May 10, 2021 zlib-ng recently had a stable release 2.0.2. Zlib-ng standalone benchmarks indicate up to multiple times faster than zlib on write and 10’s of percent faster on read. I haven’t benchmarked with HDF5, but I noticed it was simple to build HDF5 with zlib-ng. Zlib-ng may be of interest to HDF5 community as original zlib has last release in 2017, and zlib-ng incorporates improvements from some. The following tar files have been placed on the download site. Z hdf-4.2.10.tar.gz zlib-1.2.8.tar.gz jpegsrc.v6b.tar.gz HDF-EOSREF.pdf HDF-EOSUG.pdf. The HDF Group is a not-for-profit corporation with the mission of sustaining the HDF technologies and supporting HDF user communities worldwide with production-quality software and services.

Feb 03, 2019 As you can see above, to link HDF5 under Visual Studio, I needed Zlib, Szip (that I had to enter an absolute path to it, I don't like that), HDF5 library and the HDF5 High Level (Lite) library. These libraries are located under C: Program Files HDFGroup HDF5 1.10.1 lib. Before attempting to open an RIS file, you'll need to determine what kind of file you are dealing with and whether it is even possible to open or view the file format. Answer: Files which are given the.RIS extension are known as Hdf Zlib files, however other file types may also use this extension.

Hierarchical data format (HDF5) for Modflow, Modpath and ZoneBudget

Abstract

More and more spatially detailed time dependent groundwater models are used and hence input files for models like Modflow (USGS) are becoming larger and larger. These input files are in ASCII format and contain datasets with values for each cell, changing often for each stress period. To diminish the problem of huge ASCII files, the datasets of the input files can be stored in an HDF5 file (Hierarchical data format). HDF5 is a data model, library and file format designed by HDFgroup for storing and managing data, flexible and efficient input and output and high volume and complex data. The file has a binary format and can be compressed with different kinds of compression methods. An HDF5 file consists among others of groups and datasets, referencing a dataset in the HDF5 file is similar to referencing a file in a folder of a file system. The contents of an HDF5 file can be viewed with HDFview, a Java-based viewer. HDF5 files can be constructed manually with the help of HDFview, or with the help of programming languages like C, C++, Matlab, Fortran or Python. The goal of this contribution is to show how HDF can improve data management of Modflow. A similar HDF5 link to Modflow has been implemented in the interface Groundwater Modeling System. Modflow has been extended to be able to read datasets from the ASCII input files which contain a reference to an HDF5 file for every real 1 or 2-dimensional dataset, every 2-dimensional integer dataset and the stress lists described in the Modflow user manual as U1DREL, U2DREL, U2DINT and ULSTRD. Two other programs from USGS, Modpath and Zonebudget, are also using partly the same input files as Modflow, and have been extended to be able to read the requested datasets from the HDF5 file. The total Modflow input file size, i.e. converted ASCII files and HDF5 file, will be decimated compared to the original size. Partly this is due to 'zlib' compression, 'zlib' is a free lossless data compression library. Due to faster reading of the HDF5 data compared to the original ASCII data model the Modflow, Modpath and ZoneBudget run time decreases.

Publication:

Pub Date:

April 2012

Bibcode:

2012EGUGA..14.8028C

A CTest script and platform configuration file can be used to simplify buildingwith CMake. The script below will build HDF4 with SZIP, ZLIB, and the JPEG externallibraries.

Preconditions:

• CMakeMUST be installed. The minimum CMakeversion supported is 3.2.2

• Blank spaces MUST NOT be used in directory path names as this will cause the buildto fail.

• (Windows) NSIS or WiX should be installed in order to create an install image with CPack. NSIS will create a .exe installer. WiX will create a .msi installer.

  Visual Studio Express users will not be able to package HDF into an install image executable. Turn off packaging by doing the following:

  • Edit HDF4options.cmake.
  • Add the line: set(ADD_BUILD_OPTIONS '${ADD_BUILD_OPTIONS} –DNO_LOCAL_PACKAGE:BOOL=ON')
  • Uncomment the line: set(ADD_BUILD_OPTIONS '${ADD_BUILD_OPTIONS} -DHDF4_NO_PACKAGES:BOOL=ON')
  • Comment out the line: set(ADD_BUILD_OPTIONS '${ADD_BUILD_OPTIONS} -DHDF4_PACKAGE_EXTLIBS:BOOL=ON')

Build Instructions

Please follow the instructions below for building.

• Review the preconditions to be sure all needed software is on your machine.

• Create a working directory.

• Download the appropriate file for your platform to your working directory. Uncompress it. It will contain a CMake-hdf-4.2.13 directory.

  Software	Comments
  Windows	Contains files to build HDF4 with CMake on Windows
  Unix	Contains files to build HDF4 with CMake on Unix

  MD5 checksums for the source code distributions: [ md5 ]

  From the command line, go into the CMake-hdf-4.2.13 directory, which contains: PLEASE NOTE that the HDF4options.cmake file is provided to enable users to easily change build options without modifying the CMake build files.

• Execute the batch file or shell script containing the ctest command for your platform. Build scripts are provided for Unix, VS 2015, VS 2013, and VS 2012. (See Troubleshooting if you do not see your platform).

  Example build files are shown below:

  Platform	Batch File / Shell Script	ctest command
  Windows 64-bit VS 2015	build-VS2015-64.bat	ctest -S HDF4config.cmake,BUILD_GENERATOR=VS201564 -C Release -V -O hdf4.log
  Windows 32-bit VS 2015	build-VS2015-32.bat	ctest -S HDF4config.cmake,BUILD_GENERATOR=VS2015 -C Release -V -O hdf4.log
  Unix	build-unix.sh	ctest -S HDF4config.cmake,BUILD_GENERATOR=Unix -C Release -V -O hdf4.log

  Where the ctest command is using these options:

  • The -S option uses the script version of ctest.
  • The -C option specifies the build configuration which matches CTEST_BUILD_CONFIGURATION in the configuration file.
  • The -V option indicates verbose. -VV option indicates more verbose.
  • The -O option saves the output to a log file, hdf4.log.

• The built binary will be placed in the build directory. It will have the format:

  On Windows, a .msi or.exe file will also be created, depending on the installer. On Unix, an additional .sh file will be created.

  If the built binary is not there, then see Troubleshooting for help.
  

Troubleshooting

Hdf Zlib File Converter

• My platform/compiler is not included. Can I still use the configuration files?

  Yes, you can but you will have to edit the HDF4config.cmake file and update the variable: Other variables may be updated for informational purposes but are not required (for example, SITE_OS_BITS).

  The generators for your platform can be seen by typing:

• What do I do if the build fails?

  If the build works properly, then you will find the built and compressed binary in your CMake-hdf-4.N.N directory. If you do not find it then check the log files. You will find those in the build directory under CMake-hdf-4.N.N. For example, on Unix the log files will be in: There are log files for the configure, test, and build.

• What if the binary does not get packaged properly?

  If the binary did not get packaged properly, look at the cpack.log file in the build directory under CMake-hdf-4.N.N. For example, on Unix look here:

• What do I do if I need to rebuild the software?

  If you have to rebuild HDF4, remove the build directory first.

• The library was built but there are no binaries. What do I do?

  To install or package the binaries, run either make install or cpack in thebuild/ directory.

Hdf Zlib File Transfer