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v1.10: coll/libnbc: fix MPI_Ialltoallv with MPI_IN_PLACE and without MPI par… #2276

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Merged
merged 1 commit into from
Oct 31, 2016
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v1.10: coll/libnbc: fix MPI_Ialltoallv with MPI_IN_PLACE and without MPI par… #2276

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16 changes: 9 additions & 7 deletions ompi/mca/coll/libnbc/nbc_ialltoallv.c
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Original file line number Diff line number Diff line change
Expand Up @@ -56,8 +56,6 @@ int ompi_coll_libnbc_ialltoallv(void* sendbuf, int *sendcounts, int *sdispls,
if (MPI_SUCCESS != res) { printf("MPI Error in MPI_Comm_rank() (%i)\n", res); return res; }
res= MPI_Comm_size(comm, &p);
if (MPI_SUCCESS != res) { printf("MPI Error in MPI_Comm_size() (%i)\n", res); return res; }
res = MPI_Type_extent(sendtype, &sndext);
if (MPI_SUCCESS != res) { printf("MPI Error in MPI_Type_extent() (%i)\n", res); return res; }
res = MPI_Type_extent(recvtype, &rcvext);
if (MPI_SUCCESS != res) { printf("MPI Error in MPI_Type_extent() (%i)\n", res); return res; }

Expand All @@ -82,11 +80,15 @@ int ompi_coll_libnbc_ialltoallv(void* sendbuf, int *sendcounts, int *sdispls,
if (OPAL_UNLIKELY(NULL == handle->tmpbuf)) { printf("Error in malloc()\n"); return NBC_OOR; }
sendcounts = recvcounts;
sdispls = rdispls;
} else if (sendcounts[rank] != 0) {
rbuf = (char *) recvbuf + rdispls[rank] * rcvext;
sbuf = (char *) sendbuf + sdispls[rank] * sndext;
res = NBC_Copy (sbuf, sendcounts[rank], sendtype, rbuf, recvcounts[rank], recvtype, comm);
if (NBC_OK != res) { printf("Error in NBC_Copy() (%i)\n", res); return res; }
} else {
res = MPI_Type_extent(sendtype, &sndext);
if (MPI_SUCCESS != res) { printf("MPI Error in MPI_Type_extent() (%i)\n", res); return res; }
if (sendcounts[rank] != 0) {
rbuf = (char *) recvbuf + rdispls[rank] * rcvext;
sbuf = (char *) sendbuf + sdispls[rank] * sndext;
res = NBC_Copy (sbuf, sendcounts[rank], sendtype, rbuf, recvcounts[rank], recvtype, comm);
if (NBC_OK != res) { printf("Error in NBC_Copy() (%i)\n", res); return res; }
}
}

if (inplace) {
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