v1.6.1

This is a patch release.

What's Changed

• Add cmesh example triangulated spherical surface [1/n] by @jmark in #755
• Fix compilation failure with the release tarball v1.6.0. by @jmark in #876
• Updated citation and test files to new patch release v1.6.1. by @jmark in #878

Full Changelog: v1.6.0...v1.6.1

v1.6.0

What's Changed

• Bug-fixes
• Performance upgrades in geometry module
• New depth-first-search
• Resolved many to-dos

In Detail

• New version 1.5.0 by @lukasdreyer in #726
• Bump crate-ci/typos from 1.16.4 to 1.16.6 by @dependabot in #680
• Improve vtkGrid_to_vtkPointSet by @Davknapp in #677
• Exclude logo from typo check by @sandro-elsweijer in #727
• Fix bugged compilation in puma_patches by @Davknapp in #732
• remove custom datatypes from pr template by @sandro-elsweijer in #734
• Bump crate-ci/typos from 1.16.6 to 1.16.10 by @dependabot in #735
• Cmesh example with curvilinear geometry: Squared Disk [1/n] by @jmark in #653
• Fix issue #446 by @sandro-elsweijer in #671
• Use latex in doxygen documentation by @sandro-elsweijer in #656
• Feature puma patches [7/x] Batch processing of element ref_coords by @sandro-elsweijer in #661
• Fix documentation CI by @sandro-elsweijer in #737
• Bump actions/checkout from 3 to 4 by @dependabot in #738
• switch to spell-check master branch by @sandro-elsweijer in #736
• Fix documentation CI by @sandro-elsweijer in #740
• Revert "Fix documentation CI" by @Davknapp in #741
• Fix documentation - now for real by @sandro-elsweijer in #744
• Feature puma patches [8/x] Batch processing of tree ref_coords [1/x] Interface by @sandro-elsweijer in #662
• Improve forest vtk writer api by @Davknapp in #746
• Remove some indent markers by @sandro-elsweijer in #745
• Improve the docstrings of geometry implementations by @sandro-elsweijer in #750
• Feature puma patches [8/x] Batch processing of tree ref_coords [2/x] Linear geometries by @sandro-elsweijer in #664
• Feature batch processing t8 forest element point inside by @Davknapp in #733
• Update clang-format to v17.0.1. by @jmark in #765
• Bug fix: eclass_compare by @ackirby88 in #770
• Convert squared disk cmesh example to batched version. by @jmark in #753
• Check the inequalities definied for eclasses by @Davknapp in #771
• Added contribution notes and code of conduct. by @jmark in #766
• Fix issue #773 by @jfussbro in #776
• Fixed spell errors raised by typos-cli 1.16.17. by @jmark in #779
• Bumping git submodules (sc & p4est) to latest versions. by @jmark in #789
• fix pyramid face orientation by @lukasdreyer in #797
• Test face neigh by @WeberJulia in #669
• Enable pyramid in advection example by @holke in #391
• Added a test for the face-orientation by @Davknapp in #799
• Fix a warning, where double* was used in header, but double name[3] in source by @Davknapp in #807
• Test for element ref coords by @sandro-elsweijer in #803
• Fix typo by @Davknapp in #815
• Feature ci mattermost messages test by @Davknapp in #817
• Test adapted workflow by @Davknapp in #818
• typo fix by @Davknapp in #819
• Feature ci mattermost messages by @Davknapp in #809
• Revert "Feature ci mattermost messages" by @holke in #820
• Update README.md by @holke in #822
• Feature ci mattermost messages by @Davknapp in #821
• More const params by @Davknapp in #808
• Add a comment on the usage of the incomplete trees flag of a forest by @holke in #826
• Add abort message to Ghost algorithm when using deleted elements by @holke in #827
• Fix ref coords by @lukasdreyer in #834
• Update examples by @Davknapp in #812
• This Todo does not refer to a function anymore. by @Davknapp in #842
• Gave the adapt function a more explaining name by @Davknapp in #843
• delete header functions by @chiaraMaHe in #841
• Remove solved to-do by @sandro-elsweijer in #839
• Remove todo by @Davknapp in #837
• Update help message requiring specific clang format version. by @jmark in #846
• Delete element boundaries by @Davknapp in #844
• Fixed TODO for code duplication in t8_cmesh_examples.c by @Niklas997 in #848
• Feature issue28 get element return const by @holke in #833
• Element equality assertion in google-test style by @Davknapp in #853
• Introduce interface function t8_element_equal by @lukasdreyer in #852
• Update cmesh partition alternative sendrecv range by @Davknapp in #850
• Add include_guards by @Davknapp in #856
• Enhance eclass scheme is default by @Davknapp in #847
• Fix prism extrude face return value by @Davknapp in #836
• Helper class to test scheme functionality on all elements by DFS by @lukasdreyer in #854
• Test t8_element_equal by @lukasdreyer in #855
• replace t8_locidx_t by t8_gloidx_t by @lukasdreyer in #811
• Enhance t8 cmesh offset by @Davknapp in #849
• Add preamble and file description by @lukasdreyer in #861
• Fix interface by @lukasdreyer in #859
• Test boundary extrude by @lukasdreyer in #857
• Feature puma patches [9/x] element stretching by @sandro-elsweijer in #731
• Delete element root len by @Davknapp in #845
• Feature bugfix cmesh set partition offsets by @holke in #868
• Fix curved vtk ref coords by @sandro-elsweijer in #866
• in cmesh_reset only check comm valid if cmesh is committed by @holke in #870
• Moved t8_forest_element_from_ref_coords implementation into cxx file. by @jmark in #872
• Bugfixes in curved geometry by @sandro-elsweijer in #867
• Update citation for 1.6.0 by @sandro-elsweijer in #874

