Gurobi 5.0.1 (linux64) logging started Tue Jan 22 20:09:26 2013 Optimize a model with 54000 rows, 81002 columns and 108000 nonzeros Model has 27000 quadratic constraints Presolve time: 0.06s Presolved: 54000 rows, 81002 columns, 108000 nonzeros Presolved model has 27000 second-order cone constraints Ordering time: 0.01s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 8.100e+04 Factor NZ : 1.890e+05 (roughly 60 MBytes of memory) Factor Ops : 6.750e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.32267836e+07 0.00000000e+00 2.06e-12 4.95e-01 2.96e+02 0s 1 4.67495044e+06 9.33951894e+05 4.28e-07 4.80e-05 4.62e+01 0s 2 3.48710889e+06 2.75549987e+06 6.20e-08 2.98e-06 9.03e+00 0s 3 3.20055188e+06 3.06002220e+06 1.36e-08 3.59e-07 1.73e+00 1s 4 3.12750475e+06 3.09815258e+06 2.62e-09 7.14e-08 3.62e-01 1s 5 3.11064030e+06 3.10730122e+06 3.12e-10 5.38e-09 4.12e-02 1s 6 3.10911358e+06 3.10819844e+06 1.15e-10 6.90e-11 1.13e-02 1s 7 3.10825318e+06 3.10820739e+06 3.79e-12 1.15e-11 5.65e-04 1s 8 3.10823558e+06 3.10821433e+06 2.03e-12 3.91e-12 2.62e-04 1s 9 3.10822819e+06 3.10821454e+06 1.26e-12 2.08e-12 1.68e-04 1s 10 3.10821920e+06 3.10821457e+06 3.41e-13 2.16e-12 5.72e-05 1s 11 3.10821725e+06 3.10821615e+06 1.28e-13 5.43e-11 1.37e-05 1s Barrier solved model in 11 iterations and 1.41 seconds Optimal objective 3.10821725e+06