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Nikola Stamatovic

PROFILE

Nikola Stamatovic

Over a two-month period, contributed to the tenstorrent/tt-metal repository by developing and optimizing data movement testing infrastructure. Built features such as a Directed Ideal Loopback Test and a comprehensive Data Movement Tests Performance Suite, enabling earlier detection of performance regressions and more accurate measurement of interleaved-to-sharded data transfers. Enhanced direct write tests to support mesh device architectures and implemented kernel-level optimizations to reduce blocking time in S2I and sharded-interleaved paths. Addressed reliability by fixing issues with missing profiling data. Leveraged C++, Python, and performance testing frameworks to improve test coverage, throughput, and the robustness of distributed data movement workflows.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

10Total
Bugs
2
Commits
10
Features
4
Lines of code
2,936
Activity Months2

Your Network

883 people

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Work History

September 2025

8 Commits • 3 Features

Sep 1, 2025

September 2025 performance summary for tenstorrent/tt-metal: Focused on expanding testing infrastructure, improving reliability, and boosting kernel performance. Key features delivered include Direct Write Tests Enhancements with mesh architecture support and repeated writes; a new Data Movement Tests Performance Suite; and kernel-level optimizations that reduce blocking time in S2I and sharded-interleaved paths. Major reliability fixes were added to the DM test suite to handle missing profiling data. Overall, improved test coverage, faster and more accurate performance measurements, and clearer visibility into end-to-end data movement and write paths. Demonstrated skills in test automation, distributed/test architecture, performance benchmarking, and kernel-level optimization.

August 2025

2 Commits • 1 Features

Aug 1, 2025

Summary for 2025-08: Tenstorrent/tt-metal delivered a Directed Ideal Loopback Test for Data Movement, strengthening the Data Movement test suite. This feature adds a directed loopback test to validate data transactions, reduce overhead, and boost throughput. Implemented via two commits (cd916048c25d08c2ba1628539d6bd4cdd2b483b3 and 4a72832c13b666176fdd74733ad674f61ab9b030) associated with #26059. Major bugs fixed: none reported this month. Overall impact: improved test coverage, earlier performance validation, and enhanced data-path reliability, contributing to more robust releases. Technologies/skills demonstrated: test automation, performance testing, loopback testing, Git/version control, collaboration across Data Movement test suites.

Activity

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Quality Metrics

Correctness96.0%
Maintainability82.0%
Architecture90.0%
Performance86.0%
AI Usage32.0%

Skills & Technologies

Programming Languages

C++PythonYAML

Technical Skills

C++C++ developmentPerformance testingPython scriptingTesting frameworksdata analysisdata movement operationsdata movement optimizationdata movement testingdistributed systemsembedded systemskernel developmentkernel programmingperformance optimizationperformance testing

Repositories Contributed To

1 repo

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

tenstorrent/tt-metal

Aug 2025 Sep 2025
2 Months active

Languages Used

C++YAMLPython

Technical Skills

C++ developmentdata movement optimizationdata movement testingperformance testingunit testingC++