Author: Thomas Mayer
Date: 18:21:23 01/09/04
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Hi Matthew, On January 09, 2004 at 19:16:34, Matthew White wrote: >>> is hyperthreading for Xeon processors interesting for computerchess? >>> If yes, I must buy a new OS because Windows 2000 is not compatible to >>> hyperthreading. >>> >>> I cann't believe that with 100% engine CPU power hyperthreading give me more >>> power! For sure for different other software (grafic software and so on) but >>> for computer chess? >> >>as usual: it depends. Of course the engine will get more nps on a Dual when >>hyperthreading is activated and 4 threads (because we have 4 virtual CPUs) are >>useable. And this depends on the engine. To use 4 CPUs with a dual you need the >>server version of Windows 2000. Windows 2000 and Windows XP only support 2 CPUs. > >I'm using XP Professional on a 2x2.4 Xeon with HT enabled, and it shows 4 >virtual CPUs. I believe that XP properly supports HT... oh, that's new to me... anyway, I do not own a Dual Xeon, but have read much about hyperthreading - I thought that the normal XP professional would not show four processors - if it does, fine ! Greets, Thomas
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