onnx/onnx
Sep 2025 – Nov 2025
2 Months active
Languages Used
C++Python
Technical Skills
Big-Endian SystemsC++PythonTensor ManipulationTestingcross-platform compatibility
Stefan Liebler
PROFILE
Stefan Liebler
Worked on the onnx/onnx repository to address critical issues affecting big-endian architectures, focusing on s390x systems. Using C++ and Python, resolved test suite failures by correcting byte swapping in tensor creation and refactoring tensor-related tests to ensure accurate endianness representation. Further stabilized cross-platform compatibility by updating the ml_dtypes dependency to version 0.5.4 specifically for s390x, aligning with upstream fixes and improving CI reliability. Demonstrated expertise in big-endian systems, dependency management, and software testing, resulting in more robust multi-architecture support and reduced CI noise for enterprise deployments. No new features were added during this period.
Overall Statistics
Feature vs Bugs
0%Features
Repository Contributions
2Total
Bugs
2
Commits
2
Features
0
Lines of code
160
Activity Months2
Your Network
128 peopleSame Organization
@linux.ibm.com83
Aboorva DevarajanMember
Aditya BodkheMember
Aditya GuptaMember
Abhishek DubeyMember
Alexander GordeevMember
Andrew DonnellanMember
Aleksei NikiforovMember
Farhan AliMember
Amit MachhiwalMember
Work History
November 2025
1 Commits
Nov 1, 2025November 2025 monthly summary for onnx/onnx: Implemented an arch-specific dependency update to stabilize the s390x big-endian tests by upgrading ml_dtypes to 0.5.4. This targeted change addresses test suite failures and aligns with prior fixes in both ONNX and ml_dtypes releases, improving CI reliability and cross-architecture compatibility.
1 Commits
Nov 1, 2025November 2025 monthly summary for onnx/onnx: Implemented an arch-specific dependency update to stabilize the s390x big-endian tests by upgrading ml_dtypes to 0.5.4. This targeted change addresses test suite failures and aligns with prior fixes in both ONNX and ml_dtypes releases, improving CI reliability and cross-architecture compatibility.
November 2025
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for onnx/onnx: Delivered a critical fix to big-endian tensor handling, eliminating test failures on s390x by correcting byte swapping in tensor creation and refactoring make_tensor and related tests to ensure correct endianness representation. This work stabilizes cross-architecture behavior and enhances platform coverage, reducing CI noise and improving reliability for enterprise deployments on big-endian systems.
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for onnx/onnx: Delivered a critical fix to big-endian tensor handling, eliminating test failures on s390x by correcting byte swapping in tensor creation and refactoring make_tensor and related tests to ensure correct endianness representation. This work stabilizes cross-architecture behavior and enhances platform coverage, reducing CI noise and improving reliability for enterprise deployments on big-endian systems.
Activity
Loading activity data...
Quality Metrics
Correctness100.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++Python
Technical Skills
Big-Endian SystemsC++PythonTensor ManipulationTestingcross-platform compatibilitydependency managementsoftware testing
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline