IBM ILOG CPLEX has been a well known and widely used large-scale solver for over three decades. Its efficiency and robustness have been demonstrated through varied applications in thousands of commercial installations worldwide.

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How to use it

CPLEX options consist of a single-word option, or an option followed by an = sign and a value; a space may be used as a separator in place of the =.

ampl: option solver cplex; # change the solver
ampl: option cplex_options 'option1=value1 option2=value2'; # specify options
ampl: solve; # solve the problem


Solver options

Full list of solver options: