GEOS-ESM/MAPL
Nov 2024 – Jan 2026
8 Months active
Languages Used
FortranMarkdownCMake
Technical Skills
Code RefactoringFortran DevelopmentFortranMPIDocumentationBug Fix
Tom Clune
PROFILE
Tom Clune
Thomas Clune contributed to the GEOS-ESM/MAPL repository by developing and refining features that enhance reliability, maintainability, and configurability in scientific and parallel computing workflows. He implemented robust error handling and logging improvements, streamlined data collection configuration, and introduced balanced domain decomposition for parallel execution. Using Fortran, CMake, and MPI, Thomas focused on code refactoring, documentation, and rigorous unit testing to reduce runtime errors and improve cross-platform compatibility. His work addressed both core algorithmic stability and developer experience, resulting in cleaner build processes, clearer diagnostics, and more flexible data pipelines, demonstrating a deep, methodical approach to scientific software engineering.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
16Total
Bugs
6
Commits
16
Features
6
Lines of code
546
Activity Months8
Your Network
100 people
Work History
January 2026
3 Commits • 2 Features
Jan 1, 2026January 2026 — MAPL: Delivered key reliability and configurability enhancements to improve observability, troubleshooting, and data pipelines. Key features delivered include (1) Logging and Observability Improvements to enhance log clarity, formatting, and alignment with compatibility updates and memory-management changes, supporting faster issue diagnosis and more reliable runtime behavior, and (2) Flexible Data Collection Configuration, increasing the maximum number of formatters from 1 to 2 to enable more versatile data collection configurations. These changes reduce debugging time, improve monitoring coverage, and prepare the codebase for more complex data workflows. Notable commits include updates to griddedio/FieldBundleRead.F90 and ExtDataCollection.F90, as well as a changelog update to reflect these improvements.
3 Commits • 2 Features
Jan 1, 2026January 2026 — MAPL: Delivered key reliability and configurability enhancements to improve observability, troubleshooting, and data pipelines. Key features delivered include (1) Logging and Observability Improvements to enhance log clarity, formatting, and alignment with compatibility updates and memory-management changes, supporting faster issue diagnosis and more reliable runtime behavior, and (2) Flexible Data Collection Configuration, increasing the maximum number of formatters from 1 to 2 to enable more versatile data collection configurations. These changes reduce debugging time, improve monitoring coverage, and prepare the codebase for more complex data workflows. Notable commits include updates to griddedio/FieldBundleRead.F90 and ExtDataCollection.F90, as well as a changelog update to reflect these improvements.
January 2026
December 2025
3 Commits • 1 Features
Dec 1, 2025December 2025 monthly work summary for GEOS-ESM/MAPL focusing on parallel domain decomposition improvements and build/test enhancements. Delivered a new partitioning function for balanced domain decomposition in parallel computing with support for symmetry and minimum extent constraints; added Fortran source (Partition.F90) and integrated a test case (Test_Partition.pf) into the CMake build, including unit tests to verify correctness. Bug fixes and stability improvements include addressing a mapl_GetPartition() issue (Fixes #4238) and updating CMakeLists.txt to reflect new sources and tests.
December 2025
3 Commits • 1 Features
Dec 1, 2025December 2025 monthly work summary for GEOS-ESM/MAPL focusing on parallel domain decomposition improvements and build/test enhancements. Delivered a new partitioning function for balanced domain decomposition in parallel computing with support for symmetry and minimum extent constraints; added Fortran source (Partition.F90) and integrated a test case (Test_Partition.pf) into the CMake build, including unit tests to verify correctness. Bug fixes and stability improvements include addressing a mapl_GetPartition() issue (Fixes #4238) and updating CMakeLists.txt to reflect new sources and tests.
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 – GEOS-ESM/MAPL: Key features delivered: Implemented MAPL_GridHasDE Return Code Handling Improvement by refactoring the MAPL_GridHasDE return code path to strengthen error handling and maintainability. This work was implemented with a targeted code update in griddedio/TileGridIO.F90 (commit 562773b2ba6e79e07f5c5823b5eb0338faf486bb). Major bugs fixed: None reported this month. Overall impact and accomplishments: Increased reliability of grid-domain execution by reducing ambiguous error states in MAPL_GridHasDE, simplifying debugging and future enhancements; established a cleaner error-handling pattern that benefits downstream components. Technologies/skills demonstrated: Fortran code refactoring, robust error handling, maintainability-focused changes, and grid I/O maintenance within MAPL.
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 – GEOS-ESM/MAPL: Key features delivered: Implemented MAPL_GridHasDE Return Code Handling Improvement by refactoring the MAPL_GridHasDE return code path to strengthen error handling and maintainability. This work was implemented with a targeted code update in griddedio/TileGridIO.F90 (commit 562773b2ba6e79e07f5c5823b5eb0338faf486bb). Major bugs fixed: None reported this month. Overall impact and accomplishments: Increased reliability of grid-domain execution by reducing ambiguous error states in MAPL_GridHasDE, simplifying debugging and future enhancements; established a cleaner error-handling pattern that benefits downstream components. Technologies/skills demonstrated: Fortran code refactoring, robust error handling, maintainability-focused changes, and grid I/O maintenance within MAPL.
