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Subject: crafty speedup on amd

Author: Sean Mintz

Date: 17:57:01 11/23/03


I did a test of the latest crafty (19.5) using an executable I made with Intel C
5.0 (/Ox /G6 /Gr /Ob2 /Qipo optimizations).  My machine is a dual 1.2 ghz athlon
MP running at 1.35 ghz with 150mhz fsb.

My crafty.rc file has this:

ansi off
mode normal
adaptive 1.4M 6M 192M 1M 48M
smpmt 2
book on
tbpath f:\chess\tablebases\
cache 8M
learn 7
ponder on
swindle on
flag on
log off
exit

---
Crafty v19.5 (2 cpus)

White(1): mt 0
parallel threads disabled.
White(1): bench
Running benchmark. . .
......
Total nodes: 100409437
Raw nodes per second: 772380
Total elapsed time: 130
SMP time-to-ply measurement: 4.923077
White(1): quit
---

---
Crafty v19.5 (2 cpus)

White(1): bench
Running benchmark. . .
......
Total nodes: 98693325
Raw nodes per second: 1542083
Total elapsed time: 64
SMP time-to-ply measurement: 10.000000
White(1): quit
---

1542083 / 772380 = 1.9965 x faster


Sean Mintz



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