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From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2004-05-17 17:19:09


On Sun, 16 May 2004, Lucas Finn wrote:

> If I'm posting this LAM MPI question to the wrong mailing list, please
> let me know.

This is the right place! :-)

> I'm trying to perform interthread communication with MPI using lam-7.0.4
> on a Beowolf cluster. I have two threads trying to swap messages each
> using one MPI_Send and one MPI_Recv. The problem is neither thread's
> MPI_Recv completes. Any thoughts?

Unfortunately, LAM/MPI 7.x does not support concurrent threads within the
MPI library. :-( See the User Docs and the FAQ for more information
(e.g., FAQ, "Typical Setup of LAM", "Can LAM be used with multi-threaded
user code?")

-- 
{+} Jeff Squyres
{+} jsquyres_at_[hidden]
{+} http://www.lam-mpi.org/