Path: utzoo!attcan!uunet!husc6!bloom-beacon!mit-eddie!ll-xn!ames!pioneer!eugene
From: eugene@pioneer.arpa (Eugene N. Miya)
Newsgroups: comp.lang.fortran
Subject: Re: Fortran follies
Message-ID: <10757@ames.arc.nasa.gov>
Date: 23 Jun 88 20:27:59 GMT
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Reply-To: eugene@pioneer.UUCP (Eugene N. Miya)
Organization: NASA Ames Research Center, Moffett Field, Calif.
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In article <777@garth.UUCP> smryan@garth.UUCP (Steven Ryan) writes:
>64 elements for a Cray, 4096 for a Cyber 990, 65535 for a Cyber 205/ETA 10.
>I don't know what IBM vectors are like. Is the Hitachi machine (?VPxxxx)
>in existent yet?

FYI:
IBM 3090 is 128 32-bit elements or 64 64-bit elements.
Flame on:
What burns me up about these figures is that some literature has IBM
making vectors legit (e.g., didn't they invent virtual memory? ;-) "Don't mind
the man behind the curtain") and that 64-elements was determined to be
the best length by sophisticated research (probably market rather than
simulation).  Anyway flame off.
You are confusing the Hitachi and the Fujitsu.
The Hitachi S-810 line is an IBM 370 compatible long vector machine.
I've not run on it.
The Fujitsu VP-200 [also 50, 100, and 400] aka Amdahl 1200 is also
370-compatible and long vectors [not compat] have 65K length vectors
closer to the 205/10s.  They were built and delivered years ago
(82/3).  The VP line is the second most populous supercomputer in the
world.
4K length vectors for the 990 sound interesting.  I should go try one.