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Kian Cossettini

PROFILE

Kian Cossettini

Over the past year, contributed to ROCm/rocm-systems and ROCm/TheRock by building and enhancing profiling, testing, and build automation tools for AMD GPU software. Developed features such as OpenMP and MPI profiling, Docker-based build systems, and Python integration, using C++, Python, and CMake to modernize tracing, improve test reliability, and streamline CI workflows. Addressed bugs in instrumentation, packaging, and profiling accuracy, while expanding support for Fortran, HIP, and multi-architecture builds. The work emphasized robust system programming, performance analysis, and documentation, resulting in more reliable profiling tools, faster developer feedback, and improved deployment stability across diverse HPC and GPU environments.

Overall Statistics

Feature vs Bugs

64%Features

Repository Contributions

42Total
Bugs
10
Commits
42
Features
18
Lines of code
17,293
Activity Months12

Your Network

2190 people

Work History

April 2026

2 Commits • 1 Features

Apr 1, 2026

April 2026 monthly summary for ROCm/TheRock: Delivered critical Python support for ROC Profiler and hardened artifact packaging to ensure reliable single-Python-version distributions. The work enhances profiling capabilities for Python apps, improves CI stability, and demonstrates strong packaging and build/test automation skills.

March 2026

10 Commits • 3 Features

Mar 1, 2026

March 2026 performance snapshot focusing on ROC profiler enhancements, test reliability, and packaging stability across ROCm/rocm-systems and ROCm/TheRock. The work delivered stronger test coverage, actionable debugging improvements, and more robust deployment artifacts, driving measurable business value in stability, quality, and developer productivity.

February 2026

1 Commits

Feb 1, 2026

February 2026 monthly summary for ROCm/rocm-systems focused on reliability improvements in profiling tooling. Delivered a targeted bug fix in the get_offload_extractor to ensure accurate and reliable results in ROCm profiling workflows. Also enhanced the launch-compiler script to better handle ccache and resource_info.py, aligning with TheRock workflows and improving script robustness. No new user-facing features this month; the impact is measurable in data accuracy, tool stability, and streamlined developer workflows.

January 2026

5 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for ROCm/rocm-systems focusing on delivering business value through profiler system enhancements, reliability improvements, and CI-ready testing maturity. Highlights include architecture-aware build improvements, streamlined documentation, and robust MPI data handling that together increase developer productivity, deployment reliability, and overall ROCm tooling quality.

December 2025

3 Commits • 2 Features

Dec 1, 2025

December 2025 monthly summary for ROCm/rocm-systems. Key work included delivering runtime instrumentation for HOST OMPVV CTests to improve performance tracking and debugging, introducing an environment option to skip push/pop checks, and addressing a test failure related to regex negation. Also added ROCTX domain support to the ROCm profiler, fixing a segmentation fault when ROCPROFSYS_ROCM_DOMAINS=roctx and ensuring timemory push/pop use the correct category. Additionally, logic to skip transferBench validation when the binary is not built enhances test stability. These efforts improve testing reliability, profiling fidelity, and developer productivity, with measurable business value in faster issue diagnosis and more robust performance analysis.

November 2025

5 Commits • 2 Features

Nov 1, 2025

2025-11 monthly highlights for ROCm/rocm-systems focused on strengthening ROCprofiler test framework, expanding MPI/Fortran coverage, and improving profiling accuracy and CI efficiency. Major improvements include test reorganization, new Fortran MPI CTests, targeted OpenMP test optimizations, OMPT thread_begin support with consistent timestamps, and repo hygiene updates (gitignore). These changes deliver faster feedback, broader language and parallelism coverage, and a more reliable baseline for performance analysis.

October 2025

5 Commits • 2 Features

Oct 1, 2025

October 2025 monthly summary for ROCm/rocm-systems focused on stabilizing and strengthening profiling instrumentation and testing workflows to deliver measurable business value. Key work centered on tracing reliability, Fortran instrumentation accuracy, and a more robust OpenMP profiling toolchain, enabling faster performance debugging and more trustworthy analytics for ROCm users.

