Author: Andreas Guettinger
Date: 06:03:04 11/06/05
Go up one level in this thread
On November 06, 2005 at 07:48:20, Bryan Hofmann wrote: >On November 06, 2005 at 07:29:56, Gregory Owett wrote: > >>On November 06, 2005 at 07:13:26, Bryan Hofmann wrote: >> >>>On November 05, 2005 at 08:47:34, Gregory Owett wrote: >>> >>>>When Crafty plays vs another engine, in adjustment "ponder=off", it is pondering >>>>and the taskmrg indicates 99% to Crafty and 0% to the other. Even if its >>>>adversary plays, the indicator gives him 50% and 50% to the other engine, >>>>whereas Crafty should have 0%. Does it profit from the time of reflection of >>>>the other engine? If not, why it does not release the processor? >>>> >>>>Gregory >>> >>>If you are using a version prior to 19.16 then you will see this behavior. In >>>version prior to 19.16 Crafty does not release the parallel CPUs, even tho it is >>>not using them (pondering/thinking). >>> >>> >>>Bryan >> >>That explains all. I used the version 19.11 SE. >>It is one of the best, isn't it? Is there a better according to you? >> >>Thanks. >> >>Gregory > > >I just did some checking, version 19.16 and higher will terminate the additional >threads only when the game has ended. It will still hold on to the additional >threads during the game even though it is not think/pondering the move. So the >issue described still exists in all SMP version of Crafty. > > >Bryan I don't see the problem there. Crafty could hold 100 threads and still use 0% of CPU time. It dosen't need to release the threads when the opponent is thinking. regards Andy
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