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Mateusz P. Nowak

PROFILE

Mateusz P. Nowak

Mateusz P. Nowak engineered performance benchmarking and runtime enhancements across intel/compute-benchmarks, intel/llvm, and oneapi-src/unified-runtime. He developed SYCL Graph API benchmarks and integrated flamegraph visualization to improve profiling and data-driven analysis, using C++ and Python. In unified-runtime, Mateusz implemented Level Zero v2 bindless image support, counter-based event handling, and zero-copy buffer operations for integrated GPUs, focusing on low-level programming and memory management. His work addressed build reliability, concurrency, and test coverage, including fixes for race conditions and subregion copy bugs. These contributions provided robust, maintainable solutions that improved performance analysis, runtime stability, and hardware integration for heterogeneous compute workloads.

Overall Statistics

Feature vs Bugs

64%Features

Repository Contributions

12Total
Bugs
4
Commits
12
Features
7
Lines of code
6,740
Activity Months9

Work History

February 2026

1 Commits

Feb 1, 2026

February 2026: Stabilized Level Zero v2 subregion handling in oneapi-src/unified-runtime by fixing the bindless array image subregion copy bug and enabling validation-focused tests, delivering immediate reliability gains for downstream customers relying on subregion operations and strengthening overall runtime test coverage.

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 (2026-01): Key feature delivered in oneapi-src/unified-runtime: zero-copy buffer operations enabling direct access to host memory for integrated GPUs, reducing data copies and improving CPU-GPU shared memory performance. No major bugs fixed this month. Overall this work enhances efficiency for workloads leveraging unified memory and demonstrates solid end-to-end feature delivery with clear business value.

December 2025

1 Commits • 1 Features

Dec 1, 2025

December 2025: Delivered Level-Zero v2 Adapter: Counter-based Event Handling in oneapi-src/unified-runtime. The feature enables counter-based events for more efficient processing and closer integration with hardware capabilities. Implemented via commit 22bb351daf67face696218221369a718da60ffe3 (Signed-off-by: Mateusz P. Nowak). No additional features or bugs were recorded for this repo this month. Impact: improved event throughput and hardware interoperability for Level-Zero workloads; aligns with performance and scalability goals. Technologies/skills demonstrated: low-level API integration, event-driven design, code governance with signed commits.

October 2025

2 Commits • 1 Features

Oct 1, 2025

2025-10 Monthly Summary: Focused on delivering key performance-analysis capabilities and stabilizing runtime behavior across two critical repos. Achievements reinforced business value by enabling faster performance diagnosis and increasing runtime reliability for asynchronous USM operations.

September 2025

2 Commits • 1 Features

Sep 1, 2025

September 2025: Strengthened performance visibility and test reliability in intel/llvm by delivering flamegraph-based benchmarking visualization and restoring critical SYCL test coverage. These changes accelerate performance diagnosis, ensure CI stability, and support data-driven optimizations across benchmarks and tests.

June 2025

1 Commits

Jun 1, 2025

2025-06 monthly summary: Build reliability enhancement for Level Zero integration in intel/compute-benchmarks. Implemented a precise Level Zero CMake include path fix to ensure headers are located consistently, simplified Level Zero find_package usage, and explicitly defined include directories. Result: more stable builds across CI and local environments, reduced header resolution issues, and a cleaner, maintainable CMake configuration.

May 2025

2 Commits • 1 Features

May 1, 2025

May 2025 summary for intel/compute-benchmarks: Delivered significant profiling enhancements and a critical bug fix to elevate benchmarking reliability and decision support. Implemented event handling for the SubmitGraph Level Zero (L0) benchmark to enable precise kernel timing measurements, and refactored the benchmark to support both counter-based and standard events. Added necessary Level Zero event headers and structure definitions to support robust event management. Follow-up updates standardized event structure types and naming conventions to improve consistency and maintainability. Fixed a bug in the CB-events description type, strengthening correctness and traceability. The work provides a stronger foundation for accurate performance analysis and future optimizations across Level Zero benchmarks.

April 2025

1 Commits • 1 Features

Apr 1, 2025

April 2025 monthly summary for oneapi-src/unified-runtime focused on delivering Level Zero v2 Bindless Images Integration within the adapter. The work ported bindless image functionality from v1 to the Level Zero v2 adapter, reorganized image-related helper files, and updated the build system to support the new integration.

January 2025

1 Commits • 1 Features

Jan 1, 2025

January 2025 monthly summary for intel/compute-benchmarks focusing on graph benchmarking capabilities.

Activity

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Quality Metrics

Correctness87.6%
Maintainability84.2%
Architecture85.8%
Performance80.8%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++CMakeCSSHTMLJavaScriptPythonShell

Technical Skills

Adapter ImplementationBenchmarkingBuild System ConfigurationC++C++ developmentCI/CDCMakeCode RefactoringConcurrencyData VisualizationGPU programmingGraphics APIIntel Level Zero APILow-Level ProgrammingLow-level programming

Repositories Contributed To

3 repos

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

oneapi-src/unified-runtime

Apr 2025 Feb 2026
5 Months active

Languages Used

C++CMake

Technical Skills

Adapter ImplementationBuild System ConfigurationCode RefactoringGraphics APILow-Level ProgrammingConcurrency

intel/compute-benchmarks

Jan 2025 Jun 2025
3 Months active

Languages Used

C++CMake

Technical Skills

C++CMakePerformance BenchmarkingSYCLIntel Level Zero APILow-Level Programming

intel/llvm

Sep 2025 Oct 2025
2 Months active

Languages Used

C++CSSHTMLJavaScriptPythonShell

Technical Skills

BenchmarkingCI/CDData VisualizationPerformance ProfilingPython DevelopmentSYCL