Press Release

Concurrent and Opal-RT Unveil RT-LAB RLX-Real-Time Simulation Platform for iHawk Linux Systems
New Software Makes It Possible to Conduct High Fidelity Hardware-in-the-Loop Testing Under RedHawk Linux OS

I/ITSEC Booth #511

ATLANTA, Georgia, December 3, 2003 Concurrent Computer Corporation (NASDAQ: CCUR), Integrated Solutions Division, and Opal-RT Technologies Inc. (www.opal-rt.com), a leader in distributed simulation on PC-based platforms, today announced the development of RT-LAB RLX for Concurrents RedHawk real-time Linux operating system. With this development, Opal-RT extends its PC-based real-time simulation platform for use on Concurrents iHawk Linux systems, providing the design engineer with a scalable, high-performance real-time environment that utilizes commercial off-the-shelf (COTS) technologies to deliver hard-real-time simulations from complex dynamic models developed in The MathWorks' Simulink and National Instruments' MATRIXx. RT-LAB RLX is being previewed at the Interservice/Industry Training, Simulation and Education Conference (I/ITSEC) the first week of December in Orlando, Florida, Concurrent Booth # 511.

As a firmly established leader in the development of high-performance real-time technologies for both government and industry applications, Concurrent Computer Corporation is an ideal company for Opal-RT to partner with to further extend the reach of the RT-LAB platform, said Paul Goossens, Opal-RT Technologies vice president of Marketing. This combination will now allow the growing number of design engineers who make Linux their preferred OS to further shorten the overall design process of complex systems.

RT-LAB RLX revolutionizes the engineering process in system design. Its power and flexibility can be applied to the most complex simulation and control problems, dramatically speeding up test system implementation. RT-LAB RLX automatically prepares complex models for real-time execution. Using a simple six-step GUI, engineers can select a Simulink or SystemBuild model, assign subsystems to specific target nodes, transparently perform code compilation, establish inter-node communications and assign signal I/O.

Ken Jackson, Concurrents vice president of Business Development, Integrated Solutions Division, stated, Opal-RT has steadily developed a reputation as the industrys leading developer of high-performance, high fidelity software for conducting hardware-in-the-loop testing of complex control systems. We are excited about the development of RT-LAB RLX for Concurrents RedHawk real-time Linux operating system and believe this product, when released, will greatly expand the tool set available for design engineers focused on either man-in-the-loop or hardware-in-the-loop simulation."

RT-LAB RLX supports a wide range of run-time configurations from a single-platform host/target to a complex network of target systems controlled from a single host. RT-LAB RLX provides tools for running highly complex models on a dual, quad or 8-processor iHawk or a network of distributed iHawks using ultra low-latency communications to achieve the required performance. RT-LAB RLX iHawk target systems can be hosted by RT-LAB software running on an iHawk host with RedHawk Linux or a Windows PC.

RT-LAB RLX is tightly integrated with the Simulink modeling environment. A model developed in Simulink can be executed in real-time on one or more distributed targets. RT-LAB RLX provides a special blockset to prepare the model for distributed processing, inter-node communication and signal I/O. Once a model has been prepared, RT-LAB RLX uses Real-Time Workshop to convert separated components into C code for compilation on each target processor.

In addition, RT-LAB RLX is fully compatible with the MATRIXx product family Xmath, SystemBuild and AutoCode.

RT-LAB RLX takes full advantage of Concurrent iHawk symmetric multiprocessors with up to eight Intel Xeon processors per system running the RedHawk Linux real-time operating system. The iHawk is a high-performance PCI-based computer platform especially designed for real-time data acquisition, simulation and industrial systems applications.

Compatible with the popular Red Hat Linux distribution, RedHawk features high I/O throughput, fast response to external events, and optimized interprocess communication. RedHawk's multithreaded, fully preemptible Linux kernel with low-latency enhancements make it the ideal Linux environment for complex modeling applications. RedHawk's true symmetric multiprocessing support includes load-balancing and CPU shielding to maximize determinism and real-time performance in RT-LAB RLX target execution.

RT-LAB RLX is scheduled for general availability in Q1 of 2004.

About Opal-RT Technologies Inc.
Opal-RT provides software, hardware, and related solutions for real-time simulation applications, with the aim of enabling real-time parallel processing through flexible and affordable technologies.
The company offers a full range of engineering simulation products - from enabling technologies to turnkey engineering simulators - and consulting services that include systems integration, software development, simulation and modeling, problem-solving, and training. Opal-RT's core expertise is in distributed hard-real-time simulation, with experienced engineers designing real-time simulators for automotive, electrical power, aerospace, robotics, and other industries where fidelity and fault tolerance requirements push rapid prototyping and hardware-in-the-loop testing to their limits. Opal-RT's unique approach integrates parallel, distributed computing with commercial-off-the-shelf technologies. The resulting RT-LAB product range enables customers to develop simulations quickly, easily, affordably, and competitively. For more information about Opal-RT's range of Engineering Simulators and Distributed Processing Tools, see www.opal-rt.com.

About RT-LAB
RT-LAB is the real-time technology that revolutionizes the way model-based design is performed within the engineering organization. Through its openness, RT-LAB has the flexibility to be applied to any simulation and control problem, and scalability to provide a low-risk entry point for any application, allowing the developer to add computation power where and when needed-whether to dramatically speed up simulations or for real-time hardware-in-the-loop applications.

About Concurrent
Since 1966, Concurrent Computer Corporation (www.ccur.com), headquartered in Atlanta, Georgia, has been a premier provider of high-performance, real-time computer systems, solutions, and software for commercial and government markets. The companys Integrated Solutions Division focuses on strategic market areas that include hardware-in-the-loop and man-in-the-loop simulation, data acquisition, industrial systems, and software. Concurrent Computer Corporations Xstreme (VOD) Division is a leading supplier in the emerging digital video server marketplace. This market includes the broadband/cable, corporate training, education, hospitality, and video to the home. Concurrent provides sales and support from offices throughout North America, Europe, Asia, and Australia.

Contact
Kirsty Whitefield
Tel: 1-877-935-2323, x235
Email: kirsty.whitefield@opal-rt.com

RT-LAB and SignalWire are registered trademarks of Opal-RT Technologies Inc.
QNX is a registered trademark of QNX Software Systems
RedHawk is a registered trademark of Concurrent Computer Corp.
2004 Opal-RT Technologies Inc. All rights reserved.