Author: Vincent Diepeveen
Date: 07:53:07 10/31/02
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On October 30, 2002 at 06:59:21, Terje Vagle wrote: >Hi all, > >The new cpu from intel will have a new function called >hyper-threading. > >This will make the operating system able to recognize the cpu as if it was >2 cpu's. > >Could the programs with smp-support make use of this? > >Regards, > >Terje Vagle No chessprograms cannot make use of that feature at all. It is sad but the truth. Hyperthreading is a cool thing for the future but the P4 processor is a too small processor to allow hyperthreading from getting to work. Apart from that a major problem is that even if we have a great processor which really allows hyperthreading to be effective, that the threads run at unequal speeds. Hyper threading is supposed to work for 2 threads where 1 is a fast thread and the other is some kind of background thread eating little cpu time. In chessprograms having a second search thread which just runs now and then in the background is simply impossible to use.
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