[Mpi-forum] MPI user survey
treumann at us.ibm.com
Tue Nov 17 11:48:10 CST 2009
I will leave it to Alexander to for a question about subsetting if he
wishes to. Here is one about assertions.
The MPI standard provides certain semantic guarantees that may not be
required by a
particular application. It also provides functions that many applications
never use. If MPI-3
provided an "assertions" interface that would let an application identify
functionality it does not depend on and an MPI library could improve
performance or reduce
memory usage by disabling that specific functionality, how valuable might
that interface be?
Dick Treumann - MPI Team
IBM Systems & Technology Group
Dept X2ZA / MS P963 -- 2455 South Road -- Poughkeepsie, NY 12601
Tele (845) 433-7846 Fax (845) 433-8363
mpi-forum-bounces at lists.mpi-forum.org wrote on 11/17/2009 11:40:03 AM:
> [image removed]
> Re: [Mpi-forum] MPI user survey
> Jeff Squyres
> Main MPI Forum mailing list
> 11/17/2009 11:41 AM
> Sent by:
> mpi-forum-bounces at lists.mpi-forum.org
> Please respond to Main MPI Forum mailing list
> On Nov 17, 2009, at 8:16 AM, Supalov, Alexander wrote:
> > No objections - let's go for 2 separate questions, e.g.:
> > "Do you want to achieve higher performance by disabling certain
> > MPI-3 features in your program?
> I do not think that this is a well-formed question.
> It directly states something that has not been well defined (or even
> accepted) by the Forum. Specifically: it is *by no means guaranteed*
> that you will get higher performance by disabling certain MPI-3
> features. Heck, we don't even know precisely what MPI-3 features will
> > "If so, do you prefer subsetting or assertions?"
> The others questions contain at least a hint of context so that
> respondents have a clue as to how to answer. This one explains
> neither "subsetting" nor "assertions". I suspect that 95% of
> respondents will not know how to answer.
> Jeff Squyres
> jsquyres at cisco.com
> mpi-forum mailing list
> mpi-forum at lists.mpi-forum.org
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