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Subject: [OMPI users] MPI_Testsome with incount=0, NULL array_of_indices and array_of_statuses causes MPI_ERR_ARG
From: Jeremiah Willcock (jewillco_at_[hidden])
Date: 2012-03-09 18:17:43

On Open MPI 1.5.1, when I call MPI_Testsome with incount=0 and the two
output arrays NULL, I get an argument error (MPI_ERR_ARG). Is this the
intended behavior? If incount=0, no requests can complete, so the output
arrays can never be written to. I do not see anything in the MPI 2.2
standard that says either way whether this is allowed.

-- Jeremiah Willcock