pulp working on MAC OS X 64bits with CPLEX or GUROBI?

[malone38]

Does anyone succeed in working  with CPLEX or GUROBI and PULP 1.5.2 on MAC OS X 64bits ?

CPLEX and GORUBI are installed on my MAC.

I have the following pulp.cfg.osx

[locations]

CplexPath = /Applications/IBM/ILOG/CPLEX_Studio125/cplex/lib/x86-64_darwin/static_pic/libcplex.a

#note the recommended gurobi changes must be made to your PATH

#and LD_LIBRARY_PATH environment variables

GurobiPath = /Library/gurobi562/mac64/lib/libgurobi56.so

CbcPath = cbc

GlpkPath = glpsol

PulpCbcPath = %(here)s/solverdir/cbc-osx

[licenses]

ilm_cplex_license = "LICENSE your-enterprise\nRUNTIME NEVER ..."

ilm_cplex_license_signature = 0

When I perform a pulpTestAll(), I get:

 pulp.pulpTestAll()

Testing zero subtraction

Testing continuous LP solution

Testing maximize continuous LP solution

Testing unbounded continuous LP solution

Testing Long Names

Testing repeated Names

Testing zero constraint

Testing zero objective

Testing LpVariable (not LpAffineExpression) objective

Testing MIP solution

Testing MIP relaxation

Testing feasibility problem (no objective)

Testing an infeasible problem

Testing an integer infeasible problem

Testing column based modelling

Testing dual variables and slacks reporting

Testing fractional constraints

Testing elastic constraints (no change)

Testing elastic constraints (freebound)

Testing elastic constraints (penalty unchanged)

Testing elastic constraints (penalty unbounded)

* Solver <class 'pulp.solvers.PULP_CBC_CMD'> passed.

Solver <class 'pulp.solvers.CPLEX_DLL'> unavailable

Testing zero subtraction

Testing continuous LP solution

memoryview: str object does not have the buffer interface

* Solver <class 'pulp.solvers.CPLEX_CMD'> failed.

Solver <class 'pulp.solvers.CPLEX_PY'> unavailable

Solver <class 'pulp.solvers.COIN_CMD'> unavailable

Solver <class 'pulp.solvers.COINMP_DLL'> unavailable

Testing zero subtraction

Testing continuous LP solution

Testing maximize continuous LP solution

Testing unbounded continuous LP solution

Testing Long Names

Testing repeated Names

Testing zero constraint

Testing zero objective

Testing LpVariable (not LpAffineExpression) objective

Testing MIP solution

Testing MIP relaxation

Testing feasibility problem (no objective)

Testing an infeasible problem

Testing an integer infeasible problem

Testing column based modelling

Testing fractional constraints

Testing elastic constraints (no change)

Testing elastic constraints (freebound)

Testing elastic constraints (penalty unchanged)

Testing elastic constraints (penalty unbounded)

* Solver <class 'pulp.solvers.GLPK_CMD'> passed.

Solver <class 'pulp.solvers.XPRESS'> unavailable

Solver <class 'pulp.solvers.GUROBI'> unavailable

Solver <class 'pulp.solvers.GUROBI_CMD'> unavailable

Solver <class 'pulp.solvers.PYGLPK'> unavailable

Solver <class 'pulp.solvers.YAPOSIB'> unavailable

I am desperate. Help!

[Stuart Mitchell]

when you run the python interpreter that you are using can you

>>> import gurobipy

or 

>>> import cplex

if not you need to run the gurobi or cplex setup.py files as detailed in their instructions.

most osx users tend to have more than one python interpreter installed so please ensure you have pulp and gurobi or cplex installed in the same python.

Stu

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Stuart Mitchell

PhD Engineering Science

Extraordinary Freelance Programmer and Optimisation Guru

www.stuartmitchell.com