Gilles, I tested your patch with our code and it fixed the problem. Thanks. --Junchao Zhang
On Thu, Jun 27, 2019 at 11:46 PM Gilles Gouaillardet via users <users@lists.open-mpi.org<mailto:users@lists.open-mpi.org>> wrote: Thanks Junchao, I issued https://github.com/open-mpi/ompi/pull/6782 in order to fix this (and the alltoallw variant as well) Meanwhile, you can manually download and apply the patch at https://github.com/open-mpi/ompi/pull/6782.patch Cheers, Gilles On 6/28/2019 1:10 PM, Zhang, Junchao via users wrote: > Hello, > When I do MPI_Neighbor_alltoallv or MPI_Ineighbor_alltoallv, I find > when either outdegree or indegree is zero, OpenMPI will return an > error. The suspicious code is at pneighbor_alltoallv.c / > pineighbor_alltoallv.c > > 101 } else if ((NULL == sendcounts) || (NULL == sdispls) || > 102 (NULL == recvcounts) || (NULL == rdispls) || > 103 MPI_IN_PLACE == sendbuf || MPI_IN_PLACE == recvbuf) { > 104 return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, > FUNC_NAME); > 105 } > > Apparently, the counts, displs error-checking should only be done > when degree != 0. > > Thanks. > --Junchao Zhang > > _______________________________________________ > users mailing list > users@lists.open-mpi.org<mailto:users@lists.open-mpi.org> > https://lists.open-mpi.org/mailman/listinfo/users _______________________________________________ users mailing list users@lists.open-mpi.org<mailto:users@lists.open-mpi.org> https://lists.open-mpi.org/mailman/listinfo/users
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