On 2015-01-14 7:52 AM, Louis Zulli wrote: > Saw this recently in the chess program Stockfish. Worth a look? Better > randomness than MT: > > "This patch replaces RKISS by a simpler and faster PRNG, xorshift64* proposed > by S. Vigna (2014). It is extremely simple, has a large enough period for > Stockfish's needs (2^64), requires no warming-up (allowing such code to be > removed), and offers slightly better randomness than MT19937." > > Paper: > http://xorshift.di.unimi.it/ >
Thanks for the information. I am pretty sure I saw Philippe Michel at one point mention information regarding his findings with profiling. My understanding that the random number generation (with MT) is much of a bottleneck within the context of rollouts. "slightly better" randomness, but from the end user perspective within the context of backgammon it likely wouldn't be noticeable (if at all) even over a lot of matches. I'm in agreement with Ian Shaw that a decrease in the options of random number generators is probably more ideal. If others wish to weigh in on this I am more than happy to listen. Thanks, -- Michael Petch GNU Backgammon Maintainer / Developer OpenPGP FingerPrint=D81C 6A0D 987E 7DA5 3219 6715 466A 2ACE 5CAE 3304 _______________________________________________ Bug-gnubg mailing list [email protected] https://lists.gnu.org/mailman/listinfo/bug-gnubg
