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Larry Meadows

PROFILE

Larry Meadows

Over four months, contributed to ROCm/rocprofiler-sdk, ROCm/aomp, and ROCm/rocm-systems, focusing on low-level system programming and performance tooling. Addressed compatibility issues in rocprofiler-sdk by updating ELF header checks for newer LLVM toolchains using C and embedded systems expertise. Enhanced ROCm/aomp’s smoke testing framework for Fortran allocatables with Unified Shared Memory, expanding test coverage and improving CI reliability through Makefile and shell scripting. In rocm-systems, fixed a race condition in OMPT task scheduling and improved Perfetto trace formatting for mutex and target types, leveraging C++ and concurrent programming skills to strengthen profiling, debugging, and runtime stability for ROCm workloads.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

6Total
Bugs
2
Commits
6
Features
2
Lines of code
328
Activity Months4

Work History

December 2025

1 Commits • 1 Features

Dec 1, 2025

Concise monthly summary for 2025-12 focused on business value and technical achievements for ROCm/rocm-systems. The month delivered enhancements to Perfetto tracing for OMPT events, improving trace readability and profiling efficiency.

November 2025

1 Commits

Nov 1, 2025

November 2025 performance summary for ROCm/rocm-systems focused on improving runtime stability for OMPT task scheduling. Delivered a critical bug fix eliminating a race condition that could trigger a null pointer dereference in ompt_callback_task_schedule when handling ompt_task_early_fulfill tasks. The change adds null pointer checks and adjusts the callback logic to prevent dereferencing null pointers due to concurrent task scheduling, reducing crash risk in multi-threaded environments. Implemented via commit e6fc009b281d02d29b098fc0b95202f5fc324b04 (SWDEV-552584) and associated formatting/ompt.cpp updates. Co-authored by Copilot and Jonathan R. Madsen.

February 2025

3 Commits • 1 Features

Feb 1, 2025

February 2025 monthly summary for ROCm/aomp: Delivered a feature-enhanced smoke testing framework for Fortran allocatables with target and Unified Shared Memory (USM), expanding test coverage, and refining the test infrastructure (logging and Makefile configurations) to improve reliability and validation of OpenMP/HSA_XNACK-related behavior. This work strengthens validation of USM-target interactions and contributes to more robust feature readiness.

January 2025

1 Commits

Jan 1, 2025

Monthly summary for 2025-01 focusing on ROCm/rocprofiler-sdk work. The primary activity this month was a critical bug fix to improve compatibility with newer LLVM toolchains and disassembly headers. No new features were delivered in this cycle.

Activity

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Quality Metrics

Correctness91.8%
Maintainability86.6%
Architecture83.4%
Performance86.6%
AI Usage30.0%

Skills & Technologies

Programming Languages

CC++FortranMakefileShell

Technical Skills

Build SystemsC ProgrammingC++C++ developmentCompiler toolchainsEmbedded systemsFortran ProgrammingLow-level programmingOpenMPShell ScriptingTestingconcurrent programmingdebuggingperformance profilingsystem programming

Repositories Contributed To

3 repos

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

ROCm/aomp

Feb 2025 Feb 2025
1 Month active

Languages Used

CFortranMakefileShell

Technical Skills

Build SystemsC ProgrammingFortran ProgrammingOpenMPShell ScriptingTesting

ROCm/rocm-systems

Nov 2025 Dec 2025
2 Months active

Languages Used

C++

Technical Skills

C++concurrent programmingdebuggingC++ developmentperformance profilingsystem programming

ROCm/rocprofiler-sdk

Jan 2025 Jan 2025
1 Month active

Languages Used

C++

Technical Skills

Compiler toolchainsEmbedded systemsLow-level programming