422
edits
Changes
Zeta
,→Details
=Details=
Zeta is written in [[C]] (host) and [[OpenCL]] (device). The host handles the IO, but all chess related computations are done in via OpenCL on the device.
Zeta v099 is a port of [[Zeta Dva]] to OpenCL, with classic parallel [[Alpha-Beta]] search, therefore 64 gpu threads are coupled to one worker, used during move generation, move picking and evaluation in parallel.
Zeta v097 and v098 were designed to run thousands of independent [[Thread|threads]] on a [[GPU]], therefore they store the expanded search game tree via an randomized parallel [[Best-FirstMinimax Search]]-MiniMax search in [[Memory|memory]] . =NPS and Playing Strength= * Zeta 099k, AMD Radeon R9 Fury X, 256 workers, ~8 Mnps* Zeta 099k, Nvidia GeForce GTX 750, 16 workers, ~800 Knps, CCRL Elo est. 1932* Zeta 099k, Nvidia GeForce GTX 750, 1 worker, ~45 Knps, CCRL Elo est. 1738* Zeta 098c, Nvidia GeForce GTX 480, 4096 threads, ~5 Mnps, CCRL Elo est. 2000* Zeta 097x, Nvidia GeForce GTX 480, 4096 threads, ~5 Mnps, CCRL Elo est. 1800
=See also=
=Forum Posts=
==2010 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=33315 Zeta, a chess engine in OpenCL] by [[Srdja Matovic]], [[CCC]], March 17, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=39459 Zeta plays chess on a gpu] by [[Srdja Matovic]], [[CCC]], June 23, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=63719 Zeta v099a, gpu chess update] by [[Srdja Matovic]], [[CCC]], April 11, 2017
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=71084 Looking for someone to test Zeta v099l on RTX 2080 TI, or similar, gpu] by [[Srdja Matovic]], [[CCC]], June 24, 2019
==2020 ...==
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=76986 Zeta with NNUE on GPU?] by [[Srdja Matovic]], [[CCC]], March 31, 2021 » [[NNUE]], [[GPU]]
=External Links=
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