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Stonepia

PROFILE

Stonepia

Tong Su engineered robust XPU and GPU backend features and stability improvements across PyTorch, intel/torch-xpu-ops, and related repositories. Over eight months, Tong delivered hardware-accelerated matrix multiplication, FP8 quantization support, and enhanced model export reliability, using C++, Python, and CUDA. He addressed backend correctness by aligning memory formats and error handling with upstream PyTorch, implemented accelerator-aware testing frameworks, and resolved critical bugs affecting tensor operations and CI stability. Tong’s work demonstrated depth in debugging, performance optimization, and hardware integration, resulting in faster, more reliable deep learning workflows and expanded hardware support for both training and inference scenarios.

Overall Statistics

Feature vs Bugs

29%Features

Repository Contributions

20Total
Bugs
12
Commits
20
Features
5
Lines of code
2,687
Activity Months8

Work History

March 2026

2 Commits

Mar 1, 2026

March 2026: Delivered critical backend correctness and compatibility fixes across ROCm/pytorch and PyTorch core, aligning the XPU backend with PyTorch updates and adapting tensorwise scaling to the oneDNN upgrade. Implemented testing framework enhancements to improve validation coverage and reduce regression risk, with commits linked to key PRs for traceability.

February 2026

2 Commits

Feb 1, 2026

February 2026 highlights: focused stability and consistency improvements across two XPU-enabled repos, with targeted fixes to align with upstream PyTorch and maintain CI reliability ahead of the v2.11 window.

January 2026

5 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary highlighting XPU-related stability improvements, safetensor XPU support, and tensor operation fixes across PyTorch core and related repos. Delivered features and bug fixes with explicit commit references, improving runtime stability on XPU devices, expanding tensor data type support, and strengthening CI robustness. Key wins include safe fallback for unsupported fast_accum on XPU, safetensor int4PlainInt32Tensor support, transpose fix for float8 in inference, XPU test skipping to prevent false negatives, and MaxUnpooling crash prevention.

December 2025

2 Commits • 2 Features

Dec 1, 2025

Month 2025-12 summary highlighting XPU-accelerated operations in PyTorch and FP8 accelerator support, with a focus on business value, performance, and hardware utilization. Delivered XPU-accelerated matrix multiply paths and robust hardware-aware tests across two repos, enabling faster workloads and broader hardware coverage.

November 2025

6 Commits • 2 Features

Nov 1, 2025

November 2025 performance summary focused on delivering robust XPU capabilities in PyTorch and Intel XPU Ops, with emphasis on expanding test coverage, enabling FP8 scaling for XPU, and stabilizing critical operations.

July 2025

1 Commits

Jul 1, 2025

July 2025 monthly summary for liguodongiot/transformers: Delivered a GPU model export compatibility fix for convert_and_export_with_cache, hardened tensor device handling, and improved export reliability across diverse GPU configurations. This work reduces export failures and enhances deployment readiness across hardware setups.

November 2024

1 Commits

Nov 1, 2024

Month 2024-11 focused on stabilizing the test suite for the intel/torch-xpu-ops repository by implementing a targeted workaround to prevent CPU-specific flaky failures. The effort prioritized reliability and faster feedback for developers during PR reviews and CI runs.

October 2024

1 Commits

Oct 1, 2024

October 2024: Focused on CI observability improvements for intel/torch-xpu-ops by fixing kernel version reporting in on-demand tests. The change ensures the kernel version is captured and surfaced in CI outputs, enhancing traceability, reproducibility, and debugging efficiency across CI runs.

Activity

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Quality Metrics

Correctness92.0%
Maintainability83.0%
Architecture86.0%
Performance84.0%
AI Usage34.0%

Skills & Technologies

Programming Languages

C++PythonYAML

Technical Skills

C++C++ developmentCI/CDCUDADebuggingDeep LearningDeep learning frameworksDevOpsError HandlingGPU ProgrammingGPU programmingMachine LearningModel ExportingNumerical ComputingPerformance Optimization

Repositories Contributed To

6 repos

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

pytorch/pytorch

Nov 2025 Mar 2026
5 Months active

Languages Used

C++PythonYAML

Technical Skills

C++ developmentGPU programmingMachine LearningNumerical ComputingPythonXPU architecture

intel/torch-xpu-ops

Oct 2024 Feb 2026
5 Months active

Languages Used

YAMLPythonC++

Technical Skills

CI/CDDevOpsYAML configurationdebuggingsoftware developmenttesting

pytorch/ao

Dec 2025 Jan 2026
2 Months active

Languages Used

Python

Technical Skills

PyTorchXPU supportquantizationtestingDebuggingPython Development

liguodongiot/transformers

Jul 2025 Jul 2025
1 Month active

Languages Used

Python

Technical Skills

Deep LearningMachine LearningModel ExportingPyTorch

pytorch-labs/helion

Jan 2026 Jan 2026
1 Month active

Languages Used

Python

Technical Skills

Pythonbackend developmenttesting

ROCm/pytorch

Mar 2026 Mar 2026
1 Month active

Languages Used

Python

Technical Skills

PyTorchbackend developmenttesting