PSI-NSIM: A Parallel Interconnection Network Simulator for Performance Analysis of Large-scale Parallel Systems

This paper presents an interconnection network simulator, PSI-NSIM, toward designing and performance analysis of large-scale parallel system. PSI-NSIM simulates desired interconnection network base on a configuration file which specifies specification of target network and a communication profile generated from an execution of application. Furthermore, this simulator provides not only various information for performance evaluation but estimates entire performance of system with fast and good accuracy. Then information for performance analysis and visualizing of application execution is also provided. In this paper, implementation of PSI-NSIM and results of performance evaluation of existing cluster system are reported.