Gurobi 5.0.1 (linux64) logging started Tue Jan 22 20:03:57 2013 Optimize a model with 38000 rows, 57002 columns and 76000 nonzeros Model has 19000 quadratic constraints Presolve time: 0.04s Presolved: 38000 rows, 57002 columns, 76000 nonzeros Presolved model has 19000 second-order cone constraints Ordering time: 0.01s Barrier statistics: Dense cols : 2 Free vars : 2 AA' NZ : 5.700e+04 Factor NZ : 1.330e+05 (roughly 40 MBytes of memory) Factor Ops : 4.750e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.64055829e+07 0.00000000e+00 1.01e-12 4.95e-01 2.97e+02 0s 1 3.28310464e+06 6.55234586e+05 4.64e-07 4.84e-05 4.61e+01 0s 2 2.45464091e+06 1.94365323e+06 6.64e-08 2.96e-06 8.96e+00 0s 3 2.25439538e+06 2.15592926e+06 1.48e-08 3.52e-07 1.73e+00 0s 4 2.20225719e+06 2.18483093e+06 2.79e-09 4.26e-08 3.06e-01 0s 5 2.18974005e+06 2.18619752e+06 6.64e-11 2.93e-08 6.21e-02 1s 6 2.18939448e+06 2.18898164e+06 1.87e-11 2.63e-09 7.24e-03 1s 7 2.18931064e+06 2.18913771e+06 7.01e-12 1.14e-09 3.03e-03 1s 8 2.18927378e+06 2.18925351e+06 2.05e-12 4.74e-11 3.56e-04 1s 9 2.18926218e+06 2.18925643e+06 5.40e-13 1.90e-11 1.01e-04 1s 10 2.18925947e+06 2.18925772e+06 1.85e-13 5.86e-12 3.07e-05 1s Barrier solved model in 10 iterations and 0.90 seconds Optimal objective 2.18925947e+06