OpenModelica/OpenModelica
Oct 2024 – Feb 2026
12 Months active
Languages Used
C++CMakeModelicaMakefileQMLC
Technical Skills
Build SystemCode RefactoringFMU ExportPath ManagementBuild SystemsC++
arun3688
PROFILE
Arun3688
Overall Statistics
Feature vs Bugs
64%Features
Repository Contributions
23Total
Bugs
8
Commits
23
Features
14
Lines of code
1,481
Activity Months12
Your Network
11 people
Work History
February 2026
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for OpenModelica/OpenModelica: Key features delivered and bugs fixed focused on modeling accuracy and data workflow reliability. The team implemented targeted fixes to Modelica state estimation and boundary condition handling and improved data reconciliation output organization, delivering tangible business value through more reliable simulations and easier data consumption.
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for OpenModelica/OpenModelica: Key features delivered and bugs fixed focused on modeling accuracy and data workflow reliability. The team implemented targeted fixes to Modelica state estimation and boundary condition handling and improved data reconciliation output organization, delivering tangible business value through more reliable simulations and easier data consumption.
February 2026
January 2026
2 Commits • 2 Features
Jan 1, 2026January 2026: Focused on enhancing reporting flexibility and data reconciliation in OpenModelica. Key features shipped include dynamic output path handling for reports and data reconciliation enhancements in Modelica, improving reporting customization and data integrity across simulations. No major bugs fixed this month. Overall impact: streamlined workflow, reduced manual configuration, and stronger foundation for data-driven decision-making in model verification and reporting. Technologies/skills demonstrated: Modelica modeling, boundary condition algorithm improvements, data reconciliation workflows, and credible commit traceability.
January 2026
2 Commits • 2 Features
Jan 1, 2026January 2026: Focused on enhancing reporting flexibility and data reconciliation in OpenModelica. Key features shipped include dynamic output path handling for reports and data reconciliation enhancements in Modelica, improving reporting customization and data integrity across simulations. No major bugs fixed this month. Overall impact: streamlined workflow, reduced manual configuration, and stronger foundation for data-driven decision-making in model verification and reporting. Technologies/skills demonstrated: Modelica modeling, boundary condition algorithm improvements, data reconciliation workflows, and credible commit traceability.
December 2025
2 Commits • 2 Features
Dec 1, 2025December 2025 (OpenModelica/OpenModelica) monthly summary focused on delivering data-reconciliation improvements and validation enhancements with clear business value and technical merit.
2 Commits • 2 Features
Dec 1, 2025December 2025 (OpenModelica/OpenModelica) monthly summary focused on delivering data-reconciliation improvements and validation enhancements with clear business value and technical merit.
December 2025
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for OpenModelica/OpenModelica focused on improving documentation quality and user experience for the translateModelFMU function. This work reduces deprecated warnings, clarifies usage, and sets a foundation for smoother adoption and fewer user errors in FMU translation workflows.
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for OpenModelica/OpenModelica focused on improving documentation quality and user experience for the translateModelFMU function. This work reduces deprecated warnings, clarifies usage, and sets a foundation for smoother adoption and fewer user errors in FMU translation workflows.
October 2025
1 Commits
Oct 1, 2025October 2025 monthly summary for OpenModelica/OpenModelica: Delivered robustness enhancements for time-event handling when states or event indicators may be missing, and added end-to-end validation with a new test model sinus.mos. These changes reduce runtime errors, improve model export/simulation reliability, and bolster user confidence in edge cases. Major bug fix: prevent errors during time events when no states/indicators are defined. Tech stack and practices demonstrated: Modelica runtime checks, test-driven development, and regression testing, with clear commit history for traceability.
1 Commits
Oct 1, 2025October 2025 monthly summary for OpenModelica/OpenModelica: Delivered robustness enhancements for time-event handling when states or event indicators may be missing, and added end-to-end validation with a new test model sinus.mos. These changes reduce runtime errors, improve model export/simulation reliability, and bolster user confidence in edge cases. Major bug fix: prevent errors during time events when no states/indicators are defined. Tech stack and practices demonstrated: Modelica runtime checks, test-driven development, and regression testing, with clear commit history for traceability.
October 2025
June 2025
4 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for OpenModelica/OpenModelica: Focused on reliability, traceability, and test robustness across data reconciliation, model file handling, and simulation validation. Implemented fixes and features that improve multi-run reliability, reporting accuracy, and test efficiency, delivering measurable business value and technical improvements for reproducibility and maintainability.
June 2025
4 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for OpenModelica/OpenModelica: Focused on reliability, traceability, and test robustness across data reconciliation, model file handling, and simulation validation. Implemented fixes and features that improve multi-run reliability, reporting accuracy, and test efficiency, delivering measurable business value and technical improvements for reproducibility and maintainability.