Full Changelog: v1.5.0...v1.6.0

v1.5.0

What's Changed

• Bugfixes in memory management: memory pool in scheme no longer leaks memory
• New indent script: updated from gnuindent to clang-format

In Detail

• Fix a typo by @Davknapp in #658
• Update version by @Davknapp in #659
• Add warning if indent is not installed by @sandro-elsweijer in #663
• Bump crate-ci/typos from 1.16.1 to 1.16.2 by @dependabot in #666
• Parallel polydata reader by @Davknapp in #634
• Indent vtk related files by @Davknapp in #668
• Missing funktions in t8 mesh examples.c by @JPGeorgeDLR in #619
• Bump crate-ci/typos from 1.16.2 to 1.16.4 by @dependabot in #674
• Fix t8 forest leaf face neighbors memleak by @ackirby88 in #675
• Add occ datatypes to custom datatypes by @sandro-elsweijer in #670
• Add t8_element_destroy statements to improve memory management by @lukasdreyer in #678
• Delete filter after usage by @Davknapp in #679
• Delete an INDENT-ON/OFF by @Davknapp in #681
• Update t8_cmesh_readmshfile by @Davknapp in #695
• Update t8_cmesh_types by @Davknapp in #698
• Update t8_cmesh_stash by @Davknapp in #697
• Update t8_cmesh_refine by @Davknapp in #696
• Update t8_cmesh_occ.cxx by @Davknapp in #694
• Update t8_cmesh_helpers by @Davknapp in #693
• Update t8_cmesh_examples by @Davknapp in #692
• Add logo by @Davknapp in #699
• indent test_t8_forest_incomplete files by @chiaraMaHe in #701
• Update indentation test-t8_IO by @chiaraMaHe in #702
• Update indentation example-common by @chiaraMaHe in #703
• Update indentation src-t8_data by @chiaraMaHe in #707
• Update prints to new column length. by @Davknapp in #691
• Update test/t8_forest/* by @Davknapp in #687
• Update indentation scheme-default_line by @chiaraMaHe in #713
• Update indentation schemes-default_quad by @chiaraMaHe in #716
• Update indentation schemes-default_vertex by @chiaraMaHe in #715
• Update scheme-default_hex by @chiaraMaHe in #714
• Update example io by @Davknapp in #712
• Update test t8 data by @Davknapp in #711
• Remove indent on/off comments test schemes by @Davknapp in #682
• Update src directory files by @Davknapp in #709
• Correct String by @chiaraMaHe in #717
• Checked new indentation scheme for several files by @Niklas997 in #700
• Update example forest by @Davknapp in #710
• Update src t8 schemes by @Davknapp in #718
• Enforce clang-fromat version 16.0.6 by @Davknapp in #719
• Update indentation src-t8_geometry by @chiaraMaHe in #704
• Update indentation tutorial by @chiaraMaHe in #722
• Update indentation example_cmesh by @chiaraMaHe in #723
• Update indentation test_geometry by @chiaraMaHe in #724
• Removed stray # by @Davknapp in #721
• From GNU-indent to clang-format by @Davknapp in #708
• Switch from gnuindent to clang-format by @sandro-elsweijer in #262

