dealii/dealii
Nov 2024 – May 2026
9 Months active
Languages Used
C++
Technical Skills
C++ Template MetaprogrammingLinear AlgebraNumerical MethodsPerformance OptimizationComputational GeometryFinite Element Methods
Dominik Still
PROFILE
Dominik Still
Dominik Still contributed to the dealii/dealii repository by engineering advanced finite element and computational geometry features, focusing on robust mesh handling and higher-order polynomial frameworks. He implemented orientation-aware quadrature, 3D mesh generation, and batched matrix-vector operations, using C++ and template metaprogramming to optimize performance and accuracy. His work included refactoring core algorithms, expanding test coverage, and enhancing reliability for complex geometric configurations. Dominik addressed edge cases in mesh refinement and improved code maintainability through targeted bug fixes and code quality improvements. These efforts enabled more precise simulations and flexible finite element workflows, demonstrating depth in C++ development and numerical methods.
Overall Statistics
Feature vs Bugs
86%Features
Repository Contributions
20Total
Bugs
2
Commits
20
Features
12
Lines of code
15,837
Activity Months9
Your Network
220 peopleWork History
May 2026
3 Commits • 1 Features
May 1, 2026May 2026 monthly summary for dealii/dealii: This period focused on strengthening the finite element polynomial framework with higher-order capabilities and improving code quality. Key feature delivery includes the Vandermonde-based base class for scalar polynomials and the addition of higher-order simplex support points in 2D/3D, enabling more accurate and flexible discretizations. A dedicated test suite was extended to cover support point logic, increasing reliability of higher-order elements. Minor code quality improvements were made by correcting typos in comments and test descriptions, improving maintainability. Collectively, these changes improve numerical accuracy, usability of the FEM framework, and maintainability of the codebase, supporting faster development of higher-order methods and more robust simulations. Technologies demonstrated include C++ with template-based design, unit testing, and rigorous code quality practices.
3 Commits • 1 Features
May 1, 2026May 2026 monthly summary for dealii/dealii: This period focused on strengthening the finite element polynomial framework with higher-order capabilities and improving code quality. Key feature delivery includes the Vandermonde-based base class for scalar polynomials and the addition of higher-order simplex support points in 2D/3D, enabling more accurate and flexible discretizations. A dedicated test suite was extended to cover support point logic, increasing reliability of higher-order elements. Minor code quality improvements were made by correcting typos in comments and test descriptions, improving maintainability. Collectively, these changes improve numerical accuracy, usability of the FEM framework, and maintainability of the codebase, supporting faster development of higher-order methods and more robust simulations. Technologies demonstrated include C++ with template-based design, unit testing, and rigorous code quality practices.
May 2026
April 2026
1 Commits • 1 Features
Apr 1, 2026Monthly summary for 2026-04: Delivered a wedge orientation enhancement in deal.II with orientation-aware handling for wedge reference cells, plus validation tests; no major bug fixes this period; overall impact: improved robustness and simulation accuracy with wedge meshes; activities demonstrate strong C++/deal.II proficiency and test coverage, contributing to reliability of downstream simulations.
April 2026
1 Commits • 1 Features
Apr 1, 2026Monthly summary for 2026-04: Delivered a wedge orientation enhancement in deal.II with orientation-aware handling for wedge reference cells, plus validation tests; no major bug fixes this period; overall impact: improved robustness and simulation accuracy with wedge meshes; activities demonstrate strong C++/deal.II proficiency and test coverage, contributing to reliability of downstream simulations.
February 2026
5 Commits • 3 Features
Feb 1, 2026February 2026 monthly summary for dealii/dealii focusing on key features, bugs fixed, and impact. Delivered reliability improvements in the DoF Handler, expanded pyramid geometry with quadratic/cubic elements and tip gradient calculations, and enhanced FE_WedgePoly configurability to support non-additive prolongation. These changes strengthen numerical stability, geometric accuracy, and configuration flexibility, enabling more robust simulations and broader applicability across FEM workflows.
5 Commits • 3 Features
Feb 1, 2026February 2026 monthly summary for dealii/dealii focusing on key features, bugs fixed, and impact. Delivered reliability improvements in the DoF Handler, expanded pyramid geometry with quadratic/cubic elements and tip gradient calculations, and enhanced FE_WedgePoly configurability to support non-additive prolongation. These changes strengthen numerical stability, geometric accuracy, and configuration flexibility, enabling more robust simulations and broader applicability across FEM workflows.
February 2026
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for dealii/dealii: Implemented 3D GridGenerator support by extending the simplex_to_hypercube transformation to handle 3D meshes, enabling more complex geometries in simulations. This work enhances modeling capabilities for CFD and structural analyses that rely on detailed meshing. All changes are tracked with a dedicated commit for traceability and future audits.
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for dealii/dealii: Implemented 3D GridGenerator support by extending the simplex_to_hypercube transformation to handle 3D meshes, enabling more complex geometries in simulations. This work enhances modeling capabilities for CFD and structural analyses that rely on detailed meshing. All changes are tracked with a dedicated commit for traceability and future audits.
