Gurobi 5.0.1 (linux64) logging started Tue Jan 22 21:29:53 2013 Optimize a model with 144000 rows, 216002 columns and 288000 nonzeros Model has 72000 quadratic constraints Presolve time: 0.17s Presolved: 144000 rows, 216002 columns, 288000 nonzeros Presolved model has 72000 second-order cone constraints Ordering time: 0.02s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 2.160e+05 Factor NZ : 5.040e+05 (roughly 150 MBytes of memory) Factor Ops : 1.800e+06 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.08973907e+07 0.00000000e+00 1.32e-11 4.98e-01 2.91e+02 0s 1 1.24153031e+07 2.55731269e+06 1.10e-06 4.59e-05 4.56e+01 1s 2 9.32130588e+06 7.42030476e+06 1.59e-07 2.77e-06 8.80e+00 1s 3 8.58575253e+06 8.20299432e+06 3.48e-08 3.37e-07 1.77e+00 1s 4 8.35694245e+06 8.32140256e+06 3.16e-09 1.37e-08 1.65e-01 2s 5 8.32969893e+06 8.32754476e+06 1.36e-10 1.09e-09 9.97e-03 2s 6 8.32846950e+06 8.32818912e+06 1.68e-11 1.59e-10 1.30e-03 2s 7 8.32834735e+06 8.32829510e+06 4.68e-12 6.12e-12 2.42e-04 3s 8 8.32831048e+06 8.32829867e+06 1.12e-12 3.32e-12 5.47e-05 3s 9 8.32830499e+06 8.32829934e+06 7.32e-13 8.12e-12 2.62e-05 3s Barrier solved model in 9 iterations and 3.30 seconds Optimal objective 8.32830499e+06