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Subject: Re: [OMPI devel] Pessimist Event Logger
From: Hugo Daniel Meyer (meyer.hugo_at_[hidden])
Date: 2012-01-27 11:19:27


Hello Aurélien.

Thanks for the clarification. Considering what you've mentioned i will have
to make some adaptations, because to me, every single message has to be
logged. So, a sender not only will be sending messages to the receiver, but
also to an event logger. Is there any considerations that i've to take into
account when modifying the code?. My initial idea is to use the el_comm
with a group of event loggers (because every node uses a different event
logger in my approach), and then send the messages to them as you do when
using MPI_ANY_SOURCE.

Thanks for your help.

Hugo Meyer

2012/1/27 Aurélien Bouteiller <bouteill_at_[hidden]>

> Hugo,
>
> Your program does not have non-deterministic events. Therefore, there are
> no events to log. If you add MPI_ANY_SOURCE, you should see this code being
> called. Please contact me again if you need more help.
>
> Aurelien
>
>
> Le 27 janv. 2012 à 10:21, Hugo Daniel Meyer a écrit :
>
> > Hello @ll.
> >
> > George, i'm using some pieces of the pessimist vprotocol. I've observed
> that when you do a send, you call vprotocol_receiver_event_flush and here
> the macro __VPROTOCOL_RECEIVER_SEND_BUFFER is called. I've noticed that
> here you try send a copy of the message to process 0 using the el_comm.
> This section of code is never executed, at least in my examples. So, the
> message is never sent to the Event Logger, am i correct with this? I think
> that this is happening because the
> mca_vprotocol_pessimist.event_buffer_length is always 0.
> >
> > Is there something that i've got to turn on, or i will have to modify
> this behavior manually to connect and send messages to the EL?
> >
> > Thanks in advance.
> >
> > Hugo Meyer
> > _______________________________________________
> > devel mailing list
> > devel_at_[hidden]
> > http://www.open-mpi.org/mailman/listinfo.cgi/devel
>
> --
> * Dr. Aurélien Bouteiller
> * Researcher at Innovative Computing Laboratory
> * University of Tennessee
> * 1122 Volunteer Boulevard, suite 350
> * Knoxville, TN 37996
> * 865 974 6321
>
>
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