Towards a Threads-Based Parallel Direct Execution Simulator

Authors:
Phillip M. Dickens;Matthew Haines;Piyush Mehrotra;David Nicol
Affiliations:
-;-;-;-
Venue:
HICSS '96 Proceedings of the 29th Hawaii International Conference on System Sciences Volume 1: Software Technology and Architecture
Year:
1996

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Abstract

Parallel direct execution simulation is an important tool for performance and scalability analysis of large message passing parallel programs executing on top of a presumed virtual computer. However, detailed simulation of message-passing codes requires a great deal of computation. We are therefore interested in pursuing implementation techniques which can decrease this cost. One idea is to implement the application virtual processes as lightweight threads rather than traditional Unix processes, reducing both on-processor communication costs and context-switching costs. In this paper we describe an initial implementation of a thread-based parallel direct execution simulator. We discuss the advantages of such an approach and present preliminary results.