Event Delivery using Prediction for Faster Parallel SystemC Simulation

2020 
Out-of-order Parallel Discrete Event Simulation (OoO PDES) is an advanced simulation approach that efficiently verifies and validates SystemC models. To preserve the simulation semantics, OoO PDES performs a conservative event delivery strategy which often postpones the execution of waiting threads due to unknown future behaviors of the model. In this paper, based on predicted behaviors of threads, we introduce a novel event delivery strategy that allows waiting threads to resume execution earlier, resulting in significantly increased simulation speed. Experimental results show that the proposed approach increases the OoO PDES simulation speed by up to 4.9x compared to the original one on a 4-core machine.
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