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Subject: Re: [OMPI users] Processor/core selection/affinity for large shared memory systems
From: Terry Frankcombe (terry_at_[hidden])
Date: 2008-12-04 21:09:16


Isn't it up to the OS scheduler what gets run where?

> We have an 8-way, 32-core AMD processor machine (single system image)
> and are at present running OpenMPI 1.2.8 . Jobs are launched locally on
> the machine itself. As far as I can see, there doesn't seem to be any
> way to tell OpenMPI to launch the MPI processes on adjacent cores.
> Presumably such functionality is technically possible via PLPA. Is
> there in fact a way to specify such a thing with 1.2.8, and if not, will
> 1.3 support these kinds arguments?
>
> Thank you.
> --
> V. Ram
> v_r_959_at_[hidden]
>
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