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Subject: Re: [OMPI users] Possible regression from 1.2 to 1.3 when BLACS isinvolved
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2009-03-30 14:35:37


Just to follow up for the web archives, this is *likely* connected to
the critical bug that we recently announced:

     http://www.open-mpi.org/community/lists/announce/2009/03/0029.php

On Mar 24, 2009, at 1:17 PM, Åke Sandgren wrote:

> We're having problems with code that uses BLACS and openmpi 1.3.x.
> When compiled with memory-manager turned on (base only), code using
> BLACS either start leaking memory or gets into some kind of deadlock.
> The first code-case can be circumvented by using
> mpi_leave_pinned_pipeline 0, but the second one could only be solved
> by
> compiling openmpi without memory manager.
>
> Building 1.3.1 with ptmalloc2-internal makes the second code break in
> different ways.
>
> Anyone else seen similar problems when using BLACS?
>
> --
> Ake Sandgren, HPC2N, Umea University, S-90187 Umea, Sweden
> Internet: ake_at_[hidden] Phone: +46 90 7866134 Fax: +46 90 7866126
> Mobile: +46 70 7716134 WWW: http://www.hpc2n.umu.se
>
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-- 
Jeff Squyres
Cisco Systems