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Design and validation of a performance and power simulator for PowerPC systems

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5 Author(s)
H. Shafi ; IBM Research Division, Austin Research Laboratory, 11501 Burnet Road, Texas 78758, USA ; P. J. Bohrer ; J. Phelan ; C. A. Rusu
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This paper describes the design and validation of a performance and power simulator that is part of the Mambo simulation environment for PowerPC® systems. One of the most notable features of the simulator, designated as Tempo, is the incorporation of an event-driven power model. Tempo satisfies an important need for fast and accurate performance and power simulation tools at the system level. The power and performance predictions from the simulated model of a PowerPC 405GP (or simply 405GP) were validated against a 405GP-based evaluation board instrumented for power measurements using 42 application/dataset combinations from the EEMBC benchmark suite. The average performance and energy-prediction errors were 0.6% and ࢤ4.1%, respectively. In addition to describing Tempo, we show examples of how well it can predict the runtime power consumption of a 405GP microprocessor during application execution.

Note: The Institute of Electrical and Electronics Engineers, Incorporated is distributing this Article with permission of the International Business Machines Corporation (IBM) who is the exclusive owner. The recipient of this Article may not assign, sublicense, lease, rent or otherwise transfer, reproduce, prepare derivative works, publicly display or perform, or distribute the Article.  

Published in:

IBM Journal of Research and Development  (Volume:47 ,  Issue: 5.6 )