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Can Manycores Support the Memory Requirements of Scientific Applications?

  • Milan Pavlovic
  • Yoav Etsion
  • Alex Ramirez
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6161)

Abstract

Manycores are very effective in scaling parallel computational performance. However, it is not clear if current memory technologies can scale to support such highly parallel processors.

In this paper, we examine the memory bandwidth and footprint required by a number of high-performance scientific applications. We find such applications require a per-core memory bandwidth of ~ 300MB/s, and have a memory footprint of some 300MB per-core.

When comparing these requirements with the limitations of state-of-the-art DRAM technology, we project that in the scientific domain, current memory technologies will likely scale well to support more than ~ 100 cores on a single chip, but may become a performance bottleneck for manycores consisting of more than 200 cores.

Keywords

Memory Access Parallel Application Memory Bandwidth Single Chip Spectralelement Method 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Milan Pavlovic
    • 1
  • Yoav Etsion
    • 1
  • Alex Ramirez
    • 1
    • 2
  1. 1.Barcelona Supercomputing Center (BSC-CNS)Spain
  2. 2.Universitat Politècnica de Catalunya (UPC)Spain

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