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Subject: Re: [OMPI users] Program runs successfully...but with error messages displayed
From: Yann JOBIC (jobic_at_[hidden])
Date: 2009-08-27 10:34:49


Jean Potsam wrote:
> Dear All,
> I have installed openmpi 1.3.2 on one on the nodes of
> our cluster and is running a simple helloword mpi program. The program
> runs fine but I get a lot of unexpected messages in between the result.
>
> ##########################################
>
> jean_at_n06:~/examples$ mpirun -np 2 --host n06 hello_c
> libibverbs: Fatal: couldn't read uverbs ABI version.
> --------------------------------------------------------------------------
> [[11410,1],1]: A high-performance Open MPI point-to-point messaging module
> was unable to find any relevant network interfaces:
>
> Module: OpenFabrics (openib)
> Host: n06
>
> Another transport will be used instead, although this may result in
> lower performance.
> --------------------------------------------------------------------------
> libibverbs: Fatal: couldn't read uverbs ABI version.
>
> Hello, world, I am 0 of 2 and running on n06
> Hello, world, I am 1 of 2 and running on n06
>
>
> [n06:08470] 1 more process has sent help message help-mpi-btl-base.txt
> / btl:no-nics
> [n06:08470] Set MCA parameter "orte_base_help_aggregate" to 0 to see
> all help / error messages
>
> ##########################
>
> Does anyone know why these messages appear and how to fix this.
>
> Thanks
>
> Jean
>
>
> start: 0000-00-00 end: 0000-00-00
> ------------------------------------------------------------------------
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users
You can define some default parameter in the
$OMPIDIR/etc/openmpi-mca-params.conf

For instance, you can add :
# Exclude openib BTL, not currently supported
btl = ^openib,ofud

Yann

-- 
___________________________
Yann JOBIC
HPC engineer
Polytech Marseille DME
IUSTI-CNRS UMR 6595
Technopôle de Château Gombert
5 rue Enrico Fermi
13453 Marseille cedex 13
Tel : (33) 4 91 10 69 39
  ou  (33) 4 91 10 69 43
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