Toward an Architectural Treatment of Parameter VariationsReport
This paper develops a new model of parameter varia- tins for use in early-stage, pre-RTL architecture studies. It improves over prior models by extending the FMAX model to more faithfully model various microarchitecture struc- tures, especially SRAM, which is dominant in contempo- rary superscalar processors. It also incorporates optical phenomena, which show strong spatial correlation but nev- ertheless cannot be ignored for large dies. Finally, it incor- porates IR Vdd drop and temperature, and closes all these feedback loops to obtain converged estimates of frequency, leakage, voltage, and temperature. With this model, we ex- plore PVT limitations on multi-core integration and the dif- ficulties in obtaining matched cores.
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Numenay, Eric, Wei Huang, Mircea Stan, and Kevin Skadron. "Toward an Architectural Treatment of Parameter Variations." University of Virginia Dept. of Computer Science Tech Report (2005).
University of Virginia, Department of Computer Science