A segment-aware multi-core scheduler for system C PDES
2016
The SystemC IEEE standard is widely used for system design. While the sequential reference simulator is based on Discrete Event Simulation (DES), Parallel DES (PDES) approaches have been proposed for multi-core platforms. This paper proposes a dynamic load-profiling and segment-aware scheduling algorithm with optimized thread dispatching to maximize parallel SystemC simulation speed, which generally can be applied to all work-sharing PDES approaches. Based on a compile-time generated Segment Graph (SG), our scheduler can accurately predict the run time of the thread segments ahead and thus make better dispatching decisions. In the systematic evaluation, our segment-aware scheduler consistently shows a significant performance gain on top of the order-of-magnitude speedup of PDES, when compared with the previous scheduling policies.
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