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coll: add a new bcast composition #6781
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Group the next two blocks of code under
But shouldn't
MPIDI_NM_mpi_bcast
take care of buffer swap anyway?There was a problem hiding this comment.
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Do you mean group the buffer allocation and inter-node bcast?
I can try to use MPIDI_NM_mpi_bcast to take care of the buffer swap, the performance should be similar.
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I think doing the explicit data swap as the current code is better than using MPIDI_NM_mpi_bcast to take care of the buffer swap as it is easier to see the difference between the composition alpha and delta.