ompi/communicator: optimize ompi_comm_split() #4673
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set grp_local_rank as MPI_UNDEFINED before invoking ompi_comm_nexcid() in order to benefit from the optimizations introduced in open-mpi/ompi@68167ec Signed-off-by: Gilles Gouaillardet <[email protected]>
artpol84
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Dec 28, 2017
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Thanks @ggouaillardet for finding this!
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set grp_local_rank as MPI_UNDEFINED before invoking
ompi_comm_nexcid() in order to benefit from the optimizations
introduced in 68167ec
Signed-off-by: Gilles Gouaillardet [email protected]