NNue variety

[stavros]

anyone knowus if the NNue is determistic? like 1 core or adds some variety like multi core?

[zullil]

anyone knowus if the NNue is determistic? like 1 core or adds some variety like multi core?

I see no reason why a single-threaded search using a fixed nn.bin should be non-deterministic. More than one thread should be non-deterministic. All that the nn is doing is replacing the evaluation.

[brianr]

Even single thread can be somewhat variable if search is based on time.
For fixed nodes (assuming nothing the the hash tables), it should be exactly the same.

[stavros]

so the multi thread gives some variery like multi core A/B engines?

[Raphexon]

Yes, it's exactly the same as regular Stockfish. Except for the eval ofcourse.