Ethereal 10.88 NUMA

[Dokterchen]

NPS goes up but depth goes down!?

So, there are a couple things at play here ....

1) This is a sample of exactly one 10 second search each
2) The threads are running slower here, but faster as a collective.
3) In general, for LazySMP engines, more cores does not increase depth as much, it more often increases the quality of the depth. This is due to things like less aggressive pruning when you have a TT move, extending TT moves, overall better move ordering, ...

An excellent explanation! Thanks Andrew.