Sorry this message escaped for so long it got buried in my INBOX. The problem you're seeing might be related to one we just answered about a similar situation:

    http://www.open-mpi.org/community/lists/users/2008/05/5657.php

See if using the pml_ob1_use_early_completion flag works for you.



On Apr 30, 2008, at 7:05 AM, Gabriele FATIGATI wrote:

Hi,
i tried to run SkaMPI benchmark on IBM-BladeCenterLS21-BCX system with 256 processors, but test has stopped on "AlltoAll-length" routine, with count=8192 for some reasons.

I have launched test with:
--mca btl_openib_eager_limit 1024

Same tests with 128 processor or less, have finished successful.

Different values of eager limit dont' solve the problem. Thanks in advance.
--------------------------
Gabriele Fatigati

CINECA Systems & Tecnologies Department

Supercomputing  Group

Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy

www.cineca.it                    Tel:    39 051 6171722

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Jeff Squyres
Cisco Systems

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