Gurobi 5.0.1 (linux64) logging started Tue Jan 22 20:09:11 2013 Optimize a model with 54000 rows, 81002 columns and 108000 nonzeros Model has 27000 quadratic constraints Presolve time: 0.07s 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 2.31822193e+07 0.00000000e+00 1.21e-12 5.00e-01 2.96e+02 0s 1 4.68050242e+06 9.49066023e+05 1.98e-07 4.78e-05 4.61e+01 0s 2 3.51021753e+06 2.78284342e+06 2.88e-08 2.97e-06 8.98e+00 0s 3 3.22260432e+06 3.08341017e+06 6.20e-09 3.65e-07 1.72e+00 1s 4 3.14998057e+06 3.11717576e+06 1.17e-09 1.07e-07 4.05e-01 1s 5 3.13343912e+06 3.12048157e+06 5.69e-11 8.34e-08 1.60e-01 1s 6 3.13235408e+06 3.13203923e+06 6.11e-12 1.30e-09 3.89e-03 1s 7 3.13223447e+06 3.13221087e+06 4.83e-13 8.72e-11 2.91e-04 1s 8 3.13222702e+06 3.13222296e+06 2.06e-13 4.90e-12 5.02e-05 1s 9 3.13222557e+06 3.13222340e+06 3.91e-13 1.19e-12 2.68e-05 1s Barrier solved model in 9 iterations and 1.20 seconds Optimal objective 3.13222557e+06