MPI_Neighbor_alltoallw 43 ompi/mpi/c/neighbor_alltoallw.c #define MPI_Neighbor_alltoallw PMPI_Neighbor_alltoallw MPI_Neighbor_alltoallw 49 ompi/mpi/c/neighbor_alltoallw.c int MPI_Neighbor_alltoallw(const void *sendbuf, const int sendcounts[], const MPI_Aint sdispls[],