World-Leading Optimization Software, ILOG CPLEX Gets Ten-Fold Speed Increase

Innovations in the CPLEX Algorithm To Benefit Complex Resource Allocation Problems

PARIS and SUNNYVALE, Calif. – Sept. 26, 2007 -- ILOG® (NASDAQ: ILOG; Euronext: ILO, ISIN: FR0004042364), today announced that ILOG CPLEX® has broken performance records in new benchmark tests released this week – demonstrating processing times 10-times faster, on average, for the most complex business problems. CPLEX's performance increase will mean businesses in the supply chain, manufacturing and logistics markets, among others, can increase the scope of their planning from one region to across regions, turn an overnight batch job into a near real-time application, or do rapid what-if analysis on a planning problem.

ILOG CPLEX, the world’s most widely-deployed optimization software, improves business efficiency and decision making by allowing businesses to calculate the best utilization of existing resources and implement an action plan that can deliver potentially millions of dollars in savings.

Optimization problems -- such as how best to optimize a truck load, or where to cost effectively locate a distribution center -- are expressed using optimization models. For the benchmark tests, conducted on a single-core Intel processor, ILOG grouped the problems into two categories: mid-range problems, taking between one minute and one hour to solve, and problems taking more than one hour to solve.

The most complex business problems, in the more than one-hour category, benefited most from the improvements to the CPLEX mixed-integer programming (MIP) optimizer – solving 10-times faster, on average. These problems include many large planning and scheduling problems in the supply chain and transportation fields that optimize across, for example, many different time increments and involving different geographic regions. There were also significant improvements for mid-range category, which includes what-if analysis for planning applications, which CPLEX was able to solve on average three times faster than before.

The benchmarks also identified 150 optimization models that could not be addressed using the previous technology that can now be solved using ILOG's new algorithmic advancements. These innovations include improvements to ILOG’s branch-and-cut algorithm and other algorithmic enhancements that contribute to the significant performance gains. More details on the innovations will be discussed in detail later next month.

More than 1,000 commercial customers, including 160 members of the Global 500, use ILOG optimization tools, engines and applications to solve the world’s most challenging planning and scheduling problems. These customers include APL, BNSF, JR East, Logistics, Maersk, Schneider, SNCF, United Airlines, the United States Postal Service and UPS in transportation and logistics; and Airbus, Coors, Dell, Hansol Paper, Michelin, Mitsubishi Chemicals, Nippon Steel, Nissan, Porsche, Saint Gobain, Thyssen Krupp, and Toyota in manufacturing. ILOG optimization products are also used by a majority of leading Supply Chain Management software vendors, including Infor, Manhattan Associates, JDA/Manugistics, Oracle, Red Prairie, Infor and SAP, as well as in research programs at over 1,000 universities around the world, making the products the “gold standard” for performance and solution quality in the Operations Research community. For more information, please visit http://www.ilog.com/products/optimization.

About ILOG
ILOG delivers software and services that empower customers to make better decisions faster and manage change and complexity. Over 2,500 corporations and more than 465 leading software vendors rely on ILOG’s market-leading business rule management systems (BRMS), supply chain planning and scheduling applications as well as its optimization and visualization software components, to achieve dramatic returns on investment, create market-defining products and services, and sharpen their competitive edge. ILOG was founded in 1987 and employs more than 850 people worldwide. For more information, please visit www.ilog.com.

ILOG and ILOG CPLEX are registered trademarks of ILOG Inc. and ILOG S.A. All other trademarks are the properties of their respective owners.