Author: Kurt Tank
Date: 05:45:37 02/14/04
Go up one level in this thread
On February 13, 2004 at 06:57:56, Vincent Diepeveen wrote: >On February 13, 2004 at 05:08:27, Peter Berger wrote: > >>On February 13, 2004 at 00:39:38, robert flesher wrote: >> >>>Nt >> >>Did he? >> >>Maybe this is a misunderstanding. You asked if the program will run using >>multiple threads, and it will. >> >>You didn't ask about what performance improvement will be the result. HT will >>bring an additional 0%-30% depending on engine and position, which is much lower >>than what you would get from a multi-processor computer. As the computer still >>only has one physical processor, that's also logical. >> >>I recently bought a PIV3.2 with HT ability, but have only tried it with Crafty >>so far, when it is about "Deep" programs. For Crafty 19.10 +20% looks like a >>reasonable speedup number on average. >> >>Peter > >Additionally it will not work well for Shredder for example which was the >original question. I have dual xeon 2.8 and when i turn Hyper-threading off i have lower Kn/s for Shredder or Deep junior 8 for example . I think a Quad is far more competitive as it has 4 physical processors.
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