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Change Log for libSplash

Release 1.7.0

Date: 2018-02-08

This release adds modernized CMake scripts including CMake config packages on install with targets. A new readAttributeInfo method was added to the DataCollector for save reading of types and extents of attributes. On reads, the offset in DataContainer for non-zero offsets in domains was fixed. Due to a bug in upsteam CMake, at least version 3.10.0 of CMake is required now.

Interface Changes

  • new read method: attribute meta info #248 #268
    • the methods readAttribute/readGlobalAttribute are deprecated
    • use safer readAttributeInfo/readGlobalAttributeInfo instead
  • keep info on H5 datatypes in collection types #259

Bug Fixes

  • DataContainer: fix offset read #263
  • FindHDF5.cmake: use upstream CMake version #267

Misc

  • modern CMake3 scripts #269
  • fix GitHub badges #254 #264

Thanks to Axel Huebl and Alexander Grund for contributions to this release!

Release 1.6.0

Date: 2016-10-28

SerialDataCollector file name interface change: this feature was accidentally not included in the 1.5.0 release.

Interface Changes

  • SerialDataCollector file name interface changed #242

Bug Fixes

  • compile with GCC 6.2 was broken: ambiguous abs #255

Misc

  • tests: remove warning on deprecated CMake usage in 3.1+ #242

Release 1.5.0

Date: 2016-10-26

Written attributes do now generate their according group path recursively if it does not exist and the SerialDataCollector interface for file names has been changed to be more consistent.

Interface Changes

  • SerialDataCollector file name interface changed #242
  • writeAttribute() now creates missing groups recursively #231 #250

Bug Fixes

  • throw more exceptions on wrong usage of ParallelDataCollector #247

Misc

  • compiling via -Werror is not shipped any more #251
  • python tools: indentiation cleanup #249
  • generateCollectionType refactored, docs fixed #243 #246

Release 1.4.0

Date: 2016-04-12

The SerialDataCollector now also writes global attributes to /, allowing serial files to fulfill the openPMD standard.

Interface Changes

  • SerialDataCollector::writeGlobalAttribute now writes to / instead of /custom (follow-up to #182) #229

Release 1.3.1

Date: 2016-04-12

This release contains bug fixes and serveral internal code clean-ups.

Bug Fixes

  • readMeta now returns the correct CollectionType if more then one entry was used per iteration, detection for ColTypeBool was broken #224
  • exception parameters are now catched consequently by const reference #213

Misc

  • remove tabs and EOL white spaces #216 #217 #218
  • remove _ prefixes from a few include guards #214
  • add example for the ParallelDataCollector class #14
  • remove beta notice for parallel HDF5 support #209
  • update travis-ci script #212

Release 1.3.0

Date: 2015-11-12

This release adds functionality for users to fulfill formatting for openPMD. Support for array attributes, strings/chars, bools and further h5py compatibility have been added. Additionally, read functionality has improved by new meta calls to determine type and size of a data set before reading. The internal format was increased to version 3.3

New Features

  • bool types are now h5py compatible #153 #198
  • new interface readMeta in DataCollectors to determine type and size before reading #203
  • new interfaces for DataCollectors writeGlobalAttribute to support arrays via HDF5 simple data spaces (h5py compatible) #170 #171
  • splashVersion and splashFormat are now written to /header #183
  • header define SPLASH_HDF5_VERSION remembers HDF5 version of build #177
  • chars, fixed and variable length string support added #167

Interface Changes

  • ParallelDataCollector::writeGlobalAttribute now writes to / instead of /custom (SerialDataCollector unchanged) #182

Misc

  • term "iteration" is now consequently preferred over "time step" #157 #187 #188 #204
  • public includes do not throw on -Wshadow any more #201
  • /header/compression attribute in new bool representation #199
  • CMake:
    • shared library detection refactored #192
    • FindHDF5 shipped with version support (pre CMake 3.3.0) #176 #169
  • doxygen project name updated #178
  • DataSpace refactored: prefer DSP_DIM_MAX over magic numbers #175
  • test scripts
    • CI (travis) false-positive fixed #172
    • output improved #166
    • warn on missing dir argument #185
  • INSTALL.md now in project's root directory #158

Release 1.2.4

Date: 2015-01-25

This release fixes a bug with parallel NULL reads.

Bug Fixes

  • Fix Null-Access Parallel Read Hang #148
  • Fix compile error on Red Hat #147

Release 1.2.3

Date: 2014-10-14

This release contains a minor fix for listing entries and groups.

Misc

  • Remove / from datasets when listing entries #143

Bug Fixes

  • Fix bug when querying DCGroup entries #142

Release 1.2.2

Date: 2014-06-21

That release was necessary since we forgot to bump the version number in <splash/version.hpp> with the last release.

Release 1.2.1

Date: 2014-06-20

This release contains a minor improvement in the data format. The internal format was increased to version 2.1 (which is backwards compatible to all 2.x formated files).

Misc

  • parallel simple data test re-enabled #130
  • data sets: use fixed size (non-extensible) by default, use H5F_UNLIMTED only in append mode #135
  • update install notes #134

Release 1.2.0

Date: 2014-04-30

New Features

  • splash2xdmf python script to create XDMF descriptions for libSplash files with domain information
  • allow to read/write attributes at groups

Interface Changes

  • major interface change: simplified interfaces as most read/write routines now use a Selection class for describe the source layout
  • local domain offsets are now exclusive, i.e. do not include the global domain offset
  • changed file format version to 2.0
  • add a finalize() call to ParallelDataCollector to free MPI resources

Bug Fixes

  • fix automatic chunking algorithm
  • only use HDF5 hyperslaps if necessary for improved performance
  • fix bug in getMaxID and getEntryIDs for ParallelDataCollector

Release 1.1.1

Date: 2014-02-20

Bug Fixes

  • Allow to write/read attributes at groups #99

Release 1.1.0

Date: 2014-01-23

New Features

  • Added support for various new collection types.
  • Added macros to generate array and compound collection types.
  • Enabled support for using static HDF5 library.
  • Added patch level and file format version information.
  • Updated user manual for parallel I/O.
  • New tests and examples.

Interface Changes

  • Header files moved to splash subfolder (include/splash/splash.h).

Bug Fixes

  • Create duplicate of user-provided MPI communicator.
  • Allow empty write/read calls (no data).
  • Improved HDF5 detection in cmake file.
  • Fix usage of MPI data types.

Misc:

  • Compiling with OpenMPI now requires version 1.5.1 or higher