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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.
Several strategies can be used to parallelize VTK. We try to summarize those here :
* Execution Model
** Parallel pipeline branches : each independent branch can be executed simultaneously.
** Concurrent streaming of multiple pieces : several pieces can be streamed together in a pipeline, each one at a different stage of the pipeline.
** Apply a single algorithm concurrently to multiple blocs : if the algorithm treat each bloc independently, it could be applied to all blocs simultaneously.
* Intra-algorithm parallelism : many algorithms in VTK can be parallelized at a fine grain (per cell, point, row...) level.
* Execution Model :
** Claudio T. Silva et al. have been working on the [http://www. sci. utah.edu/ ~hvo/ papers/ pds.pdf HyperFlow] enhancement.
* Intra-algorithm :
** Imaging pipeline
** Ray casting algorithms
The proposed [[Task Stealing framework]] focuses primarily on the intra-algorithm parallelization, and could also be used by the execution model.
Latest revision as of 09:28, 12 October 2010
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