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Mail Archives: pgcc/1999/04/15/07:07:31

Message-Id: <m10XfpX-0000GTC@chkw386.ch.pwr.wroc.pl>
Date: Thu, 15 Apr 99 06:40
From: strasbur AT chkw386 DOT ch DOT pwr DOT wroc DOT pl (Krzysztof Strasburger)
To: pgcc AT delorie DOT com
Subject: Re: performance question
Reply-To: pgcc AT delorie DOT com

>> I am involved with numerical weather modeling and we sometimes use
>> Pentium class computers running Linux.  Does the PGCC compiler patch
>> also provide speed improvements for g77?  Is this something that I
>> should try?  When you have a model that may runs for 7 days a 5-10%
>> speed-up IS significant.

>There have been a number of problems reported in the 1.1.2 release - 
>you might want to try 1.1.1 or the latest development sources (avalible 
>in CVS).
No, don't use 1.1.1 with fpu intensive programs. The very important
fast-math option was broken. This bug seems to be fixed in 1.1.2.
Krzysztof

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