Newsgroups: comp.parallel.mpi
From: eddemain@neumann.uwaterloo.ca (Erik Demaine)
Subject: Re: Concurrency doubts
Organization: University of Waterloo
Date: Mon, 2 Sep 1996 17:36:55 GMT
Message-ID: <Dx48xK.F54@undergrad.math.uwaterloo.ca>

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

MPI-2 is not yet complete, and so has not been implemented by IBM :).
Hopefully MPI-2 will explicitly address threads.  There have been proposals.

Eric Salo (salo@mrjones.engr.sgi.com) wrote:
: 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.

Is that for MPI-1 or 2?

Erik
-- 
Erik Demaine                 \/  e-mail: eddemain@neumann.uwaterloo.ca
Dept. of Computer Science    {}  URL: http://barrow.uwaterloo.ca/~eddemain/
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