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Monitoring and Debugging Parallel Software with BCS-MPI on Large-Scale Clusters

8 years 8 months ago
Monitoring and Debugging Parallel Software with BCS-MPI on Large-Scale Clusters
Buffered CoScheduled (BCS) MPI is a novel implementation of MPI based on global synchronization of all system activities. BCS-MPI imposes a model where all processes and their communication are tightly scheduled at a very fine granularity. Thus, BCS-MPI provides a system that is much more controllable and deterministic. BCS-MPI leverages this regular behavior to provide a simple yet powerful monitoring and debugging subsystem that streamlines the analysis of parallel software. This subsystem, called Monitoring and Debugging System (MDS), provides exhaustive process and communication scheduling statistics. This paper covers in detail the design and implementation of the MDS subsystem, and demonstrates how the MDS can be used to monitor and debug not only parallel MPI applications but also the BCS-MPI runtime system itself. Additionally, we show that this functionality need not come at a significant performance loss.
Juan Fernández, Fabrizio Petrini, Eitan Fra
Added 25 Jun 2010
Updated 25 Jun 2010
Type Conference
Year 2005
Where IPPS
Authors Juan Fernández, Fabrizio Petrini, Eitan Frachtenberg
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