New Contributors

• @JPGeorgeDLR made their first contribution in #619
• @ackirby88 made their first contribution in #675

Full Changelog: v1.4.1...v1.5.0

v1.4.1

What's Changed

• Added curved geometry for triangles
• Improved geometry implementation
• Added a parallel reader
• Added a function to create the connectivity for cmeshes
• Improved CI
• Improved testing
• Bug-fixes

In Detail

• Update version by @Davknapp in #657
• Fix serial build by @lukasdreyer in #610
• Fix t8_element_child for quads and hexs when input=output by @lukasdreyer in #612
• fix vtk-warnings by @Davknapp in #604
• Feature puma patches [5/x] reimplement element centroid by @sandro-elsweijer in #521
• Feature puma patches [6/x] axis-aligned geometry by @sandro-elsweijer in #520
• Fix ref element corner lookup by @jfussbro in #617
• update github runners to 22.04 due to new doxygen version requirements by @sandro-elsweijer in #618
• Parametrize gtest eclass by @Davknapp in #602
• Implemented wrapper for sc_shmem_prefix by @Davknapp in #614
• New header file with useful matrix operations. by @jmark in #615
• Use new docker image for t8code tests by @sandro-elsweijer in #553
• Update status badges in README.md by @jmark in #622
• Use t8_vec-functions that do the same to reduce code duplication by @Davknapp in #623
• Update t8_vec.h to sync with t8_mat.h by @Davknapp in #624
• Set child_id to 0 for the root-element by @Davknapp in #587
• Vtk parallel reader by @Davknapp in #607
• Automatically update GitHub Actions via Dependabot by @sloede in #625
• Bump actions/upload-artifact from 1 to 3 by @dependabot in #628
• Bump peter-evans/create-pull-request from 4 to 5 by @dependabot in #630
• Bump actions/cache from 2 to 3 by @dependabot in #631
• Disable non-applicable workflows on forks by @sloede in #633
• Bump actions/checkout from 1 to 3 by @dependabot in #629
• Ghosts via vtk api by @Davknapp in #593
• Feature remove obsolete indent guards by @Davknapp in #637
• Only trigger the workflow on PR-events. by @Davknapp in #638
• Fix some typos by @sandro-elsweijer in #639
• Let the indent script also run over benchmarking files by @Davknapp in #641
• Move t8_cmesh_set_tree_vertices by @sandro-elsweijer in #635
• Fix the orientation of this example by @Davknapp in #644
• Fix orientation pad by @Davknapp in #646
• Fix orientation by @Davknapp in #645
• Add check to only commit and push if there are changes by @Davknapp in #647
• Renable VTK output without linking to VTK library by @jmark in #649
• Enable construction of cmesh from distributed vtkgrids. by @Davknapp in #608
• Compute face connectivity for a cmesh by the tree vertices. by @jmark in #626
• fix some typos by @ranocha in #642
• Fix minor typo in pyramid scheme. by @jmark in #651
• Fix issue 399 - Remove processing of linear geometries for speedup by @jfussbro in #501
• Add spell checking scripts by @sandro-elsweijer in #650
• Feature curved triangles by @jfussbro in #590
• Pretify Data-writing by @Davknapp in #652
• Test face descendant by @WeberJulia in #580
• Update README with a note on the Julia wrapper. by @jmark in #654
• Add writing of child_indices for prism children at face by @Davknapp in #586