November 2025
March 2025
3 Commits
Mar 1, 2025March 2025 MAPL improvements focused on robustness, portability, and maintainability across the GEOS-ESM/MAPL codebase. The month delivered critical stability fixes, streamlined error handling, and enhanced cross-compiler compatibility with targeted test coverage. These changes reduce runtime risk, improve reliability on diverse platforms, and strengthen long-term maintainability.
March 2025
3 Commits
Mar 1, 2025March 2025 MAPL improvements focused on robustness, portability, and maintainability across the GEOS-ESM/MAPL codebase. The month delivered critical stability fixes, streamlined error handling, and enhanced cross-compiler compatibility with targeted test coverage. These changes reduce runtime risk, improve reliability on diverse platforms, and strengthen long-term maintainability.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for GEOS-ESM/MAPL: - Focused on enhancing developer experience and maintainability through documentation updates for the MAPL Code Generator. The update clarifies that the MAPL code generator automatically generates MAPL calls for GEOS grid component import/export variables, with the goal of reducing manual effort, minimizing errors, and improving consistency and quality across components.
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for GEOS-ESM/MAPL: - Focused on enhancing developer experience and maintainability through documentation updates for the MAPL Code Generator. The update clarifies that the MAPL code generator automatically generates MAPL calls for GEOS grid component import/export variables, with the goal of reducing manual effort, minimizing errors, and improving consistency and quality across components.
February 2025
January 2025
1 Commits
Jan 1, 2025January 2025 (2025-01) - GEOS-ESM MAPL: Focused code cleanup and reliability improvements in the MAPL_MaxMinMod module. Key features delivered: cleaned MPI_Reduce usage in MAPL_MaxMinMod.F90, removing commented-out code and ensuring the active MPI_Reduce call is correctly formatted. Major bugs fixed: elimination of legacy MPI_Reduce code paths and standardized formatting to reduce MPI-related risk. Overall impact: increased stability and maintainability of parallel MAPL execution, enabling more reliable model runs in 2025. Technologies/skills demonstrated: Fortran 90, MPI, clean-code practices, version control discipline, and a business-value focus on reliability.
January 2025
1 Commits
Jan 1, 2025January 2025 (2025-01) - GEOS-ESM MAPL: Focused code cleanup and reliability improvements in the MAPL_MaxMinMod module. Key features delivered: cleaned MPI_Reduce usage in MAPL_MaxMinMod.F90, removing commented-out code and ensuring the active MPI_Reduce call is correctly formatted. Major bugs fixed: elimination of legacy MPI_Reduce code paths and standardized formatting to reduce MPI-related risk. Overall impact: increased stability and maintainability of parallel MAPL execution, enabling more reliable model runs in 2025. Technologies/skills demonstrated: Fortran 90, MPI, clean-code practices, version control discipline, and a business-value focus on reliability.
December 2024
1 Commits
Dec 1, 2024December 2024 monthly summary for GEOS-ESM/MAPL: - Implemented a robust fix in MAPL_LatLonGridFactory to ensure correct and consistent vars string construction. Refactor simplifies conditionals and guarantees 'lon,lat' are always included, with bounds names appended only when allocated. This improves correctness, maintainability, and reliability of grid setup across models.
1 Commits
Dec 1, 2024December 2024 monthly summary for GEOS-ESM/MAPL: - Implemented a robust fix in MAPL_LatLonGridFactory to ensure correct and consistent vars string construction. Refactor simplifies conditionals and guarantees 'lon,lat' are always included, with bounds names appended only when allocated. This improves correctness, maintainability, and reliability of grid setup across models.
December 2024
November 2024
3 Commits • 1 Features
Nov 1, 2024Monthly progress summary for 2024-11 on GEOS-ESM/MAPL focusing on reliability of data configuration and grid component loop stability. Deliveries centered on improving error reporting, code maintainability, and correct loop termination, delivering business value through more robust configurations and fewer runtime issues.
November 2024
3 Commits • 1 Features
Nov 1, 2024Monthly progress summary for 2024-11 on GEOS-ESM/MAPL focusing on reliability of data configuration and grid component loop stability. Deliveries centered on improving error reporting, code maintainability, and correct loop termination, delivering business value through more robust configurations and fewer runtime issues.
Activity
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Quality Metrics
Correctness94.4%
Maintainability92.6%
Architecture88.8%
Performance91.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
CMakeFortranMarkdown
Technical Skills
Bug FixCMakeCode RefactoringDocumentationError HandlingFortranFortran DevelopmentFortran ProgrammingFortran programmingMPITestingbuild configurationdata collectiondocumentationerror handling
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