Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.ARPA Path: utzoo!watmath!clyde!cbosgd!ucbvax!huey.udel.edu!kathy From: kathy@HUEY.UDEL.EDU (Kathy Minnich) Newsgroups: fa.info-vax Subject: another fortran problem? Message-ID: <8509200421.AA05283@UCB-VAX.ARPA> Date: Thu, 19-Sep-85 20:45:42 EDT Article-I.D.: UCB-VAX.8509200421.AA05283 Posted: Thu Sep 19 20:45:42 1985 Date-Received: Sat, 21-Sep-85 05:31:53 EDT Sender: daemon@ucbvax.ARPA Reply-To: info-vax@ucb-vax.arpa Organization: The ARPA Internet Lines: 14 we're running VMS 4.1 with FORTRAN 4.2. one of my users is complaining about receiving different results from his fortran program when he runs it with the /nooptimize switch. he claims that the program will run slower (about 6 hours instead of 4 hours) and that the results differ. (he is working with random numbers, but says that the difference is very noticable.) if anyone knows in fact that this a bug with the optimization, then please let me know ... my user is now thinking that he's wasted over a month's worth of computer time because of the varying results and doesn't quite know which set to trust. thanks for any comments/information, kathy