

Deepep
Overview :
DeepEP is a communication library specifically designed for Mixture-of-Experts (MoE) and Expert Parallel (EP) models. It provides high-throughput and low-latency fully connected GPU kernels, supporting low-precision operations (such as FP8). The library is optimized for asymmetric domain bandwidth forwarding, making it suitable for training and inference pre-filling tasks. Furthermore, it supports Stream Multiprocessor (SM) count control and introduces a hook-based communication-computation overlap method that doesn't consume any SM resources. While its implementation differs slightly from the DeepSeek-V3 paper, DeepEP's optimized kernels and low-latency design enable excellent performance in large-scale distributed training and inference tasks.
Target Users :
DeepEP is designed for researchers, engineers, and enterprise users needing to efficiently run Mixture-of-Experts (MoE) models in large-scale distributed environments. It's particularly well-suited for deep learning projects requiring optimized communication performance, reduced latency, and improved compute resource utilization. Whether training large language models or performing efficient inference tasks, DeepEP delivers significant performance improvements.
Use Cases
In large-scale distributed training, utilize DeepEP's high-throughput kernels to accelerate MoE model dispatch and combine operations, significantly improving training efficiency.
During inference, leverage DeepEP's low-latency kernels for rapid decoding, suitable for applications with stringent real-time requirements.
Through the communication-computation overlap method, DeepEP further optimizes inference task performance without consuming additional GPU resources.
Features
Supports high-throughput and low-latency fully connected GPU kernels for MoE model dispatch and combine operations.
Optimized for asymmetric domain bandwidth forwarding, such as data transfer from NVLink to RDMA domains.
Supports low-latency kernels using pure RDMA communication, ideal for latency-sensitive inference decoding tasks.
Provides a hook-based communication-computation overlap method, consuming no GPU SM resources and improving resource utilization.
Supports various network configurations, including InfiniBand and RDMA over Converged Ethernet (RoCE).
How to Use
1. Ensure your system meets the hardware requirements, including Hopper architecture GPUs and RDMA-capable network devices.
2. Install dependencies, including Python 3.8 or higher, CUDA 12.3 or higher, and PyTorch 2.1 or higher.
3. Download and install DeepEP's dependency library NVSHMEM, following the official installation guide.
4. Install DeepEP using the command `python setup.py install`.
5. Import the `deep_ep` module into your project and call its provided functions, such as `dispatch` and `combine`, as needed.
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