Newsgroups: comp.parallel.mpi
From: sundar@crete.cis.ohio-state.edu (N Sundar)
Subject: MPI_Alltoall() on Cray T3D
Summary: How does EPCC MPI implement complete exchange on the T3D?
Keywords: complete exchange
Organization: The Ohio State University, Department of Computer and Information Science
Date: 25 Oct 1996 15:42:48 -0400
Message-ID: <54r57oINNa6k@crete.cis.ohio-state.edu>


MPI provides a call called MPI_Alltoall() that performs complete
(all-to-all personalized) exchange. We are using it on the Cray T3D,
which has an MPI implementation from EPCC, Edinburg (sp?), U.K.  
Does anybody out there know what algorithm is used by this
implementation to perform all-to-all? Alternatively, are there any 
pointers to this?

Thanks in advance.
Sundar.
-- 
------------+----------------Disclaimer: These are my opinions only.
N. S. Sundar!    I am ardently against all awkward, affected, 
GTA,CIS,OSU.!    arbitrary and aimless alliteration.
INTJ        !    WWW: http://www.cis.ohio-state.edu/~sundar/

