Path: utzoo!dciem!array!colin
From: colin@array.UUCP (Colin Plumb)
Newsgroups: comp.arch
Subject: Re: Killer Micro II
Message-ID: <632@array.UUCP>
Date: 28 Aug 90 19:50:35 GMT
References: <527@llnl.LLNL.GOV> <603@array.UUCP> <2482@l.cc.purdue.edu>
Organization: Array Systems Computing, Inc., Toronto, Ontario, CANADA
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In article <2482@l.cc.purdue.edu> cik@l.cc.purdue.edu (Herman Rubin) writes:
> There are plenty of mathematical calculations which need lots of computing,
> but use little data. I doubt if these vaunted machines will be much good
> at a three-dimensional numerical integral, for example. And how good is
> their integer arithmetic? If accurate calculation is needed, and this is
> not all that unusual, floating point is essentially useless.
They also do integer ops at the same 100 MHz rate. Why would they be no
good at a 3-d numerical integrals? They work at Cray speeds and have
shorter pipelines. 50 MFLOPS *scalar*. It impresses the hell out of me.
Besides which, it never hurts to use FP - I can always ignore the FP exponent
field and find myself dealing with 52-bit integers. FP inexactness only
happens if you do things that wouldn't work exactly with integers, either.
--
-Colin