google/XNNPACK
Oct 2025 – Oct 2025
1 Month active
Languages Used
CC++
Technical Skills
C programmingC++ developmentalgorithm designalgorithm optimizationbuild systemsperformance optimization
Jonathan Clohessy
PROFILE
Jonathan Clohessy
Worked across ONNX Runtime, XNNPACK, and ROCm/onnxruntime repositories to deliver high-performance matrix multiplication and quantization improvements for machine learning inference. Focused on optimizing ARM NEON and SME microkernels using C and C++, introducing new GEMM and convolution paths, and refining memory management for reliability and speed. Enhanced test coverage and debugging instrumentation, stabilized CI by addressing edge cases in quantized and fastmath kernels, and improved cache efficiency for convolution workloads. Leveraged CMake for build integration and maintained code quality through targeted bug fixes, regression tests, and conditional compilation, enabling robust, production-ready performance across diverse embedded and server platforms.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
3Total
Bugs
1
Commits
3
Features
1
Lines of code
247
Activity Months1
Your Network
873 peopleSame Organization
@arm.com564
Work History
October 2025
3 Commits • 1 Features
Oct 1, 2025October 2025 monthly summary for google/XNNPACK: Delivered Convolution PF16/Float16 support with packing optimization and completed ARM SME2 build compatibility fixes for GEMM tests. Focused on performance readiness for FP16 paths, code structure improvements, and build stability across ARM platforms, enabling faster deployment and reliable CI.
3 Commits • 1 Features
Oct 1, 2025October 2025 monthly summary for google/XNNPACK: Delivered Convolution PF16/Float16 support with packing optimization and completed ARM SME2 build compatibility fixes for GEMM tests. Focused on performance readiness for FP16 paths, code structure improvements, and build stability across ARM platforms, enabling faster deployment and reliable CI.
October 2025
Activity
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Quality Metrics
Correctness80.0%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++
Technical Skills
C programmingC++ developmentalgorithm designalgorithm optimizationbuild systemsperformance optimizationperformance tuningtesting
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