[mpich-discuss] HYDRA and kill process

[Jain, Rohit]

I have seen same problem and reported earlier. It is not just ctrl-c, even if your process on one host crashes, it leaves other parallel host processes.

I think Pavan has already fixed it in newer version. Right, Pavan?

Regards,
Rohit


-----Original Message-----
From: mpich-discuss-bounces at mcs.anl.gov [mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Torquil Macdonald Sørensen
Sent: Thursday, March 24, 2011 12:10 PM
To: mpich-discuss at mcs.anl.gov
Subject: [mpich-discuss] HYDRA and kill process

Hi!

With mpich-1.3.2, say I run a parallel job consisting of two processes running a 
hostA and hostB. They are started by running mpiexec on hostA.

If I (on hostA) hit CTRL-c to kill my job, the process on hostB keeps running...

With earlier MPICH2 versions, without HYDRA, the behaviour was different. The 
whole job (all processes on all hosts) were killed when I hist CTRL-c on the 
host where mpiexec was run.

Any pointers on how to "restore" the old behaviour when using the newest MPICH2 
and HYDRA?

Or is it a bug?

Best regards
Torquil Sørensen
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