Optimizing PyTorch models with Neural Network Compression Framework of OpenVINO™ by 8-bit quantization.
This tutorial demonstrates how to use NNCF 8-bit quantization to optimize the PyTorch model for inference with OpenVINO Toolkit. For more advanced usage, refer to these examples.
This notebook is based on 'ImageNet training in PyTorch' example. To speed up download and training, use a ResNet-18 model with the Tiny ImageNet dataset.
This tutorial consists of the following steps:
- Transforming the original
FP32
model toINT8
- Using fine-tuning to restore the accuracy.
- Exporting optimized and original models to ONNX and then to OpenVINO
- Measuring and comparing the performance of the models.
If you have not installed all required dependencies, follow the Installation Guide.