, MPIR_Comm * comm_ptr,
                    MPIR_Errflag_t * errflag)
{
    int mpi_errno = MPI_SUCCESS;

    if (comm_ptr->comm_kind == MPIR_COMM_KIND__INTRACOMM) {
        /* intracommunicator */
        switch (MPIR_CVAR_BCAST_INTRA_ALGORITHM) {
            case MPIR_CVAR_BCAST_INTRA_ALGORITHM_binomial:
                mpi_errno =
                    MPIR_Bcast_intra_binomial(buffer, count, datatype, root, comm_ptr, errflag);
                break;
            case MPIR_CVAR_BCAST_INTRA_ALGORITHM_scatter_recursive_doubling_allgather:
                mpi_errno =
                    MPIR_Bcast_intra_scatter_recursive_doubling_allgather(buffer, count, datatype,
                                                                          root, comm_ptr, errflag);
                break;
            case MPIR_CVAR_BCAST_INTRA_ALGORITHM_scatter_ring_allgather:
                mpi_errno =
                    MPIR_Bcast_intra_scatter_ring_allgather(buffer, count, datatype, root, comm_ptr,
                                                            errflag);
                break;
            case MPIR_CVAR_BCAST_INTRA_ALGORITHM_nb:
                mpi_errno = MPIR_Bcast_allcomm_nb(buffer, count, datatype, root, comm_ptr, errflag);
                break;
            case MPIR_CVAR_BCAST_INTRA_ALGORITHM_auto:
                MPL_FALLTHROUGH;
            default:
                mpi_errno = MPIR_Bcast_intra_auto(buffer, count, datatype, root, comm_ptr, errflag);
                break;
        }
    } else {
        /* intercommunicator */
        switch (MPIR_CVAR_BCAST_INTER_ALGORITHM) {
            case MPIR_CVAR_BCAST_INTER_ALGORITHM_remote_send_local_bcast:
                mpi_errno =
                    MPIR_Bcast_inter_remote_send_local_bcast(buffer, count, datatype, root,
                                                             comm_ptr, errflag);
                break;
            case MPIR_CVAR_BCAST_INTER_ALGORITHM_nb:
                mpi_errno = MPIR_Bcast_allcomm_nb(buffer, count, datatype, root, comm_ptr, errflag);
                break;
            case MPIR_CVAR_BCAST_INTER_ALGORITHM_auto:
                MPL_FALLTHROUGH;
            default:
                mpi_errno = MPIR_Bcast_inter_auto(buffer, count, datatype, root, comm_ptr, errflag);
                break;
        }
    }
    if (mpi_errno)
        MPIR_ERR_POP(mpi_errno);

  fn_exit:
    return mpi_errno;
  fn_fail:
    goto fn_exit;
}

コード例 #2

ファイル: bcast.c プロジェクト: ParaStation/psmpi2

int MPIR_Bcast_impl(void *buffer, int count, MPI_Datatype datatype, int root, MPIR_Comm * comm_ptr,
                    MPIR_Errflag_t * errflag)
{
    int mpi_errno = MPI_SUCCESS;

    if (comm_ptr->comm_kind == MPIR_COMM_KIND__INTRACOMM) {
        /* intracommunicator */
        switch (MPIR_Bcast_intra_algo_choice) {
            case MPIR_BCAST_INTRA_ALGO_BINOMIAL:
                mpi_errno =
                    MPIR_Bcast_intra_binomial(buffer, count, datatype, root, comm_ptr, errflag);
                break;
            case MPIR_BCAST_INTRA_ALGO_SCATTER_RECURSIVE_DOUBLING_ALLGATHER:
                mpi_errno =
                    MPIR_Bcast_intra_scatter_recursive_doubling_allgather(buffer, count, datatype,
                                                                          root, comm_ptr, errflag);
                break;
            case MPIR_BCAST_INTRA_ALGO_SCATTER_RING_ALLGATHER:
                mpi_errno =
                    MPIR_Bcast_intra_scatter_ring_allgather(buffer, count, datatype, root, comm_ptr,
                                                            errflag);
                break;
            case MPIR_BCAST_INTRA_ALGO_NB:
                mpi_errno = MPIR_Bcast_allcomm_nb(buffer, count, datatype, root, comm_ptr, errflag);
                break;
            case MPIR_BCAST_INTRA_ALGO_AUTO:
                MPL_FALLTHROUGH;
            default:
                mpi_errno = MPIR_Bcast_intra_auto(buffer, count, datatype, root, comm_ptr, errflag);
                break;
        }
    } else {
        /* intercommunicator */
        switch (MPIR_Bcast_inter_algo_choice) {
            case MPIR_BCAST_INTER_ALGO_REMOTE_SEND_LOCAL_BCAST:
                mpi_errno =
                    MPIR_Bcast_inter_remote_send_local_bcast(buffer, count, datatype, root,
                                                             comm_ptr, errflag);
                break;
            case MPIR_BCAST_INTER_ALGO_NB:
                mpi_errno = MPIR_Bcast_allcomm_nb(buffer, count, datatype, root, comm_ptr, errflag);
                break;
            case MPIR_BCAST_INTER_ALGO_AUTO:
                MPL_FALLTHROUGH;
            default:
                mpi_errno = MPIR_Bcast_inter_auto(buffer, count, datatype, root, comm_ptr, errflag);
                break;
        }
    }
    if (mpi_errno)
        MPIR_ERR_POP(mpi_errno);

  fn_exit:
    return mpi_errno;
  fn_fail:
    goto fn_exit;
}