WCET Analysis of a Parallel 3D Multigrid Solver Executed on the MERASA Multi-Core

To meet performance requirements as well as constraints on cost and power consumption, future embedded systems will be designed with multi-core processors. However, the question of timing analysability is raised with these architectures. In the MERASA project, a WCET-aware multicore processor has been designed with the appropriate system software. They both guarantee that the WCET of tasks running on different cores can be safely analyzed since their possible interactions can be bounded. Nevertheless, computing the WCET of a parallel application is still not straightforward and a high-level preliminary analysis of the communication and synchronization patterns must be performed. In this paper, we report on our experience in evaluating the WCET of a parallel 3D multigrid solver code and we propose lines for further research on this topic. Digital Object Identifier 10.4230/OASIcs.WCET.2010.90

• Type: Journal
• Year: 2010
• Where: WCET
• Authors: Christine Rochange, Armelle Bonenfant, Pascal Sainrat, Mike Gerdes, Julian Wolf, Theo Ungerer, Zlatko Petrov, Frantisek Mikulu
• Keywords: Digital Object Identifier, Future Embedded Systems, Software Engineering, WCET 2010, WCET-aware Multicore Processor