OPM/opm-simulators
Feb 2025 – Nov 2025
5 Months active
Languages Used
C++
Technical Skills
C++C++ DevelopmentError HandlingNumerical MethodsNumerical SimulationSimulation
Erik Hide Saeternes
PROFILE
Erik Hide Saeternes
Erik H. Sæther developed and refined adaptive time stepping and control systems for the OPM/opm-simulators repository, focusing on simulation stability and maintainability. He introduced a General3rdOrder adaptive controller, enhanced error handling, and improved logging, using C++ and advanced numerical methods to ensure robust time-step management. Erik refactored core components for clarity, implemented enum-based state management, and expanded test coverage to support long-term reliability. He also addressed critical bugs in time-step indexing and nonlinear solver stability, while improving user-facing documentation for parameter tuning. His work demonstrated depth in C++ development, simulation engineering, and software documentation, resulting in measurable workflow improvements.
Overall Statistics
Feature vs Bugs
56%Features
Repository Contributions
26Total
Bugs
4
Commits
26
Features
5
Lines of code
1,066
Activity Months5
Your Network
35 peopleSame Organization
@simula.no4
Shared Repositories
31
Work History
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025: Delivered AdaptiveTimeStepping Parameter Documentation Enhancement for OPM/opm-simulators. Improved user-facing docs and help text for time-step control parameters, enabling faster, more reliable parameter tuning and reducing onboarding time. No major bugs fixed this month. Overall impact: improved usability, smoother experimentation cycles, and reduced support friction. Technologies/skills demonstrated include documentation best practices, Git-based collaboration, and domain knowledge of the AdaptiveTimeStepping module.
1 Commits • 1 Features
Nov 1, 2025November 2025: Delivered AdaptiveTimeStepping Parameter Documentation Enhancement for OPM/opm-simulators. Improved user-facing docs and help text for time-step control parameters, enabling faster, more reliable parameter tuning and reducing onboarding time. No major bugs fixed this month. Overall impact: improved usability, smoother experimentation cycles, and reduced support friction. Technologies/skills demonstrated include documentation best practices, Git-based collaboration, and domain knowledge of the AdaptiveTimeStepping module.
November 2025
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for OPM/opm-simulators: Implemented a critical bug fix to Adaptive Time Step Control by correcting indexing in TimeStepControl.cpp, ensuring the most recent error and time step values are used for adaptive stepping. This change enhances simulation stability and accuracy and reduces the likelihood of instability due to outdated control values. Commit: 903485ab44da9db13253b1c15e333f00184ea8ed ("Fixed indexing in control-error filtering").
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for OPM/opm-simulators: Implemented a critical bug fix to Adaptive Time Step Control by correcting indexing in TimeStepControl.cpp, ensuring the most recent error and time step values are used for adaptive stepping. This change enhances simulation stability and accuracy and reduces the likelihood of instability due to outdated control values. Commit: 903485ab44da9db13253b1c15e333f00184ea8ed ("Fixed indexing in control-error filtering").
June 2025
7 Commits • 1 Features
Jun 1, 2025June 2025: Focused improvements to adaptive time stepping in OPM/opm-simulators, including a Core Refactor of the Time Step Controller with enums, explicit verbosity controls, and improved logging; cleaned up default parameters and constructor initializations for clarity and stability. Fixed correctness and test failures in the General3rdOrderController, ensuring robust time-step constraints and serialization expectations. The combined work enhances long-running simulation stability, reduces debugging effort, and strengthens the foundation for future performance optimizations. Demonstrated technologies and skills include C++ refactoring, enum-based state management, enhanced logging, and a test-driven approach to correctness.
7 Commits • 1 Features
Jun 1, 2025June 2025: Focused improvements to adaptive time stepping in OPM/opm-simulators, including a Core Refactor of the Time Step Controller with enums, explicit verbosity controls, and improved logging; cleaned up default parameters and constructor initializations for clarity and stability. Fixed correctness and test failures in the General3rdOrderController, ensuring robust time-step constraints and serialization expectations. The combined work enhances long-running simulation stability, reduces debugging effort, and strengthens the foundation for future performance optimizations. Demonstrated technologies and skills include C++ refactoring, enum-based state management, enhanced logging, and a test-driven approach to correctness.
June 2025
May 2025
8 Commits • 1 Features
May 1, 2025May 2025 monthly summary for OPM/opm-simulators focused on stabilizing simulations and expanding adaptive stepping capabilities, delivering measurable reliability and tuning improvements for production workflows.
May 2025
8 Commits • 1 Features
May 1, 2025May 2025 monthly summary for OPM/opm-simulators focused on stabilizing simulations and expanding adaptive stepping capabilities, delivering measurable reliability and tuning improvements for production workflows.
February 2025
9 Commits • 2 Features
Feb 1, 2025February 2025: Delivered major improvements to adaptive time stepping and time-step control in OPM/opm-simulators, with a new General3rdOrder adaptive controller, enhanced tolerance handling, and robust robustness/refactoring of TimeStepControl. Expanded test coverage and serialization support to ensure configuration integrity and long-term stability for simulations. Key improvements include enhanced time stepping accuracy and safety with a configurable safety factor, improved handling of large steps and tolerance failures, and a refactor of TimeStepControl to be robust and maintainable using std::array-based internal calculations and proper includes.
9 Commits • 2 Features
Feb 1, 2025February 2025: Delivered major improvements to adaptive time stepping and time-step control in OPM/opm-simulators, with a new General3rdOrder adaptive controller, enhanced tolerance handling, and robust robustness/refactoring of TimeStepControl. Expanded test coverage and serialization support to ensure configuration integrity and long-term stability for simulations. Key improvements include enhanced time stepping accuracy and safety with a configurable safety factor, improved handling of large steps and tolerance failures, and a refactor of TimeStepControl to be robust and maintainable using std::array-based internal calculations and proper includes.
February 2025
Activity
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Quality Metrics
Correctness88.8%
Maintainability88.4%
Architecture86.6%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
Bug FixingBuild SystemsC++C++ DevelopmentC++ developmentCode ExplanationCode RefactoringControl SystemsDebuggingDocumentationError HandlingLoggingNumerical MethodsNumerical SimulationPerformance Optimization
Repositories Contributed To
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