[Help-glpk] moving interior point solution to simplex solver

[Andrew Makhorin]

>I am trying to solve a number of ill conditioned LPs.  lpx_interior
>is definitely faster than lpx_simplex

On api level lpx_simplex starts by default from "standard" basis of
all auxiliary variables (i.e. slacks). You could essentially reduce
the solution time calling lpx_adv_basis before lpx_simplex.