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VECPAR
2004
Springer

PerWiz: A What-If Prediction Tool for Tuning Message Passing Programs

10 years 4 months ago
PerWiz: A What-If Prediction Tool for Tuning Message Passing Programs
Abstract. This paper presents PerWiz, a performance prediction tool for improving the performance of message passing programs. PerWiz focuses on locating where a significant improvement can be achieved. To locate this, PerWiz performs a post-mortem analysis based on a realistic parallel computational model, LogGPS, so that predicts what performance will be achieved if the programs are modified according to typical tuning techniques, such as load balancing for a better workload distribution and message scheduling for a shorter waiting time. We also show two case studies where PerWiz played an important role in improving the performance of regular applications. Our results indicate that PerWiz is useful for application developers to assess the potential reduction in execution time that will be derived from program modification.
Fumihiko Ino, Yuki Kanbe, Masao Okita, Kenichi Hag
Added 02 Jul 2010
Updated 02 Jul 2010
Type Conference
Year 2004
Where VECPAR
Authors Fumihiko Ino, Yuki Kanbe, Masao Okita, Kenichi Hagihara
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