EXCEEDS logo
Exceeds
Roy Stogner

PROFILE

Roy Stogner

Over 14 months, contributed to the idaholab/moose repository by engineering robust mesh generation, geometry processing, and simulation infrastructure using C++ and Python. Delivered 33 features and resolved 18 bugs, focusing on LibMesh integration, API modernization, and performance optimization for finite element workflows. Enhanced mesh tooling with new algorithms, improved compatibility with PETSc and VTK, and strengthened error handling and test reliability. Applied code refactoring, build system configuration, and technical writing to support maintainability and reproducibility. The work enabled scalable, high-fidelity simulations, streamlined developer experience, and ensured stable releases for downstream users in computational mechanics and scientific computing.

Overall Statistics

Feature vs Bugs

65%Features

Repository Contributions

121Total
Bugs
18
Commits
121
Features
33
Lines of code
5,297
Activity Months14

Your Network

204 people

Shared Repositories

146

Work History

April 2026

4 Commits • 2 Features

Apr 1, 2026

April 2026 (2026-04) monthly summary for idaholab/moose. Focused on delivering parallel-performance improvements for time integration, stabilizing GCC-PETSc interfaces, and improving PETSc options handling through refactoring and const-correctness. Highlights include faster, more scalable simulations; a more robust build with GCC+PETSc; and safer, more maintainable code.

December 2025

4 Commits • 1 Features

Dec 1, 2025

December 2025 monthly summary for idaholab/moose: Focused on code modernization to improve compatibility with libMesh and hardening mesh readiness controls to preserve test integrity, thereby reducing risk of regressions in CI and simulations. Delivered targeted changes across code and mesh handling, aligning with libMesh evolution and peridynamics workflows.

November 2025

18 Commits • 2 Features

Nov 1, 2025

November 2025 performance summary: Delivered key mesh reliability and error-handling enhancements in idaholab/moose. Implemented the displace_node_list_by_side_list feature with tests, defaults, and an input file; ensured new nodesets inherit side IDs for idempotent displacement; added regression tests and documentation updates to clarify usage and maintainability. Fixed boundary condition ID wrap-around and ensured consistent naming across distributed meshes. Strengthened Jacobian-related error handling across ElementJacobianDamper and mesh diagnostics, with safer exception paths and targeted rethrows; improved 2D+devel test stability. Achievements collectively reduce regression risk, improve mesh generation accuracy, and enable safer distributed runs, delivering business value and elevating code quality. Technologies: C++, libMesh, regression tests, test-driven development, exception handling, formatting, documentation.

October 2025

2 Commits

Oct 1, 2025

October 2025: Delivered targeted test-configuration changes and robustness enhancements for idaholab/moose, focusing on improving CI stability and debugging efficiency without altering core mesh functionality. Key changes included a LibMesh test parallelism workaround to cap parallel processes at 2 ranks for file mesh generator tests, unblocking the testing pipeline; and enhanced error handling in PenetrationThread to emit explicit messages when no proximate elements are found during large deformation or mesh inconsistencies, preventing segfaults and aiding diagnosis. These updates reduce pipeline downtime, clarify failure modes, and accelerate iteration on mesh-related work.

September 2025

30 Commits • 12 Features

Sep 1, 2025

September 2025 monthly summary for idaholab/moose focused on expanding and stabilizing the point locator search pathway, expanding GeometricSearchInterface, and improving data handling and developer experience. Key outcomes include a renamed and extended search API, broader kernel support for search, robust tests for new parameters and p_info selection, and improvements to typing, code quality, and documentation. These changes collectively improve simulation accuracy, reach, and maintainability while reducing risk for downstream users and contributors.

August 2025

12 Commits • 4 Features

Aug 1, 2025

August 2025 focused on expanding robustness, configurability, and release-readiness in idaholab/moose, with concrete gains in geometry handling, boundary control, parameter exposure, and test stability. Key work included delivering a robust Penetration search with PointLocator integration, enhanced mesh-break boundary control, and broader GeometricSearchInterface parameter registration. The LibMesh 2025.08 release updates add support for vector-valued MeshFunction data and std::set in Parameters, while targeted test stability improvements reduce Valgrind-related timeouts. Minor readability improvements were addressed to sustain maintainability and code quality. These changes collectively improve model fidelity, user configurability, test reliability, and overall release quality, enabling more robust simulations and faster iteration cycles for customers and internal teams.

