Re: MPI-2.1 corrections, Batch 2 / AlltoallW

[Tony Skjellum <tony@MPI-Softtech.Com>]

The "w" does not stand for anything.  I think we had "s" previous to that
from Lloyd Lewins...

Anthony Skjellum, PhD, President (tony@mpi-softtech.com)
MPI Software Technology, Inc., Ste. 33, 101 S. Lafayette, Starkville, MS 39759
+1-(662)320-4300 x15; FAX: +1-(662)320-4301; http://www.mpi-softtech.com
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On Fri, 20 Jul 2001, Richard Treumann wrote:

> I like the name Rolf suggests.  MPI_Alltoallx could stand for MPI_Alltoall
> (eXtended).
>
> I assume MPI_Alltoall-> MPI_Alltoallv in MPI-1 was to suggest the addition
> of vectors of displacements.
>
> I never knew what the choice of "w" in going from Alltoallv -> Alltoallw
> was about.  Did the "w" stand for something?  If we use Alltoallx and
> someday decide that is deficient we can do Alltoally and Alltoallz  (;>).
>
> MPI_Alltoallve (Alltoall vector enhanced) or MPI_Alltoallvx (Alltoall
> vector extended) are a couple more options that would even be mnemonic.
>
>          Dick
>
> Dick Treumann                RS/6000 SP Development
> IBM Poughkeepsie Unix Development Lab
> Dept 0lva / MS P963 -- 2455 South Road -- Poughkeepsie, NY 12601
> Tele (845) 433-7846         Fax (845) 433-8363
>
> ----- Forwarded by Richard Treumann/Poughkeepsie/IBM on 07/20/2001 09:26 AM
> -----
>
>                     Rolf Rabenseifner
>                     <Rabenseifner@RUS.Uni-Stu       To:     mpi-21@mpi-forum.org
>                     ttgart.DE>                      cc:
>                     Sent by:                        Subject:     Re: MPI-2.1 corrections, Batch 2 / AlltoallW
>                     owner-mpi-21@mpi-forum.or
>                     g
>
>
>                     07/20/2001 08:48 AM
>                     Please respond to mpi-21
>
>
>
>
>
> I started the discussion in Nov. 2000 and now, after reading all the
> arguments, I would also prefer to define a new function,
> e.g., MPI_Alltoallx, with MPI_Aint for the displacement arguments.
>
> And MPI_Alltoallw can go to the deprecated function list.
>
> Rolf
>
>
> Dr. Rolf Rabenseifner                      High Performance Computing
> Parallel Computing                         Center Stuttgart    (HLRS)
> Rechenzentrum Universitaet Stuttgart (RUS) Phone:    ++49 711 6855530
> Allmandring 30                             FAX:      ++49 711 6787626
> D-70550 Stuttgart                   rabenseifner@rus.uni-stuttgart.de
> Germany                        http://www.hlrs.de/people/rabenseifner
>
>
>