Closed
Milestone expired on Mar 30, 2019

4.1

The next major release.

To make the release, increment the version number to 4.1 and create a 4-stable branch. Add release notes detailing all API changes. Increment the version on master to 5.0dev.

Release Notes

New features

  • Galerkin coarsening for Multigrid
  • LBM-PE-Coupling:
    • new coupling approach for unresolved particle interactions (discrete particle method)
    • adaptive grid refinement for coupled simulations
    • load balancing functionalities for coupled simulations
    • module description
  • integrated pystencils and lbmpy code generation for kernels and pack infos
  • new GPU communication, including support for GPUDirect
  • load balancing functionality for the pe

Major changes

  • A compiler with full C++14 support is now required
  • All Boost usage has been replaced with the corresponding standard library functionality, except for Boost.Python (used for the python_coupling module), Boost.PropertyTree (used in config::configToBoostPropertyTree) and Boost.Graph (used by math::EquationSystem). This usually means you need to replace boost:: with std:: in your code and change some #includes.
  • pe::Union, boundary::BoundaryHandling and boundary::BoundaryHandlingCollection are now variadic templates instead of taking a tuple of bodies/boundaries/handlers. This means that you need to replace std::tuple<A,B> with A,B in these cases.
  • dynamic load balancing now possible with levels ignored
  • using smart pointers for all memory management inside the pe

Minor changes

  • Remove dependency resolution from Singleton
  • added warning and assertion to findContainingProcess for points out of domain
  • removed PtrVector
  • rebased Union on BodyStorage
  • removed Node
  • removed contacts from RigidBody
  • removed attached bodies
  • removed attachables
  • changed return type to std array for improved usability
  • ExtendedBoundaryHandlingFactory now uses ParserUBB instead of UBB so that velocity profiles can be specified as an equation in a parameter file
  • Fix implict/explict typos in pe::cr
  • API changes in blockforest::PhantomBlockForest, blockforest::loadbalancing, pe::amr::weight_assignment
  • API change for vtk::VTKOutput::getFilenames
  • made setMass protected
  • Enabled the body selection functions for PSM coupling method
  • changed body mapping functions: removed most of them, added mapping-decider function, accomodated changes to test cases, added new mapping test case
  • changed pe coupling mapping functions interfaces, added new mapping functions, adapted test cases and benchmarks
  • extended dem collision model with dt
  • Change in lubrication correction functionality to not require the lattice…
  • Change in lubrication correction functionality to not require the lattice model but use the dynamic viscosity directly
  • pe::createBlockForest changed to support a variable number of processes
  • made SendBuffer memory access more high level
  • changed BodyStatistics to use shared_ptr instead of reference
  • implemented IProbe communication as an alternative to two message communication for unknown size communication
  • new creation helpers for BlockForest
  • grid_generators now allow range based for loops