[Mpi3-hybridpm] Fwd: [Mpi-comments] Thread synchronization for MPI_Get_address

Jeff Hammond jhammond at alcf.anl.gov
Mon Mar 25 16:46:43 CDT 2013

Jeremiah should definitely sign up for this list.  I agree that this
function and ones like it should be considered as part of our holistic
analysis of thread-safety requirements, to the extent that this is not
already implicit from what Bill and Rajeev have proposed already.


On Mon, Mar 25, 2013 at 4:35 PM, Schulz, Martin <schulzm at llnl.gov> wrote:
> Not sure who else still is getting mails from the comments list - the following came today and fits right into our current discussions.
> Martin
> Begin forwarded message:
>> From: Jeremiah Willcock <jewillco at osl.iu.edu>
>> Subject: [Mpi-comments] Thread synchronization for MPI_Get_address
>> Date: March 25, 2013 10:34:48 AM PDT
>> To: <mpi-comments at mpi-forum.org>
>> Reply-To: Comments on the MPI Standard <mpi-comments at lists.mpi-forum.org>
>> In MPI 3.0, is MPI_Get_address subject to the same threading rules as other MPI calls?  In particular, in MPI_THREAD_SERIALIZED mode, am I required to ensure that MPI_Get_address is not called at the same time as itself or other MPI code?  If it does require synchronization currently, would it make sense to change that requirement to be looser?
>> -- Jeremiah Willcock
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>> http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-comments
> ________________________________________________________________________
> Martin Schulz, schulzm at llnl.gov, http://people.llnl.gov/schulzm
> CASC @ Lawrence Livermore National Laboratory, Livermore, USA
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Jeff Hammond
Argonne Leadership Computing Facility
University of Chicago Computation Institute
jhammond at alcf.anl.gov / (630) 252-5381

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