How much stronger is the HIARCS 13 MP version?
The multiprocessor version of HIARCS 13 UCI when running on multi-core/processors (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 it is about 3 times faster than its single processor little brother. On 8 core machines we have seen a speed up of about a factor of 6. In terms of Elo strength improvement I would imagine that on a dual core/processor system it would be roughly about 50 Elo stronger and on a 4 processor system 90 Elo stronger. While a 8 core system would increase the strength by about 130 Elo. If you do any comparisons please let us know the results! The current maximum number of CPUs supported is 16 but we hope to raise this in the future once higher CPU support has been verified.
