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Subject: Re: [OMPI users] Open MPI on Cray XE6 / Gemini
From: Howard Pritchard (howardp_at_[hidden])
Date: 2012-10-10 10:56:07

Hello Christoph,

When ompi is configured with the lanl/cray_xe6/optimized-nopanasa,
you have to use the 'aprun' launch command.

Trying running your HelloWorldMPI as

aprun -n 1 HelloWorldMPI

Also, this particular config of ompi will not run in the 'cluster
mode environment.

Hope this helps,


On 10/10/2012 08:46 AM, Reuti wrote:
> Hi,
> Am 10.10.2012 um 14:50 schrieb Christoph Niethammer:
>> I just tried to use Open MPI 1.7a1r27416 on a Cray XE6 system. Unfortunately I get the following error when I run a simple HelloWorldMPI program:
>> $ pirun HelloWorldMPI
>> App launch reported: 2 (out of 2) daemons - 0 (out of 32) procs
>> ...
>> [unset]:_pmi_alps_get_appLayout:pmi_alps_get_apid returned with error: Bad file descriptor
>> [nid01766:20603] mca_oob_tcp_init: unable to create IPv4 listen socket: Unable to open a TCP socket for out-of-band communications
>> ...
>> The installation was configured with the following command:
>> ./configure --with-platform=contrib/platform/lanl/cray_xe6/optimized-nopanasas --prefix=$HOME/bin/mpi/openmpi/1.7a1r27416
> you are doing it local on the headnode only? It includes --with-alps by the platform file and there is the command `aprun` instead of `mpiexec` in the jobscript on a Cray. Maybe the allocation needs to be granted first.
> -- Reuti
>> I would be very happy if anybdy has an idea, what I could have missed during installation/runtime.
>> Thanks in advance.
>> Best regards
>> Christoph
>> --
>> Christoph Niethammer
>> High Performance Computing Center Stuttgart (HLRS)
>> Nobelstrasse 19
>> 70569 Stuttgart
>> Tel: ++49(0)711-685-87203
>> email: niethammer_at_[hidden]
>> _______________________________________________
>> users mailing list
>> users_at_[hidden]
> _______________________________________________
> users mailing list
> users_at_[hidden]

Howard Pritchard
Software Engineering
Cray, Inc.