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Date: Thu, 17 Jun 1999 13:04:44 -0500
To: mpi-core@XXXXXXXXXXX
From: William Gropp <gropp@XXXXXXXXXXX>
Subject: MPI_PROC_NULL as target rank in RMA
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Is it invalid to use MPI_PROC_NULL as the target rank in MPI_Put, MPI_Get,
and MPI_Accumulate?  I can make the case both for and against this, based
on the text in the standard.  It would match the spirit of the standard
(which says that MPI_PUT is like a send at the origin and a receive at the
target) to allow MPI_PROC_NULL.

Bill