完全运行于NVIDIA CUDA的国际象棋引擎

Edison

http://www.gpuchess.com/
需要代理来访问，软件未发布。


相应讨论串：

http://forums.nvidia.com/index.php?showtopic=70214

cutekiller

上不了代理，只能回头再看了。

Edison

我摘录部分内容：

Sunday, April 20, 2008
Alpha beta
Recursion is not possible on the GPU, because the processor on the GeForce 8800 has not stack. Therefore I needed to implement recursion with a state machine and a array which simulates the stackpointer.

Sunday, April 20, 2008
Parallel move generation
One of the advantages of using GPU's multiprocessors. Instead of generation all pseudo legal moves for a given chess position in sequence, I use 64 threads to generate all legal moves parallel!


Sunday, April 20, 2008
Evaluation of a chess position
Evaluation is done with 64 threads to count the value of the pieces

Friday, May 16, 2008
Sorting
Also sorting the moves ( captures first) is now done in parallel

Friday, May 16, 2008
Tiny chess engine running
After performing some tests I have a chess engine running as one block on a multiprocessor, using alpha/beta using killer moves as well

"Hieronymus said...

    Currenty about 500.000 nodes a second. But the number does not mean so much since a lot of nodes are searched for nothing."

"Anonymous said...
    How did you choose to use Nvidia/CUDA rather than ATI/Brook+? Would you be opening to programming instead on an ATI GPU?
    June 18, 2008 11:01 PM

Hieronymus said...
    I started with a prerelease of Cuda, early 2007, there was no alternative at that time. NVIDIA was the first one to make it available. I looked at Brook but I found CUDA more flexible"

Thursday, June 19, 2008
Beated by the GPU in Chess
Okay, I am not that strong player but I got beaten by my chess chess eninge written in CUDA running on a NVIDIA GeForce 8800 GTX.

Edison

这个只是一个初步的玩具性质的东西，未来能发展成怎样不可而知。

500K node/s的性能大致上相当于PD 820的1/3 :p

furtfans

弄个集群去跟blue gene L打一下。。赢了就可以大吹特吹了。。{biggrin:] {biggrin:] {lol:] {lol:]

Prescott

这个还是要看Larrabee的啦，个人预计性能是Q6000的5倍以上。

[ 本帖最后由 Prescott 于 2008-7-3 12:33 编辑 ]

55555555

原帖由 furtfans 于 2008-7-3 10:40 发表
弄个集群去跟blue gene L打一下。。赢了就可以大吹特吹了。。{biggrin:] {biggrin:] {lol:] {lol:]

{sweat:] 者都能打赢，IBM不用混了。{sweat:]

dx1983fdly

原帖由 55555555 于 2008-7-3 12:33 发表

{sweat:] 者都能打赢，IBM不用混了。{sweat:]

现在IBM混roadrunner了.....1Petaflops

内个

:blink: superPI for CUDA 怎么还没出来

smaller

路过看看看，顺便3个俯卧撑！{lol:]

Ericc

Roadrunnder....怀念啊。 APPLE II~~~

tansailuffy

原帖由 smaller 于 2008-7-3 15:23 发表
路过看看看，顺便3个俯卧撑！{lol:]

弱弱的问一下，“做俯卧撑”的来历是什么？

kingofmx200

原帖由 smaller 于 2008-7-3 15:23 发表
路过看看看，顺便3个俯卧撑！{lol:]

再做，NV就要挂了{lol:]

Bocelli

原帖由 tansailuffy 于 2008-7-3 16:47 发表

弱弱的问一下，“做俯卧撑”的来历是什么？

详见音区强帖{lol:] {lol:]

roadrunner

原帖由 Ericc 于 2008-7-3 15:26 发表
Roadrunnder....怀念啊。 APPLE II~~~

咳.......咳................

不好意思, APPLE II的那个是Lode Runner

[俯卧撑中....]