WCET-Aware Dynamic Code Management on Scratchpads for Software-Managed Multicores

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Provided by: Institute of Electrical & Electronic Engineers
Topic: Hardware
Format: PDF
Software Managed Multicore (SMM) architectures have advantageous scalability, power efficiency, and predictability characteristics, making SMM particularly promising for real-time systems. In SMM architectures, each core can only access its ScratchPad Memory (SPM); any access to main memory is done explicitly by DMA instructions. As a consequence, dynamic code management techniques are essential for loading program code from the main memory to SPM. Current state-of-the-art dynamic code management techniques for SMM architectures are, however, optimized for average-case execution time, not Worst-Case Execution Time (WCET), which is vital for hard real-time systems.
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