Tags

2026S

selected changes from last release (2025S, 702b45be)

New Features:
* 2D Curvilinear PML (94531fcf)
* Topology optimisation for acoustics (d72d42e2, 4780722c, 432dcf36, 5007fd8a)
* Added Hcurl higher order pyramid elements (7f6edcca)
* Periodic boundary condition for magnetics (2D) for circle segments called cakePieceProjection (9946797d)
* nonlinear permeability for magnetostatics in AV-formulation (e81cf493)
* Feature Mapping in C++ (49ff81e1, 437b30ca, 450e66cf, b00ba273)
* thinLayer formulation on NCI for MechPDE (ce2c5d36)
* strain-stiffening and additional results for the smooth PDE (a323ce9c, f7b1cad1, 94e93a21, d138de5e)
* Tensors can now be aligned with a vector field (4771dbeb)
  Define material rotation for regions: `<region name="S_U" rotateMaterialTensorsId="rotation" />` and defina a `<rotation>` via `<rotationList>`
  Will apply the rotation from `refVec` to `targetVec`, useful for rotationg transversally isortropic material tensors.
* linear Kelvin-Voigt (KV) Damping Model for MechPDE (f50beedb)
  use `<kelvinVoigt id="kv"/>` in `<dampingList>`
* user-defined nodes can now be specified much more flexibly (d5d7ff49,f50beedb)
  use `<expression>|<test>|<bounds>|<list>` in `<nodes>|<elems>` to select the closed elements based on flexible conditions
* the time integration scheme can now be selected via input XML (0e10de93)
  use `<integrationScheme>` in `<transient>` to define the scheme and its parameters (e.g. `<trapezoidal gamma="1"/>`)
* Bloch-periodic BCs in acoustics (432dcf36)
* Maxwell force density (surfElemResult and surfRegionResult) for harmonic analysis with magnetic edge PDEs (39115152)

Bugfixes and improvements (selected):
* fix ElemShapeMaps access (3dd5a33b)
* fluidMechStress as option for Ensight, add some user outputs ... (96bf250c)
* fix Joule losses (SpecialAV PDE, 4851b6c5)
* fix Lorentz force (for multiharmonic analysis, 3a7b7b7a)
* fix memory leaks (195ba7e7, 5dcde207)
* Correct normal vector orientation for Nitsche NCI (dcaa731e)
* 2.5D Acoustics (fa4e0460)
* Periodic BC with mutual-projection in 3D now also work without using CGAL (e6fa235e)
* Sign change of the velocity term in MagEdge and MagneticPDE to be consistent with the A-V Formulation (96fb81f4) 
* Parallelisation of EvaluateNonlinearity in CoefFunctionHarmBalance for MH simulations (609f8959)

Developer notes:
* updated cfsdeps: gidpost 2.13 (0d15aa33), Netlib/Lapack 3.12.1 (9cf4efb9), boost 1.90 (3ec87d34), FLANN is now nanoflann 1.10.0 (dadcbf67)
* timers and sub-times are really helpful (e.g. 54d6fc96, c3084d85)
* logging is great (e.g. 8c9eb309, d9a68283, 641c34a8)
* replaced many boost functions by std: `unordered_set`, `map`, `tuple`, `hash`, `any`, `hash_range`, `date_time`, `filesystem`, `shared_ptr` (33b4daba, 51a7d0a5, 19aafea3, ef862dea, 119e3937, 9b89a53b, 6a38ccd3)
* renamed directory source/cfsdat/Utils to DatUtils (7432993b)
* pipeline fixes (02bda982, 537be824, 864d151e)
* Adaptions for CMake 4 (df9ec540)
* new CDash server: http://am-ko.mi.uni-erlangen.de/cdash (d39b864f)
* SinInputMESH is now much faster (c23d49bb)
* modern PyInitialize() for python 3.12 (24f8572e)
* Intel MKL can be slow on AMD systems if not properly configured (b01131ab)
* compile-time optimisation for includes (9e969aad)

2025S

Selected changes from the previous release (2024S)

New features:

