[Coin-symphony] How to get quickly a solution ?

Ted Ralphs tkralphs at lehigh.edu
Tue Mar 8 14:39:25 EST 2005


Renaud,

SYMPHONY has two built-in primal heuristics (shamelessly stolen from 
Cbc), one of which is a rounding heuristic, but they are currently 
turned off by default. To turn them on, set the parameter 
"do_primal_heuristic" to 1. Just put the line

sym_set_int_param(env, "do_primal_heuristic", 1):

in your code before the call to sym_solve(). I can't promise it will 
work miracles, but hopefully, it will help!

Cheers.

Ted
-- 
Dr. Ted Ralphs
Assistant Professor
Industrial and Systems Engineering
Lehigh University
(610)758-4784
tkralphs at lehigh.edu
www.lehigh.edu/~tkr2



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