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(fwd) G77 2.95 performance increase for x86-win32
- To: gcc at gcc dot gnu dot org
- Subject: (fwd) G77 2.95 performance increase for x86-win32
- From: Mumit Khan <khan at xraylith dot wisc dot EDU>
- Date: Wed, 25 Aug 1999 01:49:03 -0500
Good part of the credit goes to the better alignment on x86. Too
bad my own code doesn't get as much of a boost ;-)
------- Forwarded Message
Date: Wed, 25 Aug 1999 10:00:18 +0900
From: "Kan, Masahiro" <kan@hama.toshiba.co.jp>
Subject: GCC-2.95 for Mingw32
Dear Dr. Mumit Khan,
As I wrote before, we are using Mingw32 compiler for
ATP(Alternative Transients Program)-EMTP(Electro Magnetic
Transients Program). This has been good, and this time,
GCC-2.95 for mingw32 which you published made a significant
improvement for this program. I appreciate your work very
much and forward a message of Dr. Scott Meyer of the
Bonneville Power Administration <thliu@bpa.gov> who is the
author of this program.
--------- Forwarded Message
[snip]
.... the third of these documents
improved simulation speed using DC-1:
--------------------------------------------
Data in Phasor pre-dT dT loop Total
--------------------------------------------
Old: 1.091 .351 .370 7.161 9.063
New: .751 .090 .091 6.029 6.980
-----------------------------------------------------
[snip]
If these numbers stand up to repeated, detailed
scrutiny, it would appear that need for Watcom ATP
might finally have vanished. You should be very happy.
This new compiler seems to be very important news. If
you know whom it came from, we encourage you to pass
along our compliments and appreciation.
--------- End of Forwarded Message
-----------------------------------
Masahiro Kan
Toshiba Corporation, Japan
E-MAIL:"Masahiro Kan at Toshiba"<kan@hama.toshiba.co.jp>
"Masahiro Kan at Home"<m_kan@ya2.so-net.or.jp>
WWW(ATP-EMTP-jp) : http://www02.so-net.or.jp/~m_kan/index-e.htm
------- End of Forwarded Message