Author: Joseph Anthony Merolle
Date: 10:14:24 08/21/05
Go up one level in this thread
On August 21, 2005 at 12:28:21, Günther Simon wrote: >On August 21, 2005 at 12:08:35, Joseph Anthony Merolle wrote: > >>On August 21, 2005 at 11:08:09, Joseph Anthony Merolle wrote: >> >>>On August 21, 2005 at 06:53:20, Günther Simon wrote: >>> >>>>On August 21, 2005 at 06:20:04, Joseph Anthony Merolle wrote: >>>> >>>>>On August 21, 2005 at 06:13:18, Leo Dijksman wrote: >>>>> >>>>>>On August 21, 2005 at 05:47:18, Joseph Anthony Merolle wrote: >>>>>> >>>>>>> >>>>>>> >>>>>>>It seem that when running chess applications such as S9 uci and S9 CB there >>>>>>>seems to be a leak of some kind. When playing a game my KNS seems to be running >>>>>>>optimally however as the game goes on my KNS tanks dramatically. For example I >>>>>>>can start off 400 kns hitting plys of 18 for about 5 moves or so then as the >>>>>>>game goes on it tanks to 27kns with plys of 8-10. Some times it picks up again >>>>>>>only to tank. I ran extensive diagnostics and nothing failed. I also ran AVG >>>>>>>virus protection nothing was found and there is no throttling with throttle >>>>>>>watch. Is there a problem with my computer, my install or applications (Shredder >>>>>>>9, Chessbase and UCI)?. Any help in correcting this problem/s would be must >>>>>>>appreciated. Below is my system config. >>>>>>> >>>>>>> >>>>>>>Processor Mobile Intel(R) Pentium(R) 4 CPU 3.06GHz >>>>>>>Processor Speed 1.56 GHz >>>>>>>Memory (RAM) 256 MB >>>>>>>Operating System Microsoft Windows XP Home Edition >>>>>>>Operating System Version 5.1.2600 >>>>>>> >>>>>>> >>>>>>> >>>>>>>Regards >>>>>>> >>>>>>>Jospeh >>>>>> >>>>>>You did not say how much you use for hashtables and egtbs, probably you have set >>>>>>it to high!? (Use 64MB or less) >>>>>>Is 256MB RAM not a bit low for this PC? >>>>>> >>>>>>Leo. >>>>> >>>>> >>>>>Leo , >>>>> >>>>> >>>>>Sorry to say my hash is set low (44) and this still this happens. My tb is set >>>>>to factory setting. With nothing running in back ground ether.. Thanks for your >>>>>reply >>>>> >>>>>Joseph >>>> >>>>Disable XPs' automatical system recovery feature during the matches, >>>>that should help, if not please ask again. >>>>(when saying you run nothing in background, I guess you mean you also >>>>have disabled AVG?) >>>> >>>>Guenther >>> >>> >>>Guenther , >>> >>>Thanks for the advise however can you tell me how to disable the system >>>recoverly feature. In the mean time I will get some test positions and will post >>>as aked for. >>> >>> >>>Joseph >> >> >>Ok here is an example with a test position >> >> >> >>6rk/1NR2p1p/8/3Qq3/3p4/PP1n1pPP/5P2/6K1 w - - >> >>Here Rook C7 is the rt move which my system finds however at 5 min of analisis >>look at how the kns tanks. The hash is set to 96 mb if I dont set it that high >>the system never finds Rook C7 because it tanks to fast. However the same >>tanking happens with lower hash (44.) I know it s not a hash problem (set to >>high) because the position would never get off the ground (486 k/ns)(in the >>first place if it was. Again there is nothing running in back ground in addition >>I made sure to start with a fresh rebut. >> >> >> >>13/24 0:01 +2.55 1.Rc6 Qf4 (446.782) 357 >> 14/29 0:01 +2.55 1.Rc6 Qf4 (749.100) 396 >> 15/46 0:17 +2.30-- 1.Rc6 Qf4 (8.472.320) 478 >> 15/46 0:24 +1.81 1.Rc6 Rg5 2.Qd8+ Qxd8 3.Nxd8 Kg7 4.Rd6 Rc5 5.Rd7 Rc1+ >>(11.779.622) 487 >> 15/46 0:27 +1.82++ 1.Rc7 (13.325.340) 485 >> 15/46 0:29 +2.17++ 1.Rc7 (14.435.217) 486 >> 15/46 0:35 +2.42 1.Rc7 Nf4 2.Qxf3 Nxh3+ 3.Kg2 (17.162.410) 486 >> 16/42 0:58 +2.67++ 1.Rc7 Nf4 (25.562.221) 438 >> 16/42 5:18 +2.68 1.Rc7 Qe5 2.Qxe5+ Nxe5 3.Re7 (32.512.932) 102 >> >> >>as you can see after 5 min analisis a horible 102 k/ns and droping at that.... >> >> >>Thank s for any additional help >> >> >>Joseph > > >Hi Joseph, > >For deactivating the system recovery: > >-> system control -> system -> system recovery >-> check option deactivate > >You did not say though, that you were talking about position analysis >(not games)and here especially late middle game, early endgame analysis. >It may be that your slow down is a normal one, because of tablebases >kicking in! Your last main line probably hits already a lot of tablebases >and tbs probing can slow down kn/s to 25% sometimes, depends on the engine! >I guess you probably have installed all 5 men and use them in your >example? >You can try to disable all tablebases for your test position above and >it should not show such a slow down, _if_ all is ok with your machine >setup. > >Regards, >Guenther No, not just position analysis I first noticed the problem playing engine matches on Play.com. I started droping games (all) to people with 1/2 the processor speed so I started to investigate. Then I noticed the dramatic K/ns droping even with most men stll on the board so I know its not a TB issus. :-(
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