# How do I set solver_parameter to make Gurobi use more than one processor?

As suggested previously by Nathann Cohen, the method `solver_parameter`

allows to do such a thing

```
sage: p = MixedIntegerLinearProgram(solver = "Gurobi")
sage: p.solver_parameter?
```

In the documentation that appears, it says:

Gurobi’s parameters should all be available through this method. Their list is available on Gurobi’s website http://www.gurobi.com/documentation/5....

but this link is broken and leads us to http://www.gurobi.com/documentation/ instead. How do I set solver_parameter to make Gurobi use more than one processor?