NDLI: Experiences with a Lightweight Supercomputer Kernel: Lessons Learned from Blue Gene's CNK

Content Provider	IEEE Xplore Digital Library
Author	Giampapa, M. Gooding, T. Inglett, T. Wisniewski, R.W.
Copyright Year	2010
Abstract	The Petascale era has recently been ushered in and many researchers have already turned their attention to the challenges of exascale computing. To achieve petascale computing two broad approaches for kernels were taken, a lightweight approach embodied by IBM Blue Gene's CNK, and a more fullweight approach embodied by Cray's CNL. There are strengths and weaknesses to each approach. Examining the current generation can provide insight as to what mechanisms may be needed for the exascale generation. The contributions of this paper are the experiences we had with CNK on Blue Gene/P. We demonstrate it is possible to implement a small lightweight kernel that scales well but still provides a Linux environment and functionality desired by HPC programmers. Such an approach provides the values of reproducibility, low noise, high and stable performance, reliability, and ease of effectively exploiting unique hardware features. We describe the strengths and weaknesses of this approach.
Starting Page	1
Ending Page	10
File Size	626264
Page Count	10
File Format	PDF
ISBN	9781424475575
e-ISBN	9781424475599
e-ISBN	9781424475582
DOI	10.1109/SC.2010.22
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Linux Kernel Hardware Noise Libraries Supercomputers Cloning
Content Type	Text
Resource Type	Article

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