This web mail archive is frozen.
This page is part of a frozen web archive of this mailing list.
You can still navigate around this archive, but know that no new mails
have been added to it since July of 2016.
Click here to be taken to the new web archives of this list; it includes all the mails that are in this frozen archive plus all new mails that have been sent to the list since it was migrated to the new archives.
Currently in order to do message tracing one either has to rely on some
error prone postprocessing of data or replicating some MPI internals up
in the PMPI layer. It would help Sun's tools group (and I believe U
Dresden also) if Open MPI would create a couple APIs that exoposed the
1. PML Message ids used for a request
2. Context id for a specific communicator
I could see a couple ways of providing this information. Either by
extending the PERUSE probes or creating actual functions that one would
pass in a request handle or communicator handle to get the appropriate
This is just a thought right now which why this email is not in an RFC
format. I wanted to get a feel from the community as to the interest in
such APIs and if anyone may have specific issues with us providing such
interfaces. If the responses seems positive I will follow this message
up with an RFC.