Resource-Oriented Partitioning for Multiprocessor Systems with Shared Resources

Partitioning Real-Time Systems on Multiprocessors with Shared Resources

In this paper we propose a blocking-aware partitioning algorithm which allocates a task set on a multiprocessor (multi-core) platform in a way that the overall amount of blocking times of tasks are decreased. The algorithm reduces the total utilization which, in turn, has the potential to decrease the total number of required processors (cores). In this paper we evaluate our algorithm and compa...

Managing Shared Resources in Chip Multiprocessor Memory Systems

Chip Multiprocessors (CMPs) have become the architecture of choice for highperformance general-purpose processors. CMPs often share memory system units between processes. This may result in independent processes competing for memory bandwidth. Such competition can cause destructive interference which reduces performance predictability, decreases operating system scheduler efficiency and complic...

Robust Partitioned Scheduling for Static-Priority Real-Time Multiprocessor Systems with Shared Resources

We focus on the partitioned scheduling of sporadic real-time tasks with constrained deadlines. The scheduling policy on each processor is staticpriority. The considered tasks are not independent and the consistency of these shared data is ensured by a multiprocessor synchronization protocol. Considering these assumptions, we propose a partitioned scheduling algorithm which tends to maximize the...

Modeling Shared-Memory Multiprocessor Systems with AADL

Multiprocessor chips are now commonly supplied by IC manufacturers. Real-time applications based on this kind of execution platforms are difficult to develop for many reasons: complexity, design space, unpredictability, ... The allocation of the multiple hardware resources to the software entities could have a great impact on the final result. Then, if the interest to represent the set of hardw...

Estimated Returns to Scale with Interval Data in Parallel Manufacturing Systems with Shared Resources