SG++
Downloads and Version History

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If you publish any results obtained based on or with any help of SG++ or its documentation, you have to cite a corresponding publication listed at http://sgpp.sparsegrids.org.

Versions

Version 2.1.0, 2016/08/12

Important changes:

  • We are modifying the preliminary combigrid module; therefore it is not included in this release
  • Introduced C++11 features
    • smart pointers
  • Completely restructured documentation of examples
  • A lot more examples
  • Improved build system
  • Better unser instructions for build system
  • More tests
  • Clone method for Grids
  • New learner functionality

Version 2.1.0, 2016/08/12

As we have retructured (and significantly improved) several of the interfaces, we switched to a new, major version. As we don't provide backwards compatibility, we list here the most important changes:

  • Massive interface change in sgpp::base from plain pointers to smart pointers and references (e.g., sgpp::base::Grid::createLinearGrid(), sgpp::base::Grid::getGenerator(), …)
  • Consistent renaming of key functions in Grid, GridStorage, and GridIndex (e.g., sgpp::base::Grid::getDimension())
  • Name change of global namespace from SGPP to sgpp
  • Major redesign of SCons scripts, change of SCons parameters, better diagnostic output
  • Add support for Clang 3.8
  • Overall improvement of the code quality due to fixed Clang warnings
  • Removal of single precision support and of float_t
  • Removal of MSVC++ support
  • More unit tests
  • Small changes and bug fixes in code and documentation

Version 1.1.0, 2016/02/24

New features:

  • Improved code quality
  • New combigrid package
  • OpenCL data mining
  • Improved Scons support
  • Support for installation (scons install)
  • More unit tests
  • New optimization method (CMA-ES)
  • Some refactoring in sgpp::optimization (may break compatibility)
  • Test problems for sgpp::optimization restructured.

Version 1.0.0

Finally, it's out there!

Please note that release version 1.0.0 contains a major restructuring. Interfaces have been redesigned, factory methods restructured, and a lot of improvements have been done.

Important changes that might cause side-effects in codes using previous versions include:

  • There are entirely new parameters for compilation. Please see scons -h for further information.
  • Some of the Grid classes have been renamed. This affects especially the boundary-based grids. LinearBoundaryGrid is now the grid with the same discretization on the boundary as on the main axis.

Features of Release Version 1.0.0:

  • Automatic check for requirements in SCons for compilation
  • Full module support
  • Release of further and extended modules (optimization, pde, solver, datadriven, …)
  • Extended parallelization support
  • New types of basis functions
  • More documentation, especially on adaptive refinement
  • And much more…

Version 0.9.2

Version 0.9.1

  • Download: release_0.9.1.tgz
  • Compilation support for auto detection of settings.
  • Extended use of DataVector from Python.
  • GridDataBase class.

Version 0.9.0

  • Download: release_0.9.0.tgz
  • Provides everything that is necessary to use spatially adaptive sparse grids for interpolation, optimization, …
  • Several types of piecewise linear basis functions
    • Different boundary treatment
    • Modified boundary basis functions
  • Grids (handling, creation, modification, …)
  • Adaptivity
  • Hash-based grid storage