* define custom math expressions via postProcList and use them in couplings (37b95f46)
* artificial diffusion and SUPG stabilization for the HeatPDE (09ffcc6e, 2b4fc593, 10e9452a)
* thinLayer interface condition in HeatPDE (000c90a1)
* GetRidOfZeros function to remove unnecessary zeros created by NCIs from the system matrix before solving (18c6118b)
* Jérémie Dumas C++ MMA implementations (f067b14f)
* Ginkgo solver package with CUDA support (430e8083, ba5c64ff, dfa3e0d5, 4fc9e5df, ece50f4e)
* acoustic topology optimization (1469652c, 45895d27)
* Lorentz Force Density in Frequency Domain (cc99aaac)
* Magnetic A-V,A formulation can handle moving material, including SUPG stabilization (2e821943, 21b4ea2d, aba69daf, 6d70738d, ccaa20dd)
* VolumeAcceleration in MechPDE (53f455c2)
* 2.5D (wave number) acoustic analysis type (66d3d5ee)
* Time Domain Equivalent Fluid model in acoustics (9661f7b4)


Breaking changes:

* Refactor Rayleigh damping (0abb75bd)
  The input definition for _Rayleigh-type_ damping has changed to more clearly reflect the different damping types available in openCFS. We now have:
  - 3 ways to define Rayleigh damping parameters in the material-XML file:
    use `<coefficients>|<computeFromTanDeltaAtFrequency>|<computeFromTwoPoints>` in `<damping><rayleigh>`
  - a new damping type `<adaptedLossTangensDelta>` in the simulation XML that represents Rayleigh damping with coefficients computed such that a specific loss factor is maintained for each frequency. 
    The material XML scheme has corresponding inputs that allow for constant and frequency-dependent loss factor definitions.
* non-conforming interface input changed (ff0d6d2f)
  master->primary, slave->secondary  

Bugfixes and improvements (selected):

* acoustic pressure output on surface elements (e2907e19)
* acoustic pressure as a nodal result for acouPotential formulation (d743e01f)
* averageRegionResults in AcouPDE (e421c2d6)
* additional postprocessing results for LinFlowPDE: surface velocity, impedance (4e439349)
* improved automatic layer generation (80d203fb)
* Correct Joule loss density in SpecialAV formulation (5a63d8d4)
* Corrected some postProcResults in the elecCurrentPDE and re-enabled transistor tests (83cec139, d39baca9)
* Improved externalSolver behaviour (cdd63365, 9a34e35f, d9deae7a)
* Orientation-dependent surface-volume integration point mapping (dcf77778)
* specialAV formulation with current forcing is now symmetric (4900e170)
* axi-symmetric LinFlowPDE works in the frequency domain now (8c2e3faa)
* solve the transpose and conjugate transpose problem with PARDISO (b45ae3a1)
* implement penalty method for multiple excitations (a5f82e8d)
* CoefFunctionGridElem to read element-based results as input (49ff0140)
* Fix various memory leaks, including GetRidOfZeros (be4bef44)

Developer notes:

* Updated CGNS to version 4.4.0 and switched CMake process to the new style (43e2cb58)
* Infrastructure improvements: 
  - smaller docker containers with shared MKL
  - version labels
  - shared cache for precompiled
  - pipeline behaviour via mergre-request labels 
* refactoring in AcousticPDE (26ee3c0a, 7deba41c)
* upgraded superLU (e840455f)
* use cdash.py to query the status of a test over time (4b5314e5)
* large refactoring in NCI handling (ff0d6d2f)
* new Intel-MKL finding based on cmake files provided in oneAPI (44756ced
* included the Testsuite repo (8f34e885)
* switch to c++17 (7b79f778)
* gidpost update (430e8083)
* zlib update (901e6253)
* cfsdeps now build in parallel (7db6735d,162abb21,3eab345c)

2024S

Selected changes from the previous release (2023W)

New features

* CFSDAT: Added the possibility to include a maximum search radius for the NearestNeighbourInterpolator (675c6e39)
* Rayleigh damping in WaterWavePDE (ff3251ef,54f06bde)

Bugfixes (selected)

* Fix of power postprocessing output in ElecCurrentPDE (896461e7)
* Fix a bug in the definition of the PML postprocessing results (245af0fd)
* Grid input can be read to define convective velocity (24991a84)

Developer notes

* Improved Windows compiler support (b7848413,df8abad9,13a49eb6)
* Support for Intel oneAPI 2024 (968133c9)
* Windows pipeline (771e48ca) and other pipeline adjustments (3f288ab3,148e8f60)
* Build on Alpin-Linux with MUSL libc works now (949e2e46)
* We now use MKLConfig.cmake to find MKL (fce353aa)

2023X

extraordinary release to celebrate automatic windows builds via our CI/CD pipeline.

