Author: John Merlino
Date: 17:48:38 05/26/01
Go up one level in this thread
On May 26, 2001 at 17:19:29, Stephen A. Boak wrote: >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)? No. >2. Any max limit for N? I believe Johan said that The King can allocate up to 2GB for hash tables. So, the limit would be 2048 (or, just to be safe, let's say 2000). >3. What are the practical limits for N? Your total PHYSICAL RAM - 48MB should be considered to be your absolute limit, but you might have problems (i.e. thrashing when The King tries to allocate too much memory) if you go that high. If you do, then try RAM - 64. >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. So, for this machine, it sounds like 48 would be your maximum, and 32 should be safe. >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). Noted! But it probably won't happen, because the 1.0.3 patch has been approved. All we need now is for the Ubi Soft guys to get our website up and running again! jm
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