mfansler/so-ipopt.yaml

Created December 9, 2020 18:13

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Conda environment for Pyomo with IPOPT

Raw

so-ipopt.yaml

	name: so-ipopt
	channels:
	- conda-forge
	- defaults
	dependencies:
	- pyomo
	- ipopt

Author

mfansler commented Dec 9, 2020

Created for this SO question.

Test Case

(base) $ conda env create -f so-ipopt.yaml
(base) $ conda activate so-ipopt
(so-ipopt) $ python

Once in Python interpreter, run

from pyomo.environ import *

# model
m = ConcreteModel()
m.x = Var()
m.c = Constraint(expr=m.x >= 2)
m.o = Objective(expr=m.x)

# solver
s = SolverFactory('ipopt')
#s.options['fixed_variable_treatment'] = 'make_parameter'  # this line didn't work for me
s.solve(m, tee=True, keepfiles=True)

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