OPM/opm-simulators
Feb 2025 – Sep 2025
4 Months active
Languages Used
C++
Technical Skills
C++C++ DevelopmentError HandlingNumerical MethodsNumerical SimulationSimulation
Erik Hide Saeternes
PROFILE
Erik Hide Saeternes
Erik Hovland Sørbø developed and refined adaptive time stepping and control algorithms in 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. His work included refactoring core time step control logic with enum-based state management and explicit parameterization, as well as expanding test coverage to ensure long-term reliability. By addressing bugs in step factor calculations and tightening constructor initializations, Erik delivered robust, auditable improvements that reduced simulation outages and debugging effort, demonstrating depth in software engineering and simulation control systems.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
25Total
Bugs
4
Commits
25
Features
4
Lines of code
1,061
Activity Months4
Your Network
34 peopleSame Organization
@simula.no4
Work History
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 This change enhances simulation stability and accuracy and reduces the likelihood of instability due to outdated control values.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").
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 This change enhances simulation stability and accuracy and reduces the likelihood of instability due to outdated control values.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
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.
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.
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.
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
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.
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.
Activity
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Quality Metrics
Correctness88.4%
Maintainability88.0%
Architecture86.0%
Performance79.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
Bug FixingBuild SystemsC++C++ DevelopmentCode ExplanationCode RefactoringControl SystemsDebuggingDocumentationError HandlingLoggingNumerical MethodsNumerical SimulationPerformance OptimizationSimulation
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