FlashQLA High-Performance Linear Attention Kernel Library

Introduction to FlashQLA

FlashQLA is built on the TileLang compiler framework, which allows for efficient operator fusion and optimized kernel computations. The library provides highly optimized kernels for attention operations, which are the core components of large language models. With FlashQLA, developers can achieve significant performance gains without modifying their existing model architectures.

3x

Speedup on NVIDIA Hopper GPUs

2-3x

Forward pass speedup

2x

Backward pass speedup

🚀  Optimizing Performance

FlashQLA is designed to optimize the performance of large language models, making them more efficient and scalable.

Architecture and Design

The Gated Delta Network (GDN) attention mechanism is a key component of the Qwen3.5 and Qwen3.6 model families. FlashQLA is designed to optimize the performance of this mechanism, providing highly optimized kernels for attention operations. The library uses the TileLang compiler framework, which allows for efficient operator fusion and optimized kernel computations.

Python
import flashqla
flashqla.optimize_gdn_attention()

Optimizing GDN attention using FlashQLA

Comparison with Other Libraries

FlashQLA is designed to provide a high-performance alternative to existing linear attention kernel libraries. It achieves significant performance gains compared to other libraries, making it an attractive option for developers working with large language models.

30%

Performance gain over existing libraries

📊  Performance Comparison

FlashQLA provides significant performance gains compared to other linear attention kernel libraries.

FlashQLA High-Performance Linear Attention Kernel Library — Comparison with Other Libraries
Comparison with Other Libraries

Conclusion and Future Work

FlashQLA is a high-performance linear attention kernel library that provides significant performance gains for large language models. It is designed to optimize the Gated Delta Network (GDN) attention mechanism, making it an attractive option for developers working with the Qwen3.5 and Qwen3.6 model families. Future work includes extending the library to support other attention mechanisms and optimizing its performance on different hardware platforms.


Comparison with Other Linear Attention Kernel Libraries

Comparison with Other Linear Attention Kernel Libraries

ComponentOpen / This ApproachProprietary Alternative
PerformanceUp to 3x speedupLimited to specific hardware
OptimizationTileLang compiler frameworkCustom optimization techniques

🔑  Key Takeaway

FlashQLA provides a high-performance alternative to existing linear attention kernel libraries, achieving significant performance gains for large language models. It is designed to optimize the Gated Delta Network (GDN) attention mechanism, making it an attractive option for developers working with the Qwen3.5 and Qwen3.6 model families.


Watch: Technical Walkthrough

By AI

To optimize for the 2026 AI frontier, all posts on this site are synthesized by AI models and peer-reviewed by the author for technical accuracy. Please cross-check all logic and code samples; synthetic outputs may require manual debugging

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