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Run-time spatial resource management in heterogeneous MPSoCs

Braak, Timon D. ter (2009) Run-time spatial resource management in heterogeneous MPSoCs.

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Abstract:This thesis concerns the arbitration between multiple applications over the resources available in a multi-processor system. Sharing resources can have negative effects on the performance of an application, due to scheduling and inter-task communication. Targetting the domain of streaming applications, many applications require a guaranteed performance for correct behavior. Therefore, we use dataflow models that allow analysis of an application, before it is admitted to the system. Larger systems introduce a spatial factor into an already complex problem. In this thesis, we propose multiple heuristics to tackle the resource management problem. These heuristics use cost functions to steer the outcome and the optimization direction. Our approach is implemented in a Linux kernel. On lowend ARM processors, a single resource allocation attempt takes tens of milliseconds. Due to the many factors that play a role, we experienced a large variability between admission and failure rates. Opposed to design-time generated use cases, our approach makes flexible and fault tolerant multi-processor systems available, with a guaranteed performance for critical applications.
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:54 computer science
Programme:Computer Science MSc (60300)
Link to this item:http://purl.utwente.nl/essays/59188
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