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Making HDF Easier to Use: HDF Tools from NCSA

Making HDF Easier to Use: HDF Tools from NCSA. Pedro Nunes, Robert E. McGrath, Mike Folk National Center for Supercomputing Applications University of Illinois, Urbana Champaign. Goals. Make HDF easier to use Support NASA requirements. Impacts.

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Making HDF Easier to Use: HDF Tools from NCSA

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  1. Making HDF Easier to Use: HDF Tools from NCSA Pedro Nunes, Robert E. McGrath, Mike Folk National Center for Supercomputing Applications University of Illinois, Urbana Champaign

  2. Goals • Make HDF easier to use • Support NASA requirements

  3. Impacts • New and improved services at NASA DAACs* and SIPs • Improved testing and QA at NCSA • Wider use of compression and other advanced features 1* E.g., C. C. Lynnes, S. Berrick, A. Gopalan, X. Hua, S. Shen, P. Smith, K-Y. Yang, K. Wheeler, C. Curry, “Application of Bayesian Classification to Content-based Data Management”, Earth Science Technology Conference 2004, Palo Alto, June 22-24, 2004. http://www.esto.nasa.gov/conferences/estc2004/papers/b8p4.pdf.

  4. HDF4 Utilities: hdiff and hrepack hdiff -- command line tool that compares two HDF4 files and reports differences between them. hrepack -- command line tool that performs a logical copy of an input HDF4 file to an output HDF4 file.

  5. HDF5 Utilities h5diff– command line tool that compares two HDF5 files and reports differences between them. h5repack -- command line tool that performs a logical copy of an input HDF5 file to an output HDF5 file. h5dump– new options to display more information about objects in the file, including • Compression and other storage parameters • Stored size of the data. h5jam– new utility to add, remove user block to HDF5 file

  6. Acknowledgements NASA grants NAG 5-2040 and NCC5-599. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Aeronautics and Space Administration. Other support provided by NCSA and other sponsors and agencies.

  7. For more information Information and Download from NCSA: http://hdf.ncsa.uiuc.edu HDF Help Desk: hdfhelp@ncsa.uiuc.edu

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