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Subject: Re: [OMPI devel] delivering SIGUSR2 to an ompi process
From: Steve Wise (swise_at_[hidden])
Date: 2010-08-25 14:04:15


On 08/25/2010 12:43 PM, Ralph Castain wrote:
> On Aug 25, 2010, at 11:26 AM, Steve Wise wrote:
>
>
>> On 08/25/2010 11:33 AM, Ralph Castain wrote:
>>
>>> We don't use it - mpirun traps it and then propagates it by default to all remote procs.
>>>
>>>
>>>
>> So I should send the signal to the mpirun process?
>>
> Yes - however, note that it will be propagated to ALL processes in the job.
>
> If you want to only get the signal in one proc, you can just do a "kill" to that specific process on its node. We don't trap signals on the application procs themselves, so your proc can do whatever it wants with it.
>
>
>

Something is funny then. When I send SIGUSR2 to the process itself -or-
to the mpirun proc, it just kills the process and doesn't get to my sig
handler. And my same library works when I run the job using mvapich2.

I'll keep digging.

Thanks!

Steve.