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v3.1.x: Cart/Graph create would not run the next_cid algorithm #6424

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Merged
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Mar 1, 2019
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v3.1.x: Cart/Graph create would not run the next_cid algorithm #6424

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4 changes: 4 additions & 0 deletions ompi/communicator/comm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1887,6 +1887,10 @@ int ompi_comm_enable(ompi_communicator_t *old_comm,
{
int ret = OMPI_SUCCESS;

/* set the rank information before calling nextcid */
new_comm->c_local_group->grp_my_rank = new_rank;
new_comm->c_my_rank = new_rank;

/* Determine context id. It is identical to f_2_c_handle */
ret = ompi_comm_nextcid (new_comm, old_comm, NULL, NULL, NULL, false,
OMPI_COMM_CID_INTRA);
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