

Flashmla
Overview :
FlashMLA is a high-efficiency MLA decoding kernel optimized for Hopper GPUs, specifically designed for variable-length sequence services. Developed using CUDA 12.3 and above, it supports PyTorch 2.0 and above. FlashMLA's primary advantages lie in its efficient memory access and computational performance, achieving up to 3000 GB/s memory bandwidth and 580 TFLOPS computational performance on H800 SXM5. This technology is significant for deep learning tasks requiring large-scale parallel computing and efficient memory management, especially in natural language processing and computer vision. Inspired by FlashAttention 2&3 and the cutlass project, FlashMLA aims to provide researchers and developers with a highly efficient computational tool.
Target Users :
FlashMLA is designed for deep learning researchers and developers who require high-performance computing and memory management, particularly in natural language processing and computer vision. It significantly improves model inference speed and efficiency, making it ideal for handling large-scale data and complex computational tasks.
Use Cases
In natural language processing tasks, FlashMLA can significantly improve the inference speed of Transformer models.
In computer vision tasks, FlashMLA can optimize the memory access efficiency of convolutional neural networks.
In large-scale recommendation systems, FlashMLA can accelerate the computation of user behavior prediction models.
Features
Supports BF16 data format, enhancing computational efficiency and accuracy.
Provides a paged kvcache with a block size of 64, optimizing memory management.
Compatible with the Hopper GPU architecture, leveraging hardware acceleration capabilities.
Supports CUDA 12.3 and above, ensuring compatibility with the latest technology.
Integrates with PyTorch 2.0 for easy use in existing deep learning projects.
How to Use
1. Install FlashMLA: Run `python setup.py install` to complete the installation.
2. Run Benchmark Tests: Execute `python tests/test_flash_mla.py` to test performance.
3. Import the FlashMLA Module: Import the `flash_mla` module into your code.
4. Get Metadata: Call the `get_mla_metadata` function to obtain scheduling metadata.
5. Use the Decoding Kernel: Call the `flash_mla_with_kvcache` function for efficient decoding.
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