IBM ILOG CPLEX is the best known and most widely used large-scale solver. Its efficiency and robustness have been demonstrated over two decades in thousands of commercial installations worldwide.

Summary

IBMDecisionOptimization / packages / cplex 20.1. 4 The IBM CPLEX Community Edition runtime for Python. 35305 total downloads Last upload: 3 months and 2 days ago. Version 12.9 of IBM ILOG CPLEX Optimization Studio July 01, 2019. IBM ILOG CPLEX Optimization Studio Version 12.9 is now available on Passport Advantage for commercial users, through the Academic Initiative program for academics and students, and as a trial.

Developer: IBM ILOG

Current version: 20.1

Problem types supported: Linear and quadratic optimization in continuous and integer variables. Support is provided for both convex and nonconvex quadratic objectives, and for convex quadratic constraints.

Special forms detected: Logical implications in the form of “indicator” constraints. Convex quadratic expressions in objectives, and convex quadratic constraints of elliptic and conic types.

Algorithms available: For continuous problems, primal and dual simplex, interior-point (barrier); for integer problems, advanced branch-and-bound with presolve, feasibility heuristics, and cut generators. For continuous problems comprised mostly or entirely of linear network flow constraints, network simplex.

Special features: Shared-memory parallel processing for barrier, branch-and-bound. Concurrent optimization by several methods to determine best choice. Special facilities for parameter tuning and infeasibility diagnosis.

See also:ILOG CP for AMPL, covered by the CPLEX for AMPL license, for access to constraint programming and more general CPLEX handling of logical constraints.

Further information

IBM ILOG CPLEX website
CPLEX for AMPL option listing
CPLEX-AMPL interface source code with makefiles and instructions

Instructions for joining the IBM Academic Initiative

CPLEX for AMPL 12.2 User’s Guide

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Bridge the gap between analytical insights and actions with prescriptive analytics

Bridge the gap between analytical insights and actions with prescriptive analytics Read the Aberdeen report

Transform your business decision-making with data science

IBM® ILOG® CPLEX® Optimization Studio uses decision optimization technology to optimize your business decisions, develop and deploy optimization models quickly, and create real-world applications that can significantly improve business outcomes.

How? IBM ILOG CPLEX Optimization Studio is a prescriptive analytics solution that enables rapid development and deployment of decision optimization models using mathematical and constraint programming. It combines a fully featured integrated development environment that supports Optimization Programming Language (OPL) and the high-performance CPLEX and CP Optimizer solvers. It’s data science for your decisions.

New advancements for constraint programming, performance improvements and more

New advancements for constraint programming, performance improvements and more Explore what’s new in 2021 (17:07)

IBM Decision Optimization for Watson Studio

IBM Decision Optimization is also available within Cloud Pak for Data where you can combine optimization and machine learning within a unified environment— IBM Watson® Studio — that enables AI-infused optimization modeling capabilities.

Testimonials

“ Price, performance and familiarity - that's why CPLEX was chosen. It is a known technology in the industry, and when you're the first to market with something new, that matters. ”

David Fell
Commercial Manager
Deswik, an IBM partner

What's new in IBM ILOG CPLEX Optimization Studio

Manage constraints without explicit modelling

Allow the user to incorporate external functions evaluated outside the engine search — for example, from simulation software — into constraints and goals.

Get better solutions faster

Double speed solution time compared to the default functionality of finding balance between optimal and feasible solutions.

Make easy connections to data sources

Connect to ODBC, MySQL and CSV without coding using language constructs in IDE through JDBC driver. Use a custom-built connector for other data sources through the dynamic libraries included.

Download and go

Get up and running in less than 15 minutes with the developer option, now available in monthly and annual subscriptions.

Benefits of IBM ILOG CPLEX Optimization Studio

Replace intuition with factual decisions

Translate business problems to optimization models and solve them using powerful CPLEX engines.

Solve a range of optimization problems

Uncover mathematical programming, constraint programming and constraint-based models using CPLEX engines.

Choose your deployment

Choose from on-premises, cloud and hybrid deployment options to successfully deliver prescriptive analytics through mathematical and constraint programming.

Gain better outcomes for many industries

Help reduce operating costs through better allocation of important informaiton with IBM ILOG CPLEX Optimization Studio.

Why IBM ILOG CPLEX Optimization Studio is the best choice for decision-making

Offers established optimization technology with more than 25 years experience

Choose a provider with decades of expertise in optimization technology. The prestigious Edelman Prize is given each year to the best practitioner project in operations research. IBM CPLEX Optimizer is used four times more than any other optimization technology to build innovative solutions for solving difficult challenges by Edelman finalists.

Provides a comprehensive end-to-end solution for solving complex problems

Read how IBM ILOG CPLEX Optimization Studio provides a comprehensive end-to-end solution for even the most complex challenges. This includes integrating with IBM SPSS® Modeler, running optimization algorithms on cloud and allowing for user collaboration and powerful visualizations in an intuitive user interface.

Enables development and deployment of optimization models quickly and accurately

Use OPL, an algebraic modeling language that makes it easier to understand and see constraints, goals and costs. Choose from a large set of interfaces, programming languages or deployment scenarios. Deploy in Java, Python, .NET, C and C++ or with a client/server architecture. Use built-in development tools for debugging, profiling, tuning and conflict detection. Enjoy total flexibility for modeling with a compact and expressive OPL, and an IDE with diverse model development services that no other organization provides.

Provides one solution for many industries

Read this infographic to see how leading org

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