December 2025
4 Commits • 2 Features
Dec 1, 2025Summary for 2025-12: Focused on strengthening triangulation reliability and test coverage in the deal.ii repository to reduce defect risk and accelerate future development. Key delivered features include a Triangulation Testing Framework and robustness enhancements for the simplex module, plus an Opposite Face Index computation to improve handling of mixed 2D meshes. A critical bug fix addressed incorrect face guessing for 2D mixed meshes. These efforts improve geometry configuration validation, neighbor/orientation correctness, and test maintainability, delivering higher confidence in production workflows and reducing debugging time for mesh-based simulations. Demonstrated skills in C++ engineering, test framework development, geometry reasoning, and maintaining code quality with formatting upgrades in test suites.
4 Commits • 2 Features
Dec 1, 2025Summary for 2025-12: Focused on strengthening triangulation reliability and test coverage in the deal.ii repository to reduce defect risk and accelerate future development. Key delivered features include a Triangulation Testing Framework and robustness enhancements for the simplex module, plus an Opposite Face Index computation to improve handling of mixed 2D meshes. A critical bug fix addressed incorrect face guessing for 2D mixed meshes. These efforts improve geometry configuration validation, neighbor/orientation correctness, and test maintainability, delivering higher confidence in production workflows and reducing debugging time for mesh-based simulations. Demonstrated skills in C++ engineering, test framework development, geometry reasoning, and maintaining code quality with formatting upgrades in test suites.
December 2025
November 2025
3 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for dealii/dealii focused on improving correctness and test robustness for neighbor_child_on_subface across subfaces of triangles and quadrilaterals. Implemented a refactor of the neighbor child on subface logic with correct handling for triangular and quadrilateral reference cells and stronger assertions to prevent errors in child refinement cases. Expanded the testing surface with comprehensive coverage and debugging instrumentation.
November 2025
3 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for dealii/dealii focused on improving correctness and test robustness for neighbor_child_on_subface across subfaces of triangles and quadrilaterals. Implemented a refactor of the neighbor child on subface logic with correct handling for triangular and quadrilateral reference cells and stronger assertions to prevent errors in child refinement cases. Expanded the testing surface with comprehensive coverage and debugging instrumentation.
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for dealii/dealii: Implemented QProjector Subface Quadrature for Triangular Elements, extending QProjector to support subface quadratures, adjusting area ratio calculations on subfaces, and adding tests to validate correct projection and handling of quadrature points and weights. Commit 560b90c943e348ba8c40383c5a05ff2e10f4d4af enabled 'Enable subface quadratures for triangles'. No critical bugs fixed this month; maintained stability and expanded test coverage. Overall impact: improved projection accuracy on triangular meshes, enabling more precise FEM workflows and stronger numerical reliability. Technologies/skills demonstrated: C++/template-based FEM code, test-driven development, unit testing, area-ratio computations, and performance-conscious code changes.
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for dealii/dealii: Implemented QProjector Subface Quadrature for Triangular Elements, extending QProjector to support subface quadratures, adjusting area ratio calculations on subfaces, and adding tests to validate correct projection and handling of quadrature points and weights. Commit 560b90c943e348ba8c40383c5a05ff2e10f4d4af enabled 'Enable subface quadratures for triangles'. No critical bugs fixed this month; maintained stability and expanded test coverage. Overall impact: improved projection accuracy on triangular meshes, enabling more precise FEM workflows and stronger numerical reliability. Technologies/skills demonstrated: C++/template-based FEM code, test-driven development, unit testing, area-ratio computations, and performance-conscious code changes.
May 2025
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 — Focused on expanding deal.II geometry capabilities with precise, orientation-aware quadrature on subfaces in dealii/dealii. Delivered Subface Orientation-Aware Quadrature, refactored core quadrature routing, and updated data structures and tests to support non-standard oriented subfaces. Achieved more accurate integration over complex geometries and improved robustness for simulations relying on deal.II.
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 — Focused on expanding deal.II geometry capabilities with precise, orientation-aware quadrature on subfaces in dealii/dealii. Delivered Subface Orientation-Aware Quadrature, refactored core quadrature routing, and updated data structures and tests to support non-standard oriented subfaces. Achieved more accurate integration over complex geometries and improved robustness for simulations relying on deal.II.
November 2024
1 Commits • 1 Features
Nov 1, 2024Delivered Batched Matrix-Vector Product Enhancement for dealii/dealii, enabling up to 3-component parallel processing to boost performance. Updated loops and function calls to support batched operations and added tests to validate functionality and regression coverage. No major bugs fixed this month; primary focus on performance optimization and code quality.
1 Commits • 1 Features
Nov 1, 2024Delivered Batched Matrix-Vector Product Enhancement for dealii/dealii, enabling up to 3-component parallel processing to boost performance. Updated loops and function calls to support batched operations and added tests to validate functionality and regression coverage. No major bugs fixed this month; primary focus on performance optimization and code quality.
November 2024
Activity
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Quality Metrics
Correctness96.0%
Maintainability84.0%
Architecture90.4%
Performance85.0%
AI Usage22.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
C++C++ DevelopmentC++ Template MetaprogrammingC++ developmentC++ programmingComputational GeometryComputational geometryFinite Element AnalysisFinite Element MethodsGeometric modelingLinear AlgebraMesh GenerationNumerical IntegrationNumerical MethodsObject-Oriented Programming
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