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Poag, Charis

PROFILE

Poag, Charis

Charis Poag developed and maintained core GPU management and monitoring features in the ROCm/amdsmi and ROCm/rocm-systems repositories, focusing on partitioning, driver interaction, and performance telemetry. Leveraging C++, Python, and shell scripting, Charis implemented APIs for dynamic device discovery, partition metrics, and robust error handling, while aligning CLI tools with evolving hardware and kernel requirements. Their work included decoupling driver reloads, enhancing test suites for partitioned and virtualized environments, and improving logging and documentation for maintainability. By addressing cross-repo compatibility and performance, Charis delivered scalable, enterprise-ready solutions that improved observability, reliability, and operational efficiency for ROCm deployments.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

73Total
Bugs
19
Commits
73
Features
19
Lines of code
41,430
Activity Months13

Work History

October 2025

1 Commits • 1 Features

Oct 1, 2025

Month: 2025-10. This month focused on delivering GPU partition metrics capabilities in ROCm/amdsmi, with improved observability and API access for partition performance data. Major work included dynamic metric file selection based on GPU capabilities and version, and plumbing for a new partition metric API. Logging and tests were updated to reflect the new metrics. No major bugs fixed this period; all work aimed at enabling reliable, scalable partition metrics across devices, improving scheduling, diagnostics, and performance tuning.

September 2025

2 Commits • 1 Features

Sep 1, 2025

September 2025 ROCm/amdsmi monthly summary: Focused on delivering user-facing enhancements, improved monitoring reliability, and robust error reporting for ROCm SMI, underpinned by targeted 7.x changes. Key work included enabling Linux Guest power cap exposure, adding a bad-page threshold check for RAS, renaming --vbios to --ifwi, and improving error reporting for set/reset commands; plus a fix to the amd-smi monitor CSV output to correctly present per-process data. The release notes were updated to reflect ROCm 7.0/7.0.2/7.1.0 changes. Overall impact: increased observability, reliability, and production readiness for ROCm SMI with clearer diagnostics and data integrity across monitoring formats.

August 2025

9 Commits • 2 Features

Aug 1, 2025

In August 2025, ROCm/amdsmi delivered feature-rich driver management and enhanced observability, with targeted fixes to maintain backward compatibility and improve reliability across containers and virtualized environments. Notable work includes a new driver reload API decoupled from memory partition operations, CQE-aware adjustments for container workloads, and a comprehensive set of SMI tool improvements with richer violation metrics, multi-GPU support, and UI enhancements. Several stability and compatibility fixes were implemented for ROCm 7.x, along with test and documentation improvements to boost maintainability and user guidance.

July 2025

2 Commits • 1 Features

Jul 1, 2025

2025-07 Monthly summary for ROCm/amdsmi focusing on AMD SMI usability and reliability enhancements. Delivered improvements to CLI usability and error handling, reduced unnecessary API calls, and strengthened state consistency for power caps and settings.

June 2025

2 Commits

Jun 1, 2025

June 2025 monthly summary focused on stabilizing the ROCm test suite for partitioned configurations in response to AMD SMI API updates, enhancing robustness, and ensuring long-term compatibility. The work delivered cross-configuration stability checks, aligned tests with API changes, and improved test utilities, contributing to higher CI reliability, faster feedback, and stronger confidence in ROCm-SMI integration across CPX, DPX, and QPX configurations.

May 2025

7 Commits • 3 Features

May 1, 2025

May 2025 monthly summary focusing on delivering measurable business value through startup-time improvements, API clarity, and unified telemetry. The work spanned ROCm/amdsmi and ROCm/rocm-systems, delivering performance, robustness, and maintainability improvements across APIs, metrics, and test coverage.

April 2025

11 Commits • 3 Features

Apr 1, 2025

April 2025 performance summary: Delivered significant reliability and modularity improvements across ROCm SMI components. In ROCm/amdsmi, implemented robust device discovery with consistent unique device identifiers across KFD and KGD, aligned HIP_UUID reporting, improved handling of inaccessible SYSFS nodes, enhanced logging, and stabilized memory partition changes. In ROCm/rocm-systems, expanded partitioned device enumeration and identification using KFD discovery, added rsmi_dev_device_identifiers_get, and introduced dynamic runtime loading of libdrm and libdrm_amdgpu to decouple build-time dependencies. Addressed key reliability gaps by implementing a fallback to KFD for Unique Device ID when KGD read fails. Documentation updates accompany partition enumeration and graphics version reporting, contributing to maintainability and user-facing clarity. Overall, delivered 11 commits across 2 repos, improving device reliability, observability, and modularity, with a tangible impact on enterprise workflows.

