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How much stronger is the HIARCS 11 MP version?

April 26, 2017hiarcs MP stronger version

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How much stronger is the HIARCS 11 MP version?

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The multiprocessor version of HIARCS 11 UCI when running on multiprocessors (of course!) gains a good speed up factor. The engine seems to scale quite well and on two processors is about a factor of x1.8 times faster and on four processors (the current maximum) it is about x3 times faster than its single processor little brother. In terms of Elo strength improvement I would imagine that on a dual core/processor system it would be roughly about 40-50 Elo stronger and on a 4 processor system 70-90 Elo stronger. If you do any comparisons please let us know the results! The current maximum number of CPUs supported is 4 but we hope to raise this to 8 CPUs once it has been verified.