Author: Jay Urbanski
Date: 07:41:04 06/12/03
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On June 12, 2003 at 10:06:40, Uri Blass wrote: >On June 12, 2003 at 07:58:48, Jay Urbanski wrote: > >>On June 11, 2003 at 10:12:35, Helmut Conrady wrote: >> >> >>>What do you mean by that? Who will release uni-processor version? Shredder 7.04 >>>is currently tested by SSDF on a single processor machine. May be it´s a >>>misunderstanding. Shredder is both a single and multi-processor-version. You >>>only have to change the item "threads" in the GUI. >>> >>>Helmut >> >>It's been claimed several times by several people that implementing SMP support >>in a program will slow down its performance slightly when running on a >>uni-processor machine. The arguments make some sense to me so I was just >>wondering out loud if Shredder might be stronger on SSDF if they released a >>version without SMP support. >> >>You can certainly change the # of threads in Deep Fritz or Deep Junior to 1 >>also, but the claim is that they will perform slightly slower than the versions >>with no SMP support in the code at all. >> >>Perhaps the authors could weigh in? > >I think that there should be no problem to use different code for 1 thread in >the same program and if the number of threads is 1 the program can >call a different exe file. > >I use only one processor but >I do not like the idea that customers who pay for using more than one processor >get something weaker when they want to use one processor. > >The point is that customers may want to use one processor in part of the time >and 2 processors in another part of the time and you tell these customers that >they need to buy both Junior8 and Deep Junior8 if they want optimal results. > >Uri I agree with your reasoning and I certainly agree with your desire to own optimal engines on whatever hardware I want to run the engines on without having to shell out $150 for both engines. Having said that there are certainly (at least perceived) financial disincentives for the engine authors to do this. If I have to choose I like Shredder's approach of offering an SMP engine at the normal price because I almost always use an SMP system. But it would be nice to know that it's running at optimal speeds even with one thead because I do limit the engines to one thread a piece when running engine matches.
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