Wattch: a framework for architectural-level power analysis and optimizations
Proceedings of the 27th annual international symposium on Computer architecture
Application-directed voltage scaling
IEEE Transactions on Very Large Scale Integration (VLSI) Systems - Special section on low power
Cycle-accurate power analysis for multiprocessor systems-on-a-chip
Proceedings of the 14th ACM Great Lakes symposium on VLSI
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Multiprocessor systems offer superior performance and potentially better energy-reduction than single-processor systems. It all depends however, on how well the application can be mapped onto the architecture. Indeed, a careful tradeoff of energy and performance requires a thorough understanding of the energy consumption pattern of the application across the architecture. We develop a simulation platform, MultiPo-Sim, which returns the cycle-accurate performance and energy consumption of a multiprocessor system, for both hardware components and software primitives. On the hardware level, energy scaling techniques can be modeled and each processing core can operate at different energy modes. MultiPo-Sim achieves 331K cycles per second simulation speed for a four-processor system on a 3GHz, 512MByte Fedora-2 PC. On the software level, data parallelizing and task parallelizing are two common models of multi-thread programming. By using MultiPo-Sim, we show that they show different energy and performance characteristics when mapping onto a multi-processor system.