4C version v2026.1.0

[amgebauer]

What's Changed

Breaking Changes

• Remove deprecated CMake options by @sebproell in Remove deprecated CMake options #1230
• Write proper csv as DBC monitor output by @c-p-schmidt in Write proper csv as DBC monitor output #1211
• 1134 always build prebuilt 4c image by @ppraegla in 1134 always build prebuilt 4c image #1341
• Allow reading input fields directly from the (VTU-)mesh by @amgebauer in Allow reading input fields directly from the (VTU-)mesh #1321
• Remove pre_locsys executable by @sebproell in Remove pre_locsys executable #1413
• Write control files in YAML format by @sebproell in Write control files in YAML format #1407
• [solver] Remove monolithic part of amgnxn by @maxfirmbach in [solver] Remove monolithic part of amgnxn #1434
• Cleanup particle surface energy by @ppraegla in Cleanup particle surface energy #1499
• Change defaults for RESULTSEVERY and RESTARTEVERY of structure module by @c-p-schmidt in Change defaults for RESULTSEVERY and RESTARTEVERY of structure module #1534
• Remove old beamcontact input parameters by @davidrudlstorfer in Remove old beamcontact input parameters #1549
• Move beam to beam contact to beaminteraction by @davidrudlstorfer in Move beam to beam contact to beaminteraction #1551
• [docker] Update Trilinos to 16.2.0 Release by @maxfirmbach in [docker] Update Trilinos to 16.2.0 Release #970
• [solver] Move Ifpack preconditioner construction to Stratimikos by @maxfirmbach in [solver] Move Ifpack preconditioner construction to Stratimikos #1406
• Remove cardiovascular0d from old time integration framework by @amgebauer in Remove cardiovascular0d from old time integration framework #1646
• Remove redundant thermo vtk input parameters by @rjoussen in Remove redundant thermo vtk input parameters #1663
• Change the 4C CLI parser to CLI11 by @maxiludwig in Change the 4C CLI parser to CLI11 #1490

Dependency Changes

• [docker] Update Trilinos to 16.2.0 Release by @maxfirmbach in [docker] Update Trilinos to 16.2.0 Release #970
• [ArborX] Bump to v2.0.1 by @maxfirmbach in [ArborX] Bump to v2.0.1 #1552
• [FFTW] Make it optional by @maxfirmbach in [FFTW] Make it optional #1644
• Add gmsh as optional dependency by @rjoussen in Add gmsh as optional dependency #1645
• Update MIRCO hash and re enable tests by @RShaw026 in Update MIRCO hash and re enable tests #1656

