[gecode-users] size of the search tree

Christian Schulte cschulte at kth.se
Fri Mar 30 12:11:44 CEST 2007


Hi,

why would you like to know the size of the tree? Implicitly (assuming that
all branchings are binary, which they are), the size of the tree is almost
known: the number of leaves (failures plus solutions). The only part missing
are the open nodes. 

Is it really important? It is somewhat easy to add (the only additional
information needed is the height of the tree) but for example for comparing
models, the number of failures is sufficient.

Cheers
Christian

--
Christian Schulte, http://www.imit.kth.se/~schulte/ 

-----Original Message-----
From: users-bounces at gecode.org [mailto:users-bounces at gecode.org] On Behalf
Of Jean-Noël Monette
Sent: Thursday, March 29, 2007 5:25 PM
To: users at gecode.org
Subject: [gecode-users] size of the search tree


Hello,

Using Gecode, I would like to know what is the size of the search tree 
but this information is not given. If recomputation is disabled, I think 
that it can be computed as the sum of the number of clone, the number of 
fails and the number of solution found. However, when recomputation is 
activated, there is not a clone for each node of the search tree and I 
don't see how to recover the size of the tree.

Have you any solution?

Thanks a lot for your help,

Jean-Noël Monette

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