Author: Terje Vagle
Date: 09:54:12 08/16/01
Go up one level in this thread
On August 16, 2001 at 12:17:40, Gordon Rattray wrote: >On August 16, 2001 at 11:50:53, Uri Blass wrote: > >>On August 16, 2001 at 07:35:16, Gordon Rattray wrote: >> >>>On August 16, 2001 at 05:54:50, Terje Vagle wrote: >>> >>>>On August 16, 2001 at 05:21:51, Bertil Eklund wrote: >>>> >>>>>On August 16, 2001 at 03:16:59, Terje Vagle wrote: >>>>> >>>>>>Hi all, >>>>>> >>>>>>When I run Fritz 6 or Junior 6 in infinite mode over night, the NPS drop from >>>>>>approx. 600KNS from when I start it to approx 75KNS when it has been running for >>>>>>about 8-10 hours. The clock also starts to blink. >>>>>> >>>>>>BUT, when I run Fritz 5.32 in the same conditions, it continues the analysis >>>>>>with the same KN/s even after several days! >>>>>> >>>>>>WHY? >>>>>> >>>>>>Thanks in advance. >>>>>> >>>>>>Regards >>>>>> >>>>>>Terje Vagle >>>>> >>>>>Hi! >>>>> >>>>>Check the HD activity! It is some kind of overflow of the memory. >>>>>Try to lower the hash-tables a bit. >>>>> >>>>>Bertil >>>> >>>> >>>>Hi, >>>> >>>>No Bertil, that is not it I think. I have 512 MB ram on my PC and hashsize of >>>>128 MB. >>> >>> >>>I have seen the same problems. Like yourself, I am sure that there is no >>>endgame tablebases or other disk access coming into effect. My hashtable size >>>was 256Mb on a 512Mb RAM machine and it was no where near to being an endgame >>>position. I had just put it down to some sort of bug or weakness or the >>>program?! >> >>My guess is that the number of nodes is simply not correct. >>It is probably no bug and no weakness because the program is not supposed to >>know to count nodes but to play chess and if the program use 32 bit number for >>the number of nodes the number is not correct at long time control and there is >>no problem(at least there is no problem if the program do not use the number of >>nodes to decide which lines to search first). > >I disagree. > >If a chess program displays the number of nodes, then it should be correct. >Otherwise, what is the point in displaying it at all!! I agree that this isn't >as significant a bug as, for example, if the program didn't play chess according >to the rules, but it's still a bug. I accept that not all bugs have equal >significance. > >If it's a 32 bit number that is wrapping, this is a problem. The Fritx GUI is >designed to show node counts. Fritz is designed to be able to analyse over long >periods of time. If this doesn't work, it's a bug. > >Gordon I totally agree with you, Gordon. Fritz 5.32 can run for days and show total Nodes of analysis of more than 50 billion! I haven't seen these numbers on Fritz 6 or Junior 6 when they have been analysing in about the same amount of time.... Terje
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