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Subject: recursive parallel search

Author: Daniel Shawul

Date: 21:49:37 12/25/04


Hi
 i read in the DTS paper that the main advantage of non recursive
search is that splitting is possible anywhere in the tree.
My quesion isn't it possible to split at shallower depth on the current line
of search (from 0 to current ply P), by just undoing the moves made.
If after searching few moves,IE when i get a reliable bound, i immediately undo
the move that led to the current position with one of my threads, and then start
parallel search at the previous ply. Or i can undo two moves back  and start
par. search at P-2.

I think with non-recursive search the only thing possible is to split at points
on the current line of search.

This is like a modified PVS which releases idle processors after a good
bound is established to search at previous plies.
what do you think?

daniel



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