Design and implementation of a scalable membership service for supercomputer resiliency-aware runtime

  • Authors:
  • Yoav Tock;Benjamin Mandler;José Moreira;Terry Jones

  • Affiliations:
  • IBM Haifa Research Laboratory, Haifa, Israel;IBM Haifa Research Laboratory, Haifa, Israel;IBM T.J. Watson Research Center, Yorktown Heights, NY;Oak Ridge National Laboratory, Oak Ridge, TN

  • Venue:
  • Euro-Par'13 Proceedings of the 19th international conference on Parallel Processing
  • Year:
  • 2013

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Abstract

As HPC systems and applications get bigger and more complex, we are approaching an era in which resiliency and run-time elasticity concerns become paramount. We offer a building block for an alternative resiliency approach in which computations will be able to make progress while components fail, in addition to enabling a dynamic set of nodes throughout a computation lifetime. The core of our solution is a hierarchical scalable membership service providing eventual consistency semantics. An attribute replication service is used for hierarchy organization, and is exposed to external applications. Our solution is based on P2P technologies and provides resiliency and elastic runtime support at ultra large scales. Resulting middleware is general purpose while exploiting HPC platform unique features and architecture. We have implemented and tested this system on BlueGene/P with Linux, and using worst-case analysis, evaluated the service scalability as effective for up to 1M nodes.