Author: Chessfun
Date: 09:37:09 11/02/05
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On November 02, 2005 at 12:28:37, Gregory Owett wrote: >On November 02, 2005 at 11:24:10, Chessfun wrote: > >>On November 02, 2005 at 10:57:35, Gregory Owett wrote: >> >>>Recently, I launched two tournaments (ponder off) with the same participants, on >>>two different machines. Here results: >>> >>>On P4 2.2 T=15'+5" : >>> >>>1. Fruit 2.2.1 KS104 7,5 / 10 >>>2. Shredder 9 UCI 5,5 >>>3. Shredder 7.04 CLm1 5 25,00 >>>4. Fruit 2.2.1 Uri 5 23,00 >>>5. Shredder 8 CLD 3,5 17,25 >>>6. Fruit 2.2.1 3,5 16,50 >>> >>> >>>On AMD x2 dual core 4800+ T=15'+5" : >>> >>>1. Shredder 8 CLD 6,5 / 10 >>>2. Fruit 2.2.1 Uri 6 >>>3. Fruit 2.2.1 KS104 5 25,75 >>>4. Fruit 2.2.1 5 24,25 >>>5. Shredder 9 UCI 4,5 >>>6. Shredder 7.04 CLm1 3 >>> >>> >>>The success of Shredder 8 CLD (UCI) on the dual core machine, confirms what the >>>task manager indicated, i.e. which Shredder 8 CLD, in spite of it is >>>single-threaded engine, used 99% of the two processors, while all the others >>>used 50%, in other words, only one processor. >>> >> >>Well both Shredder 7 and 8 were SMP capable. So you must edit engine parameters >>and tell it to use only one thread. >> >>>(Native engines, as F8, J9, H9, CT15 etc...use 99% too.) >>None of those in single versions are SMP capable so I would say on a dual that >>is impossible. >> >>>Peter Kasinski thinks that Windows task manager is confused and carryforwards >>>incorrectly. >> >>I have run every engine and observed task manager and it seems to switch all >>correctly I've seen no odd behavior at all. >> >>Sarah. > >The goal, it is rather than the engines use two processors instead of one! But >by editing the parameters, for example for Shredder, there is no possibility of >choosing one or two processors to be used. Of course there is. Open the engine parameters and change threads from 2 to 1 it's there believe me I've done it. Sarah.
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