Miscellaneous

• Tutorial Preconditioning solid (part 1) by @reginabuehler in Tutorial Preconditioning solid (part 1) #1242
• Add AAA (Adaptive Antoulas-Anderson) rational approximation implementation to ReducedLung by @bgoderbauer in Add AAA (Adaptive Antoulas-Anderson) rational approximation implementation to ReducedLung #1236
• Add wrapper for GGEV() from LAPACK by @vovannikov in Add wrapper for GGEV() from LAPACK #1246
• [constraint framework] Add nullspace constraint submodel evaluator by @maxfirmbach in [constraint framework] Add nullspace constraint submodel evaluator #1269
• Generalize projection for solving linear systems by @amgebauer in Generalize projection for solving linear systems #1267
• Extract rebalancing from mesh input by @sebproell in Extract rebalancing from mesh input #1270
• [beam3r] Implement nullspace computation method by @maxfirmbach in [beam3r] Implement nullspace computation method #1271
• Allow Discretization to fill from Mesh by @sebproell in Allow Discretization to fill from Mesh #1273
• Cleanup MPI_Allreduce wrappers by @rjoussen in Cleanup MPI_Allreduce wrappers #1275
• Tutorial Preconditioning fsi (part 2) by @reginabuehler in Tutorial Preconditioning fsi (part 2) #1278
• [solver] Add diagonal pertubation to SPAI by @maxfirmbach in [solver] Add diagonal pertubation to SPAI #1249
• Add node IDs as yaml data in DBC monitor output by @isteinbrecher in Add node IDs as yaml data in DBC monitor output #1290
• Include new material for volume fractions in porofluid-pressure-based framework by @lkoeglmeier in Include new material for volume fractions in porofluid-pressure-based framework #1110
• Allow data input from mesh file by @amgebauer in Allow data input from mesh file #1286
• Add remapping function for AD types by @isteinbrecher in Add remapping function for AD types #1316
• Allow to filter Mesh input by @sebproell in Allow to filter Mesh input #1323
• Add full variant of beam-to-beam point couplings by @isteinbrecher in Add full variant of beam-to-beam point couplings #1320
• Create 4C module particle by @ppraegla in Create 4C module particle #1329
• Add some vtu preprocessing information to documentation by @amgebauer in Add some vtu preprocessing information to documentation #1310
• Unify 4C Python project by @davidrudlstorfer in Unify 4C Python project #1322
• Use own structure for beam-to-solid penalty law data by @isteinbrecher in Use own structure for beam-to-solid penalty law data #1378
• Add evaluation context to material interface by @amgebauer in Add evaluation context to material interface #1371
• Add InterpolatedInputFields for point-based input field data by @amgebauer in Add InterpolatedInputFields for point-based input field data #1349
• Create new reference documentation layout by @ischeider in Create new reference documentation layout #1368
• Enable Tensor and Symmetric Tensor input from yaml/input spec by @amgebauer in Enable Tensor and Symmetric Tensor input from yaml/input spec #1382
• Add FSI tutorial with monolithic approach by @reginabuehler in Add FSI tutorial with monolithic approach #1360
• CMake: allow specifying test dependency versions by @sebproell in CMake: allow specifying test dependency versions #1414
• Add node-based interface aggregation capability for contact/meshtying problems preconditioned with MueLu by @PhilipOesterlePekrun in Add node-based interface aggregation capability for contact/meshtying problems preconditioned with MueLu #878
• Improve input types for Kirchhoff beams by @isteinbrecher in Improve input types for Kirchhoff beams #1402
• Introduce Teko as block preconditioner for ScaTra-Thermo-Interaction by @c-p-schmidt in Introduce Teko as block preconditioner for ScaTra-Thermo-Interaction #1143
• Introduce Teko as block preconditioner for Solid-ScaTra-Interaction by @c-p-schmidt in Introduce Teko as block preconditioner for Solid-ScaTra-Interaction #1430
• [constraint_framework] Add partial nullspace constraint by @maxfirmbach in [constraint_framework] Add partial nullspace constraint #1432
• Add beam-to-beam point couplings via CPP by @isteinbrecher in Add beam-to-beam point couplings via CPP #1420
• Add sym. HA-product by @tuchpaul in Add sym. HA-product #1474
• Allow setting fiber orientation with mesh data in the mixture module by @amgebauer in Allow setting fiber orientation with mesh data in the mixture module #1396
• Point coupling with Kirchhoff by @isteinbrecher in Point coupling with Kirchhoff #1502
• Write vtk based output in contact modelevaluator by @c-p-schmidt in Write vtk based output in contact modelevaluator #1503
• Allow interactive mesh plots in documentation by @amgebauer in Allow interactive mesh plots in documentation #1505
• Add a tutorial about vtu mesh input in our documentation by @amgebauer in Add a tutorial about vtu mesh input in our documentation #1512
• Allow for all types of beams in point couplings by @isteinbrecher in Allow for all types of beams in point couplings #1545
• Add spring dashpot condition for shell7p elements by @mairehenke in Add spring dashpot condition for shell7p elements #1447
• Let prescribed prestretch strategy take a field by @amgebauer in Let prescribed prestretch strategy take a field #1578
• Allow reading bit arrays from vtu files by @amgebauer in Allow reading bit arrays from vtu files #1579
• Allow det, inv, trace, etc on const TensorViews by @amgebauer in Allow det, inv, trace, etc on const TensorViews #1586
• [Trilinos] Move from Isorropia to Zoltan2 by @maxfirmbach in [Trilinos] Move from Isorropia to Zoltan2 #596
• Add eigenvalue utilities for non-symmetric tensors (compute eigenvalues, obtain eigenvector to known eigenvalue) by @amgebauer in Add eigenvalue utilities for non-symmetric tensors (compute eigenvalues, obtain eigenvector to known eigenvalue) #1595
• Add direct gmsh input by @rjoussen in Add direct gmsh input #1652
• Setup peridynamic interaction by @georghammerl in Setup peridynamic interaction #1561
• Allow to specify integration rule for solid element evaluation in input file by @amgebauer in Allow to specify integration rule for solid element evaluation in input file #1669
• [thermo] Enable WRITE_INITIAL_STATE by @rjoussen in [thermo] Enable WRITE_INITIAL_STATE #1665
• Enable vtk output for thermo field by @rjoussen in [TSI] Enable vtk output for thermo field #1676

Contributors

List of all contributors who authored, committed, reviewed, or commented on accepted pull requests for this release, sorted alphabetically.

• Authors / Committers: @amgebauer @bgoderbauer @bwirthl @c-p-schmidt @davidrudlstorfer @dharinib98 @dragos-ana @eulovi @georghammerl @gilrrei @ischeider @isteinbrecher @knarfnitram @lauraengelhardt @lkoeglmeier @m-frey @mairehenke @maxfirmbach @maxiludwig @mayrmt @PhilipOesterlePekrun @ppraegla @reginabuehler @rjoussen @RShaw026 @sebproell @shervas @tuchpaul @vovannikov

• Reviewers: @amgebauer @bgoderbauer @bwirthl @c-p-schmidt @davidrudlstorfer @dharinib98 @dragos-ana @eulovi @georghammerl @gilrrei @ischeider @isteinbrecher @knarfnitram @lauraengelhardt @lkoeglmeier @m-frey @mairehenke @maxfirmbach @maxiludwig @mayrmt @PhilipOesterlePekrun @ppraegla @reginabuehler @rjoussen @RShaw026 @sbrandstaeter @sebproell @slfuchs @tuchpaul @vovannikov

New Contributors

Thanks to first-time contributors to 4C!

• @reginabuehler made their first contribution in Tutorial Preconditioning solid (part 1) #1242
• @rjoussen made their first contribution in Fix Gauss point data output manager MPI implementation #1268
• @mairehenke made their first contribution in Add spring dashpot condition for shell7p elements #1447

Full Changelog: v2025.3.0...v2026.1.0

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This discussion was created from the release 4C version v2026.1.0.