Table 1.

FBA results for ME76664 before and after lifting

68299 rows	Simplex		Barrier
76664 columns	Before	After	Before	After
Iterations	48603	58288	56490	9985
CPU time	242	292	384	93
Infeasibilities	1.3×10−4	2.9×10−6	1.4×10−1	3.4×10−6

FBA results for the E. coli Metabolic-Expression model ME76664 using CPLEX primal simplex and barrier solvers. Iterations, time, and sum of infeasibilities before and after lifting. The iterations in columns 4 and 5 include about 100 for the barrier solver and the remainder for the simplex crossover.