New Contributors

• @dependabot made their first contribution in #628
• @ranocha made their first contribution in #642
  Full Changelog: v1.3.0...v1.4.1

v1.3.0

What's Changed

• Implementation of incomplete trees by @ililikakis
• Added reader for vtk_polydata and vtk_unstructured_grid
• New Tutorials

In detail:

• Update t8_gtest_version.cxx by @ililikakis in #527
• Split forest h by @chiaraMaHe in #516
• Remove branch limitation of release workflow by @sandro-elsweijer in #532
• Enable recursive documentation and remove file patterns by @sandro-elsweijer in #534
• Fix linking problems in static mode. by @pkestene in #533
• Fix wrong number in comment by @holke in #535
• Update references in README by @holke in #536
• quality improvements in README by @holke in #537
• Update README.md by @Davknapp in #540
• Feature puma patches [3/x] add element ref coords implementation by @sandro-elsweijer in #518
• Feature puma patches [4/x] adapt vtk output by @sandro-elsweijer in #519
• Feature create cmesh from boundary by @ililikakis in #451
• Partition ghost attributes by @lukasdreyer in #448
• Add vtk_poly_data_reader [vtk_to_cmesh 4/6] by @Davknapp in #465
• Add preprocessor macros for documentation by @sandro-elsweijer in #543
• Fix issue546 by @Davknapp in #549
• Removed deprecated unit test file by @jmark in #544
• Remove a t8_dtri_is_valid assertion, that gets called with a pyramid-descendant by @Davknapp in #551
• Cmesh vtk reader implementation [vtk_to_cmesh 5/6] by @Davknapp in #466
• Cmesh vtk data set translator [vtk_to_cmesh 6/6] by @Davknapp in #467
• Split vtk_writer function [1/2] - update vtk_writer by @Davknapp in #508
• Added a newline in cmesh examples warnings output. by @jmark in #565
• Tutorial8 by @chiaraMaHe in #525
• Fix pyramid element ref coords by @sandro-elsweijer in #566
• Added constness to flags by @edirab in #571
• Fix vtk compiler errors by @sandro-elsweijer in #567
• Fix a typo by @Davknapp in #575
• Add tutorial step7 - interpolation by @chiaraMaHe in #560
• Split vtk_writer_function[2/2] Add forest_to_vtkUnstructuredGrid function by @Davknapp in #510
• Added constancy to flags in t8_forest_replace_t by @edirab in #573
• delete non-used variables by @Davknapp in #579
• Feature shmem allgatherv by @Davknapp in #555
• Make indent scripts runnable from repo root directory. by @jmark in #561
• Cmesh vtk data set translator [vtk_to_cmesh 6a/6] by @ililikakis in #539
• Enable ghost cell output in tutorial step 4 by @bgeihe in #583
• reduced num testscases for LESS-TESTS by @ililikakis in #585
• vtkDataSet to vtkPointSet translator by @ililikakis in #541
• Parametrize shmem test by @Davknapp in #588
• Feature remove elements by @ililikakis in #581
• removed individual t8_debugf by @ililikakis in #595
• More const params by @Davknapp in #594
• Update README.md - Reference setup to Wiki by @chiaraMaHe in #591
• Moved the translation of an element to a vtkCell into a seperate function by @Davknapp in #592
• Parametrize vtk tests by @Davknapp in #597
• Vtk parallel checks by @Davknapp in #599
• Fix eclass vtk corner number by @Davknapp in #601

New Contributors

• @pkestene made their first contribution in #533
• @edirab made their first contribution in #571
• @bgeihe made their first contribution in #583

