Newsgroups: comp.parallel.pvm
From: eddemain@neumann.uwaterloo.ca (Erik Demaine)
Subject: Re: PVM broadcast/multicast on Ethernet?
Organization: University of Waterloo
Date: Wed, 4 Sep 1996 12:20:57 GMT
Message-ID: <Dx7JMx.p14@undergrad.math.uwaterloo.ca>

Erik D'Hollander (edh@elis.rug.ac.be) wrote:
: We parallelize loops and distribute them to n slaves.
: The slaves all operate on the same matrix, which is
: therefore broadcast with pvm_mcast to all slaves. 
: However, network traffic analysis shows that the matrix 
: is sent n times instead of only once.

This is correct.

: Is there a PVM library out there which implements
: these promising broadcast library routines in a TCP/IP
: Ethernet LAN network of "regular brand" Unix workstations 
: <strong>EFFICIENTLY</strong>?

Check out ECO (Efficient Collective Operations?) at:

        http://www.cs.cmu.edu/afs/cs.cmu.edu/Web/People/ECO/

I think this does what you want.

Erik
-- 
Erik Demaine                 \/  e-mail: eddemain@neumann.uwaterloo.ca
Dept. of Computer Science    {}  URL: http://barrow.uwaterloo.ca/~eddemain/
University of Waterloo       []  PGP public key: finger above e-mail address
Waterloo, ON Canada N2L 3G1  ()  

