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AlphaZero Chess test - SF8 16 GB vs. 512 MB
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Adam Hair



Joined: 06 May 2009
Posts: 3163
Location: Fuquay-Varina, North Carolina

PostPost subject: Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB    Posted: Sat Jan 13, 2018 10:15 am Reply to topic Reply with quote

syzygy wrote:
Adam Hair wrote:
Jouni wrote:
I did some single core test 1 MB vs. 64 MB. HERT500.PGN book. With fixed time=1 sec 1 MB was better than bigger? With 60s + 0,6s it changed totally:
Code:

                   
1   SF 64MB   +42  +33/=158/-9 56.00%  112.0/200
2   SF 1MB    -42  +9/=158/-33 44.00%   88.0/200



Obviously fixed time per move DESTROYS SF SEARCH BADLY!


How does fixed time destroy SF's search? Does the search operate in a different manner based on the time control?

It does not destroy SF's search at all.

The "bad" thing that can happen is that SF realises that its move from iteration N isn't as good as it had hoped at iteration N+1 and time runs out before it can finish iteration N+1. But if this happens, SF will still play a move that - at iteration N+1 - is at least as good as the best move from iteration N (either it won't switch or it will switch to a better move, just possibly not the move that is best at iteration N+1 because it didn't have the time to figure out what that best move is).


Thanks! This how I thought it worked.
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Subject Author Date/Time
AlphaZero Chess test - SF8 16 GB vs. 512 MB Andreas Strangmüller Sun Jan 07, 2018 12:19 pm
      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Ray Banks Sun Jan 07, 2018 1:08 pm
      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Marco Belli Sun Jan 07, 2018 1:29 pm
      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Ronald de Man Sun Jan 07, 2018 1:51 pm
            Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Juan Molina Mon Jan 08, 2018 6:55 am
                  Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Jouni Uski Mon Jan 08, 2018 1:13 pm
                  Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Carlos Canavessi Mon Jan 08, 2018 3:18 pm
                        Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Juan Molina Mon Jan 08, 2018 3:44 pm
                              Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Carlos Canavessi Mon Jan 08, 2018 4:48 pm
                                    Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Juan Molina Mon Jan 08, 2018 6:49 pm
                                          Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Dann Corbit Mon Jan 08, 2018 9:52 pm
                                                Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Robin Messemer Mon Jan 08, 2018 10:11 pm
                                                Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Juan Molina Tue Jan 09, 2018 2:00 pm
                                                      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Jouni Uski Tue Jan 09, 2018 2:57 pm
                                                            Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Adam Hair Tue Jan 09, 2018 11:53 pm
                                                                  Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Milos Stanisavljevic Wed Jan 10, 2018 12:30 am
                                                                        Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Adam Hair Sat Jan 13, 2018 10:13 am
                                                                  Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Ronald de Man Fri Jan 12, 2018 8:52 pm
                                                                        Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Ulysses P. Fri Jan 12, 2018 10:27 pm
                                                                        Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Adam Hair Sat Jan 13, 2018 10:15 am
                                                            Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Adam Hair Sat Jan 13, 2018 9:52 am
                                                Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Vincent Lejeune Tue Jan 09, 2018 4:04 pm
                                                      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Robin Messemer Tue Jan 09, 2018 4:12 pm
                                                            Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Milos Stanisavljevic Tue Jan 09, 2018 8:19 pm
                                                      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Robin Messemer Tue Jan 09, 2018 4:13 pm
                                                      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Robin Messemer Tue Jan 09, 2018 4:15 pm
                                                      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Robin Messemer Tue Jan 09, 2018 4:16 pm
                                                      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Robin Messemer Tue Jan 09, 2018 4:17 pm
                                                      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Robin Messemer Tue Jan 09, 2018 4:17 pm
                                                      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Vincent Lejeune Tue Jan 09, 2018 4:20 pm
                                                      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Vincent Lejeune Tue Jan 09, 2018 4:24 pm
      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Milos Stanisavljevic Mon Jan 08, 2018 7:41 pm
            Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Andreas Strangmüller Mon Jan 08, 2018 9:10 pm
                  Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Milos Stanisavljevic Mon Jan 08, 2018 10:43 pm
      Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Vincent Lejeune Mon Jan 08, 2018 7:45 pm
            Re: AlphaZero Chess test - SF8 16 GB vs. 512 MB Ulysses P. Mon Jan 08, 2018 8:07 pm
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