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Path: utzoo!watmath!clyde!bonnie!akgua!sdcsvax!dcdwest!ittvax!decvax!genrad!wjh12!talcott!harvard!seismo!brl-tgr!tgr!T S Lande 
From: T S Lande 
Newsgroups: net.unix-wizards
Subject: f77 performance
Message-ID: <6214@brl-tgr.ARPA>
Date: Fri, 30-Nov-84 03:32:38 EST
Article-I.D.: brl-tgr.6214
Posted: Fri Nov 30 03:32:38 1984
Date-Received: Sun, 2-Dec-84 05:48:57 EST
Sender: news@brl-tgr.ARPA
Organization: Ballistic Research Lab
Lines: 13


	 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 have heard that the f77-compiler is not too good. Is this
	 the main reason or is UNIX giving less troughput than VMS?
	 What about C? Would C-coded programs increase performance
	 significantly?
	 
	 Bassen