Gurobi 5.0.1 (linux64) logging started Tue Jan 22 20:04:19 2013 Optimize a model with 40000 rows, 60002 columns and 80000 nonzeros Model has 20000 quadratic constraints Presolve time: 0.04s Presolved: 40000 rows, 60002 columns, 80000 nonzeros Presolved model has 20000 second-order cone constraints Ordering time: 0.01s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 6.000e+04 Factor NZ : 1.400e+05 (roughly 40 MBytes of memory) Factor Ops : 5.000e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.73217877e+07 0.00000000e+00 5.40e-13 5.00e-01 2.98e+02 0s 1 3.48971582e+06 6.94024858e+05 2.91e-07 4.88e-05 4.66e+01 0s 2 2.59864605e+06 2.04885623e+06 4.22e-08 3.07e-06 9.16e+00 0s 3 2.38931053e+06 2.27771258e+06 9.37e-09 3.75e-07 1.86e+00 0s 4 2.32444319e+06 2.30836201e+06 1.07e-09 5.63e-08 2.68e-01 0s 5 2.31465435e+06 2.31404764e+06 2.12e-11 2.79e-09 1.01e-02 1s 6 2.31444276e+06 2.31440482e+06 3.04e-12 2.15e-11 6.32e-04 1s 7 2.31441245e+06 2.31440799e+06 4.83e-13 1.04e-12 7.44e-05 1s 8 2.31440924e+06 2.31440813e+06 8.24e-13 1.65e-12 1.85e-05 1s Barrier solved model in 8 iterations and 0.77 seconds Optimal objective 2.31440924e+06