Introducing the Adaptive Energy Management Features of the Power7 Chip

Author

Floyd, Michael ; Allen-Ware, Malcolm ; Rajamani, Karthick ; Brock, Bishop ; Lefurgy, Charles ; Drake, Alan J. ; Pesantez, Lorena ; Gloekler, Tilman ; Tierno, Jose A. ; Bose, Pradip ; Buyuktosunoglu, Alper

Volume

31

Issue

2

fYear

2011

Firstpage

60

Lastpage

75

Abstract

Power7 implements several new adaptive power management techniques which, in concert with the EnergyScale firmware, let it proactively exploit variations in workload, environmental conditions, and overall system use to meet customer-directed power and performance goals. These innovative features include per-core frequency scaling with available autonomic frequency control, per-chip automated voltage slewing, power consumption estimation, and hardware instrumentation assist.

Keywords

power aware computing; EnergyScale firmware; adaptive energy management; autonomic frequency control; hardware instrumentation; perchip automated voltage slewing; percore frequency scaling; power consumption estimation; power management techniques; power7 chip; Frequency control; Hardware; Microcontrollers; Microprogramming; Temperature measurement; Temperature sensors; EnergyScale; Power7; energy efficiency; frequency scaling; hardware; performance; power management; voltage slewing;

fLanguage

English

Journal_Title

Micro, IEEE

Publisher

ieee

ISSN

0272-1732

Type

jour

DOI

10.1109/MM.2011.29

Filename

5751940