Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site uwstat.UUCP Path: utzoo!watmath!clyde!bonnie!akgua!mcnc!philabs!cmcl2!seismo!uwvax!uwstat!mikem From: mikem@uwstat.UUCP Newsgroups: net.unix-wizards Subject: Re: f77 performance Message-ID: <206@uwstat.UUCP> Date: Fri, 30-Nov-84 09:45:42 EST Article-I.D.: uwstat.206 Posted: Fri Nov 30 09:45:42 1984 Date-Received: Tue, 4-Dec-84 06:04:13 EST References: <6214@brl-tgr.ARPA> Organization: U of Wisconsin Statistics Lines: 20 > > A user on our VAX-11/780 are running performance-tests on > different machines. The program is aprox. 7000 lines of > FORTRAN. The performance on the 780 is only 0.75 of a 750 > running VMS. The comparison was done between computer-bound > parts of the program. When it comes to I/O it's even worse. I don't know about the i-o, but compute times could easily be like this if one machine had a Floating Point Unit and the other did not. My limited timings indicate that with FPA units, a 750 and 780 are about equivalent on floating point intensive code. -- Mike Meyer -- Phone (608) 262-1157 EASY ARPA: mikem@statistics CORRECT ARPA: mikem@wisc-stat.arpa UUCP ...!{allegra,ihnp4,seismo,ucbvax, pyr_chi,heurikon,uwm-evax}!uwvax!uwstat!mikem