title: specifying tolerance for GLPK solver in PuLP Python
body: <p>I am running PuLP Programming Library in Python 2.7.8, Windows 32 bit. I'm using GLPK as my solver for a  mixed integer linear programming problem. The solver converges to approx. 1% of the optimal quickly, however time to compute the exact optimal solution is high. Is there a way to specify percent tolerance for GLPK solver using PuLP? I searched <a href="https://pythonhosted.org/PuLP/solvers.html" rel="nofollow">https://pythonhosted.org/PuLP/solvers.html</a> but it doesn't give any answer for GLPK solver.</p>