Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:56:52 2013 Optimize a model with 18000 rows, 27002 columns and 36000 nonzeros Model has 9000 quadratic constraints Presolve time: 0.02s Presolved: 18000 rows, 27002 columns, 36000 nonzeros Presolved model has 9000 second-order cone constraints Ordering time: 0.00s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 2.700e+04 Factor NZ : 6.300e+04 (roughly 20 MBytes of memory) Factor Ops : 2.250e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.80891369e+06 0.00000000e+00 1.99e-13 4.96e-01 2.99e+02 0s 1 1.56089316e+06 3.10626045e+05 9.58e-08 4.88e-05 4.63e+01 0s 2 1.16350447e+06 9.17241184e+05 3.64e-08 3.83e-06 9.12e+00 0s 3 1.06954979e+06 1.02091063e+06 7.84e-09 4.48e-07 1.80e+00 0s 4 1.03752564e+06 1.03418901e+06 4.97e-14 6.83e-08 1.24e-01 0s 5 1.03686622e+06 1.03680737e+06 2.84e-14 5.05e-10 2.18e-03 0s 6 1.03683269e+06 1.03682741e+06 4.26e-14 1.79e-11 1.95e-04 0s 7 1.03682942e+06 1.03682813e+06 1.49e-13 5.46e-12 4.79e-05 0s 8 1.03682860e+06 1.03682830e+06 8.53e-14 6.29e-13 1.11e-05 0s Barrier solved model in 8 iterations and 0.33 seconds Optimal objective 1.03682860e+06