4.0 Article

Energy conscious scheduling with controlled threshold for precedence-constrained tasks on heterogeneous clusters

Journal

CONCURRENT ENGINEERING-RESEARCH AND APPLICATIONS
Volume 25, Issue 3, Pages 276-286

Publisher

SAGE PUBLICATIONS LTD
DOI: 10.1177/1063293X16679001

Keywords

heterogeneous computing; energy conscious scheduling; dynamic voltage scaling; duplication-based scheduling; power consumption

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Efficient task scheduling of concurrent tasks is one of the primary requirements for high-performance computing platforms. Recent advances in high-performance computing have resulted in widespread performance improvement though at the cost of increased energy consumption and other system resources. In this article, an energy conscious scheduling algorithm with controlled threshold has been developed for precedence-constrained tasks on heterogeneous cluster, which aims at lower makespan along with reduced energy consumption. Energy conscious scheduling with controlled threshold algorithm combines the benefits of dynamic voltage scaling with controlled threshold-based duplication strategy to achieve its objectives. Effectiveness of the proposed algorithm is analyzed in comparison with available duplication- and non-duplication-based scheduling algorithms (with and without dynamic voltage scaling approach) to ascertain its performance and energy consumption. Exhaustive simulation results on random and real-world graphs demonstrate that energy conscious scheduling algorithm with controlled threshold has the potential to reduce energy consumption and makespan.

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