Author: James Robertson
Date: 11:47:20 05/03/99
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On May 03, 1999 at 14:40:18, Ian Kennedy wrote: >On May 03, 1999 at 12:58:39, James Robertson wrote: > >>On May 03, 1999 at 03:09:32, Jouni Uski wrote: >> >>>I have compared Crafty 16.6 and Fritz5.32 in P90 and Celeron 300 PCs. Here is >>>average NPS: >>> >>> P90 Cel 300 speed-up >>> Fritz 5.32 88 kn/s 288 kn/s 3.3 x >>> Crafty 16.6 20 kn/s 175 kn/s 8.8 x !! >> >>I think it is due to the bitboards. The newer chips have much better machine >>operations (bsf, bsr) to do 64-bit math, so Crafty will have a much better time >>on the newer machine. >> >>James > >Not quite sure what you're saying here since bsr and bsf have been around since >the 386, do you mean they have been improved in some way? > >Ian Kennedy I think bsf/bsr are faster on a PII/PPro than on a plain Pentium. James
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