Newsgroups: comp.parallel.mpi
From: salo@mrjones.engr.sgi.com (Eric Salo)
Subject: Re: Concurrency doubts
Organization: Silicon Graphics, Inc.  Mountain View, CA
Date: 1 Sep 1996 07:31:55 GMT
Message-ID: <50be5b$pkg@murrow.corp.sgi.com>

> fter having just discussed MPI 2 with a group of developers at
> Mississippi State University, I know that the MPI standard specifies
> thread safety.

Not quite. It is not a violation of the standard for an implementation
to be thread-unsafe. The intent was merely that MPI not get in the way
of multi-threaded implementations should any arise. So, for example,
MPI has no notion of a global error code, nor of a "current" pack/unpack
buffer. And so on.

Eric Salo         Silicon Graphics Inc.             "Do you know what the
(415)933-2998     2011 N. Shoreline Blvd, 8U-802     last Xon said, just
salo@sgi.com      Mountain View, CA   94043-1389     before he died?"

