> > > Yes. I use Sylvain's fpu and decrease it a little before starting a > simulation, say, fpu *= 0.99. This is very simple and fast.
Ok. Perhaps I'm wrong (I might misunderstand your solution and I might be wrong whenever I've understood :-) ); but - I think that this does not avoid redundancies in the tree, if I understand well. - also, even in a final node in a tree, it does not avoid redundancies for moves which have already been simulated. - finally, in a final node in a tree and for moves which have not yet been simulated, it only avoid redundancies if 0.99 is sufficiently small. Avoiding redundancies is very important in SMP parallelization. The limited speed-up of MPI parallelization in 9x9 is also probably due to redundancies, but for that we have no good solution - whereas in 19x19 (or even 13x13), the speed-up of the MPI parallelization is great (both in our results and other published papers), in 9x9 it is limited. Best regards, Olivier
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