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Subject: Re: [OMPI users] how to find the binding of each rank on the local machine
From: Brice Goglin (Brice.Goglin_at_[hidden])
Date: 2013-02-10 03:08:08


I've been talking with Kranthi offline, he wants to use locality info
inside OMPI. He needs the binding info from *inside* MPI. From 10
thousands feet, it looks like communicator->rank[X]->locality_info as a
hwloc object or as a hwloc bitmap.

Brice

Le 10/02/2013 06:07, Ralph Castain a écrit :
> Add --report-bindings to the mpirun cmd line
>
> Remember, we do not bind processes by default, so you will need to include something about the binding to use (by core, by socket, etc.) on the cmd line
>
> See "mpirun -h" for the options
>
> On Feb 9, 2013, at 8:46 PM, Kranthi Kumar <kranthipls_at_[hidden]> wrote:
>
>> Hello Sir,
>>
>> I need a way to find out where each rank runs from inside the implementation?
>> How do I know the binding of each rank in an MPI application?
>>
>> Thank You
>> --
>> Kranthi _______________________________________________
>> users mailing list
>> users_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>
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