Author: Chessfun
Date: 08:24:10 11/02/05
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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.
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