Article View: net.lang.f77
Article #229Re: Wanted: Ultra-fast fortran compiler for UNIX
From: William L. Sebok
Date: Mon, 22 Jul 1985 14:23
Date: Mon, 22 Jul 1985 14:23
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In article <9871@Glacier.ARPA> conor@Glacier.UUCP (Conor Rafferty) writes:
>Actually there is limited room for improvement. The 4.2BSD compiler is
>considerably better than the original f77 in that respect. Published
>work (by Jack Dongarra at Argonne National Laboratory
>[dongarra@anl-mcs]) shows about 25-30% slower runtimes for the 4.2BSD
>compiler over the VMS 4.1 compiler, for dense linear algebra. I've
>also coded some sparse linear algebra (essentially Yalepack) in
>assembly and found only 30-35% speed up. Let's give credit where
>credit is due!
Somehow 25%-35% sounds like a fair amount of room for improvement to me.
However that is better than the factor of two that VMS advocates have been
shoving in my face.
--
Bill Sebok Princeton University, Astrophysics
{allegra,akgua,burl,cbosgd,decvax,ihnp4,noao,princeton,vax135}!astrovax!wls
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 11/03/84 (WLS Mods); site astrovax.UUCP Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!allegra!princeton!astrovax!wls From: wls@astrovax.UUCP (William L. Sebok) Newsgroups: net.lang.f77,net.unix Subject: Re: Wanted: Ultra-fast fortran compiler for UNIX Message-ID: <624@astrovax.UUCP> Date: Mon, 22-Jul-85 10:23:49 EDT Article-I.D.: astrovax.624 Posted: Mon Jul 22 10:23:49 1985 Date-Received: Wed, 24-Jul-85 23:39:11 EDT References: <621@astrovax.UUCP> <9871@Glacier.ARPA> Reply-To: wls@astrovax.UUCP (William L. Sebok) Organization: Princeton Univ. Astrophysics Lines: 17