Portable, scalable, per-core power estimation for intelligent resource management
Paper i proceeding, 2010

Performance, power, and temperature are now all first-order design constraints. Balancing power efficiency, thermal constraints, and performance requires some means to convey data about real-time power consumption and temperature to intelligent resource managers. Resource managers can use this information to meet performance goals, maintain power budgets, and obey thermal constraints. Unfortunately, obtaining the required machine introspection is challenging. Most current chips provide no support for per-core power monitoring, and when support exists, it is not exposed to software. We present a methodology for deriving per-core power models using sampled performance counter values and temperature sensor readings. We develop application-independent models for four different (four- to eight-core) platforms, validate their accuracy, and show how they can be used to guide scheduling decisions in power-aware resource managers. Model overhead is negligible, and estimations exhibit 1.1%-5.2% per-suite median error on the NAS, SPEC OMP, and SPEC 2006 benchmarks (and 1.2%-4.4% overall).

application-independent models

intelligent resource management

chip multiprocessor systems

power efficiency

per-core power estimation

Författare

Bhavishya Goel

Chalmers, Data- och informationsteknik, Datorteknik

Sally A McKee

Chalmers, Data- och informationsteknik, Datorteknik

Roberto Gioiosa

Centro Nacional de Supercomputacion

Karan Singh

Cornell University

Major Bhadauria

Cornell University

Marco Cesati

Universita degli Studi di Roma Tor Vergata

International Green Computing Conference, 2010, Chicago, USA

135-146

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Datorsystem

DOI

10.1109/GREENCOMP.2010.5598313

ISBN

978-1-4244-7612-1