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Subject: Re: [OMPI users] Problem with AlltoAll routine
From: Brad Benton (bradford.benton_at_[hidden])
Date: 2008-05-06 22:30:17


Hello Gabriele,

To help track down this problem, could I ask you to take a look at the Open
MPI "Getting Help" page?
  http://www.open-mpi.org/community/help/

In particular, if you could collect and send the information requested on
that page to the list, it will help us to better understand your
configuration and how others might reproduce the problem.

Thanks & Regards,
--Brad

Brad Benton
IBM

On Tue, May 6, 2008 at 10:35 AM, Gabriele FATIGATI <g.fatigati_at_[hidden]>
wrote:

> Hi,
> i tried to run SkaMPI 5.0.4 benchmark on IBM-BladeCenterLS21 system with
> 256 processors over Infiniband 5 Gb/s, but test has stopped on
> "AlltoAll-length" routine, with count=2048 for some reason.
>
> 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 don't solve the problem. Version of
> OpenMPI involved is 1.2.5. There's someone with this kind of problem over
> Infiniband?
> 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
>
> g.fatigati_at_[hidden]
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