Full Changelog: v1.2.0...v1.3.0

v1.2.0

What's Changed

• Implementation of a vtk file reader for cmeshes
• Migrated all tests to Google test
• Updated to the newest p4est and sc versions
• Performance improvement for curved geometries

In detail:

• Rename t8 cmesh vtk by @Davknapp in #450
• Cmesh vtk reader by @Davknapp in #454
• Geometry by @WeberJulia in #447
• Test point inside by @WeberJulia in #461
• Test search by @WeberJulia in #482
• test_pyra_face_descendant to gtest_pyra_face_descendant by @WeberJulia in #397
• Fix vtk-linkage test by @Davknapp in #485
• Explain advection flow 7 by @sandro-elsweijer in #475
• Revert "Revert "Fix issue 352"" by @sandro-elsweijer in #470
• Test find owner by @WeberJulia in #479
• Test forest commit by @WeberJulia in #481
• Test ghost and owner by @WeberJulia in #491
• Test half neighbors by @WeberJulia in #480
• Fix issue 353 by @sandro-elsweijer in #417
• t8 precision by @sandro-elsweijer in #490
• Test ghost exchange by @WeberJulia in #492
• Test forest transform by @WeberJulia in #493
• Merge queue test - [vtk_to_cmesh 1/6] by @Davknapp in #455
• Test user data by @WeberJulia in #494
• Updated pyra-tests by @Davknapp in #497
• Consting eclass arguments in many functions. by @jmark in #403
• General p4est and libsc update by @cburstedde in #499
• Update update_documentation.yml by @Prasanna-Ponnusamy in #502
• Feature improve gtest output by @Davknapp in #504
• Vtk unstructured reader [vtk_to_cmesh_2/6] by @Davknapp in #463
• Added BSD Statement by @chiaraMaHe in #509
• Fix Issue505 - README by @chiaraMaHe in #507
• Feature puma patches [1/x] refactoring by @sandro-elsweijer in #514
• Improve tutorial documentation by @Davknapp in #517
• Update pull_request_template.md by @holke in #522
• Adding a dummy-test for the cmesh_vtk_reader [vtk_to_cmesh 3/6] by @Davknapp in #464
• Feature puma patches [2/x] add element ref coords interface by @sandro-elsweijer in #515
• Update CITATION.cff by @ililikakis in #526
• Create author_ponnusamy.txt by @Prasanna-Ponnusamy in #528
• Update CITATION.cff by @ililikakis in #529
• Update CITATION.cff by @ililikakis in #530

New Contributors

• @jfussbro made their first contribution in #468
• @Prasanna-Ponnusamy made their first contribution in #502
• @chiaraMaHe made their first contribution in #509

Full Changelog: v1.1.2...v1.2.0

v1.1.2

Added MinGW support on Windows platforms.

v.1.1.1

Minor patch release.

v1.1.0

What's Changed

• Support for multiple attributes per cmesh tree
• New Step 6 tutorial
• Minor documentation and API improvements
• Code clean-up
• Converting tests to GoogleTest and more tests

In detail:

