Author: Slater Wold
Date: 13:20:48 02/15/04
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On February 15, 2004 at 16:10:55, Dann Corbit wrote: >On February 15, 2004 at 15:45:02, Slater Wold wrote: > >>My setup: >> >>AMD FX 51 >>Windows 2003 Enterprise (64 bit) >>Intel 8.0 Compiler >> >> >>Why would compiling Crafty 19.10 be 15% slower when defining /DVC_INLINE_ASM & >>/DUSE_ASSEMBLY? >> >>Has anyone else ever seen that? > >It may mean that the compiler generated better assembly than you did. > >It may also mean that you pulled in the wrong assembly. Old x86 assembly will >run on the AMD opteron type systems. It is the new stuff that will really be >snappy. ICC doesn't seem to like Bob's assembly code to start off with. vcinline.h(28): warning #1011: missing return statement at end of non-void funct ion "PopCnt" } ^ vcinline.h(41): warning #1011: missing return statement at end of non-void funct ion "FirstOne" } ^ vcinline.h(54): warning #1011: missing return statement at end of non-void funct ion "LastOne" } ^ Here is the result using /DVC_INLINE_ASM & /DUSE_ASSEMBLY: Total nodes: 89942714 Raw nodes per second: 1577942 Total elapsed time: 57 SMP time-to-ply measurement: 11.228070 Here is the result without it: Total nodes: 89942714 Raw nodes per second: 1635322 Total elapsed time: 55 SMP time-to-ply measurement: 11.636364 Doing a few other things, I've got it from 15% to 3%. But still slower.
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