

Bytedance Flux
Overview :
Flux is a high-performance communication overlap library developed by ByteDance, designed for tensor and expert parallelism on GPUs. Through efficient kernels and compatibility with PyTorch, it supports various parallelization strategies and is suitable for large-scale model training and inference. Flux's main advantages include high performance, ease of integration, and support for multiple NVIDIA GPU architectures. It excels in large-scale distributed training, particularly with Mixture-of-Experts (MoE) models, significantly improving computational efficiency.
Target Users :
Flux is primarily aimed at deep learning researchers and engineers who need to train and infer large-scale models on GPUs, especially those using the PyTorch framework and MoE models. It helps them improve model training efficiency and inference performance while reducing hardware resource costs.
Use Cases
In large-scale MoE models, Flux can significantly reduce communication overhead and improve model training speed.
Researchers can utilize Flux's efficient kernels to optimize the inference performance of existing models.
Developers can integrate Flux into PyTorch projects to improve the efficiency of distributed training.
Features
Supports multiple GPU architectures, including Ampere, Ada Lovelace, and Hopper
Provides high-performance communication overlap kernels to optimize computational efficiency
Deeply integrated with PyTorch for easy use within existing frameworks
Supports multiple data types, including float16 and float32
Provides detailed installation guides and usage examples to help developers get started quickly
How to Use
1. Clone the Flux repository from GitHub and install dependencies.
2. Select the appropriate build options based on your GPU architecture and run the build.sh script.
3. After installation, test the functionality using the example code provided by Flux.
4. Integrate Flux into your PyTorch project and implement communication overlap by calling its API.
5. Adjust Flux's configuration as needed to optimize model training and inference performance.
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