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- Path: sparky!uunet!usc!sdd.hp.com!uakari.primate.wisc.edu!ames!agate!dog.ee.lbl.gov!nosc!sunspot!wolfgang
- From: wolfgang@sunspot.nosc.mil (Lewis E. Wolfgang)
- Newsgroups: comp.arch
- Subject: Call for Opinion: Viking or i860
- Message-ID: <5678@nosc.NOSC.MIL>
- Date: 30 Jul 92 23:53:36 GMT
- Sender: nobody@nosc.NOSC.MIL
- Lines: 25
- Originator: wolfgang@sunspot
-
- Call for opinion:
-
- We run large acoustic modeling programs on a
- variety of Sun Sparc systems and in the past have
- considered purchasing array processors to hasten things
- along. It seems as if many array processors are based
- on Intel's i660 chip, certainly a respectable
- numerical masticator, but how does it stack up against
- current RISC based CPUs?
-
- We have a Sun 690MP that we could upgrade to
- SuperSparc (Viking) with SuperCache for not much more
- money than an equal number of i860 based processors.
- It seems as if integer performance is better with Sparc,
- with floating point not quite as good. An advantage of
- a Sparc upgrade is that old code would not have to be
- modified, at a cost of slightly less relative floating
- point performance.
-
- What do you think? Upgrade the cpu with Viking?
- Or purchase an equal number of i860 based array processors?
-
- Thanks,
- Lew Wolfgang
- wolfgang@nosc.mil
-