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for OpenModelica/OpenModelica: Focused on boosting data ingestion robustness by enabling URI path resolution and hardening data reconciliation for URI-based inputs. This work reduces input errors, enhances reliability of data loading, and supports URI-formatted inputs in production environments.
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for OpenModelica/OpenModelica: Focused on boosting data ingestion robustness by enabling URI path resolution and hardening data reconciliation for URI-based inputs. This work reduces input errors, enhances reliability of data loading, and supports URI-formatted inputs in production environments.
May 2025
April 2025
3 Commits • 3 Features
Apr 1, 2025Concise monthly summary for 2025-04 focused on delivering robust FMU packaging and maintaining external dependencies in OpenModelica/OpenModelica. The month prioritized improving FMU build reliability, enhancing cross-platform solver integration, and aligning external dependencies to support downstream usage and model exchange.
April 2025
3 Commits • 3 Features
Apr 1, 2025Concise monthly summary for 2025-04 focused on delivering robust FMU packaging and maintaining external dependencies in OpenModelica/OpenModelica. The month prioritized improving FMU build reliability, enhancing cross-platform solver integration, and aligning external dependencies to support downstream usage and model exchange.
March 2025
1 Commits
Mar 1, 2025Month: 2025-03 — OpenModelica/OpenModelica focused on correctness and stability of FMU-based CVODE simulations. A key bug fix addressed the propagation of the current state values within the CVODE right-hand side function, preventing incorrect values from y into localData and ensuring accurate subsequent calculations in FMU simulations. This work enhances reliability for users relying on CVODE-based FMUs and reduces downstream model drift.
1 Commits
Mar 1, 2025Month: 2025-03 — OpenModelica/OpenModelica focused on correctness and stability of FMU-based CVODE simulations. A key bug fix addressed the propagation of the current state values within the CVODE right-hand side function, preventing incorrect values from y into localData and ensuring accurate subsequent calculations in FMU simulations. This work enhances reliability for users relying on CVODE-based FMUs and reduces downstream model drift.
March 2025
December 2024
2 Commits
Dec 1, 2024December 2024: FMI export and FMU packaging stabilization for OpenModelica. Focused on fixing high-impact export/interoperability issues and strengthening the FMU build process. Key features delivered include robust FMI export handling for RealFFT and ensured FMU headers are correctly included in builds. Enhanced test coverage (RealFFT1) to guard against regressions. Business value includes fewer export-time errors, smoother FMU generation, and improved interoperability with downstream tools.
December 2024
2 Commits
Dec 1, 2024December 2024: FMI export and FMU packaging stabilization for OpenModelica. Focused on fixing high-impact export/interoperability issues and strengthening the FMU build process. Key features delivered include robust FMI export handling for RealFFT and ensured FMU headers are correctly included in builds. Enhanced test coverage (RealFFT1) to guard against regressions. Business value includes fewer export-time errors, smoother FMU generation, and improved interoperability with downstream tools.
November 2024
3 Commits • 2 Features
Nov 1, 2024In November 2024, the OpenModelica/OpenModelica work focused on stabilizing FMU export workflows, enriching export metadata, and hardening resource export/import paths. Key improvements enhance build control, metadata compliance, and runtime interoperability while reducing crash risk for end users.
3 Commits • 2 Features
Nov 1, 2024In November 2024, the OpenModelica/OpenModelica work focused on stabilizing FMU export workflows, enriching export metadata, and hardening resource export/import paths. Key improvements enhance build control, metadata compliance, and runtime interoperability while reducing crash risk for end users.
November 2024
October 2024
1 Commits
Oct 1, 2024Month 2024-10: Stabilized the FMU export workflow in OpenModelica by addressing a path-length issue that caused build failures. Implemented a hashing-based approach to generate short, stable temporary directories based on model names, ensuring reliable FMU exports across environments and CI pipelines.
October 2024
1 Commits
Oct 1, 2024Month 2024-10: Stabilized the FMU export workflow in OpenModelica by addressing a path-length issue that caused build failures. Implemented a hashing-based approach to generate short, stable temporary directories based on model names, ensuring reliable FMU exports across environments and CI pipelines.
Activity
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Quality Metrics
Correctness84.0%
Maintainability81.8%
Architecture79.2%
Performance74.4%
AI Usage22.6%
Skills & Technologies
Programming Languages
CC++CMakeMakefileModelicaQML
Technical Skills
Build SystemBuild System ConfigurationBuild SystemsCC ProgrammingC++C++ DevelopmentC++ developmentC++ programmingC/C++ DevelopmentCode GenerationCode RefactoringCompiler BackendCompiler DevelopmentData Reconciliation
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline