[Cbc] Initial integer feasible solution

[Gabrielle A. Grün]

}
Hi Pratim,

You may try the hotstart approach::

/** Pass in target solution and optional priorities.
If priorities then >0 means only branch if incorrect
while <0 means branch even if correct. +1 or -1 are
highest priority */
void CbcModel::setHotstartSolution(const double * solution, const int * 
priorities=NULL) ;

Take care.

Gabrielle



----- Original Message ----- 
From: Pratim Vakish
To: cbc at list.coin-or.org
Sent: Thursday, October 02, 2008 6:11 PM
Subject: [Cbc] Initial integer feasible solution


Hello,

I am solving large-scale MIP problems using the CBC solver and the AMPL 
interface.

For some problems, I know an integer feasible solution of good "quality" and 
I would like CBC to use it as first incumbent solution in the 
branch-and-bound tree.
I think that the CBC option CbcModel::setBestSolution() allows to do that.

I use AMPL and I would like to know what is the AMPL command to use this 
option?
How can I tell CBC (with AMPL) which solution I would like to use as first 
incumbent solution?

Thanks very much,

Pratim



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