Relaxing Causal Constraints in PDES

9 years 3 months ago
Relaxing Causal Constraints in PDES
One of the major overheads that prohibits the wide spread deployment of parallel discrete event simulation PDES is the need to synchronize the distributed processes in the simulation. Considerable investigations have been conducted to analyze and optimize the two widely used synchronization strategies, namely the conservative and the optimistic simulation paradigms. However, little attention has been focussed on the de nition and strictness of causality. Does causality need to be preserved in all types of simulations? Previously, we had suggested an answer to this question. We had argued that signi cant performance gains can be achieved by reconsidering this de nition to decide if the parallel simulation really needs to subscribe to the preservation of causality. In this paper, we investigate this issue even more closely. An in depth analysis using several example simulation models is presented in this paper. In addition, a comparative analysis between unsynchronized and Time Warp sim...
Narayanan V. Thondugulam, Dhananjai Madhava Rao, R
Added 03 Aug 2010
Updated 03 Aug 2010
Type Conference
Year 1999
Where IPPS
Authors Narayanan V. Thondugulam, Dhananjai Madhava Rao, Radharamanan Radhakrishnan, Philip A. Wilsey
Comments (0)