[Mpi-forum] Communicator info arguments
balaji at mcs.anl.gov
Fri Dec 7 15:56:02 CST 2012
Apologies if this query needs to go a specific working group. I wasn't
sure which one, so I'm sending it to the overall mailing list.
If a communicator is created using MPI_COMM_DUP_WITH_INFO, is the info
argument "sticky" to all child communicators? That is, if I split the
output communicator further, will the info argument propagate?
Adam said that it would, at the Forum, but that doesn't seem accurate,
since that'll get weird if I do an Intercomm_merge with two
communicators, one of which has an info argument and the second does not.
I couldn't find text saying one way or another in the document.
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