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Bandwidth-aware Memory Placement on Hybrid Memories targeting High Performance Computing Systems

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2019, 24(8), pp.1-8
  • DOI : 10.9708/jksci.2019.24.08.001
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science
  • Received : August 6, 2019
  • Accepted : August 26, 2019
  • Published : August 30, 2019

JONGMIN LEE 1

1원광대학교

Accredited

ABSTRACT

Modern computers provide tremendous computing capability and a large memory system. Hybrid memories consist of next generation memory devices and are adopted in high performance systems. However, the increased complexity of the microprocessor makes it difficult to operate the system effectively. In this paper, we propose a simple data migration method called Bandwidth-aware Data Migration (BDM) to efficiently use memory systems for high performance processors with hybrid memory. BDM monitors the status of applications running on the system using hardware performance monitoring tools and migrates the appropriate pages of selected applications to High Bandwidth Memory (HBM). BDM selects applications whose bandwidth usages are high and also evenly distributed among the threads. Experimental results show that BDM improves execution time by an average of 20% over baseline execution.

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