hiddenSymmetries/simsopt
Nov 2024 – Jun 2026
11 Months active
Languages Used
DockerfilePythonYAMLC++RSTJAXMarkdown
Technical Skills
CI/CDDependency ManagementDockerDebuggingGitHub ActionsNumerical Analysis
Matt Landreman
PROFILE
Matt Landreman
Worked extensively on the hiddenSymmetries/simsopt repository, delivering features and infrastructure that improved simulation accuracy, code maintainability, and developer productivity. Focused on surface geometry enhancements, robust parameterization, and spectral condensation algorithms, the work included implementing new utilities for angle manipulation, refining optimization routines, and expanding documentation for user onboarding. Leveraged Python and C++ to modernize CI/CD pipelines using GitHub Actions and Docker, ensuring reliable cross-platform builds and automated testing. Addressed numerical stability and edge-case handling in scientific computing workflows, while maintaining code quality through continuous integration and thorough unit testing. The contributions enabled more reliable experimentation and streamlined development cycles.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
79Total
Bugs
9
Commits
79
Features
27
Lines of code
1,125,171
Activity Months11
Your Network
70 peopleShared Repositories
20
Work History
June 2026
1 Commits • 1 Features
Jun 1, 2026June 2026: Implemented CI/CD automation for the Simsopt project with GitHub Actions, Docker and Conda workflows. Enabled automated build/test pipelines and groundwork for extensive testing and documentation generation, improving reliability and deployment readiness. Also fixed PR workflow login issues to stabilize CI/CD pipelines and reduce manual intervention.
1 Commits • 1 Features
Jun 1, 2026June 2026: Implemented CI/CD automation for the Simsopt project with GitHub Actions, Docker and Conda workflows. Enabled automated build/test pipelines and groundwork for extensive testing and documentation generation, improving reliability and deployment readiness. Also fixed PR workflow login issues to stabilize CI/CD pipelines and reduce manual intervention.
June 2026
January 2026
6 Commits • 3 Features
Jan 1, 2026January 2026 monthly summary for hiddenSymmetries/simsopt: Delivered critical accuracy improvements, robustness enhancements, and infrastructure polish that collectively increase simulation fidelity, reliability, and developer productivity. The work strengthened surface representation, tightened optimization under bounds, enriched visualization capabilities, and improved CI/CD and documentation, enabling more reliable experimentation and faster iterations.
January 2026
6 Commits • 3 Features
Jan 1, 2026January 2026 monthly summary for hiddenSymmetries/simsopt: Delivered critical accuracy improvements, robustness enhancements, and infrastructure polish that collectively increase simulation fidelity, reliability, and developer productivity. The work strengthened surface representation, tightened optimization under bounds, enriched visualization capabilities, and improved CI/CD and documentation, enabling more reliable experimentation and faster iterations.
December 2025
25 Commits • 6 Features
Dec 1, 2025December 2025 monthly summary focusing on delivering higher value through robust spectral condensation work, cross-platform stability, and improved testing/documentation. The month consolidated core algorithm improvements with a focus on performance, reliability, and maintainability, while ensuring CI pipelines and tests scale with platform changes and external requests.
25 Commits • 6 Features
Dec 1, 2025December 2025 monthly summary focusing on delivering higher value through robust spectral condensation work, cross-platform stability, and improved testing/documentation. The month consolidated core algorithm improvements with a focus on performance, reliability, and maintainability, while ensuring CI pipelines and tests scale with platform changes and external requests.
December 2025
November 2025
8 Commits • 5 Features
Nov 1, 2025November 2025: Focused on strengthening surface parameterization, improving symmetry operations, and stabilizing the development pipeline. Key work spanned new angle-flip utilities, spectral condensation, documentation improvements, and CI/CD hardening.
November 2025
8 Commits • 5 Features
Nov 1, 2025November 2025: Focused on strengthening surface parameterization, improving symmetry operations, and stabilizing the development pipeline. Key work spanned new angle-flip utilities, spectral condensation, documentation improvements, and CI/CD hardening.
October 2025
4 Commits • 3 Features
Oct 1, 2025In October 2025, the simsopt repository delivered core surface geometry enhancements for SurfaceRZFourier, improving orientation handling and toroidal/poloidal transformations to enable more accurate simulations. The work emphasized test health and non-breaking API improvements, aligning with long-term stability and maintainability goals.
4 Commits • 3 Features
Oct 1, 2025In October 2025, the simsopt repository delivered core surface geometry enhancements for SurfaceRZFourier, improving orientation handling and toroidal/poloidal transformations to enable more accurate simulations. The work emphasized test health and non-breaking API improvements, aligning with long-term stability and maintainability goals.
