[mpich-discuss] Hydra torque support issues

Pavan Balaji balaji at mcs.anl.gov
Fri Apr 19 08:42:06 CDT 2013

On 04/19/2013 07:36 AM US Central Time, Bharath Ramesh wrote:
> On 4/19/2013 3:10 AM, Pavan Balaji wrote:
>> https://trac.mpich.org/projects/mpich/ticket/1812
> Not a problem. I understand using tm_spawn to launch proxies on the
> sister moms. To launch proxy on the mother superior one doesnt need to
> use tm_spawn, i.e., mpiexec can fork it on mother superior. I havent
> looked through the code to see if this is the issue.

Correct.  The part that complicates this issue is that with some
processes launched with tm_spawn and some with fork, we'll need to do a
combination of waitpid and tm_poll to wait for their completion -- which
is a bit of pain when we have to keep the timeout period in mind that
the user can specify.

 -- Pavan

Pavan Balaji

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