[Mpi3-ft] Latest version of chapter

[Supalov, Alexander]

Not really. How do you want the user make sense of that? E.g., I call A on commA, fail on commA asynchronously while calling a totally unrelated B on commB that has no failures in it, and am kicked out of B into someone else's error handler saying some "A" on "comma" failed? And what now? I may even have A and commA out of scope by then, possibly forever.

-----Original Message-----
From: mpi3-ft-bounces at lists.mpi-forum.org [mailto:mpi3-ft-bounces at lists.mpi-forum.org] On Behalf Of Darius Buntinas
Sent: Friday, October 21, 2011 9:35 PM
To: MPI 3.0 Fault Tolerance and Dynamic Process Control working Group
Subject: Re: [Mpi3-ft] Latest version of chapter

With (regular) error handlers, they'll be called from within the function that raises the error.  With failure notification, because they're being called as a result of an external event (process failure), you could be called from within any function, even one not related to the comm/file/win that you registered the process failure notification handler on.

Does that make sense?

-d

On Oct 21, 2011, at 1:51 PM, Sur, Sayantan wrote:

> 17.5.1:11-12 - "The error handler function will be called by the MPI implementation from within the context of some MPI function that was called by the user."
> 
> Maybe we should that error handlers are called from MPI functions that are associated with that comm/file/win?
> 
> 
> 
>> -----Original Message-----
>> From: mpi3-ft-bounces at lists.mpi-forum.org [mailto:mpi3-ft-
>> bounces at lists.mpi-forum.org] On Behalf Of Josh Hursey
>> Sent: Friday, October 21, 2011 10:28 AM
>> To: MPI 3.0 Fault Tolerance and Dynamic Process Control working Group
>> Subject: Re: [Mpi3-ft] Latest version of chapter
>> 
>> I just wanted to note that we want to distribute a copy of this
>> chapter to the MPI Forum before the meeting. As such we are planning
>> on sending out a copy at COB today (so Friday ~5:00 pm EDT) so that
>> people have an opportunity to look at the document before the Monday
>> plenary. So please send any edits or comments before COB today, so we
>> can work them into the draft.
>> 
>> We will post the draft to the ticket, so that people know where to
>> look for the current draft.
>> 
>> Thanks,
>> Josh
>> 
>> 
>> 
>> On Thu, Oct 20, 2011 at 7:06 PM, Darius Buntinas <buntinas at mcs.anl.gov>
>> wrote:
>>> 
>>> Here's the latest version of the FT chapter is on the wiki (it's in a
>> new location on the main FT page under "ticket #276".  Please have a
>> look and comment.
>>> 
>>> Here's a direct link to the PDF:
>>>    https://svn.mpi-forum.org/trac/mpi-forum-web/raw-
>> attachment/wiki/FaultToleranceWikiPage/ft.pdf
>>> 
>>> Here's a summary of the changes Josh and I made:
>>> 
>>> * Minor wording touchups
>>> * Added new semantic for MPI_ANY_SOURCE with the
>> MPI_ERR_ANY_SOURCE_DISABLED error code
>>> * Coverted wording for all comm, win, fh creation operations to not
>> require collectively active communicators (eliminate requirement for
>> synchronization)
>>> * Added missing reader_lock to ANY_SOURCE example
>>> * Added case for MPI_WIN_TEST
>>> 
>>> and
>>> 
>>> One-sided section
>>>    clarified that window creation need not be blocking
>>>    clarified that RMA ops might not complete correctly even if
>>>      synchronization ops complete without error due to process
>>>      failures
>>> Process failure notification
>>>    Added section describing new functions to add callbacks to comms,
>>>      wins and files that are called when proc failure is detected
>>> Other wordsmithing/cleanup changes
>>> 
>>> -d
>>> _______________________________________________
>>> mpi3-ft mailing list
>>> mpi3-ft at lists.mpi-forum.org
>>> http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi3-ft
>>> 
>>> 
>> 
>> 
>> 
>> --
>> Joshua Hursey
>> Postdoctoral Research Associate
>> Oak Ridge National Laboratory
>> http://users.nccs.gov/~jjhursey
>> 
>> _______________________________________________
>> mpi3-ft mailing list
>> mpi3-ft at lists.mpi-forum.org
>> http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi3-ft
> 
> _______________________________________________
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