• Update README.md by @sandro-elsweijer in #345
• automate documentation upload to website by @sandro-elsweijer in #343
• Added another library to make it compile with VTK 9.2. by @jmark in #346
• Fix some examples by @sandro-elsweijer in #344
• Removed config directory from gitignore by @sandro-elsweijer in #351
• Add missing library for older OCC Versions by @sandro-elsweijer in #350
• Preparation for improved way to access parent/ancestor information of pyramids by @lukasdreyer in #347
• Made the parameter vertex a const-parameter for all elements. by @Davknapp in #356
• Add a debug function that prints the trees of the cmesh by @Davknapp in #357
• Updated class parameters to coding guideline, one line per variable by @Davknapp in #359
• Convert naca example to tutorial by @sandro-elsweijer in #354
• Added files to .gitignore which are generated via ./bootstrap. by @jmark in #361
• Pyramid: compute and use switch_shape_at_level by @lukasdreyer in #348
• updated test_hypercube to gtest_hypercube by @WeberJulia in #360
• Enhancement test to gtest by @WeberJulia in #364
• Enhancement pyramid variable scope by @lukasdreyer in #349
• Added more information to error message by @sandro-elsweijer in #367
• Update msh 4 comment by @sandro-elsweijer in #369
• Update pull_request_template.md by @Davknapp in #371
• Revert all ubuntu versions of github action to 20.04 by @holke in #373
• Improve documentation for element tree boundary functions by @holke in #372
• Clean up point inside check by @holke in #376
• Add const in signature of t8_element_num_corners in header file by @jmark in #379
• remove non-existent makefile source by @sandro-elsweijer in #381
• Prettify array initializations by @sandro-elsweijer in #382
• Fix issue #311 by @Flo1314 in #398
• Update pull_request_template.md by @sandro-elsweijer in #406
• update pr template by @sandro-elsweijer in #407
• Tree indexing documentation by @ililikakis in #414
• Removing testing line from PR template. by @holke in #416
• Fix issue 412 by @ililikakis in #415
• Add a new geometry example using different geoms in the same mesh. by @holke in #410
• Fix issue 383 by @sandro-elsweijer in #418
• Removed executable flag for two source code files in src/t8_cmesh. by @jmark in #420
• Fix issue 352 by @holke in #380
• Revert "Fix issue 352" by @holke in #427
• Reworked arguments of naca tutorial by @sandro-elsweijer in #425
• Clearify, which corner defines the face-orientation by @Davknapp in #431
• Adding step6 tutorial. by @jmark in #419
• Test cmesh face is boundary by @WeberJulia in #366
• test_descendant to gtest_descendant by @WeberJulia in #394
• Cleanup: Remove all if zero pragmas at once. by @jmark in #434
• Update indent script by @Davknapp in #440
• Revert "Update indent script" by @holke in #442
• test-successor to gtest-successor by @WeberJulia in #402
• remove outdated TODO comment by @lukasdreyer in #436
• Fix attribute offsets for multiple attributes by @lukasdreyer in #444

New Contributors

• @WeberJulia made their first contribution in #360

Full Changelog: v1.0.0...v1.1.0

v1.0.0

We are finally releasing version 1.0 of t8code!

t8code (spoken as "tetcode") is a C/C++ library to manage parallel adaptive meshes (AMR) with various element types. t8code uses a collection (a forest) of multiple connected adaptive space-trees in parallel and scales to at least one million MPI ranks and over 1 Trillion mesh elements.
t8code is designed as a third-party library to be used by numerical simulations or visualization codes. If you need fast, memory-efficient and scalable mesh management, t8code is your library of choice.

t8code, or T8 for short, supports the following element types (also different types in the same mesh):

• 0D: vertices
• 1D: lines
• 2D: quadrilaterals and triangles
• 3D: hexahedra, tetrahedra, prisms and pyramids

Among others, t8code offers the following functionalities:

• Create distributed adaptive meshes over complex domain geometries
• Adapt meshes according to user given refinement/coarsening criteria
• Establish a 2:1 balance
• (Re-)partition a mesh (and associated data) among MPI ranks
• Manage ghost (halo) elements and data
• Hierarchical search in the mesh
• Curved meshes

Visit the t8code website for more information.

What's Changed from the previous version

• Check whether a given geometry is linear. by @holke in #331
• Fix an uninitialized memory error in debug printing in partition by @holke in #335
• Make num_corners function const. by @holke in #334
• Feature tests by @Davknapp in #20
• More const parameter in second linear_id-test by @Davknapp in #337
• Add homepage to citation by @holke in #339
• Feature point inside for quads by @holke in #336

Full Changelog: v0.13.0...v1.0.0

Authors and Contributors

@holke @Davknapp @sandro-elsweijer @cburstedde @Veli-hub @lukasdreyer @ililikakis @jmark @jackerschott