Article View: comp.sys.sequent
Article #114Re: What? I'm confused. Sequent their strengths & weaknesses
From: Rich Kulawiec
Date: Fri, 08 Sep 1989 22:46
Date: Fri, 08 Sep 1989 22:46
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1455 bytes
In article <5053@eos.UUCP> eugene@eos.UUCP (Eugene Miya) writes: >In article <17580@bellcore.bellcore.com> johno@dduck.UUCP (John OBrien) writes: >>The sequent architecture does automatic multiprocessing >across the available processors. >>The "Parallel Processing" is not done automatically! > >Oh? What's the difference? [*if you think this terminology is bad, >I can refer you to other vendors with bad terminology...*] Here's the deal: If you and I each launch a dozen processes or so on a ten processor machine, the kernel scheduler worries about which to run where, and silently handles getting our 24 jobs done on 10 processors. However, if I want to run a DSP application in parallel on 4 processors, then I have to embed the appropriate parallel directives in my code at compile-time, ie. the compilers won't generate parallel code for me. ---Rsk
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!boulder!rsk From: rsk@boulder.Colorado.EDU (Rich Kulawiec) Newsgroups: comp.sys.sequent Subject: Re: What? I'm confused. Sequent their strengths & weaknesses Message-ID: <11500@boulder.Colorado.EDU> Date: 8 Sep 89 22:46:24 GMT References: <1263@syma.sussex.ac.uk> <1309@syma.sussex.ac.uk> <218@runxtsa.runx.oz> <17580@bellcore.bellcore.com> <5053@eos.UUCP> Sender: news@boulder.Colorado.EDU Reply-To: rsk@boulder.Colorado.EDU (Rich Kulawiec) Organization: University of Colorado at Boulder Lines: 20