Sciweavers

MICRO
2003
IEEE

Single-ISA Heterogeneous Multi-Core Architectures: The Potential for Processor Power Reduction

14 years 20 days ago
Single-ISA Heterogeneous Multi-Core Architectures: The Potential for Processor Power Reduction
This paper proposes and evaluates single-ISA heterogeneous multi-core architectures as a mechanism to reduce processor power dissipation. Our design incorporates heterogeneous cores representing different points in the power/performance design space; during an application’s execution, system software dynamically chooses the most appropriate core to meet specific performance and power requirements. Our evaluation of this architecture shows significant energy benefits. For an objective function that optimizes for energy efficiency with a tight performance threshold, for 14 SPEC benchmarks, our results indicate a 39% average energy reduction while only sacrificing 3% in performance. An objective function that optimizes for energy-delay with looser performance bounds achieves, on average, nearly a factor of three improvement in energy-delay product while sacrificing only 22% in performance. Energy savings are substantially more than chip-wide voltage/frequency scaling.
Rakesh Kumar, Keith I. Farkas, Norman P. Jouppi, P
Added 05 Jul 2010
Updated 05 Jul 2010
Type Conference
Year 2003
Where MICRO
Authors Rakesh Kumar, Keith I. Farkas, Norman P. Jouppi, Parthasarathy Ranganathan, Dean M. Tullsen
Comments (0)