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AMPL > >Errors and Messages > >How can I tell whether messages on my screen are coming from AMPL or from the solver?

When a solver starts up, it displays a brief identification string such as MINOS 5.5 or CPLEX 12.4. Output that occurs before this string can be assumed to come from AMPL, while output after is the solver’s.

When a solver concludes its run, it returns a brief summary of the results, such as

optimal solution; objective 903202.0326
399 iterations (244 in phase I)

Output prior to this summary can be assumed to be caused by the solver, while output after is from AMPL again.

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