July 2025

3 Commits

Jul 1, 2025

July 2025 – Monthly summary for idaholab/moose focused on reliability, maintainability, and robustness of the attachment workflow and ghosting management within the libMesh integration. Delivered targeted edits to strengthen the correctness of early-attach handling, deprecated paths cleaned up to reduce maintenance risk, and defensive checks added to guard ghosting-related operations across SubProblem workflows.

June 2025

11 Commits • 3 Features

Jun 1, 2025

June 2025 – Performance and reliability improvements across idaholab/moose. Delivered core performance and maintenance work, upgraded LibMesh/TIMPI for better mesh processing, and enhanced StitchedMeshGenerator with user-controlled stitching options and robust tests. These changes boost runtime efficiency, stability, and compatibility while strengthening testing and release readiness.

May 2025

6 Commits • 2 Features

May 1, 2025

May 2025 summary: LibMesh core enhancements and API modernization integrated into the May release, with build-system hardening to ensure clean, reproducible builds. Deliverables include API updates, mesh capabilities, MATLAB I/O, and release-note alignment, driving stability, usability, and maintainability for Moose users and developers.

April 2025

3 Commits

Apr 1, 2025

April 2025 (ID: 2025-04) - Focused on stability, compatibility, and reliability improvements in idaholab/moose. No new user-facing features this month; delivered critical infrastructure updates to improve cross-version build compatibility with VTK and to harden the mesh processing pipeline, reducing test failures and enabling smoother long-term development velocity. These changes lay groundwork for future feature work and faster integration cycles.

March 2025

15 Commits • 2 Features

Mar 1, 2025

March 2025 monthly summary for idaholab/moose: Focused on maintainability and numerical robustness through LibMesh API modernization and new preconditioning capability for Flex IGA meshes. Delivered two features with substantial commit-level work, improved upstream compatibility, and added unit tests to validate core changes. No standalone bug fixes were reported this month; main gains come from refactoring and performance/stability improvements with an eye toward upstream libMesh changes and CI reliability.

February 2025

5 Commits • 2 Features

Feb 1, 2025

February 2025 (Month: 2025-02) delivered focused improvements in stability, performance, and release readiness for idaholab/moose. Key work included a major LibMesh submodule upgrade with enhanced element calculations, TIMPI communications, multithreading robustness, and new preconditioning and MPI threading options, accompanied by updated release notes and documentation. An API compatibility fix for ArbitraryQuadrature aligned with libMesh::QBase API changes to maintain backward compatibility across versions via conditional compilation. Versioning and packaging metadata were refreshed to reflect the latest development state and ensure correct versioning for libMesh, moose-dev, and related dependencies. These efforts collectively improve runtime efficiency, scalability, maintainability, and support smoother, well-documented releases.

December 2024

6 Commits • 2 Features

Dec 1, 2024

December 2024 | idaholab/moose — Key deliverables included LibMesh core improvements with configurability options, an upgraded submodule with pinned dependencies for reproducible builds, and stability improvements to distributed mesh tests. These changes deliver better configurability, reliability, and reproducibility for users and downstream projects.

November 2024

2 Commits • 1 Features

Nov 1, 2024

November 2024 monthly summary for idaholab/moose focusing on delivery of the LibMesh submodule upgrade with API enhancements and meshtool improvements. This work delivered a strengthened mesh tooling stack, improved compatibility with downstream solvers, and a solid foundation for expanded future features.

Activity

Loading activity data...

Quality Metrics

Correctness90.8%
Maintainability88.6%
Architecture87.2%
Performance81.8%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++CSVINIMarkdownN/ANonePythonYAML

Technical Skills

3D MeshingAPI IntegrationAPI UpdateAPI UpdatesAlgorithm OptimizationBug FixingBuild ScriptingBuild System ConfigurationBuild SystemsC++C++ DevelopmentC++ developmentC++ programmingCode DeprecationCode Documentation

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

idaholab/moose

Nov 2024 Apr 2026
14 Months active

Languages Used

C++MarkdownPythonN/AYAMLCSVININone

Technical Skills

Build SystemsC++ DevelopmentDocumentationFinite Element MethodsSubmodule ManagementBuild System Configuration