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FICO's avatar
FICO
Community Manager
4 years ago

How to get multiple solution

p.addcbintsol (printsol, None, 0) p.mipoptimize ("") The solver only returns one feasible solution in the callback function then stop, how do I ask for multiple solutions ?
fico® xpress
FICO's avatar
FICO
Community Manager
4 years ago

Hi Timo,

Thanks for your reply. I'm working with feasibility problem and I'm sure there are many feasible solutions. I tried your proposal but still only get one solution.

    p.setControl({'MIPADDCUTOFF': 1, 'MAXMIPSOL':5})
    p.addcbintsol (printsol, None, 0)
    p.solve()
 
def  printsol(my_prob, object):
    cols = my_prob.attributes.originalcols
    objval = my_prob.attributes.lpobjval
    x = []
    my_prob.getlpsol (x, None, None, None)
    print ("Integer solution found:", objval, "; values:")

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