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| ==Purpose==
| | This page has been moved [http://www.vtk.org/Wiki/ARB/Topics/MultiThreading here]. |
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| VTK has adopted a MPI based strategy for parallelization. New strategies are currently designed to use new architectures like multi-core or hybrid systems. The aim of this page is to provide an overview of the current efforts.
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| ==Strategies==
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| Several strategies can be used to parallelize VTK. We try to summarize those here :
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| * Execution Model
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| ** Parallel pipeline branches : each independent branch can be executed simultaneously.
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| ** Concurrent streaming of multiple pieces : several pieces can be streamed together in a pipeline, each one at a different stage of the pipeline.
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| ** Apply a single algorithm concurrently to multiple blocs : if the algorithm treat each bloc independently, it could be applied to all blocs simultaneously.
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| * Intra-algorithm parallelism : many algorithms in VTK can be parallelized at a fine grain (per cell, point, row...) level.
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| ==Current Efforts==
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| * Execution Model :
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| ** Claudio T. Silva et al. have been working on the [http://www.sci.utah.edu/~hvo/papers/pds.pdf HyperFlow] enhancement.
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| * Intra-algorithm :
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| ** Imaging pipeline
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| ** Ray casting algorithms
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| The proposed [[Task Stealing framework]] focuses primarily on the intra-algorithm parallelization, and could also be used by the execution model.
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Latest revision as of 14:28, 12 October 2010
This page has been moved here.
