[OMPI users] infiniband question

[Yann JOBIC]

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



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___________________________

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