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What-islib/hdf5/1.10-openmpi-4.0-intel-18.0: HDF5 library and tools version 1.10.5-openmpi-4.0-intel-18.0 with mpi dependency on version openmpi/4.0-intel-18.0
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Hierarchical Data Format 5 (HDF5) library and tools version 1.10.5-openmpi-4.0-intel-18.0. The 
 corresponding dependency mpi/openmpi/4.0-intel-18.0 (aka compiler suite and MPI)
 module should (and automatically will) be loaded first.

 The HDF5 technology suite includes:
 * A versatile data model that can represent very complex data objects and
   a wide variety of metadata.
 * A completely portable file format with no limit on the number or size of
   data objects in the collection.
 * A software library that runs on a range of computational platforms, from
   laptops to massively parallel systems, and implements a high-level API
   with C, C++, Fortran 90, and Java interfaces.
 * A rich set of integrated performance features that allow for access time
   and storage space optimizations.
 * Tools and applications for managing, manipulating, viewing, and
   analyzing the data in the collection.

 When using HDF5 on a Lustre file system, the internal data
 structures should be aligned with the striping of the file
 system. You can query and set the stripe size for a directory
 with the commands lfs getstripe and lfs setstripe.

 About striping have a look at
 http://wiki.lustre.org/index.php/Configuring_Lustre_File_Striping

 Next, the hdf parameters should be tuned as follows:

   H5AC_cache_config_t mdc_config;
   hid_t file_id;
   file_id = H5Fopen("file.h5", H5ACC_RDWR, H5P_DEFAULT);
   mdc_config.version = H5AC__CURR_CACHE_CONFIG_VERSION;
   H5Pget_mdc_config(file_id, &mdc_config)
   mdc_config.evictions_enabled = 0 /* FALSE */;
   mdc_config.incr_mode = H5C_incr__off;
   mdc_config.decr_mode = H5C_decr__off;
   mdc_config.flash_incr_mode = H5C_flash_incr__off;
   H5Pset_mdc_config(file_id, &mdc_config);

 There is an interesting thread about this in the hdf-forum:
 http://hdf-forum.184993.n3.nabble.com/Question-re-Howison-et-al-Lustre-mdc-config-tuning-recommendations-td2469878.html

 Documentation: /opt/bwhpc/common/lib/hdf5/1.10.5-openmpi-4.0-intel-18.0/doc
 Examples:      /opt/bwhpc/common/lib/hdf5/1.10.5-openmpi-4.0-intel-18.0/share/hdf5_examples
 Web:           http://www.hdfgroup.org/
   
 In case of problems, please contact 'bwunicluster-hotline (at) lists.kit.edu'
 or submit a trouble ticket at http://www.support.bwhpc-c5.de.

 The full version is: 1.10.5-openmpi-4.0-intel-18.0
SupportbwHPC Support-Portal
Installationsdatum09.05.2019
Löschdatum
Best-Practice-Wikihttp://www.bwhpc-c5.de/wiki/index.php/HDF5