Active Guardband Management in Power7+ to Save Energy and Maintain Reliability

Microprocessor voltage levels traditionally include substantial margin to ensure reliable operation despite variations in manufacturing, workload, and environmental parameters. This margin allows the microprocessor to function correctly during worst-case conditions, but during typical operation it i...

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Veröffentlicht in:	IEEE MICRO 2013-07, Vol.33 (4), p.35-45
Hauptverfasser:	Lefurgy, C. R., Drake, A. J., Floyd, M. S., Allen-Ware, M. S., Brock, B., Tierno, J. A., Carter, J. B., Berry, R. W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Circuits critical path design digital phase-lock loop Electric currents Energy consumption energy efficient experimentation Frequency control Frequency measurement Manufacturing measurement Microprocessors performance and reliability Power7 Program processors reliability timing margin Voltage control Voltage measurement voltage speculation
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