[mvapich-discuss] Mvapich2 over OFA: number of CQ entries

[gossips J]

I guess you need to use "mv2_default_max_cq_size" param and see if it solves
your problem or not.

-Polk.

On Thu, Jun 11, 2009 at 5:43 PM, Dhabaleswar Panda <panda at cse.ohio-state.edu
> wrote:

> > Hello Mvapich2 Team,
> >
> > Recently we have observed that MVAPICH2 over OFA does not run any test
> (i.e.
> > IMB-MPI1, IMB-EXT, OSU, rotate etc.) due to CQEs being passed in
> > "ibv_create_cq()".
> >
> > Issue:
> >
> > Our provider supports only 32K (0x8000) CQEs where as MVAPICH2 calls
> > create_cq() with 0x9c40 CQEs.
>
> Can you provide more details on your adapter and the characteristics of
> the provider library. It does not appear to be a standard InfiniBand
> adapter. Is it an iWARP adapter?
>
> > This causes failure and not able to run any tests further.
> >
> > Is there any workaround for the same which limits CQEs being created from
> > Mvapich2?
>
> Since we do not have access to such adapters, it is hard to determine what
> is going on here. More details about the adapter and its
> characteristics will be helpful.
>
> Thanks,
>
> DK
>
> >
> >
> > Thanks,
> >
> >
> >
> > Sumit Panchasara
> >
> > Embedded Engineer - eInfochips Ltd., India.
> >
> > www.einfochips.com
> >
> >
> >
> >
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