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Dryad: Distributed Data-Parallel Programs From Sequential Building Blocks

Overview Dryad is a general-purpose distributed execution engine for coarse-grain data-parallel applications. A Dryad application combines computational "Vertices" with communication "Channels" to form a dataflow graph. Dryad runs the application by executing the vertices of this graph on a set of available computers, communicating as appropriate through files, TCP pipes, and shared-memory FIFOs. The vertices provided by the application developer are quite simple and are usually written as sequential programs with no thread creation or locking. Concurrency arises from Dryad scheduling vertices to run simultaneously on multiple computers, or on multiple CPU cores within a computer. The application can discover the size and placement of data at run time, and modify the graph as the computation progresses to make efficient use of the available resources.

Further White Paper Details
Publisher	Association for Computing Machinery	File Format	PDF
Date Published	March 2007
Format	White Papers
Topics	Knowledge and Data Management, Software Engineering

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