CPLEX 12.10.0.0: unrecoverable failure: CPLEX error # 22.

[Benjamin Goffaux]

Hello, 

I'm running an optimization problem using the solver CPLEX. I got this error from my terminal : CPLEX 12.10.0.0: unrecoverable failure: CPLEX error # 22.

I was wondering what this error means. 

Thanks in advance. 

Benjamin

[AMPL Google Group]

IBM's documentation includes a list of CPLEX solution status codes. For code #22 there's a link to this short description: "(Barrier only) . . . Stopped due to a limit on the dual objective." This is not too clear, but I would guess it means that, in the barrier method, the dual objective value has become too large for reliable computations to continue. To check this, add bardisplay=1 to your cplex_options string; that will show the dual objective value (and other information about the solution) at every iteration.

--
Robert Fourer
am...@googlegroups.com

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