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Community Grids Laboratory

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Presentation on theme: "Community Grids Laboratory"— Presentation transcript:

1 Community Grids Laboratory
contains a set of 4 parallel computing lectures given by Fox at Microsoft Research February 26 to March is a tagged collection of multicore links We analyzed Microsoft CCR which supports an exchange of messages between threads using named ports and a service architecture DSS built on CCR for Robotics applications DSS gives on multicore systems 40 microsecond latency for 2-way messages and CCR a few microsecond latency for MPI style communication This package is attractive for a broad class of applications Looking at machine learning and computer chess applications

2 Summary of CCR Stage Overheads for Intel 4-core 2-processor Machine
These are stage switching overheads in microseconds for a set of runs with different levels of parallelism and different message patterns –each stage takes about 30 microseconds. 2-core 2-processor Xeon overheads in parentheses. We also benchmarked 2-core 2-processor AMD machine These measurements are equivalent to MPI latencies Match uses a number of threads = number of parallel computations Default uses 8 threads


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