Mambo: a full system simulator for the PowerPC architecture
ACM SIGMETRICS Performance Evaluation Review - Special issue on tools for computer architecture research
Automatic performance model construction for the fast software exploration of new hardware designs
CASES '06 Proceedings of the 2006 international conference on Compilers, architecture and synthesis for embedded systems
Parallelization of IBM mambo system simulator in functional modes
ACM SIGOPS Operating Systems Review
IBM Journal of Research and Development
Fast full-system execution-driven performance simulator for blue gene/q
Euro-Par'13 Proceedings of the 19th international conference on Parallel Processing
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The design and development of a new computer system is a lengthy process, with a considerable amount of time elapsed between the beginning of development and first hardware availability. Hence, fast and reasonably accurate simulation of processor architecture has become critical as an enabling mechanism for software engineers to develop and tune system software and applications. In this paper, we present the time-stamped timing model extensions to the BlueGene/L functional simulator. These extensions were implemented to create a pseudo cycle-accurate simulator capable of providing tracing capabilities for detection of bottlenecks and for performance tuning of applications, before the actual hardware became available. Our validation tests, using the DAXPY kernel and the serial version of the NAS benchmarks, show that our pseudo cycle-accurate simulator provides timing information within 15% of the times measured using the actual BlueGene/L hardware. In addition, we present a couple of case studies, which describes how this simulator can be used for identification of performance bottlenecks and for application tuning.