Author: Robert Hyatt
Date: 07:57:45 05/15/05
Go up one level in this thread
On May 15, 2005 at 00:56:02, Les Fernandez wrote: >On May 14, 2005 at 23:43:44, Robert Hyatt wrote: > >>On May 14, 2005 at 13:44:51, Les Fernandez wrote: >> >>>Is there anyway I can clear cache while running a group of EPD positions without >>>having to run one position at a time to force the clearing of the cache. I was >>>kind of hoping there is a parameter that I can set to accomplish this. >>> >>>Thanks, >>> >>>Les >> >> >>cache? You mean transposition/refutation table (hash table) stuff? >> >>No particular reason to do so that I can think of... > >Hi Bob, > >I guess what I was thinking is that if I have alot of similar EPD positions in a >file and I run crafty on the data set that there is a chance that some of the >positions solutions would be found more quickly if there was some cache hits >from previous positions. I may be wrong since I am not quite sure what crafty >does but I seem to remember that at times cache hits on similar positions can >sometimes help in finding a solution. Is this correct? If I am wrong then are >you saying that if I have 20 very similar positions in a file and run crafty on >them that there wont be a difference in solution time whether I run the epd >psotions one at a time (thus resetting cach automatically) vs running all 20 >positions in a batch type mode? > >Thanks, > >Les That can happen, yes. I am not sure about how the EPD stuff is done, it might well clear the hash table anyway, I'll look...
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