Crafty 22.0 Windows x64 available

[Jim Ablett]

Crafty 22.0 by Prof. Robert Hyatt

Windows x64 Intel Compiler 10 p.g.o

http://www.zshare.net/download/7911616f3c0999/

There may be a problem with SMP functionality,
although it was utililizing 2 threads ok on my Core2Duo.
Also it isn't as highly optimized as I would like. Trying
to squeeze extra speed made the exe unstable. It's
still faster than my 32-bit exe though.

Jim.

[Werner]

Thanks Jim,
I have 2 questions:
a) does it work for you with that rc file? Why 2 lines with egtb?

b) do you remember the line which stops using 1 CPU during the other engine is running?

egtb
tbpath=d:\progra~1\arena\nalimov
# adaptive 750K 24M 192M 24M 48M
egtb
tbpath=d:\progra~1\arena\nalimov
cache=32M
ponder off
mode=tournament
swindle on # (Allows Crafty to try to win drawn games (according to Endgame Tables))
learn 7
book random 1
bookw freq 0.7
bookw ratio 0.8
bookw eval 0.6
bookw learn 1
bookw cap 0.5
book width 4
book on
show book
computer
log=off
mt=2 #(Increases Crafty's MaxThreads to 2 for a dual CPU computer - disables smp)
# smpmt=2 #(Increases Crafty's MaxThreads to 2 for a dual CPU computer - using smp dual-core/2+ cpus)
timebook 80 8
#adaptive NPS a
hash=45M
hashp=16M
exit

[Dr.Wael Deeb]

Thanks Jim,
I have 2 questions:
a) does it work for you with that rc file? Why 2 lines with egtb?

b) do you remember the line which stops using 1 CPU during the other engine is running?

egtb
tbpath=d:\progra~1\arena\nalimov
# adaptive 750K 24M 192M 24M 48M
egtb
tbpath=d:\progra~1\arena\nalimov
cache=32M
ponder off
mode=tournament
swindle on # (Allows Crafty to try to win drawn games (according to Endgame Tables))
learn 7
book random 1
bookw freq 0.7
bookw ratio 0.8
bookw eval 0.6
bookw learn 1
bookw cap 0.5
book width 4
book on
show book
computer
log=off
mt=2 #(Increases Crafty's MaxThreads to 2 for a dual CPU computer - disables smp)
# smpmt=2 #(Increases Crafty's MaxThreads to 2 for a dual CPU computer - using smp dual-core/2+ cpus)
timebook 80 8
#adaptive NPS a
hash=45M
hashp=16M
exit

smpnice=1

[Jim Ablett]

Hi Werner,

I have 2 questions:
a) does it work for you with that rc file? Why 2 lines with egtb?

I don't know why the second one is there

b) do you remember the line which stops using 1 CPU during the other engine is running?

Wael has kindly answered that one. I didn't know.

smpnice=1

smpmt=2

is the one which may not work at all.

regards,
Jim.

[Tony Thomas]

If I had to take a guess about the egtb, crafty now has a smarter egtb usage option. Crafty will decide the amount of Ram it needs depending on the position. Crafty still supports the old way of using egtb's as well. So all in all there are two options.

[Uri]

Is Crafty 22.0 only for winboard? Will it work on Windows 2000 professional?

[Jim Ablett]

Hi Uri,

Is Crafty 22.0 only for winboard? Will it work on Windows 2000 professional?

Crafty is a winboard engine. Use with an adaptor (wb2uci), if
you want ro run it in UCI interface.

Crafty can run on pretty much every OS, with the right compile of course.
My 32-bit build should run no problem.

Jim.

[Werner]

Hi Jim,
I tried to run it with 2 CPUs under arena and started a eng-eng match.
Crafty startes running on 2 CPUs a few seconds and then crashes before first move after book is made. This test was made on my AMD 64x2.
Here is the rc file I use:
egtb
hash=512M
hashp=32M
log=off
tbpath=j:\tbs
cache=16M
mode=tournament
swindle off # (Allows Crafty to try to win drawn games (according to Endgame Tables))
mt=2 #(Increases Crafty's MaxThreads to 2 for a dual CPU computer)
timebook 80 8
#adaptive NPS a
smpnice=1

edit:
just using it without smpnice=1
match is running - crafty uses 1 CPU when other engine is running

[Jim Ablett]

Hi Jim,
I tried to run it with 2 CPUs under arena and started a eng-eng match.
Crafty startes running on 2 CPUs a few seconds and then crashes before first move after book is made. This test was made on my AMD 64x2.
Here is the rc file I use:
egtb
hash=512M
hashp=32M
log=off
tbpath=j:\tbs
cache=16M
mode=tournament
swindle off # (Allows Crafty to try to win drawn games (according to Endgame Tables))
mt=2 #(Increases Crafty's MaxThreads to 2 for a dual CPU computer)
timebook 80 8
#adaptive NPS a
smpnice=1

edit:
just using it without smpnice=1
match is running - crafty uses 1 CPU when other engine is running

Hi Werner,

Yes, there is a problem with SMP in x64.

I just tested the 32 bit again in smp mode (2 core) and it's
seems to be working ok.

Jim.

[Werner]

Hi Jim,
no!
The 32bit engine crashes too when using smpnice=1