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Pieter Ghysels

PROFILE

Pieter Ghysels

Worked on the ROCm/rocm-libraries repository, delivering two core features to enhance kernel matching and library resolution for high-performance GPU computing. Developed range-based kernel matching for hipblaslt, introducing a Range distance metric and updating property matching logic to support configuration by dimension ranges, all implemented in C++ with supporting Python tests. Added a PredictionMatching predicate to resolve conflicts in library selection, improving configurability and correctness across GPU families. Addressed reliability by fixing a division-by-zero bug in Origami GEMM for K=0, expanding test coverage and code guards to ensure robust handling of zero-dimension matrix multiplications and edge cases.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

3Total
Bugs
1
Commits
3
Features
2
Lines of code
1,114
Activity Months2

Your Network

1790 people

Work History

October 2025

1 Commits

Oct 1, 2025

October 2025 performance review for ROCm/rocm-libraries focused on reliability hardening of matrix-multiply paths. Implemented a critical Origami GEMM division-by-zero fix for K=0, and expanded test coverage to guard zero-dimension scenarios. These changes reduce crash risk and ensure correct results in edge cases, enhancing overall stability and user trust in core linear algebra routines.

September 2025

2 Commits • 2 Features

Sep 1, 2025

Monthly summary for 2025-09 focusing on ROCm/rocm-libraries. Delivered two key features enhancing kernel matching and library resolution, with accompanying tests and design improvements to ensure correctness and configurability across GPU families. The work emphasizes business value through improved performance, reliability, and maintainability of the ROCm libraries stack.

Activity

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Quality Metrics

Correctness96.6%
Maintainability93.4%
Architecture96.6%
Performance93.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++CMakePythonYAML

Technical Skills

Build SystemsC++C++ DevelopmentCode GenerationHigh-Performance ComputingLibrary DevelopmentLinear Algebra LibrariesNumerical ComputingPerformance OptimizationPredicate LogicPythonTestingTesting Frameworks

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

ROCm/rocm-libraries

Sep 2025 Oct 2025
2 Months active

Languages Used

C++CMakePythonYAML

Technical Skills

Build SystemsC++Code GenerationHigh-Performance ComputingLibrary DevelopmentLinear Algebra Libraries