Newsgroups: comp.parallel.mpi
From: Mathias Waack <mathias@mufasa.informatik.uni-mannheim.de>
Subject: Solved: Deadlock in MPICH with blocking Send/Rec
Organization: Dept. of Computer Science, University of Mannheim, Germany
Date: Tue, 27 Jan 1998 14:34:12 +0100
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Message-ID: <34CDE254.176C@mufasa.informatik.uni-mannheim.de>

Hi,

the problem was a simple mistake in the code, sender and 
receiver were swapped. For that reason the sender sends 
all messages to itself which caused a deadlock after 
filling the message buffer of the MPI. Special thanks 
to Alexander N. Andreyev, his list of possible mistakes 
gave me the right solution.

Mathias

-- 
Mathias Waack		|     mathias@mufasa.informatik.uni-mannheim.de
Tel.:  +49 621 292 1620  Fax.:  +49 621 292 5597