Scenario 2: --map-by ppr:12:node,span --bind-to core

will put 12 procs on each node, load balanced across the sockets, each proc
bound to 1 core

HTH
Ralph


On Wed, Jul 1, 2015 at 2:42 PM, Saliya Ekanayake <esal...@gmail.com> wrote:

> Hi,
>
> I am doing some benchmarks and would like to test the following two
> scenarios. Each machine has 4 sockets each with 6 cores (lstopo image
> attached).
>
> Scenario 1
> ---
> Run 12 procs per node each bound to 2 cores. I can do this by --map-by
> socket:PE=2
>
> Scenario 2
> Run 12 procs per node each bound to just 1 core. This is what I don't know
> how to do, because if I do --map-by socket:PE=1 then mpirun will put more
> than 12 procs per node as it can do so.
>
> I'd appreciate any help on this.
>
> Thank you,
> Saliya
>
> --
> Saliya Ekanayake
> Ph.D. Candidate | Research Assistant
> School of Informatics and Computing | Digital Science Center
> Indiana University, Bloomington
> Cell 812-391-4914
> http://saliya.org
>
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