ecmwf/eccodes
Nov 2024 – Apr 2025
3 Months active
Languages Used
CFortranC++Shell
Technical Skills
API DevelopmentC ProgrammingCode cleanupFortran ProgrammingFortran programmingMemory Management
plesskem
PROFILE
Plesskem
Marieke Plesske enhanced the ecmwf/eccodes repository by developing and refining Fortran APIs for efficient GRIB message handling, focusing on zero-copy memory management to improve performance and scalability in high-performance computing workflows. She implemented new interfaces that allow Fortran users to retrieve and construct GRIB messages directly from memory, reducing overhead and enabling seamless C/C++ interoperability. Her work included updating header files, module procedures, and C++ sources to ensure robust cross-language support. Additionally, Marieke contributed comprehensive Fortran example programs and automated tests, strengthening error handling and reliability for end users. Her contributions demonstrated depth in C, C++, and Fortran programming.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
6Total
Bugs
1
Commits
6
Features
4
Lines of code
410
Activity Months3
Your Network
89 peopleShared Repositories
20
Work History
April 2025
3 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for ecmwf/eccodes focusing on delivering cross-language GRIB access enhancements and robust Fortran examples.
3 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for ecmwf/eccodes focusing on delivering cross-language GRIB access enhancements and robust Fortran examples.
April 2025
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for ecmwf/eccodes. Key accomplishments: Delivered a zero-copy Fortran API function new_from_message_no_copy_int4 to construct GRIB messages from 4-byte integer arrays, significantly reducing memory usage and increasing processing throughput for Fortran workloads. Implemented across header files, Fortran module procedures, and C++ sources to ensure cross-language compatibility. Commit 04e139e9f5dbaae5d9e3469deef22550fb512a0c documents the change. Impact: enables efficient handling of large GRIB datasets in Fortran-based workflows, improving HPC scalability. No major bugs fixed this month; feature-focused development and API enhancement. Technologies/skills demonstrated: Fortran API design, zero-copy memory management, cross-language integration (Fortran/C++), header/module interface updates.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for ecmwf/eccodes. Key accomplishments: Delivered a zero-copy Fortran API function new_from_message_no_copy_int4 to construct GRIB messages from 4-byte integer arrays, significantly reducing memory usage and increasing processing throughput for Fortran workloads. Implemented across header files, Fortran module procedures, and C++ sources to ensure cross-language compatibility. Commit 04e139e9f5dbaae5d9e3469deef22550fb512a0c documents the change. Impact: enables efficient handling of large GRIB datasets in Fortran-based workflows, improving HPC scalability. No major bugs fixed this month; feature-focused development and API enhancement. Technologies/skills demonstrated: Fortran API design, zero-copy memory management, cross-language integration (Fortran/C++), header/module interface updates.
November 2024
2 Commits • 1 Features
Nov 1, 2024Monthly summary for 2024-11 (ecmwf/eccodes). Focused on delivering enhancements to the GRIB Fortran API, improving interoperability with C and performance, along with code hygiene improvements in the same repository.
2 Commits • 1 Features
Nov 1, 2024Monthly summary for 2024-11 (ecmwf/eccodes). Focused on delivering enhancements to the GRIB Fortran API, improving interoperability with C and performance, along with code hygiene improvements in the same repository.
November 2024
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Quality Metrics
Correctness88.4%
Maintainability86.6%
Architecture83.4%
Performance81.8%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++FortranShell
Technical Skills
API DevelopmentC ProgrammingC++ DevelopmentC/C++ InteroperabilityCode cleanupError HandlingExample Code EnhancementFortran API DevelopmentFortran InterfaceFortran ProgrammingFortran programmingGRIB APILow-level Data HandlingMemory ManagementShell Scripting
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