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|Title:||Energy-aware communication and remapping of tasks for reliable multimedia multiprocessor systems|
Synchronous data flow graph
|Citation:||Das, A., Kumar, A., Veeravalli, B. (2012). Energy-aware communication and remapping of tasks for reliable multimedia multiprocessor systems. Proceedings of the International Conference on Parallel and Distributed Systems - ICPADS : 564-571. ScholarBank@NUS Repository. https://doi.org/10.1109/ICPADS.2012.82|
|Abstract:||Shrinking transistor geometries, aggressive voltage scaling and higher operating frequencies have negatively impacted the dependability of embedded multiprocessor systems-on-chip (MPSoCs). Fault-tolerance and energy efficiency are the two most desired features of modernday MPSoCs. For most of the multimedia applications, task communication energy constitutes more than 40% of the overall application energy. In this paper, an integer linear programming (ILP) based approach is proposed to reduce the communication energy and fault-tolerant migration overhead of throughput-constrained multimedia applications modeled using synchronous data flow graphs (SDFGs). The ILP is solved at compile-time for all fault-scenarios to generate task-core mappings satisfying an application throughput requirement. These mappings are stored in a table which is looked up at run-time as and when faults occur. Experiments conducted with real and synthetic applications demonstrate that the proposed technique reduces communication energy by an average 40% and migration overhead by 33% as compared to the existing fault-tolerant techniques. © 2012 IEEE.|
|Source Title:||Proceedings of the International Conference on Parallel and Distributed Systems - ICPADS|
|Appears in Collections:||Staff Publications|
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