Author: Vincent Diepeveen
Date: 09:00:32 12/19/02
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On December 19, 2002 at 11:43:22, Robert Hyatt wrote: >On December 19, 2002 at 09:43:54, Vincent Diepeveen wrote: > >>On December 19, 2002 at 07:53:32, Frederic Louguet wrote: >> >>>My program Chess Wizard has always run much faster on Athlon than on P4, but >>>maybe using default optimizations is not enough. So I have a question for >>>compiler gurus : what are the best compiler optimizations you can use under >>>Microsoft Visual C++ 6.0 with processor pack, running under Windows XP, for >>>Athlon XP/MP and for Pentium 4. >>> >>>Before I try everything myself, maybe someone has made experiments and has >>>interesting results to share ? >> >>Yes. >> >>Try mingw with msys. >>it works under windows. >> >>download the latest gcc compiler. >>then compile a version with profile info. produce profile >>info. then recompile with that and branches get optimized. >> >>should get your chess wizard, assuming it's a non-bitboard (gcc >>is horrible optimizing 64 bits code for 32 bits processors), a lot >>faster. >> >>It sure works for diep very fast. > > >Also he should try the Intel C/C++ compiler v 7.0 download from Intel's >web site. It produces faster code for me than any version of gcc that is >available. you have a P4. he has an AMD K7. I bet even old visual c++ 6.0 sp4 procpack beats the intel 7.0 on that hardware ;)
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