Author: Eelco de Groot
Date: 18:52:53 08/24/05
Go up one level in this thread
On August 24, 2005 at 14:50:46, Thomas Logan wrote: >On August 24, 2005 at 12:05:09, Vincent Diepeveen wrote: > >>On August 24, 2005 at 08:59:28, Thomas Logan wrote: >> >>>On August 24, 2005 at 08:47:33, Vincent Diepeveen wrote: >>> >>>>On August 24, 2005 at 08:20:25, Thomas Logan wrote: >>>> >>>>>Does anyone have scaling figures for various deep programs >>>>> >>>>>and systems with 2 dual core processors >>>>> >>>>>Tom >>>> >>>>hi, i just started a test at my k7 single cpu machine >>>>to compare an output created at a quad dual core 1.8Ghz. >>>> >>>>The test is over 213 positiosn and statistical significant. >>>> >>>>I expect results within 2 weeks. >>>> >>>>You can calculate what time it takes 70 minutes * 213 positions. >>>> >>>>one thing already seems sure: >>>> >>>>x86-64 has no scaling problems with big hashtables, x86 has. >>>> >>>>Vincent >>> >>>Hello Vincent >>> >>>Thank you >>> >>>Are you using Diep ? >>> >>>Any knowledge concerning Fritz, Junior or Shredder >>>Please post your results when obtained >> >>Shredder is scaling 3.3 at quad single core, so that'll be like scaling of 4 at >>dual core quad or so? >> >>junior was single core and fritz will not be scaling well either (deepfritz8). >> >>We know all this already from 8 cpu Xeon machines in fact. See results donninger >>posted once. >> >>If you don't run well at 8 cpu xeon then forget dual core. >> >So you believe Shreder scale fairly well on a quad > >But regarding Junior and Fritz I of course meant the deep versions of Junior and >Fritz > >Any knowledge on these ? > >Thanks > >Tom Hello Thomas, I think what Vincent meant was that Junior played on a single core 4 processor machine on the WCCC. Deep Junior, or it could not have used more than one processor, but actually I have not read anywhere what kind of processor Amir and Shay used, AMD or Intel? If I understand correctly, scaling involves the NPS numbers,which is not the same as plydepths/timeunit, the actual speed-up? Kevin Burcham posted some interesting numbers for Deep Fritz above http://www.talkchess.com/forums/1/message.html?444985 If you convert that back to nodes per core per MHz that would roughly get the Fritz scaling numbers. Groeten, Eelco
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