[mvapich-discuss] How do you select a specific InfiniBand SL to be used by MVAPICH2?

[Hari Subramoni]

Hello Eitan,

You can use the "MV2_DEFAULT_SERVICE_LEVEL" environment variable to select
the SL to be used by MPI traffic. There is no need for any additional
config flags, the default build will have this enabled.

Please note that this will be a job wide setting, i.e, all processes
belonging to that job will use the particular SL (I think this is what you
want as well).

Regards,
Hari.


On Tue, Jan 28, 2014 at 10:32 AM, Eitan Zahavi <eitan at mellanox.com> wrote:

>  Dear MVAPICH users and support team,
>
>
>
> I want to run MVAPICH2 and select specific SL for the MPI traffic.
>
> Although the release notes say it is supported, I could not find exactly
> how to configure it.
>
>
>
> Please advise
>
>
>
> Thanks
>
> Eitan
>
>
>
> *Eitan Zahavi*
> Senior Principal Engineer
> Mellanox Technologies LTD
>
> Mellanox Bldg.
> Yokneam, Israel 20692
>
> Office line: +972-4-9097208
> Cell line: +972-544-478803
> Fax line: +972-4-9593245
>
>
>
> _______________________________________________
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>
>
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