3 documents found, page 1 of 1
Multi-agent Adaptive Architecture for Flexible Distributed Real-time Systems
Chniter, Hamza; Li, Yonghui; Khalgui, Mohamed; Koubaa, Anis; Li, Zhiwu; Jarray, FethiRecent critical embedded systems become more and more complex and usually react to their environment that requires to amend their behaviors by applying run-time reconfiguration scenarios. A system is defined in this paper as a set of networked devices, where each of which has its own operating system, a processor to execute related periodic software tasks, and a local battery. A reconfiguration is any operation...
Modeling and Verification of Dynamic Command Scheduling for Real-Time Memory Co...
Li, Yonghui; Åkesson, Benny; Goossens, KeesIn modern multi-core systems with multiple real-time (RT) applications, memory traffic accessing the shared SDRAM is increasingly diverse, e.g., transactions have variable sizes. RT memory controllers with dynamic command scheduling can efficiently address the diversity by issuing appropriate commands subject to the SDRAM timing constraints. However, the scheduling dependencies between commands make it challeng...
Mode-Controlled Data-Flow Modeling of Real-Time Memory Controllers
Li, Yonghui; Salunkhe, Hrishikesh; Bastos, João; Moreira, Orlando; Åkesson, Benny; Goossens, KeesSDRAM is a shared resource in modern multi-core platforms executing multiple real-time (RT) streaming applications. It is crucial to analyze the minimum guaranteed SDRAM bandwidth to ensure that the requirements of the RT streaming applications are always satisfied. However, deriving the worst-case bandwidth (WCBW) is challenging because of the diverse memory traffic with variable transaction sizes. In fact, ex...