Path: utzoo!attcan!uunet!ogicse!emory!hubcap!jet
From: jet@karazm.math.uh.edu (J. Eric Townsend)
Newsgroups: comp.parallel
Subject: Re: simple coarse-grained parallel programs
Message-ID: <12192@hubcap.clemson.edu>
Date: 11 Dec 90 12:39:18 GMT
References: <12179@hubcap.clemson.edu>
Sender: fpst@hubcap.clemson.edu
Organization: University of Houston -- Department of Mathematics
Lines: 27
Approved: parallel@hubcap.clemson.edu

In article <12179@hubcap.clemson.edu> anand@top.cis.syr.edu (Rangachari Anand) writes:
>1. At Caltech they used a group of workstations as a virtual hypercube.

"Cosmic Environment" is available from CalTech, but I don't know what
restrictions they place. (We have it here...)

>3. There seems to be some work at Brown University in distributing
>ray-tracing over workstations.

CE uses iPSC-style calls (iPSC-os looks remarkably similar to CE in several
places, what a coinkadink :-); so it should be no problem to port the irisa
VM_pRay or whatever it's called over to a network of nodes.  It would die
a horrible flaming death, however, as it relies heavily on inter-node
communications.

I'm working on a parallel ray-tracer written in PC that (at this time) is
*very* coarse-grained, that is, there is no processor-processor communication
at all. :-)

It runs under CE quite well.

PC can be obtained from karazm.math.uh.edu(129.7.7.6):pub/Parallel/pc*

--
J. Eric Townsend     Internet: jet@uh.edu    Bitnet: jet@UHOU
Systems Mangler - UH Dept. of Mathematics - (713) 749-2120
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