Author: Robert Hyatt
Date: 18:54:10 07/07/02
Go up one level in this thread
On July 07, 2002 at 10:47:32, Terry McCracken wrote: >On July 07, 2002 at 03:14:41, Slater Wold wrote: > >>On July 07, 2002 at 03:08:32, Terry McCracken wrote: >> >>>On July 07, 2002 at 02:49:49, Slater Wold wrote: >>> >>>>On July 07, 2002 at 02:46:08, Terry McCracken wrote: >>>> >>>>>On July 07, 2002 at 02:13:33, Slater Wold wrote: >>>>> >>>>>>How many nps does Diep get on 60 CPUs? >>>>>> >>>>>>I imagine it's not exactly "fine tuned", seeing as how testing time was short. >>>>>>Any thoughts about this? >>>>>> >>>>>>Grats on the first round win! >>>>>> >>>>>> >>>>>>Slate >>>>> >>>>>Hi Slate. I thought Diep was running on a supercomputer capable of 1 Teraflop, >>>>>running on 1024 processors? >>>>> >>>>>http://www.chessbase.com/events/events.asp?pid=141 >>>>> >>>>>http://www.sara.nl/hpc.www/teras/description/ >>>>> >>>>>Terry >>>> >>>>They only allowed him to use 60 CPUs. Time on this machine is $30 an hour per >>>>processor. >>>> >>>>For 60 CPUs it would be $1800 an hour. >>>> >>>>For 1024 CPUs it would be $30,720 an hour. >>>> >>>>I took this all from Chessbase's website. Sorry, I don't have the link handy. >>> >>>Ah...I see, thanks! It would kick serious ass on 1024 cpus!:o) >>> >>>Terry >> >>Oh, and you think it won't on 60 CPUs?! > >I didn't say that. Of course it would be strong. Let's say it would have been >interesting if he had use of all that processing power. > >Terry The problem is that almost _everyone_ is making gross assumptions about how easy it is to use 1024 processors. Or even 64. Take it from someone that has been doing this for _years_. It is not easy. Throw in NUMA and it becomes even harder... This is what used to really gripe me about comments made about Cray Blitz. "oh, you just had hardware faster than everybody else's..." Which was true, of course. But _using_ that hardware took years of effort to get things reasonably optimized...
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.