Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site umcp-cs.UUCP Path: utzoo!linus!decvax!genrad!panda!talcott!harvard!seismo!umcp-cs!chris From: chris@umcp-cs.UUCP (Chris Torek) Newsgroups: net.lang.f77 Subject: Re: Fast, reliable FORTRAN compilers for UNIX Message-ID: <1101@umcp-cs.UUCP> Date: Mon, 5-Aug-85 00:20:18 EDT Article-I.D.: umcp-cs.1101 Posted: Mon Aug 5 00:20:18 1985 Date-Received: Wed, 7-Aug-85 01:46:59 EDT References: <174@mdivax1.UUCP> Organization: U of Maryland, Computer Science Dept., College Park, MD Lines: 16 >It is my understanding that one of the main problems contributing >to poor execution times is the nature of the floating point library >-- ie: all floating point is double precision. I'm not sure about the "all floating point is double precision" part (not having worked on any of that myself), but slow library routines are indeed one of the reasons for slow execution of Fortran routines on 4.2BSD Vaxen. There is a "native" math library available (-lnm) which you can use if you dare (it is at least somewhat more buggy than the conventional Fortran math library, I believe). 4.3BSD has a revised native math library for Vaxen, I hear. -- In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 4251) UUCP: seismo!umcp-cs!chris CSNet: chris@umcp-cs ARPA: chris@maryland