dealii/dealii
Nov 2024 – Jun 2026
10 Months active
Languages Used
C++
Technical Skills
C++ Template MetaprogrammingLinear AlgebraNumerical MethodsPerformance OptimizationComputational GeometryFinite Element Methods
Dominik Still
PROFILE
Dominik Still
Over ten months, contributed advanced finite element and computational geometry features to the dealii/dealii repository, focusing on mesh generation, quadrature, and polynomial frameworks. Developed orientation-aware quadrature, higher-order simplex support points, and 3D mesh generation by extending core algorithms and data structures in C++ with template metaprogramming. Enhanced numerical integration accuracy through new Stroud quadrature rules and arbitrary order support for pyramidal elements. Improved code maintainability with robust unit testing, const-correctness, and expanded test frameworks. Addressed geometric edge cases and refined neighbor relationships, strengthening simulation reliability. Demonstrated expertise in C++, finite element analysis, and performance optimization within complex scientific software.
Overall Statistics
Feature vs Bugs
89%Features
Repository Contributions
25Total
Bugs
2
Commits
25
Features
16
Lines of code
29,149,895
Activity Months10
Your Network
234 peopleWork History
June 2026
5 Commits • 4 Features
Jun 1, 2026June 2026 monthly summary for dealii/dealii: Key features delivered and code quality improvements expanding quadrature capabilities across simplex and pyramidal geometries, with refactored DOF identities and const-correctness improvements.
5 Commits • 4 Features
Jun 1, 2026June 2026 monthly summary for dealii/dealii: Key features delivered and code quality improvements expanding quadrature capabilities across simplex and pyramidal geometries, with refactored DOF identities and const-correctness improvements.
June 2026
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.
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.
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.
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
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.
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.
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.
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
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.
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.
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.
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
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.
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.
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.
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
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.
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.
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Quality Metrics
Correctness95.2%
Maintainability84.8%
Architecture90.8%
Performance84.8%
AI Usage22.4%
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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