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Subject: Re: [OMPI users] Mixing Linux's CPU-shielding with mpirun's bind-to-core
From: Siddhartha Jana (siddharthajana24_at_[hidden])
Date: 2013-08-18 09:09:44


So my question really boils down to:
How does one ensure that mpirun launches the processes on the "specific"
cores that are expected of them to be bound to.
As I mentioned, if there were a way to specify the cores through the
hostfile, this problem should be solved.

Thanks for all the quick replies,
-- Sid

On 18 August 2013 09:04, Siddhartha Jana <siddharthajana24_at_[hidden]> wrote:

> Thanks John. But I have an incredibly small system. 2 nodes - 16 cores
> each.
> 2-4 MPI processes. :-)
>
> On 18 August 2013 09:03, John Hearns <hearnsj_at_[hidden]> wrote:
>
>> You really should install a job scheduler.
>> There are free versions.
>>
>> I'm not sure about cpuset support in Gridengine. Anyone?
>>
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