SC13 Home > SC13 Schedule > SC13 Presentation - Coordinated Energy Management in Heterogeneous Processors

SCHEDULE: NOV 16-22, 2013

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Coordinated Energy Management in Heterogeneous Processors

SESSION: Energy Management

EVENT TYPE: Papers, Awards, Best Paper Finalists

TIME: 2:00PM - 2:30PM

SESSION CHAIR: Taisuke Boku

AUTHOR(S):Indrani Paul, Vignesh Ravi, Srilatha Manne, Manish Arora, Sudhakar Yalamanchili

ROOM:401/402/403

ABSTRACT:
This paper examines energy management in a heterogeneous processor consisting of an integrated CPU-GPU for high-performance computing (HPC) applications. Energy management for HPC applications is challenged by their uncompromising performance requirements and complicated by the need for coordinating energy management across distinct core types a new and less understood problem. We examine the intra-node CPU-GPU frequency sensitivity of HPC applications on tightly coupled CPU-GPU architectures as the first step in understanding power and performance optimization for a heterogeneous multi-node HPC system. The insights from this analysis form the basis of a coordinated energy management scheme, called DynaCo, for integrated CPU-GPU architectures. We implement DynaCo on a modern heterogeneous processor and compare its performance to a state-of-the-art power- and performance-management algorithm. DynaCo improves measured average energy-delay squared (ED^2) product by up to 30% with less than 2% average performance loss across several exascale and other HPC workloads.

Chair/Author Details:

Taisuke Boku (Chair) - University of Tsukuba

Indrani Paul - Advanced Micro Devices, Inc. and Georgia Institute of Technology

Vignesh Ravi - Advanced Micro Devices, Inc.

Srilatha Manne - Advanced Micro Devices, Inc.

Manish Arora - Advanced Micro Devices, Inc. and University of California, San Diego

Sudhakar Yalamanchili - Georgia Institute of Technology

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The full paper can be found in the ACM Digital Library