[Mpi-forum] Request for Reading: Clarify alignment of memory provided to applications

Joseph Schuchart schuchart at hlrs.de
Mon Feb 18 06:17:41 CST 2019

Dear MPI forum members,

[Apologies for double-posting, I did not receive a notification for my 
previous mail and it does not show up in the archives]

I would like to request a reading of the changes proposed in issue #121 
"Clarify alignment of memory provided to applications": 

The changes to the standard text are detailed in PR #96 and include a 
requirement for proper alignment suitable for load/store accesses of 
predefined MPI types and adds a new info key to allow users to request 
bigger alignments:

A PDF file with the proposed changes highlighted can be found here:

This issue has been discussed in the RMA-WG before and I would like to 
propose this for MPI 4.0. I am not familiar with the internal processes 
of the MPI forum so please let me know if there are any issues with this 

Many thanks in advance,
Joseph Schuchart
Dipl.-Inf. Joseph Schuchart
High Performance Computing Center Stuttgart (HLRS)
Nobelstr. 19
D-70569 Stuttgart

Tel.: +49(0)711-68565890
Fax: +49(0)711-6856832
E-Mail: schuchart at hlrs.de

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