Author: Robert Hyatt
Date: 09:21:33 12/10/02
Go up one level in this thread
On December 10, 2002 at 11:34:45, Jeremiah Penery wrote: >On December 10, 2002 at 10:57:40, Robert Hyatt wrote: > >>On December 10, 2002 at 09:08:10, Vincent Diepeveen wrote: >> >>>Matt i don't know it for crafty or other crap products. Crafty as we >>>see in test needs less nodes when running MT=2, >> >>I realize this is hard for you to do, but is it _possible_ that you can stick >>to _real_ data when you post? The above is _absolute_ crap. Crafty does >>_not_ "need less nodes when MT=2". In some positions, yes, but in >>more positions it needs _more_. And for the average case it needs _more_. >> >>I don't know why you continue to post something that any person here can >>refute simply by running the code. I've done it for you many times. The >>above is false. Please find something _else_ to wave your hands about. > >It came from the original data in this thread: So? That is over 6 positions. Using that to prove that a program searches "fewer nodes with mt=2" is total nonsense, as is the claim that a program +will+ search fewer nodes overall using two threads. It simply doesn't happen. And it falls in the same class as the perpetual-motion machine... It doesn't work... > >Crafty v18.15 >White(1): bench >Running benchmark. . . >...... >Total nodes: 97487547 >Raw nodes per second: 1160566 >Total elapsed time: 84 >SMP time-to-ply measurement: 7.619048 >White(1): >------------------------------------- >Crafty v18.15 (2 cpus) >White(1): bench >Running benchmark. . . >...... >Total nodes: 94658095 >Raw nodes per second: 1314695 >Total elapsed time: 72 >SMP time-to-ply measurement: 8.888889 > > >>What is "a buggy crafty?" And what is the 13-16%? I posted _real_ data. You >>post fantasy without even having access to a box? And that is fact??? > >You can see also that the NPS speedup in that above data is 13%. For _one_ test... With a version of the program that has a _known_ problem with SMT.
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