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Djordje

PROFILE

Djordje

Over seven months, Divanovic engineered robust testing, performance, and CI/CD infrastructure for the tenstorrent/tt-metal repository, focusing on Llama model workflows and system stability. He enhanced observability and reliability by developing automated stress testing, refining logging, and optimizing performance profiling using Python, Bash, and C++. His work included stabilizing routing algorithms, expanding model-driven test selection, and integrating dynamic pipeline filtering to accelerate feedback cycles. By addressing memory management, test flakiness, and code maintainability, Divanovic delivered scalable solutions that improved deployment reliability and developer onboarding. The depth of his contributions reflects a disciplined approach to backend development and workflow automation.

Overall Statistics

Feature vs Bugs

55%Features

Repository Contributions

129Total
Bugs
24
Commits
129
Features
29
Lines of code
13,944
Activity Months7

Work History

September 2025

5 Commits • 1 Features

Sep 1, 2025

September 2025 – Tenstorrent/tt-metal focused on stabilizing the 1D/2D fabric routing and refreshing CI/CD and demo pipelines. Reverted complex routing changes to restore simple, stable routing and compatibility; refreshed CI workflow, test configuration, and demo outputs to reflect current functionality. These efforts improved reliability, reduced debugging time, and accelerated release readiness and customer demonstrations.

August 2025

39 Commits • 11 Features

Aug 1, 2025

Monthly performance summary for 2025-08 focused on the tenstorrent/tt-metal repo: - Key features delivered and major fixes across testing, performance, memory, and integration work. - Demonstrated improvements in test reliability, memory/prefetcher efficiency, and build/test workflow. - Early AG+MM/model integration groundwork and NOC1 enablement prepared for next-phase optimizations. - Maintained code quality through refactors, permissions restoration, and API clarity improvements. Overall, the month delivered tangible business value through more stable topK functionality, more accurate and actionable performance metrics, and a more scalable test and integration backbone.

July 2025

9 Commits • 6 Features

Jul 1, 2025

July 2025 (2025-07) performance focus for tenstorrent/tt-metal. This period prioritized stability of core tensor operations and expanded performance validation across APC and Llama configurations. Key features delivered include APC testing enhancements for TG-Llama70b, and APC mode expansion enabling 80-layer Llama testing, along with text_demo improvements for throughput correctness and flexible performance expectations. Major bugs fixed encompassed restoring prior core logic by reverting the ttnn v2 change and correcting token-position checks in text demos, with updated performance benchmarks to reflect accurate kernel durations. The CI pipeline was streamlined by removing non-essential tests, enabling faster feedback loops. Overall, the work increased system stability, broadened scalability validation, and enhanced performance visibility for data-driven decisions. Technologies and skills demonstrated include stability patches, APC/Llama model testing, text_demo instrumentation and testing refinements, unit test improvements (RotaryEmbeddingLlamaFusedQK), and CI/test optimization for performance benchmarking.

June 2025

17 Commits • 2 Features

Jun 1, 2025

June 2025: Key delivery across stress testing, nightly workflows, and model‑driven CI/CD for tt-metal. Delivered targeted test runs, reduced flaky tests, and streamlined configuration, enabling faster feedback and more reliable releases. Highlights include expanded stress-test coverage, dynamic model/trigger-based pipelines, and maintainable pipeline topology.

May 2025

42 Commits • 5 Features

May 1, 2025

May 2025 monthly summary for tenstorrent/tt-metal: Delivered observability and test infrastructure improvements, stabilized SDPA-related changes, and refined CI/test reliability while laying groundwork for 6U/galaxy perf targets. Focused on delivering business value through clearer runtime visibility, robust token/config handling, and disciplined test/config hygiene, enabling more reliable deployments and faster feedback cycles.

April 2025

12 Commits • 2 Features

Apr 1, 2025

Monthly work summary for 2025-04 covering tt-metal activities, focusing on Llama3 demo decoding and stress testing, CI/CD integration for stress tests, and maintaining baseline stability by reverting problematic changes.

March 2025

5 Commits • 2 Features

Mar 1, 2025

2025-03 Monthly Summary — tenstorrent/tt-metal Key features delivered: - Performance profiling, tracing, and enhanced logging for Llama decoding demos to improve observability and tuning during execution. - ND hang test automation script (bash) to automate testing with optional device reset on timeout, increasing reliability of test runs. Major bugs fixed: - Syntax fix for machine_number conditional to ensure compatibility with reset_id.json format and prevent test/reporting failures. Overall impact and accomplishments: - Improved performance visibility and observability for critical Llama decoding workflows, enabling faster tuning and issue diagnosis. - Increased test reliability with automated ND hang testing, reducing flaky runs and manual intervention. - Restored compatibility across related test configurations, reducing onboarding friction for new tests and integrations. Technologies/skills demonstrated: - Performance profiling, tracing, and logging instrumentation; Bash scripting for test automation; JSON/format compatibility fixes; code maintenance and commit traceability.

Activity

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Quality Metrics

Correctness85.8%
Maintainability83.2%
Architecture82.2%
Performance84.6%
AI Usage29.2%

Skills & Technologies

Programming Languages

BashC++JavaScriptNonePythonShellTypeScriptUnknownYAMLbash

Technical Skills

Bash scriptingC++C++ DevelopmentC++ developmentC++ programmingCI/CDContinuous IntegrationData AnalysisData Movement OptimizationData ProcessingDeep LearningDevOpsEmbedded SystemsGPU programmingGitHub Actions

Repositories Contributed To

1 repo

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

tenstorrent/tt-metal

Mar 2025 Sep 2025
7 Months active

Languages Used

PythonShellbashBashC++YAMLNoneUnknown

Technical Skills

Data AnalysisMachine LearningPythonPython scriptingShell scriptingautomation

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