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Changelog {#page_changelog}

v0.5.0 -- The MPI Bugfix Release (2015/06/01)

DOI: 10.6084/m9.figshare.1431794

$ git diff --stat v0.4.0..v0.5.0
> 45 files changed, 1109 insertions(+), 758 deletions(-)

Notable Features

  • random deadlocks with various setups due to open and unused MPI request handlers (#210, #212, #216)

  • PFASST with one processor was not MLSDC (#193, #196)

  • MPI is now the default when compiling (#197)

  • expected quadrature error now calculated and logged (#206)

  • runtime parameters can now also be read from config file instead of command line (#199)

  • colourful logging can now be disabled via runtime flag (#202)

  • file name for logs can be specified via runtime parameters (#203)

Details

  • VectorEncapsulation and MPIVectorEncapsulation merged into one (#176, #200)

  • version now set by Python script not requireing recompilation of everything when not changed (#195)

  • various enhancements and fixes of build system (#201, #211)

  • little code cleanup (#194, #204, #205, #208)

  • some documentation (#191, #207)

Contributors

  • Matthew Emmett, Lawrence Berkeley National Laboratory (memmett)
  • Torbjörn Klatt, Jülich Supercomputing Centre (torbjoernk)
  • Daniel Ruprecht, Institute of Computational Science, University of Lugano (danielru)
  • Robert Speck, Jülich Supercomputing Centre (pancetta)
  • Selman Terzi, Jülich Supercomputing Centre (selmanTerzi)

v0.4.0 -- The Big Improvement (2015/04/17)

DOI: 10.6084/m9.figshare.1381721

$ git diff --stat v0.3.0..v0.4.0
> 131 files changed, 15182 insertions(+), 6940 deletions(-)

Notable Features

  • Iteration controll for PFASST via relative and absolute residual tolerances. (#139, #141, #142)

  • Adding an implicit sweeper with support for LU decomposition of quadrature matrix. (#150)

  • General improvements to the logging and configuration functionality. (#144, #145, #146, #148, #163, #168, #169, #177)

  • Successful tests on supercomputers (i.e., JUQUEEN) (#168, #176)

  • Improved code organization. (#156, #157, #158, #170, #181)

  • Rewamped documentation. (#149, #160, [#179][], #183)

  • Examples: Boris supports multiple particles and multi-level coarsening (#152, #172, #180)

Details

  • logging framework [Easylogging][] has been updated from v9.75 to v9.80. (#163)

  • root finding algorithm for polynomials uses fixed number of iterations or residual tolerance. (#162)

  • reworked how pfasst::init(...) is used. (#148)

  • minimum CMake version bumped to 2.8.6 (#153)

  • git describe-based version number as pfasst::VERSION (#185)

  • script to generate and compile test coverage report was rewritten in Python 3.x (#154)

Contributors

  • Matthew Emmett, Lawrence Berkeley National Laboratory (memmett)
  • Torbjörn Klatt, Jülich Supercomputing Centre (torbjoernk)
  • Daniel Ruprecht, Institute of Computational Science, University of Lugano (danielru)
  • Robert Speck, Jülich Supercomputing Centre (pancetta)
  • Selman Terzi, Jülich Supercomputing Centre (selmanTerzi)

v0.3.0 -- The Big Cleanup (2014/12/12)

DOI: 10.5281/zenodo.13221

$ git diff --stat v0.2.0..v0.3.0
> 84 files changed, 7687 insertions(+), 1968 deletions(-)

Notable Features

  • Complete rewrite of quadrature functions. (#103)

  • Addition of iteration control mechanism for SDC and MLSDC. (extention for PFASST is scheduled) (#108)

  • Introduced framework for passing command line parameters to programs using PFASST++. (#88)

  • Versatile and colourful logging framework based on Easylogging++. (#105, #123)

  • New Example: Boris-SDC. (#113)

Details

  • Using Eigen3 matrix data types and functionality instead of Boost's uBLAS. (#82, #83, #85)

  • Introduced callback interception points in sweepers: post_step, post_sweep and post_predict. (#107)

  • In sweepers: state(0) is not assumed to be same as start_state. (#132)

  • Examples are now in their own namespace pfasst::examples:: (#138)

  • Bunch of CMake-related fixes and extentions. (#83, #96, #101, #109, #112, #119, #121, #131, #133, #135)

  • Example of using PFASST++ with a Makefile project (see advection-diffusion example). (#129)

  • Support for HashDist to provide dependencies. (#129)

  • A few corrections and extentions to the documentation. (#117, #120)

Contributors

  • Matthew Emmett, Lawrence Berkeley National Laboratory (memmett)
  • Torbjörn Klatt, Jülich Supercomputing Centre (torbjoernk)
  • Daniel Ruprecht, Institute of Computational Science, University of Lugano (danielru)
  • Robert Speck, Jülich Supercomputing Centre (pancetta)

v0.2.0 -- MPI PFASST (2014/08/29)

DOI: 10.5281/zenodo.11517

$ git diff --stat v0.1.0..v0.2.0
> 52 files changed, 3306 insertions(+), 875 deletions(-)

Notable Features

  • Addition of MPI based PFASST.

Details

  • Addition of MPI based PFASST algorithm using the standard predictor stage in a block mode with fixed iterations. (#46, #57, #59)

  • Addition of a simple scalar example and appropriate tests. (#61, #63, #76, #81)

  • Further tests on proper calculation of quadrature nodes and weights (#74)

  • Better handling of 3rd-party dependencies (#53, #55)

  • Various tidying (#56, #60, #77)

  • Basic Profiling support and test coverage report (#78)

Contributors

  • Matthew Emmett, Lawrence Berkeley National Laboratory (memmett)
  • Torbjörn Klatt, Jülich Supercomputing Centre (torbjoernk)
  • Daniel Ruprecht, Institute of Computational Science, University of Lugano (danielru)
  • Robert Speck, Jülich Supercomputing Centre (pancetta)

v0.1.0 -- First Release (2014/07/25)

DOI: 10.5281/zenodo.11047

Notable Features

  • Initial release with basic implementations of SDC and MLSDC

Details

  • agreed on code style guideline using Astyle tool (#2, #15, #21, #22)
  • few test cases for quadrature and advection-diffusion example (#23, #25, #33, #37)

Contributors

  • Matthew Emmett, Lawrence Berkeley National Laboratory (memmett)
  • Torbjörn Klatt, Jülich Supercomputing Centre (torbjoernk)