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Subject: Re: [OMPI users] infiniband question
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2009-09-17 09:40:23


Correct, you don't need DAPL. Can you send all the information listed
here:

     http://www.open-mpi.org/community/help/

On Sep 17, 2009, at 9:17 AM, Yann JOBIC wrote:

> Hi,
>
> I'm new to infiniband.
> I installed the rdma_cm, rdma_ucm and ib_uverbs kernel modules.
>
> When i'm running a ring test openmpi code, i've got :
> [Lidia][0,1,1][btl_openib_endpoint.c:
> 992:mca_btl_openib_endpoint_qp_init_query]
> Set MTU to IBV value 4 (2048 bytes)
> [Lidia][0,1,1][btl_openib_endpoint.c:
> 992:mca_btl_openib_endpoint_qp_init_query]
> Set MTU to IBV value 4 (2048 bytes)
> [Lilou][0,1,0][btl_openib_endpoint.c:
> 992:mca_btl_openib_endpoint_qp_init_query]
> Set MTU to IBV value 4 (2048 bytes)
> [Lilou][0,1,0][btl_openib_endpoint.c:
> 992:mca_btl_openib_endpoint_qp_init_query]
> Set MTU to IBV value 4 (2048 bytes)
>
> And then, the program hangs.
>
> I thought i only need rdma communications, and don't need the DALP lib
> (with the iboip module).
>
> I am wrong ?
>
> Thanks,
>
> 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
> Fax : (33) 4 91 10 69 69
>
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>

-- 
Jeff Squyres
jsquyres_at_[hidden]