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HDF5 collective chunk IO

HDF5 collective chunk IO. A Working Report. Motivation for this project. Found extremely bad performance of parallel HDF5 when implementing WRF-Parallel HDF5 IO module with chunking storage. Found that parallel HDF5 does not support MPI-IO collective write and read.

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567 views • 33 slides

Parallel I/O Performance Study and Optimizations with HDF5, A Scientific Data Package

Parallel I/O Performance Study and Optimizations with HDF5, A Scientific Data Package. Christian Chilan, Kent Yang, Albert Cheng, Quincey Koziol, Leon Arber National Center for Supercomputing Applications University of Illinois, Urbana-Champaign. Outline.

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471 views • 22 slides

Collective Chunk IO support inside HDF5

Collective Chunk IO support inside HDF5. Outline. Background Previous work review Unsolved issues in the previous work Solutions Discussions: APIs to be added Future work. Software Stack for PHDF5 Application. Previous collective IO support inside HDF5.

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356 views • 18 slides

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