Author: Matt Taylor
Date: 21:45:24 02/18/03
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On February 18, 2003 at 21:13:21, Robert Hyatt wrote: >On February 18, 2003 at 20:43:13, Sean Mintz wrote: > >>Using the latest MingW32 available (gcc 3.2, for windows) I compiled tscp 1.73. >>A long time ago I had compiled 1.73 using intel c 5 with all optimizations and >>profiling and made the fastest executable for amd processors there was (you can >>even check the tscp benchmark site >>http://home.attbi.com/~tckerrigan/bench.html). >> >>Here's the results: >> >>Compiler MIPS >>Intel C[1] 1452.4 >>GCC[2] 1598.1 >> >>1 - (Profile directed) icl *.c -O2 -Qipo -QxiM -G6 -Qunroll -Qprof_use >>-Qprof_dir c:\profiles > > >You might try this: It is the fastest I have found for Intel and Crafty: > > > CFLAGS='$(CFLAGS) -D_REENTRANT -O2 -march=pentiumiii \ > -mcpu=pentiumpro -prof_gen -prof_dir ./profdir \ > -fno-alias -tpp6' \ > >The above will compile for a pentium 3 box. Pentium4 needs a change. But >I would avoid the unroll options and so forth and let the compiler do what >it wants... <snip> Not when talking specifically about Athlon. AMD recommends lavish unrolling. -Matt
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