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Compiler help
- To: egcs-bugs at egcs dot cygnus dot com
- Subject: Compiler help
- From: Francis J Weber <fjw at WPI dot EDU>
- Date: Thu, 17 Jun 1999 11:23:16 -0400 (EDT)
I am attempting to run a C++ program using a great deal of floating point
calcs. I have in the past run it on an NT OS using a MS compiler, in this
mode the program required 50sec a "step" with several thousand steps.
Using egcs (i think - when I type gcc -v what should i get) to compile my
program takes more than 2 minutes a step. I am looking for options to
optimize the compile to get as fast a program as possible. I have used:
-O3 -mcpu=i686 -march=i686 -malign-double
I have an intel dual PII450 machine with 190meg of memory running Linux.
If you have any ideas I would appreiciate it
Thank you
Frank Weber