Date: Fri, 20 Jul 2001 09:06:11 -0500 (CDT) From: Tony Skjellum To: Subject: Re: MPI-2.1 corrections, Batch 2 / AlltoallW In-Reply-To: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-mpi-21@XXXXXXXXXXXXX Precedence: bulk Reply-To: mpi-21@XXXXXXXXXXXXX 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 "Best-of-breed Software for Beowulf and Easy-to-Own Commercial Clusters." 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 > 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@XXXXXXXXXXXXXXXXXXXX > Germany http://www.hlrs.de/people/rabenseifner > > >