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Author: caltinay
Date: Tue Dec 20 06:22:39 2016 UTC (9 months ago)
Changed paths: 1
Log Message:
Added '--mca io romio314' to guineapig options to get around a regression(?) in
OMPIO.
Basically it looks like current OpenMPI in Debian blocks when calling
MPI_File_write_shared from a subset of ranks only (which we do in a test).
My understanding of the spec is that this should not block as it's not a
collective operation and it certainly works with ROMIO and IntelMPI which is
why I think it may be a regression. This should probably be asked on the
OpenMPI mailing list. I have a test case if required.


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Directorytrunk/scons/guineapig_options.py modified , text changed

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