Gurobi 5.0.1 (linux64) logging started Tue Jan 22 20:03:06 2013 Optimize a model with 36000 rows, 54002 columns and 72000 nonzeros Model has 18000 quadratic constraints Presolve time: 0.04s Presolved: 36000 rows, 54002 columns, 72000 nonzeros Presolved model has 18000 second-order cone constraints Ordering time: 0.01s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 5.400e+04 Factor NZ : 1.260e+05 (roughly 40 MBytes of memory) Factor Ops : 4.500e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.55885587e+07 0.00000000e+00 8.67e-13 4.99e-01 2.98e+02 0s 1 3.12813522e+06 6.24025624e+05 9.33e-08 4.86e-05 4.64e+01 0s 2 2.33847980e+06 1.84818784e+06 1.56e-08 3.35e-06 9.08e+00 0s 3 2.14541585e+06 2.05107686e+06 3.40e-09 4.12e-07 1.75e+00 0s 4 2.09835030e+06 2.07513114e+06 7.97e-10 1.04e-07 4.30e-01 0s 5 2.08487705e+06 2.08232164e+06 4.32e-11 1.83e-08 4.73e-02 0s 6 2.08401244e+06 2.08320683e+06 9.73e-13 8.49e-09 1.49e-02 1s 7 2.08398637e+06 2.08396522e+06 1.85e-13 1.70e-10 3.92e-04 1s 8 2.08398082e+06 2.08397721e+06 2.84e-14 3.68e-11 6.69e-05 1s 9 2.08398062e+06 2.08397943e+06 3.55e-14 1.14e-11 2.19e-05 1s Barrier solved model in 9 iterations and 0.78 seconds Optimal objective 2.08398062e+06