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Article #2448Re: Mips / MHz
From: Eugene D. Brooks III
Date: Fri, 02 May 1986 03:53
Date: Fri, 02 May 1986 03:53
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In article <315@garth.UUCP> kissell@garth.UUCP (Kevin Kissell) writes: >Indeed, if cycle time is truly a function of circuit technology, >one wonders how Seymour Cray has managed to get such fast cycle times >with technology that he gleefully admits was a generation behind the >state of the art. Cycle time is as much a function of architecture >as of technology - it's not just how fast your transistors switch, >it's also how few of them you can get away with stringing together in >each logic stage. Seymour Cray gets fast cycle times the good old fashioned way, no microde and pipeline everything in sight, including the channel to main memory. Now that Micro makers have finally started picking up on the fundamentally important load/store RISC ideas, they had better start looking at pipelining the functional units of the cpu along with the channel to main memory if they want more speed.
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site lll-crg.ARpA Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!bellcore!decvax!ittatc!dcdwest!sdcsvax!ucbvax!ucdavis!lll-lcc!lll-crg!brooks From: brooks@lll-crg.ARpA (Eugene D. Brooks III) Newsgroups: net.arch Subject: Re: Mips / MHz Message-ID: <1418@lll-crg.ARpA> Date: Thu, 1-May-86 23:53:04 EDT Article-I.D.: lll-crg.1418 Posted: Thu May 1 23:53:04 1986 Date-Received: Sun, 4-May-86 04:27:37 EDT References: <1363@unc.unc.UUCP> <315@garth.UUCP> Reply-To: brooks@lll-crg.UUCP (Eugene D. Brooks III) Distribution: net Organization: Lawrence Livermore Labs, CRG Group Lines: 14