[mvapich-discuss] Binding processes to cores

[Michael E. Thomadakis]

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
>> _______________________________________________
>> mvapich-discuss mailing list
>> mvapich-discuss at cse.ohio-state.edu
>> http://mail.cse.ohio-state.edu/mailman/listinfo/mvapich-discuss
>>
>>
>
>


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