Author: Peter Berger
Date: 13:11:28 08/07/04
Go up one level in this thread
First question was if the Crafty bench produced meaningful data.
I decided to test this with crafty.rc's I'd use for a match. With the PIV3.2,
that has 1GB RAM this meant
smpmt=1
hash 384M
hashp 48M
cache 32M
noise 500000
tbpath=C:\tbs
swindle off
computer
egtb
resign 6
exit
On the Athlon 64 3200+ I used half of this value for hash and hashp as it has
only 512 MB RAM.
To also answer Gerd's theory ( although HT was disabled in previous test) I did
another run with smpt=2 on the PIV.
And to Bob: a 64 bit executable would be of limitted use for me - also if you
first had to lose 20% only to recover it with the 64bit compile .. :)
Test was done with the crafty 19.15 SE executable provided by Mike Byrne.
quick.epd (60s)
Athlon 64 PIV3.2(mt=1) PIV3.2(mt=2)
#1 11/- 932314 11/- 1094865 11/-
#2 13/- 1231821 13/- 1446202 13/-
#3 16/+ 1305247 17/+ 1587329 15/+
#4 13/- 822912 13/- 1084778 13/-
#5 13/+ 1004094 12/+ 1221268 12/+
#6 14/+ 961920 14/+ 1127484 14/+
#7 13/+ 1195035 13/+ 1374959 13/+
#8 15/- 1069003 15/- 1244538 15/-
#9 12/+ 806188 13/+ 1045365 11/+
#10 12/- 937916 13/- 1182559 13/-
#11 11/- 962095 11/+ 1222099 11/+
#12 12/- 749055 12/- 964936 12/-
#13 12/+ 1164411 12/+ 1422361 12/+
#14 13/+ 1005028 14/+ 1209125 14/+
#15 13/+ 1158575 13/+ 1380033 13/+
#16 8/+ 629500 7/+ 719015 11/+
#17 12/+ 875415 12/+ 1134823 12/+
#18 13/+ 957280 13/+ 1202340 13/+
#19 14/+ 1174810 14/+ 1348973 14/+
#20 11/+ 744611 11/+ 960048 11/+
#21 10/+ 744877 11/+ 949471 11/+
#22 14/+ 1151032 15/+ 1348936 14/+
#23 12/+ 1094375 12/+ 1341502 12/+
#24 15/+ 1090312 15/+ 1296615 15/+
Avg+Sol 12.58/17 990326 12.75/18 1204568 12.71/18
The format here is depth reached, solved, Nodes/s. The result shows that the PIV
is indeed about 20% faster with this executable.
HT doesn't provide a benefit.
The results with the ECMGCP testsuite confirm both findings:
ECMGCP (10s)
1 s 56/183 59/183 57/183
2 s 75 83 77
5 s 101 107 106
10s 123 126 126
So the benches produce reasonable results, and Bryan Hoffman's explanation looks
like a good guess: maybe Mike's executable just sucks on the Athlon64 ?
Previous bench results with the SE executable (hash 48M, hashp 12M, nothing
else):
Athlon 64 : "Mike's" Crafty 19.15 Total nodes: 58028353 1115929
52 12.307692
PIV 3.2 : "Mike's" Crafty 19.15 Total nodes: 58028353 Raw nodes/s:1349496
Time:43 14.884
Now I added Dann Corbit's executable to the test:
Athlon 64: "Dann's" Crafty 19.15 Total nodes: 63988715 Raw nodes/s:1361462
Time:47 13.617
I actually did some more tests, but I am too tired, so just the conclusions.
Basically Mike's executable is just great for the PIV but bad for the Athlon.
The PIV is a little faster anyway but it is in the region below 10%.
Peter
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