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Subject: Re: [Mpi3-subsetting] MPI subsetting: charting the way forward atatelecon next week?
From: Richard Treumann (treumann_at_[hidden])
Date: 2008-06-20 13:12:24


Of course -

An assertion is a statement that the application does not require some MPI
standard feature or semantic guarantee. It is not a directive to the MPI
implementation. The implementation is free to provide that feature or
guarantee even if the application says it is not needed.

The story is a bit different for a helper library because the library is
logically a more or less opaque part of the application. If the caller of
MPI_INIT_ASSERTED says the application does not require something and then
uses a library that does require that feature or guarantee - the library
must raise an error or adjust its behavior to live within the assertion.

Dick Treumann - MPI Team/TCEM
IBM Systems & Technology Group
Dept 0lva / MS P963 -- 2455 South Road -- Poughkeepsie, NY 12601
Tele (845) 433-7846 Fax (845) 433-8363

mpi3-subsetting-bounces_at_[hidden] wrote on 06/20/2008 12:58:03
PM:

> Hi,
>
> Ignoring an assertion should be perfectly legal.
>
> Best regards.
>