On Nov 27, 2011, at 3:11 PM, Arnaud Heritier wrote:
> Hello,
>
> I run into a stange problem with qlogic OFED and openmpi. When i submit (through SGE) 2 jobs on the same node, the second job ends up with:
>
> (ipath/PSM)[10292]: can't open /dev/ipath, network down (err=26)
>
> I'm pretty sure the infiniband is working well as the other job runs fine.
>
> Here is details about the configuration:
>
> Qlogic HCA: InfiniPath_QMH7342 (2 ports but only one connected to a switch)
> qlogic_ofed-1.5.3-7.0.0.0.35 (rocks cluster roll)
> openmpi 1.5.4 (./configure --with-psm --with-openib --with-sge)
>
> -------------
>
> In order to fix this problem i recompiled openmpi without psm support, but i faced an other problem:
>
> The OpenFabrics (openib) BTL failed to initialize while trying to
> allocate some locked memory. This typically can indicate that the
> memlock limits are set too low. For most HPC installations, the
> memlock limits should be set to "unlimited". The failure occured
> here:
>
> Local host: compute-0-6.local
> OMPI source: btl_openib.c:329
> Function: ibv_create_srq()
> Device: qib0
> Memlock limit: unlimited
>
>