Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!think!ames!amelia!orville.nas.nasa.gov!eugene
From: eugene@orville.nas.nasa.gov (Eugene Miya)
Newsgroups: comp.arch
Subject: Re: Coherent cache for Killer Micros
Message-ID: <4095@amelia.nas.nasa.gov>
Date: 6 Dec 89 07:34:17 GMT
References: <13910002@hpisod2.HP.COM> <40110@lll-winken.LLNL.GOV>
Sender: news@amelia.nas.nasa.gov
Reply-To: eugene@orville.nas.nasa.gov (Eugene Miya)
Organization: NASA Ames Research Center, Moffett Field, CA
Lines: 10

>In article <13910002@hpisod2.HP.COM> dhepner@hpisod2.HP.COM (Dan Hepner) writes:
>>Is a coherent cache system essential or just nice?  And why?

Depends if you want "consistent" results.

If you can rely on heuristics like asynchronous chaotic relaxation
(do you really want to call this an algorithm? [Baudet 1980] then NO.
Otherwise, I think most people will answer YES (for consistent results).

--eugene miya