Author: Robert Hyatt
Date: 07:11:52 05/08/05
Go up one level in this thread
On May 08, 2005 at 02:40:33, A. Zanchetta wrote: >Hi, > >a few months ago, I ported Crafty (Special Edition) to Pocket PC, but I only >tried to make it run. Now I would be interested in making it run *faster* ... > >I have tried many compilation options and even downloaded the Intel Compiler. >With Microsoft tools (EVC++ 4.0, Visual Studio 2005 Beta 2), the default options >are the best... >And the Intel compiler generates a much slower code. > >How much improvement (%) can I get by writing a few assembly routines (i.e. >those which are written in assembly on the Windows/X86 version) ? > >As of today, here are the results I get with CEBoard+Crafty Classic 2004 on my >Dell Axim X50v: >BT2450 : 2342 (EVC++4.0), 2350 (VS2005 Beta 2) >BT2630 : 2387 (VS2005 Beta 2) > >Thanks, >Alain With luck you might get 10% speed improvement, and that is an upper bound. It will probably be less. On the opteron, for example, it is less than 5% faster with the 64 bit asm code...
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