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Anna Sztukowska

PROFILE

Anna Sztukowska

Over six months, contributed to the oneapi-src/oneDNN repository by developing and optimizing core CPU backend features, focusing on matrix multiplication, convolution, and pooling primitives. Leveraged C++ and low-level programming to expand data type support, enabling mixed-precision workloads and improving performance for matrix operations. Addressed edge-case bugs in binary addition and tensor layout handling, enhancing numerical correctness and test reliability. Improved documentation for benchmarking tools, clarifying data type configuration and reducing user confusion. Implemented targeted performance optimizations, such as non-trivial stride support in broadcasting, and stabilized regression testing, ensuring predictable behavior and robust benchmarking across diverse CPU architectures and workloads.

Overall Statistics

Feature vs Bugs

56%Features

Repository Contributions

9Total
Bugs
4
Commits
9
Features
5
Lines of code
539
Activity Months6

Work History

April 2026

2 Commits

Apr 1, 2026

April 2026 monthly summary for oneDNN (oneapi-src/oneDNN). This period focused on stabilizing test outputs and ensuring correct tensor layouts in core CPU matmul paths. There were no new user-facing features delivered this month; the emphasis was on bug fixes that improve reliability, test readability, and correctness in performance-critical components. The changes reduce noise in CI and improve confidence in benchmarking results.

March 2026

1 Commits • 1 Features

Mar 1, 2026

Month: 2026-03 – Delivered a targeted performance optimization in oneDNN by enabling non-trivial strides in the binary injector for per_mb_spatial broadcasting. This change improves memory operation efficiency during matrix multiplications, contributing to higher throughput on x64 CPU backends. Implemented in oneapi-src/oneDNN with commit daa6b552c4465dfa799cef1357ba58b61c2106bf, and lays groundwork for broader broadcasting pattern optimizations in the CPU path.

December 2025

1 Commits • 1 Features

Dec 1, 2025

December 2025 monthly summary for oneDNN: Key feature delivered: flexible data type support for reference pooling on CPU, enabling different data types for src and dst. Major bugs fixed: none reported this month. Overall impact: expands workload compatibility, reduces data-type conversions, and paves the way for performance improvements in mixed-precision scenarios. Technologies/skills demonstrated: cross-dtype data handling in the CPU pooling path, reference pooling, and commit-driven development (commit 22bdd09d01c844e24b39bb1e9dc956e40dbed080).

November 2025

1 Commits • 1 Features

Nov 1, 2025

In November 2025, oneDNN contributed a targeted documentation improvement to clarify the pool driver --dt option. The change ensures that --dt applies to both the source and destination data types and removes outdated references to weights, reducing user confusion and support overhead. The update aligns with benchdnn documentation and enhances overall usability for benchmarking and integration.

August 2025

2 Commits • 2 Features

Aug 1, 2025

August 2025 monthly summary for oneapi-src/oneDNN focusing on CPU backend data-type expansion for core primitives. Delivered two new data-type configurations for matmul and convolution/deconvolution, expanding supported destination types and enabling broader precision-throughput configurations. These changes improve applicability to mixed-precision workloads and potential performance for CPU workloads.

June 2025

2 Commits

Jun 1, 2025

June 2025 (2025-06) – Focused on stability, correctness, and test coverage in the oneDNN CPU path. No new feature releases this month; key progress centered on fixing edge-case numerical correctness and increasing opmask flexibility, with regression tests to prevent regressions. These changes improve reliability of CPU computations and simplify use of opmask in JIT codegen. Highlights include targeted bug fixes with clear business value: improved correctness for critical math paths and enhanced flexibility in mask handling, reducing potential runtime failures and ensuring predictable behavior across edge cases.

Activity

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Quality Metrics

Correctness92.2%
Maintainability86.6%
Architecture86.6%
Performance90.0%
AI Usage22.2%

Skills & Technologies

Programming Languages

C++Markdown

Technical Skills

Assembly programmingC++CPU OptimizationCPU architectureDeep Learning FrameworksLibrary developmentLow-Level ProgrammingLow-level programmingMatrix MultiplicationPerformance EngineeringRegression TestingTestingalgorithm optimizationdata structure managementdocumentation

Repositories Contributed To

1 repo

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

oneapi-src/oneDNN

Jun 2025 Apr 2026
6 Months active

Languages Used

C++Markdown

Technical Skills

Assembly programmingCPU OptimizationLibrary developmentLow-Level ProgrammingLow-level programmingRegression Testing