[gridengine users] Tight integration problem with mvapich2 2.0

Reuti reuti at staff.uni-marburg.de
Wed Jan 7 12:36:20 UTC 2015


Hi,

> Am 07.01.2015 um 13:18 schrieb Götz Waschk <goetz.waschk at gmail.com>:
> 
> Hi everyone,
> 
> I have noticed one difference in the behaviour of mvapich2 between 1.8 and 2.0rc1: with the former, hydra_pmi_proxy and all mpi processes are in the same process group, but with the later version, they all have a different pgid. Just killing hydra_pmi_proxy will terminate all mpi processes with 1.8 but not with 2.0rc1.

Yes, the default is to kill the process group (done by a negative pid as argument). But you can try to use the additional group id to look for all kids:

$ qconf -sconf
...
execd_params                 ENABLE_ADDGRP_KILL=TRUE

-- Reuti


> Any idea to work around this?
> 
> Regards, Götz
> 
> 
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