IAS-Astrophysics/athenak
Jan 2025 – Sep 2025
3 Months active
Languages Used
CC++Python
Technical Skills
Astrophysical SimulationC++ ProgrammingCI/CDCode RefactoringMHDNumerical Methods
James Stone
PROFILE
James Stone
Over a three-month period, contributed to IAS-Astrophysics/athenak by developing advanced simulation infrastructure for astrophysical plasma and radiation physics. Delivered adaptive mesh refinement for radiation, enabling dynamic grid resolution based on user-defined criteria, and refactored the AMR framework for greater flexibility in multi-physics coupling. Enhanced the automated testing framework to expand scenario coverage and robustness, integrating new problem generators and improving error handling. Addressed compiler compatibility and CI stability, ensuring reliable builds and regression safety. Work was implemented primarily in C++ and Python, leveraging parallel computing technologies such as MPI and Kokkos to support high-performance, production-ready scientific simulations.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
7Total
Bugs
1
Commits
7
Features
4
Lines of code
16,111
Activity Months3
Your Network
13 peopleWork History
September 2025
1 Commits • 1 Features
Sep 1, 2025Monthly work summary for 2025-09 (IAS-Astrophysics/athenak). Focused on delivering adaptive mesh refinement (AMR) for radiation physics, refactoring the AMR framework, integrating radiation source term management, and expanding test coverage. Resulted in improved simulation fidelity, maintainability, and readiness for broader multi-physics experiments.
1 Commits • 1 Features
Sep 1, 2025Monthly work summary for 2025-09 (IAS-Astrophysics/athenak). Focused on delivering adaptive mesh refinement (AMR) for radiation physics, refactoring the AMR framework, integrating radiation source term management, and expanding test coverage. Resulted in improved simulation fidelity, maintainability, and readiness for broader multi-physics experiments.
September 2025
August 2025
4 Commits • 2 Features
Aug 1, 2025Month 2025-08: Major improvements to testing and physics validation for IAS-Astrophysics/athenak. Overhauled automated testing framework with expanded scenario coverage across C-shocks, linear waves in hydrodynamics, MHD, GRMHD, and Z4c; revamped input suite and error-calculation scripts to improve robustness. AthenaK shear-boxes now feature new hydrodynamic and MHD wave generators, refactors, boundary/parallel communication fixes, and updated build configuration to include new tests and improved orbital advection/source-term handling. Shwave problem generator compilation issues were resolved for newer nvHPC compilers, with fixes for a regression introduced by earlier changes. These efforts increase test coverage, reduce regression risk, and accelerate safe feature validation across the codebase.
August 2025
4 Commits • 2 Features
Aug 1, 2025Month 2025-08: Major improvements to testing and physics validation for IAS-Astrophysics/athenak. Overhauled automated testing framework with expanded scenario coverage across C-shocks, linear waves in hydrodynamics, MHD, GRMHD, and Z4c; revamped input suite and error-calculation scripts to improve robustness. AthenaK shear-boxes now feature new hydrodynamic and MHD wave generators, refactors, boundary/parallel communication fixes, and updated build configuration to include new tests and improved orbital advection/source-term handling. Shwave problem generator compilation issues were resolved for newer nvHPC compilers, with fixes for a regression introduced by earlier changes. These efforts increase test coverage, reduce regression risk, and accelerate safe feature validation across the codebase.
January 2025
2 Commits • 1 Features
Jan 1, 2025January 2025 performance summary for IAS-Astrophysics/athenak. Focused on prototyping and stabilizing high-fidelity physics generators and improving CI and code quality for maintainability. A Disk Magnetosphere Problem Generator was introduced and prepared for cross-repo reuse, with early groundwork laid for AthenaK integration. While not yet wired into AthenaK or production-ready, the work establishes a solid foundation for future adoption, reproducibility, and CI reliability.
2 Commits • 1 Features
Jan 1, 2025January 2025 performance summary for IAS-Astrophysics/athenak. Focused on prototyping and stabilizing high-fidelity physics generators and improving CI and code quality for maintainability. A Disk Magnetosphere Problem Generator was introduced and prepared for cross-repo reuse, with early groundwork laid for AthenaK integration. While not yet wired into AthenaK or production-ready, the work establishes a solid foundation for future adoption, reproducibility, and CI reliability.
January 2025
Activity
Loading activity data...
Quality Metrics
Correctness82.8%
Maintainability81.4%
Architecture81.4%
Performance68.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++Python
Technical Skills
Adaptive Mesh Refinement (AMR)Astrophysical Plasma SimulationsAstrophysical SimulationAstrophysical SimulationsC++C++ ProgrammingCI/CDCMakeCode RefactoringCompiler CompatibilityDebuggingGitHigh-Performance ComputingKokkosMHD
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline