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DeepSpeed

As explained in LLMs in Production

DeepSpeed is an optimization library for distributed deep learning that provides training and inference efficiency features.

DeepSpeed is a distributed deep-learning optimization library for making training and inference faster and more scalable, especially on multi-GPU systems. It targets long or multimodal inputs, quantization, cached weights and inputs, and workloads scaling to thousands of GPUs. section 5.1.2

Use DeepSpeed when the workload needs:

  • Multi-GPU scaling, memory management, gradient checkpointing, or caching. section 5.1.2
  • Training and inference acceleration with quantization, while recognizing that accuracy may depend on the configuration. section 5.1.2
  • A Linux-oriented setup; Windows has partial support and requires additional inference configuration. section 5.1.2

How LLMs in Production covers it

How deep it goes
Describes major optimizations and installation constraints, but does not explain implementation internals.
Examples
Uses multi-GPU workloads, long or multimodal inputs, quantized inference, and pip-based installation as practical examples.
What it assumes
Assumes familiarity with deep learning and GPUs; requires CUDA configuration and PyTorch before installation.
What you can do after
Operate/configure DeepSpeed after preparing a compatible CUDA Toolkit and current non-nightly PyTorch installation.
How it connects
Connects distributed deep learning with quantization, caching, gradient checkpointing, memory management, and multi-GPU scaling.

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