Author: Stephen A. Boak
Date: 14:19:29 05/26/01
Go up one level in this thread
On May 26, 2001 at 13:44:57, John Merlino wrote: >On May 26, 2001 at 03:35:56, Stephen A. Boak wrote: > >>On May 25, 2001 at 13:35:18, John Merlino wrote: >> >>>>>1) You can "analyze" with any personality, including WinBoard engines (if they >>>>>support the "analyze" command. Just make the personality that you want to >>>>>analyze one of the players in the game, and set the time control to "Infinite". >>>>>That should do the trick. >>>>> >>>>>2) You can change the hash table size of the Chessmaster personality (for >>>>>analysis/mentor features only!) by editing the CM.INI file and adding the >>>>>following: >>>>> >>>>>[mentor] >>>>>ttable_size=N >>>>> >>>>>where 'N' is the number of MEGABYTES you want to allocate for the hash table. >> >>What CM8000 patch version(s) will this work with? >> >>What about overnight game analysis? How can I analyze a game using, say, 64 or >>128MB HT--is this possible? >> > >The "ttable_size" entry was added for v1.0.2. > >NOTE: I was incorrect above when I said it should be in the CM.INI file in the >Chessmaster directory. This entry actually must be put in your USER'S INI file! >This is so each user can have different settings. > >By putting this entry into your user's INI file, all mentor features (such as >advice, game analysis, solve for mate, and the Thinking Lines window) will cause >the mentor engine to allocate that many megabytes of hash table space. If you're >talking about analyzing an entire game, then just use the Game Analysis feature. >If you just want to look at a single position for a very long time, just set up >the position, make both players human, set the time control to "Infinite", open >the Thinking Lines window, and check the "Chessmaster" checkbox. It will run >indefinitely.... > >jm Thanks--now it is much more clear. 1. Does N have to be an exact power of 2 (16, 32, 64, 128)? 2. Any max limit for N? 3. What are the practical limits for N? I am aware of a sort of guideline: use max of 50% of total RAM. On my oldest comp, with only 96MB total RAM, I tried 64MB and that caused continual Hard Drive thrashing--couldn't stop it without doing Ctrl-Alt-Del, and even that didn't stop it quickly. I'd like to try 48 (not a power of 2), or 32MB only if necessary. 4. SUGGESTION--show the ttable_size (Hash Table size) in the Game Analysis output file (next to the analysis time per move); also show it somewhere in the Show Thinking Lines window (perhaps in the title bar, or beside the boxes that can be checked for White Black or Chessmaster). --Steve
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