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ampl / amplpy

Python API for AMPL

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Support for Bonmin solver in amplpy

amar123deep opened this issue · comments

commented

I am new to non linear optimisation area. My problem is formulated as Mixed Integer Non-linear programming. After checking online I found I can use bonmin solver on ampl webpage. Is there support for bonmin solver in amplpy as well? Can you please point out some examples? Thanks!

commented

You can use amplpy with any solver that is supported by AMPL. If in order to use bonmin with AMPL you use option solver bonmin;, you can switch the solver to bonmin in amplpy with ampl.option['solver'] = 'bonmin'.

from amplpy import AMPL
ampl = AMPL()
ampl.read('model.mod')
ampl.option['solver'] = 'bonmin'
ampl.solve()

Note that you need to donwload the bonmin binary for your platform from http://ampl.com/products/solvers/open-source/ and place it in the AMPL folder before being able to use it in AMPL.