MPI_Ialltoallw 40 ompi/mpi/c/ialltoallw.c #define MPI_Ialltoallw PMPI_Ialltoallw MPI_Ialltoallw 46 ompi/mpi/c/ialltoallw.c int MPI_Ialltoallw(const void *sendbuf, const int sendcounts[], const int sdispls[],