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Pytorch Fsdp

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davila7·vlatest·ai-ml·MIT

PyTorch FSDP accelerates large model training by intelligently distributing data across multiple GPUs, boosting efficiency and reducing memory footprint.

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  1. 1

    Run this in your project

    terminal
    $ npx skills add davila7/claude-code-templates --skill pytorch-fsdp -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

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davila7

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    SKILL.md parses and declares a name and a description.

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Commit
79182c51fb
Manifest
cli-tool/components/skills/ai-research/distributed-training-pytorch-fsdp/SKILL.md
Scanned
2 files, 119 lines
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About this skill

The pytorch-fsdp skill enables AI agents to configure and utilize PyTorch Fully Sharded Data Parallelism (FSDP) for training large-scale models. It automates the setup of sharding strategies, mixed precision training, and memory optimization across distributed GPU clusters.

When to use it

  • Training transformer-based language models with billions of parameters that exceed single-GPU memory limits.
  • Scaling deep learning workloads across multi-node clusters to reduce time-to-training.
  • Implementing efficient parameter sharding to minimize inter-process communication overhead during gradient synchronization.
  • Optimizing memory usage by combining FSDP with ZeRO stages or mixed precision (AMP) for faster iteration.

Key capabilities

  • Automatic configuration of FullyShardedDataParallel wrappers around model instances.
  • Support for sharding gradients, optimizer states, and parameters to distribute memory load.
  • Integration with standard PyTorch distributed training loops and data loaders.
  • Configuration options for mixed precision training (fp16, bf16) within the FSDP context.

Example prompts

  • "Set up a PyTorch script using FSDP to train a Llama-2 model across 8 GPUs with gradient sharding enabled."
  • "Generate code that wraps my transformer model in FullyShardedDataParallel and configures it for mixed precision training on an A100 cluster."
  • "Create a distributed training script using FSDP that handles parameter sharding and ensures compatibility with standard DDP data loaders."

Tips & gotchas

Ensure your environment has compatible versions of PyTorch and the torch.distributed module installed before applying this skill. Be aware that FSDP requires specific initialization of the distributed process group (init_process_group) before wrapping the model, which may require adjustments to existing training boilerplate code.