The Gurobi and CPLEX backends for MixedIntegerLinearProgram() are extremely convenient.
Is there any prospect of solver_parameter() being implemented in the Gurobi backend? At present, when I use MixedIntegerLinearProgram() with solver="Gurobi" and try to set a Gurobi parameter using p.solver_parameter(), I get a "not implemented" error. I'm most interested in changing the tolerance for equality constraints for an MIP. I'd also like to change the 'threads' parameter (to be polite to colleagues with whom I share an 8 core machine). I'd switch to solver="CPLEX", for which -- according to the documentation -- the backend does implement solver_parameter(), except that CPLEX is taking forever to solve MIPs that Gurobi solves quickly. It could be a difference i the default parameter settings. thanks, Daniel -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-support?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
