Strategies for Energy-Efficient Resource Management of Hybrid Programming Models

Dong Li, Bronis R. De Supinski, Martin Schulz, Dimitrios S. Nikolopoulos, Kirk W. Cameron

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Many scientific applications are programmed using hybrid programming models that use both message passing and shared memory, due to the increasing prevalence of large-scale systems with multicore, multisocket nodes. Previous work has shown that energy efficiency can be improved using software-controlled execution schemes that consider both the programming model and the power-aware execution capabilities of the system. However, such approaches have focused on identifying optimal resource utilization for one programming model, either shared memory or message passing, in isolation. The potential solution space, thus the challenge, increases substantially when optimizing hybrid models since the possible resource configurations increase exponentially. Nonetheless, with the accelerating adoption of hybrid programming models, we increasingly need improved energy efficiency in hybrid parallel applications on large-scale systems. In this work, we present new software-controlled execution schemes that consider the effects of dynamic concurrency throttling (DCT) and dynamic voltage and frequency scaling (DVFS) in the context of hybrid programming models. Specifically, we present predictive models and novel algorithms based on statistical analysis that anticipate application power and time requirements under different concurrency and frequency configurations. We apply our models and methods to the NPB MZ benchmarks and selected applications from the ASC Sequoia codes. Overall, we achieve substantial energy savings (8.74 percent on average and up to 13.8 percent) with some performance gain (up to 7.5 percent) or negligible performance loss.
Original languageEnglish
Pages (from-to)144-157
Number of pages14
JournalIEEE Transactions on Parallel and Distributed Systems
Volume24
Issue number1
DOIs
Publication statusPublished - Jan 2013

Bibliographical note

Copyright 2013 Elsevier B.V., All rights reserved.

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