[Mpi-forum] New tickets on MPI Virtual Topology Functions
Bronis R. de Supinski
bronis at llnl.gov
Mon Oct 12 11:29:44 CDT 2009
The basic goal -- improving the usability of Cartesian
communicators -- is definitely worthwhile. The specific
proposals seem reasonable; I might tweak the wordings...
Are the two proposals mutually exclusive? One seeks to
improve MPI_Dims_create while the other proposes to
deprecate it. It seems like we should go one way or the
other but not both. I suppose we could enact both if
we omit part one (the deprecation) of the second.
Could we just deprecate MPI_Dims_create and replace it
with a new function that serves the exact same purpose
but also has a communicator argument? I seem to recall
that the idea was that sometimes the user either needs
to do some data movement prior to the communicator
creation or might want to fine-tune the results that
MPI_Cart_create would otherwise provide...
I gues the other changes to MPI_Cart_create would still
be needed but do not necessarily eliminate the need for
the manual process.
On Sun, 11 Oct 2009, Pavan Balaji wrote:
> We created two new tickets on MPI_Dims_create and MPI_Cart_create
> Please take a look at them and any comments as appropriate.
> -- Pavan
> PS: Is there an MPI-3 mailing list where these kind of emails are more
> appropriate, instead of the general MPI Forum mailing list?
> Pavan Balaji
> mpi-forum mailing list
> mpi-forum at lists.mpi-forum.org
More information about the mpi-forum