[mvapich-discuss] Binding processes to cores

[Dhabaleswar Panda]

Hi Michael,

Thanks for your suggestions. We have plans to incorporate some of these
schemes in future MVAPICH2 releases. For the time being, please use the
explicit manipulation scheme to achieve the desired bindings.

Thanks,

DK

On Fri, 21 Oct 2011, Michael E. Thomadakis wrote:

> Hello,
>
> 1) Besides the two options “bunch” and “scatter” or the explicit
> manipulation of the -hostfile, do we have any other way to fine tune the
> mapping of ranks to core or sockets ?
>
> 2) It would be convenient to have a way to select nodes and ranks as for
> instance in "round-robin mapping of ranks to nodes" or "assign 2 ranks /
> node" or "spread evenly ranks to nodes", etc. I have not seen an "easy"
> to do regular-pattern spreading of ranks to nodes. Did I miss
> documentation on this ?
>
> thanks.....
>
> Michael
>
>
>
> On 10/21/11 14:34, Jonathan Perkins wrote:
> > Hi, MVAPICH2 does this by default if you do not disable this during configure.
> >
> > Please take a look at the following pointers for more information.
> >
> > Overview:
> > http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.7.html#x1-500006.3
> >
> > Enabling/disabling affinity:
> > http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.7.html#x1-15900011.20
> >
> > Specifying process binding:
> > http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.7.html#x1-15200011.13
> > http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.7.html#x1-15300011.14
> >
> > On Fri, Oct 21, 2011 at 3:18 PM, vaibhav dutt
> > <vaibhavsupersaiyan9 at gmail.com>  wrote:
> >> Hi,
> >> I am trying to bind ranks to specific cores so that there is no process
> >> migration from one
> >> core to another during the program execution. How can I do it in MVAPICH2?
> >> Thanks
> >> _______________________________________________
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> >> mvapich-discuss at cse.ohio-state.edu
> >> http://mail.cse.ohio-state.edu/mailman/listinfo/mvapich-discuss
> >>
> >>
> >
> >
>
>
> --
> % -------------------------------------------------------------------- \
> % Michael E. Thomadakis, Ph.D.  Senior Lead Supercomputer Engineer/Res \
> % E-mail: miket AT tamu DOT edu                   Texas A&M University \
> % web:    http://alphamike.tamu.edu              Supercomputing Center \
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