Performance prediction using simulation of large-scale interconnection networks in POSE

Terry L. Wilmarth, Gengbin Zheng, Eric J. Bohm, Yogesh Mehta, Nilesh Choudhury, Praveen Jagadishprasad, Laxmikant V Kale

Research output: Contribution to conferencePaper

Abstract

Parallel discrete event simulation (PDES) of models with fine-grained computation remains a challenging problem. We explore the usage of POSE, our Parallel Object-oriented Simulation Environment, for application performance prediction on large parallel machines such as BlueGene. This study involves the simulation of communication at the packet level through a detailed network model This presents an extremely fine-grained simulation: events correspond to the transmission and receipt of packets. Computation is minimal, communication dominates, and strong dependencies between events result in a low degree of parallelism. There is limited look-ahead capability since the outcome of many events is determined by the application whose performance the simulation is predicting. Thus conservative synchronization approaches are challenging for this type of problem. We present recent experiences and performance results for our network simulator and illustrate the utility of our simulator through prediction and validation studies for a molecular dynamics application.

Original languageEnglish (US)
Pages109-118
Number of pages10
DOIs
StatePublished - Oct 24 2005
EventWorkshop on Principles of Advanced and Distributed Simulation, PADS 2005 - Monterey, CA, United States
Duration: Jun 1 2005Jun 3 2005

Other

OtherWorkshop on Principles of Advanced and Distributed Simulation, PADS 2005
CountryUnited States
CityMonterey, CA
Period6/1/056/3/05

ASJC Scopus subject areas

  • Engineering(all)

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    Wilmarth, T. L., Zheng, G., Bohm, E. J., Mehta, Y., Choudhury, N., Jagadishprasad, P., & Kale, L. V. (2005). Performance prediction using simulation of large-scale interconnection networks in POSE. 109-118. Paper presented at Workshop on Principles of Advanced and Distributed Simulation, PADS 2005, Monterey, CA, United States. https://doi.org/10.1109/PADS.2005.20