Author: Tony Werten
Date: 23:53:20 03/27/00
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On March 27, 2000 at 12:26:02, Gordon Rattray wrote: >How much benefit can one expect by supplying more RAM for hash tables? I'd >guess that moving from, say, 32Mb to 128Mb would be a significant improvement >(assuming the time controls allow the table to be filled). However, how much >benefit can be expected by moving from 256Mb to 512Mb? Hard to say. You will get a benefit, but it'll be smaller than what you get from moving from 128 to 256. Furthermore, fast searchers tend to benefit more from bigger memories than slow searchers ( or actually: suffer more from small memory ) >Should it be Athlon or PIII? For the PIII, I'd be planning on a 800Mhz with >either 384Mb RDRAM (i820 chipset) or 786Mb SDRAM (440BX chipset). I've been >told that RDRAM may not make any difference for a chess program. But many of >the hardware reviews show better performance for the RDRAM/i820 setup (maybe >not applicable to a chess program?!). RDRAM has worse performance for random access and unfortunately that exactly what you do in a hashtable. Tony
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