Multilayer Online-Monitoring for Hybrid DSM Systems on Top of PC Clusters with a SMiLE

  • Authors:
  • Wolfgang Karl;Martin Schulz;Jörg Trinitis

  • Affiliations:
  • -;-;-

  • Venue:
  • TOOLS '00 Proceedings of the 11th International Conference on Computer Performance Evaluation: Modelling Techniques and Tools
  • Year:
  • 2000

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Abstract

Cost-effective clusters built from commodity-off-the-shelf components and connected with high-speed interconnection fabrics, together with easy-to-use shared memory programming models, are creating an attractive platform for parallel programming. However, these kinds of architectures currently lack monitoring environments that allow the observation of performance data at various levels, detection of bottlenecks, and overall optimization of applications. This work presents a comprehensive approach attacking the problem by combining three basic building blocks: monitoring hardware for a stateof-the-art system area network (SCI), an innovative hybrid distributed shared memory system providing the base for any kind of shared memory programming models (SCI Virtual Memory or SCI-VM), and an extensible online monitoring system (OMIS/OCM). This forms the basis for an extensive tool environment on top of this emerging platform, which allows easy application porting, debugging, and performance tuning.