Author: Frank Phillips
Date: 09:57:58 05/10/02
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On May 09, 2002 at 22:24:15, Vincent Diepeveen wrote: >On May 09, 2002 at 10:27:34, Frank Phillips wrote: > >>Intel Linux compiler version 6 is faster (about 5%) than Intel version 5 for me, >>on a K7 1.4GHz (non XP) - Mandrake 8.2 with icc -O3 -ipo -prof_use > >and if you try on windows intel c++ 5.0.1 next: > CFLAGS = -O3 -G6 -Qaxi -Qxi -Gr -Qprof_genx > >then delete object files and try again: > CFLAGS = -O3 -G6 -Qaxi -Qxi -Gr -Qprof_use > >How's its speed then? I do not have the Windows version. > >this should speed you up huge, as you're not using G6 above nor Qaxi nor GR. > >ipo was producing buggy code for me. ipo used to crash in version 5 but seems to work in version 6. > >Is the 6.0 compile producing same output like 5.01? The executable is bigger, about 20% if I recall correctly, so I guess it is not producing the same code. > >>I applaud Intel for releasing their compiler free of charge. Next time chips >>from the two manufacturers are close in price and performance I will chose Intel >>as a consequence. > >Minority viewpoint in this world, nevertheless more common in this forum :) I find it hard to critise Intel for giving me such a good compiler for free. GCC produces almost a 30% slower executable for me....sadly. > >>Frank > >by the way, is your engine using bitboards Frank? Yes: mixture of bitboard and offset array.
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