Maximizing efficiency in modern vehicles: unlocking the power of AUTOSAR multicore distribution

As vehicles evolve into complex, software-defined systems, performance is no longer solely determined by hardware. Significant efficiency gains can also result from smart software distribution across multicore processors – a task requiring technical insight and a practical strategy.

ETAS addresses this challenge with RTA-CAR, its AUTOSAR Classic solution. RTA-CAR enables automotive developers to fully exploit multicore capabilities by resolving resource conflicts, thereby ensuring real-time performance.

Overcoming the challenges of multicore distribution
Multicore systems are complex by nature. Significant challenges include communication between cores, context switches, shared resources, and the integration of legacy systems. Efficient multicore distribution requires an in-depth understanding of the underlying architecture and a customized software design.

Advanced techniques such as runtime analysis, modular software architecture, lock-free communication, and optimized memory layout are crucial. ETAS's Cross-Core Complex Device Driver (XCoreCDD), for example, enables lock-free communication between cores, significantly reducing latency and increasing performance.

From theory to practice: real-world implementation
ETAS has successfully applied optimization techniques in a variety of customer projects, including balancing CPU load between cores, reducing runtime peaks in a multicore brake ECU, and building a new five-core gateway architecture. These projects have proven that smart software distribution leads to measurable performance gains while revealing the trade-offs involved in real-world implementation.

Shaping the future of software-defined vehicles
Efficient multicore distribution is essential for tomorrow’s vehicle systems, and a key enabler for future developments such as autonomous driving and connected mobility. Thus, ETAS continuously enhances its AUTOSAR base software with features like configurable lock editors and extended support for master/satellite architectures – helping OEMs and suppliers meet increasing demands with precision and confidence.

For further details and in-depth insights, please refer to the full article. (Note: article available in German only)