Xref: utzoo comp.lang.fortran:799 comp.software-eng:640
Path: utzoo!attcan!uunet!nuchat!sugar!ssd
From: ssd@sugar.UUCP (Scott Denham)
Newsgroups: comp.lang.fortran,comp.software-eng
Subject: Re: Fortran follies
Summary: More vector sizes
Message-ID: <2168@sugar.UUCP>
Date: 24 Jun 88 07:05:25 GMT
References: <5377@cup.portal.com> <2852@mmintl.UUCP> <1005@cresswell.quintus.UUCP> <777@garth.UUCP>
Organization: Sugar Land UNIX - Houston, TX
Lines: 22

In article <777@garth.UUCP>, smryan@garth.UUCP writes:
 Lots of stuff deleted..........
> 
> 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?

The IBM vectors are 128 elements in the current implementation, but the
architecture definition allows for 16 (I think) to 512; it's done in a
nice way so the compiler doesn't have to KNOW what it is. 
 
The Amdahl (Fujitsu) VP's have a reconfigurable register section that 
can go from something like 8 regs of 8192 to 256 regs of 256. If the
Hitachi machine is the one being nmarketed here by NAS, it exists, and
they claim some pretty impressive price/performance relative to the IBM
3090's. 

 
   Scott Denham 
 
*** None of this has anything to do with my employer... I heard it from
my cat.