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Working Set Based Scheduling in Time Warp Simulations
Norfolk, Virginia March 26-March 28
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ANSS.2007.4540th Annual Simulation Symposium (ANS ...
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Malolan Chetlur, AT&T, USA
Philip A. Wilsey, Experimental Computing Laboratory, USA
This paper presents a new scheduling mechanism to choose and process the next input event from the event-set of simulation objects in a Logical Process (LP). Events are prioritized based on a simulation object?s working set. Working set of a simulation object is analogous to working set defined in virtual memory, and consists of input and output events referenced in the recent past (without time-faults). The simulation kernel exploits the causality framework to determine the working set size of a simulation object. In addition, the scheduler favors events that are within the estimated working set size. This working set based scheduling mechanism shows a performance improvement in the order or 10%-15%. This technique also improves the overall efficiency and memory utilization.
Citation:
Malolan Chetlur, Philip A. Wilsey, "Working Set Based Scheduling in Time Warp Simulations," anss, pp.221-230, 40th Annual Simulation Symposium (ANSS'07), 2007
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