CS5720 - Week 9
Slide 175 of 180

Saving and Loading Models

Model Persistence Fundamentals

Model persistence is crucial for deploying trained models, resuming training, and sharing work. PyTorch offers flexible approaches for saving model state.
💾
State Dict
Save/load model parameters only (recommended approach)
📦
Whole Model
Save entire model object (less flexible but simpler)
⏱️
Checkpoint
Save training state including optimizer and scheduler
🚀
TorchScript
Production-ready serialization for deployment

Loading Strategies

  • 🔄
    Basic Loading
    Load saved models for inference or continued training
  • 🎯
    Transfer Learning
    Load pre-trained models and adapt for new tasks
  • 🧩
    Partial Loading
    Load specific layers or handle architecture changes
  • 💻
    Device Mapping
    Handle GPU/CPU device differences during loading

Model Persistence Best Practices

🏭
Production Deployment
Learn TorchScript and ONNX export for production environments with examples
📝
Model Versioning
Strategies for managing model versions and metadata tracking
🗜️
Model Compression
Techniques for reducing model size while maintaining performance
Prepared by Dr. Gorkem Kar