September 2025

3 Commits • 2 Features

Sep 1, 2025

September 2025 monthly summary for ROCm/rocm-systems: Delivered OpenMP testing enhancements with OMPVV integration and introduced instantaneous lock init/destroy events in ROCProfiler SDK. Strengthened CI/test suite and test reliability; improved validation coverage and runtime efficiency.

August 2025

2 Commits • 1 Features

Aug 1, 2025

2025-08 Monthly Summary: Stabilized builds and modernized tracing in ROCm/rocm-systems. Implemented container-driven build configuration (containers.yml) to support multiple OS targets and ROCm versions, and migrated OpenMP Tools tracing to rocprofiler-SDK, removing the legacy OMPT path. These changes reduce build failures, improve maintainability, and enable scalable tracing across environments.

July 2025

2 Commits • 1 Features

Jul 1, 2025

July 2025 ROCm/rocprofiler-systems work focused on strengthening Docker-based ROCm tooling and stabilizing tests, improving build reliability and CI feedback loops. Key changes reduce production risk by ensuring the Docker build process correctly interprets supported OS/ROCm combinations and version components, and by stabilizing fork-runtime instrumentation tests in CI. Impact highlights: tighter release-quality control through a compatibility matrix, more robust version parsing across Dockerfiles, and stabilized CTest runs with explicit non-inline optimization to prevent flakiness. Documentation updates accompany these changes to improve future maintainability and usage clarity.

June 2025

3 Commits • 2 Features

Jun 1, 2025

June 2025 monthly summary for ROCm/rocprofiler-systems. Focused on expanding profiling visibility for AMD GPUs and improving developer testing workflows. Key deliverables include new metrics reporting for AMD VCN and JPEG in rocprof-sys-avail, with AMD SMI integration and hardware-aware gating to report metrics only on supported devices. Documentation Improvements: Docker-based testing environment for ROCm Systems Profiler updated with detailed build/run steps and an image reference that follows the current user context ($(whoami)). Fixed and clarified the Docker testing workflow to reduce setup friction. These changes enhance data fidelity for profiling on supported GPUs, reduce maintenance overhead, and accelerate validation in local and CI pipelines. Demonstrated technologies include ROCm profiling APIs, AMD SMI integration, and Docker-based testing practices. Business value includes actionable performance data for AMD GPUs, faster verification of profiling changes, and easier onboarding for contributors.

May 2025

1 Commits • 1 Features

May 1, 2025

In May 2025, ROCm/rocprofiler-systems delivered automated code quality enforcement via pre-commit hooks, establishing a robust first-line quality gate before commits. This initiative unified formatting and validation across the codebase, reducing inconsistencies and review overhead while accelerating contributor onboarding. The changes centered on clang-format, cmake-format, copyright validation, and YAML checks, with a key commit adding the pre-commit hooks.

Activity

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Quality Metrics

Correctness88.6%
Maintainability84.8%
Architecture84.0%
Performance81.4%
AI Usage24.2%

Skills & Technologies

Programming Languages

BashCC++CMakeDockerfileFortranJSONJuliaMarkdownNone

Technical Skills

API integrationBinary InstrumentationBuild AutomationBuild ConfigurationBuild SystemsC++C++ DevelopmentC++ developmentCI/CDCMakeCMake scriptingCUDACallback HandlingCode FormattingCompiler Tooling

Repositories Contributed To

3 repos

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

ROCm/rocm-systems

Aug 2025 Mar 2026
8 Months active

Languages Used

C++CMakeShellFortranCJSONMarkdownRST

Technical Skills

Build AutomationBuild SystemsC++Performance AnalysisShell ScriptingSystem Programming

ROCm/rocprofiler-systems

May 2025 Jul 2025
3 Months active

Languages Used

ShellYAMLC++CMakeMarkdown

Technical Skills

CI/CDCode FormattingDevOpsC++ DevelopmentCMakeDocker

ROCm/TheRock

Mar 2026 Apr 2026
2 Months active

Languages Used

CMakeJSONPythonTOML

Technical Skills

CI/CDCMakeGPU ProgrammingLinuxPython scriptingTesting