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<div class="">Hi Jorge,</div>
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<div class="">You can try the debug event logging described in <a href="https://wiki.mpich.org/mpich/index.php/Debug_Event_Logging" class="">https://wiki.mpich.org/mpich/index.php/Debug_Event_Logging</a>.</div>
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<div class="">Regards,</div>
<div class="">Sangmin</div>
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<blockquote type="cite" class="">
<div class="">On Jul 26, 2016, at 11:57 AM, Jorge Bellón <<a href="mailto:jorge.bellon@bsc.es" class="">jorge.bellon@bsc.es</a>> wrote:</div>
<br class="Apple-interchange-newline">
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<div class="">Hi,<br class="">
I am currently working with dynamic process creation with MPI using<br class="">
MPI_Comm_spawn_multiple.<br class="">
<br class="">
However, I'm facing issues during the application cleanup:<br class="">
MPI_Comm_disconnect function is hung and does not ever return (it is<br class="">
being called by all the processes involved in the intercommunicator).<br class="">
<br class="">
I know this issue could happen when there are unfinished communications<br class="">
(this has already happened to me in the past), in a similar way<br class="">
MPI_Finalize waits until all the communications in all the<br class="">
communicators are completed.<br class="">
<br class="">
This time, though, I'm not able to track which communications haven't<br class="">
finished yet. I was able to trace all the calls to the library using<br class="">
gdb and breakpoints, but everything seems OK to me.<br class="">
<br class="">
Is there any way to log the start and arrival of the messages (maybe<br class="">
using configure "--enable-g" option or setting one of the environment<br class="">
variables)?<br class="">
<br class="">
Thanks in advance.<br class="">
<br class="">
Regards,<br class="">
Jorge<br class="">
<br class="">
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