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Subject: Crafty MPC ( Is it Hyper Threading?)

Author: Nolan Denson

Date: 08:26:37 09/13/03


Hey Dan

I decided to compile and give your crafty MPC a try.  I am getting very good
results but have notice something strange.  I am not sure if this version is
suppose to be able to take advantage of hyper threading ... but when i run the
bench test my nps are better for a dual processor instead of a quad, But a
strange things happens when actual game play starts.  Using it as a Dual Xeon my
nps (I compiled for multi-thread) 1536 nps avg, as a Quad the bench test is 1200
nps.  But when actual game play starts the Dual stays about the same. But the
Quad via Hyperthreading gets like 2100 nps ... Do you think is doing this on its
own, or is this MPC Crafty Hyperthreading enable.  If an one know the files that
are involve ... i can make this MPC version truly Hyperthreading ...base on the
results I am getting now .. if this is not Hyperthreading now ... i think once
it is i should get around 2500-2600 nps.



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