October 2025
June 2025
2 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for hiddenSymmetries/simsopt focusing on delivering precise simulation controls and improving code maintainability. The month emphasized API refinement and documentation to support research-backed configurations. No major bug fixes documented in the scope of this repo for this period; changes aimed at robustness through clearer interfaces and maintainable code paths.
June 2025
2 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for hiddenSymmetries/simsopt focusing on delivering precise simulation controls and improving code maintainability. The month emphasized API refinement and documentation to support research-backed configurations. No major bug fixes documented in the scope of this repo for this period; changes aimed at robustness through clearer interfaces and maintainable code paths.
May 2025
10 Commits • 3 Features
May 1, 2025May 2025 performance summary for hiddenSymmetries/simsopt focusing on feature delivery, bug fixes, and infrastructure improvements that enhance usability, reliability, and maintainability. Key outcomes include comprehensive documentation enhancements, alignment of CurveHelical with simsopt conventions, robust handling of non-uniform phi in extend_via_normal, and expanded CI/config testing coverage.
10 Commits • 3 Features
May 1, 2025May 2025 performance summary for hiddenSymmetries/simsopt focusing on feature delivery, bug fixes, and infrastructure improvements that enhance usability, reliability, and maintainability. Key outcomes include comprehensive documentation enhancements, alignment of CurveHelical with simsopt conventions, robust handling of non-uniform phi in extend_via_normal, and expanded CI/config testing coverage.
May 2025
March 2025
8 Commits • 2 Features
Mar 1, 2025March 2025 monthly summary for hiddenSymmetries/simsopt focusing on user guidance, numerical robustness, and CI reliability. Key work centered on wireframe documentation improvements with enhanced Sphinx rendering, robustness fixes for surface parameterization, and CI/test stability enhancements to reduce flaky builds. The work emphasizes delivering business value through clearer guidance for users, more reliable geometry computations, and faster PR validation.
March 2025
8 Commits • 2 Features
Mar 1, 2025March 2025 monthly summary for hiddenSymmetries/simsopt focusing on user guidance, numerical robustness, and CI reliability. Key work centered on wireframe documentation improvements with enhanced Sphinx rendering, robustness fixes for surface parameterization, and CI/test stability enhancements to reduce flaky builds. The work emphasizes delivering business value through clearer guidance for users, more reliable geometry computations, and faster PR validation.
February 2025
5 Commits • 1 Features
Feb 1, 2025February 2025: Consolidated and accelerated wheel packaging CI for hiddenSymmetries/simsopt by aligning the workflow with cibuildwheel examples and pruning unstable builds, resulting in faster feedback and more reliable wheel artifacts.
5 Commits • 1 Features
Feb 1, 2025February 2025: Consolidated and accelerated wheel packaging CI for hiddenSymmetries/simsopt by aligning the workflow with cibuildwheel examples and pruning unstable builds, resulting in faster feedback and more reliable wheel artifacts.
February 2025
January 2025
9 Commits • 1 Features
Jan 1, 2025January 2025: Stabilized and modernized the CI/testing pipeline for simsopt, improved test robustness across platforms, and prepared groundwork for more reliable builds and accelerated feedback loops. This month focused on CI infrastructure refresh, targeted test hardening, and ensuring near-term release readiness across Ubuntu and macOS environments.
January 2025
9 Commits • 1 Features
Jan 1, 2025January 2025: Stabilized and modernized the CI/testing pipeline for simsopt, improved test robustness across platforms, and prepared groundwork for more reliable builds and accelerated feedback loops. This month focused on CI infrastructure refresh, targeted test hardening, and ensuring near-term release readiness across Ubuntu and macOS environments.
November 2024
1 Commits
Nov 1, 2024November 2024 monthly summary for the hiddenSymmetries/simsopt repository focused on stabilizing CI builds and ensuring reliable HPC integration. Delivered a targeted workaround to known Shifter/NERSC compatibility issues by pinning mpi4py to <4.0 in the Dockerfile, preventing upstream CI/build-time failures and enabling consistent test execution in HPC environments.
1 Commits
Nov 1, 2024November 2024 monthly summary for the hiddenSymmetries/simsopt repository focused on stabilizing CI builds and ensuring reliable HPC integration. Delivered a targeted workaround to known Shifter/NERSC compatibility issues by pinning mpi4py to <4.0 in the Dockerfile, preventing upstream CI/build-time failures and enabling consistent test execution in HPC environments.
November 2024
Activity
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Quality Metrics
Correctness89.8%
Maintainability89.4%
Architecture86.6%
Performance84.4%
AI Usage21.0%
Skills & Technologies
Programming Languages
C++DockerfileJAXMarkdownPythonRSTYAML
Technical Skills
C++C++ DevelopmentCI/CDCode RefactoringConfiguration ManagementContinuous DeploymentContinuous IntegrationDebuggingDependency ManagementDevOpsDockerDocumentationError HandlingGeometryGit
Repositories Contributed To
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