Newsgroups: comp.parallel.mpi
From: Luke Lonergan
Subject: Re: Concurrency doubts
Organization: Earthlink Network, Inc.
Date: Sun, 01 Sep 1996 05:26:39 GMT
Message-ID: <50b9iu$nn6@bolivia.earthlink.net>

fter having just discussed MPI 2 with a group of developers at
Mississippi State University, I know that the MPI standard specifies
thread safety.  Whether IBM implemented it correctly or not, I don't
know.

Luke

Enric Guinovart Gracia <enricg@ac.upc.es> wrote:

>Hello, 

>I'm a computer engineering student and I'm working in a parallel
>processing
>project on an IBM SP2, and I have some problems.

>I'm using the MPI-F implementation but I must run concurrently some
>procedures
>on a single processor, too.

>I have doubts on how to get concurrency on a single processor On SP2,
>perhaps
>some C compiler directives, threads, MPI_Spawn (perhaps in future), ...

>If one of the possibilities is the use of threads, there are some added
>questions: Is MPI-F thread-safe ?  Is there some thread library on SP2 ?

>I have some dificulties in getting user's guides by now ...

>Thanks,

>Enric