2023W

Selected changes from the last release (2023S)

New features
* tree stepping for harmonic simulations (5944efb1)
* LinFlowMech Mortar coupling (c3c14b60)
* FixedPointSimple Nonlinear solution (068efa25)
* Interface for external SGP optimizer (f8c64aa7)
* viscous dissipation power (LinFlowPDE) (e96da433)
* storage of left eigenvectors to hdf5 file in eigenValue analysis (4561b0bb)
* saving of eigenvalues to info.xml (6679e032)
* custom search contour for FEAST (5280116f)
* acceleration BC for WaterWavePDE (278de5a1)
* WaterWavePDE postprocessing results: sirface traction, reaction force and torque (34f73da9, e63bff4d, 803376e3)
* CDB reader can now handle "thermal solid elements" (element 278 and 279) (ee5af1c5)
* Curvilinear PML and an automatic layer generation algorithm (9f79019e)

Bugfixes (selected)
* Fixed the L2norm postproc-result for harmonic computations (0895c14b)
* Left eigenvectors for FEST solver (cc88723b)

Developer notes
* added JUnit information in pipeline (f5656866)
* tags in testsuite and major pipleine restructuring (73a3f23d, 5115e418, 9c45d38f, fdcbd94d)
* new cfsdeps structure
* Eigen is now available via cfsdeps (864a5868)

Breaking changes
* remove legacy gmv reader/writer (dea55f4c)
* Introduce material definition for smoothPDE (b4ac0859)

Version to be used in courses of 2023 winter term

2023S

Selected changes from the last release
* replaced start scripts by binary files (3bb4f365)
* Fixed standard solver selection for non-symmetric system matrices (e6460cf2)
* Material file is now optional - internal default material data base can be used (4f94eb3b)
* MechAcou Coupling for complex fluid formulation including ABCs (ac4a02fa,9e8bd603)
* FEAST eigenvalue solver for quadratic EVPs including stochastic estimate (b0f09d33,6be4f2e7,f78dcbfc,e6de379a)
* removed complex material input in acoustics (444bf186)
* LinFlowHeat coupling in symmetric formulation (36946c0f)
* Modified the MaxwellSlipBCs (7e774ed7,96f42351)
* Implemented temperature dependent BH curves (96c8811c)
* Quasi-Contact (1f1970aa)
* external solver (af8a2c64,791400bf,97bc4b98)
* external eigensolver (c0223516)

Support for new build environments
* Clang 15 / gfortran on Linux
* MVSC and Intel OneAPI on Windows

Updated cfsdeps
* Upgrade to newer hdf5-1.8.20 (04b27b6e)
* switch cgns to 4.3.0 (5778b4df)
* LIS update and fixed: bf583143
* and some others ...

Version to be used in courses of 2023 summer term

2022W

Selected changes from last release:
* energy based (EB) vectorhysteresis: 89febe83
* New BCs in LinFlowPDE: 39034b45, 5cdfa6eb
* L2Norm postproc result: 33623348
* New scalar potential magnetic PDE: 3d7534de
* New post-processing results in LinFlow PDE: 619c2be7
* ALE formulation in LinFlow PDE: 9953b7a5, cf59b228, 39e3e36c
* axi-symmetric formulation for the LinFlowPDE: 9fe8d883
* eddy current as integrated result in nodal magnetic: 40fdd8ca
* Thermal Radiation Boundary Condition: cdca55ab

as well as
* support for gcc12: 02f78e0a
* various bugfixes all over the place

Version to be used in courses of 2022 winter term

2022S

Summer of 2022

* for teaching in the summer semester
* created later for release-testing

2020X

Release of openCFS

* first note
* second line

This is the first one created by the pipeline

2021W

2021S

* removed CGAL from default build
* added license handling

2020W

release for teaching in the winter semester 2020/21

2020S

release for teaching 2020S

UE2019W

Version for students of winter term 2019

UE2019S

IGTE2018

UE2018W

Version installed to the Student VM of WS2018/19

pre_FE-Space_group_stingl

v17-4

v16-3