![]() Type "help", "copyright", "credits" or "license" for more information. Place the executable in the same folder or directory as your AMPL executable, or anywhere in your search path. Under Unix variants, you may also have to make the file executable by giving a command such as chmod +x solvfilename. % setenv LD_LIBRARY_PATH /util/python-2.4/lib:$ To install a solver, download and decompress the executable file appropriate for your computer, as indicated below. IBM ILOG CPLEX Optimization Studio is an analytical decision support toolkit for rapid development and deployment of optimization models using mathematical and constraint programming. The IBM ILOG CPLEX Optimizer solves integer programming problems, very large linear programming problems using either primal or dual variants of the simplex method or the barrier interior point method, convex and non-convex quadratic programming problems, and convex quadratically constrained problems (solved via second-order cone programming, or SOCP). CPLEX continues to be actively developed under IBM. Bixby and was offered commercially starting in 1988 by CPLEX Optimization Inc., which was acquired by ILOG in 1997 ILOG was subsequently acquired by IBM in January 2009. The CPLEX Optimizer was named for the simplex method as implemented in the C programming language, although today it also supports other types of mathematical optimization and offers interfaces other than just C. In 2004, the work on CPLEX earned the first INFORMS Impact Prize. IBM ILOG CPLEX Optimization Studio, (often informally referred to simply as CPLEX) is an optimization software package.
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