[mpich-discuss] Error code for MPI_Type_commit and free

[Junchao Zhang]

I think it is an oversight.  MPI_Type_free in MPICH is ok with uncommitted
datatypes. I will correct it.
Thanks.

--Junchao Zhang

On Fri, Dec 5, 2014 at 8:04 AM, Marc-Andre Hermanns <m.a.hermanns at grs-sim.de
> wrote:

> Dear MPICH team,
>
> I just recently stumbled over the MPICH manpage for MPI_Type_commit and
> MPI_Type_free.
>
> In the description of MPI_ERR_TYPE it states:
>
> "MPI_ERR_TYPE
>     Invalid datatype argument. May be an uncommitted MPI_Datatype (see
> MPI_Type_commit). "
>
> What is meant by an uncommitted MPI_Datatype? As far as I know,
> MPI_Type_free should be callable on uncommitted datatypes. So why is
> there this reference to the commit state?
>
> Cheers,
> Marc-Andre
> --
> Marc-Andre Hermanns
> Jülich Aachen Research Alliance,
> High Performance Computing (JARA-HPC)
> German Research School for Simulation Sciences GmbH
>
> Schinkelstrasse 2
> 52062 Aachen
> Germany
>
> Phone: +49 241 80 99753
> Fax: +49 241 80 6 99753
> www.grs-sim.de/parallel
> email: m.a.hermanns at grs-sim.de
>
>
> _______________________________________________
> discuss mailing list     discuss at mpich.org
> To manage subscription options or unsubscribe:
> https://lists.mpich.org/mailman/listinfo/discuss
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mpich.org/pipermail/discuss/attachments/20141205/e9c464f5/attachment.html>
-------------- next part --------------
_______________________________________________
discuss mailing list     discuss at mpich.org
To manage subscription options or unsubscribe:
https://lists.mpich.org/mailman/listinfo/discuss