Characterizing the Performance of “Big Memory” on Blue Gene Linux

  title={Characterizing the Performance of “Big Memory” on Blue Gene Linux},
  author={Kazutomo Yoshii and Kamil Iskra and Harish Gapanati Naik and Peter H. Beckman and P. Chris Broekema},
  journal={2009 International Conference on Parallel Processing Workshops},
Efficient use of Linux for high-performance applications on Blue Gene/P (BG/P) compute nodes is challenging because of severe performance hits resulting from translation lookaside buffer (TLB) misses and a hard-to-program torus network DMA controller. To address these difficulties, we present the design and implementation of “Big Memory”— an alternative, transparent memory space for computational processes. Big Memory uses extremely large memory pages available on PowerPC CPUs to create a TLB… CONTINUE READING
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