March 2025

6 Commits • 1 Features

Mar 1, 2025

March 2025 performance summary for ROCm development focusing on test stability, expanded SMI partition coverage, and UX improvements. Highlights include stabilizing the test suite for static CPX configurations across Guest, Guest/BM, and Bare Metal, expanding AMD SMI partition testing with guest support and new APIs, and enforcing permissions with standardized partition IDs to improve non-root usability and consistency across systems. This period delivered stronger validation capabilities, clearer API surfaces, and improved developer experience.

February 2025

6 Commits

Feb 1, 2025

February 2025 monthly summary focusing on key features delivered and bugs fixed across ROCm/amdsmi and ROCm/rocm-systems. Key accomplishments include fixing an AttributeError in AMD SMI by correcting a typo in the log/CLI path, updating references after the NPS flags refactor to maintain correct data access, and hardening the test suite for static CPX configurations in Guest and Bare Metal environments. These changes improve tool reliability, cross-language compatibility (Python and Rust), and test stability, reducing deployment risk and accelerating validation cycles. Technologies demonstrated include Python/Rust integration, CLI/logging improvements, and comprehensive test engineering.

January 2025

6 Commits • 2 Features

Jan 1, 2025

January 2025 monthly work summary focused on delivering fine-grained GPU resource control, API surface expansion, and CLI stability across ROCm/amdsmi and ROCm/rocm-systems. The work prioritized business value through improved resource isolation, device visibility, and platform compatibility, enabling more reliable deployments and better metrics for GPU utilization.

December 2024

14 Commits • 3 Features

Dec 1, 2024

December 2024 performance highlights: Implemented AMD SMI Monitoring and Data Reporting Improvements in ROCm/amdsmi, delivering corrected VCLK/DCLK outputs, MHz units, improved data formatting, and robust MI2x/Navi handling and graphics version detection; fixed YAML dictionary printing. Enhanced CPX partition reporting robustness under DRM constraints with documented workarounds. Removed GFX_BUSY_ACC metric to streamline usage telemetry. In ROCm/rocm-systems, improved MI2x target_graphics_version detection accuracy and introduced GPU metrics version 1.7 support in rocm-smi-lib and rocm-smi, exposing new data points via --showmetrics (XGMI link status, clocks below host limit, VRAM max bandwidth). Overall impact: more accurate telemetry, improved reliability in constrained environments, and richer performance insights for developers and operators.

November 2024

6 Commits • 2 Features

Nov 1, 2024

November 2024: Implemented memory partition capabilities API with UI feedback (ROCm/rocm-systems); improved reliability of memory partition mode changes across configurations; enhanced AMD SMI memory partition management with CLI improvements, warning banners, and progress indicators. Updated tests to cover new flows and driver-reload timing. These changes deliver robust, enterprise-ready memory partition tooling with better visibility, fewer failed changes, and cross-repo consistency.

October 2024

1 Commits

Oct 1, 2024

Month: 2024-10 – ROCm/amdsmi: AMD SMI Reset Command Bug Fix. Implemented a fix for an AttributeError in the compute_partition flow during CLI reset by correcting spacing in reset commands. Updated CHANGELOG.md to reflect the fix and ensure traceability. Verified proper command execution when resetting GPU profiles and related settings, preventing misconfigurations in production workflows.

Activity

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Quality Metrics

Correctness86.0%
Maintainability83.6%
Architecture79.8%
Performance71.8%
AI Usage20.2%

Skills & Technologies

Programming Languages

CC++CMakeMarkdownPythonRustShell

Technical Skills

ABI StabilityAPI DesignAPI DevelopmentAPI IntegrationAPI developmentBug FixBug FixingBuild System ConfigurationBuild Systems (CMake)C++C++ DevelopmentC/C++CI/CDCLI DevelopmentCLI Tools

Repositories Contributed To

2 repos

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

ROCm/amdsmi

Oct 2024 Oct 2025
12 Months active

Languages Used

PythonC++ShellMarkdownRustCCMake

Technical Skills

CLI DevelopmentError HandlingPythonAPI DevelopmentDriver InteractionGPU Management

ROCm/rocm-systems

Nov 2024 Jun 2025
8 Months active

Languages Used

C++MarkdownPythonShellCCMake

Technical Skills

API DesignAPI DevelopmentCLI DevelopmentCLI ToolsDriver DevelopmentDriver Management

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