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From: FARKAS Zoltan (zfarkas_at_[hidden])
Date: 2004-10-20 08:51:30


Jeff Squyres írta:
> On Oct 19, 2004, at 5:32 PM, zfarkas_at_[hidden] wrote:
>
>> I'm experimenting with checkpointing using the 'self' module. I'd
>> like to know
>> if I can be sure that the message queues are empty (no messages are being
>> transferred on the network) when the running MPI processes get singal
>> SIGUSR1.
>
>
> No, you cannot. You can only be sure that no messages will be lost upon
> restart.
But I can be sure that the crtcp rpi module arranges messages for me, I
mean I don't need to take care about pending messages upon checkpoint or
restart?
Thanks,

        Zoltan