Path: utzoo!attcan!utgpu!utstat!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!vette!brooks
From: brooks@vette.llnl.gov (Eugene Brooks)
Newsgroups: comp.arch
Subject: Re: superscalar
Message-ID: <26641@lll-winken.LLNL.GOV>
Date: 9 Jun 89 06:26:14 GMT
References: <26356@lll-winken.LLNL.GOV> <14FU029t326G01@amdahl.uts.amdahl.com> <26434@lll-winken.LLNL.GOV> <GRUNWALD.89Jun7094931@flute.cs.uiuc.edu>
Sender: usenet@lll-winken.LLNL.GOV
Reply-To: brooks@maddog.llnl.gov (Eugene Brooks)
Organization: Lawrence Livermore National Laboratory
Lines: 18

In article <GRUNWALD.89Jun7094931@flute.cs.uiuc.edu> grunwald@flute.cs.uiuc.edu writes:
>
>If I remember correctly, electron transport code is seperable, and ports well
>to distributed memory multi-processors right?
This was a photon transport code, and it evolved the interaction between photons
and atoms in an implicit manner.  The implicit coupling causes a linear system
to get created as the result of the Monte Carlo and this must be solved for
the atomic populations and resulting photon weights.  Its not as trivial to
parallelize as one might think, but the micro based machines have incredible
leverage.

>Intel has plans to produce a successor the iPSC/2 based on the the i860, and
>finally using a reasonable I/O architecture. They plan to produce 2048-node
>systems for DARPA.
I have no comment on this rumor.


brooks@maddog.llnl.gov, brooks@maddog.uucp