Path: utzoo!mnetor!uunet!steinmetz!davidsen From: davidsen@steinmetz.steinmetz.UUCP (William E. Davidsen Jr) Newsgroups: comp.unix.wizards Subject: Re: Scientific computing under Unix Message-ID: <9964@steinmetz.steinmetz.UUCP> Date: 16 Mar 88 16:16:21 GMT References: <5972@nswitgould.OZ> <43200014@uicsrd.csrd.uiuc.edu> <1187@valhalla.ee.rochester.edu> Reply-To: davidsen@crdos1.UUCP (bill davidsen) Organization: General Electric CRD, Schenectady, NY Lines: 21 In article <1187@valhalla.ee.rochester.edu> deke@ee.rochester.edu (Deke Kassabian) writes: | | In article <43200014@uicsrd.csrd.uiuc.edu> kai@uicsrd.csrd.uiuc.edu writes: | >F77 is slow, slow, slow. If you want fast, fast, fast fortran for scientific | >computing, use Alliant's FX/FORTRAN. We're talking FAST! Very VAX/VMS Fortran | >compatible. Bucks per megaflop, can't be beat. [ I think Encore and Convex would argue that point ] | | Well if your code lends itself to vectorization and concurrency, this is true. | But Alliant FX/FORTRAN requires an Alliant FX computer...not for everyone. One of the points against multi-processor computers vs uni-processor, given that both have the same total power, is that some programs just don't allow more than one processor to be used. In those cases the uni-processor, with a faster processor, will run much faster, assuming that there is CPU available. This applies only to machines where there is available CPU. -- bill davidsen (wedu@ge-crd.arpa) {uunet | philabs | seismo}!steinmetz!crdos1!davidsen "Stupidity, like virtue, is its own reward" -me