Author: martin fierz
Date: 14:54:12 02/20/03
hi, after reading a post by sean mintz and the discussion that followed about the merits of intel/gcc 3.2 C compilers for the TSCP benchmark, i compared gcc 3.2 against the M$ compilers here with these results: ------------------------------------------- version XP 2400+ P4 1.4GHz ------------------------------------------- "original" 2260 MIPS 1587 VC 6 2373 1579 VC.net 2496 1587 gcc for P4 2420 1480 gcc for AMD 1 2523 1451, then crash gcc for AMD 2 2663 crash ------------------------------------------- i'm not sure how relevant a benchmark based on TSCP is for "real" chess programs, but if this is anything to go on, then gcc 3.2 is looking good, better than the microsoft compiler for the XP. looks like gcc has finally grown up :-) cheers martin version descriptions: "original" is the .exe which comes in the download: http://home.attbi.com/~tckerrigan/bench.html VC6 is what i compiled with speed optimization with MS visual C 6 VC.net is what i compiled with speed optimization with MS visual C .NET gcc for P4 is -O3 -march=pentium4 -mfpmath=sse -mmmx -fomit-frame-pointer -funroll-loops -finline-functions gcc for AMD 1 is -O3 -march=athlon-xp -mfpmath=sse -mmmx -fomit-frame-pointer -funroll-loops -finline-functions gcc for AMD 2 is -O3 -march=athlon-xp -mfpmath=sse -mmmx -fomit-frame-pointer -funroll-loops -finline-functions -fprefetch-loop-arrays
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