[mvapich-discuss] cpu placement with mpiexec?

[Lei Chai]

mpirun_rsh should do the work and you don't have to use rsh and the -rsh 
option. By default ssh is used and it should work well.

Lei

Joseph Hargitai wrote:
>> The new mpirun_rsh framework takes into account the modern multi-core
>> architectures (i.e., establishing connections first to a leader in a node
>> and then to other cores in that node in a hierarchical manner). Thus, 
>> the
>> start-up becomes faster and can scale to larger number of nodes/cores. 
>> The
>> job termination/cleanup issue with mpirun_rsh you are mentioning has been
>> solved with some of the recent patches. If you download and use mvapich
>> 1.1RC1 or the trunk version of mvapich2 1.2 (not rc2), you will get these
>> fixes.  These fixes will be part of the formal mvapich 1.1 and mvapich2
>> 1.2 releases (which are coming soon).
>>     
>
>
> will mpirun_rsh alone do the cleanup or you need rsh really to be working on the nodes, and pass the -rsh  option?
>
> j
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