Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!decwrl!nsc!voder!apple!bcase From: bcase@Apple.COM (Brian Case) Newsgroups: comp.arch Subject: Re: SPARC and multiprocessing Message-ID: <9261@apple.Apple.Com> Date: 30 Apr 88 21:55:40 GMT References: <1521@pt.cs.cmu.edu> <28200135@urbsdc> <4921@bloom-beacon.MIT.EDU> <1671@alliant.Alliant.COM> Reply-To: bcase@apple.UUCP (Brian Case) Organization: Apple Computer Inc, Cupertino, CA Lines: 14 In article <1671@alliant.Alliant.COM> jeff@alliant.UUCP (Jeff Collins) writes: > > Here's an interesting question for the SPARC guru's of the world: > > Given that the SPARC must use a virtual cache to get optimal > performance, how does one build a multiprocessor with a SPARC? > > As far as I know, no one has solved the virtual cache coherency > problem yet... Read about the SPUR project being done at Berkeley. They have a large virtual cache, in-cache address translation (only done on misses), and the system concept is a small (about 10) multiprocessor. Some neat ideas.