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.
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.

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
| Component | Open / This Approach | Proprietary Alternative |
|---|---|---|
| Performance | Up to 3x speedup | Limited to specific hardware |
| Optimization | TileLang compiler framework | Custom 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.
Key Links