PyTorch* Optimizations from Intel
Speed Up AI from Research to Production Deployment
Maximize PyTorch Performance on Intel® Hardware
PyTorch* is an AI and machine learning framework popular for both research and production usage. This open source library is often used for deep learning applications whose compute-intensive training and inference test the limits of available hardware resources.
Intel releases its newest optimizations and features in Intel® Extension for PyTorch* before upstreaming them into open source PyTorch.
With a few lines of code, you can use Intel Extension for PyTorch to:
- Take advantage of the most up-to-date Intel software and hardware optimizations for PyTorch.
- Automatically mix different precision data types to reduce the model size and computational workload for inference.
- Add your own performance customizations using APIs.
Intel also works closely with the open source PyTorch project to optimize the PyTorch framework for Intel hardware. These optimizations for PyTorch, along with the extension, are part of the end-to-end suite of Intel® AI and machine learning development tools and resources.
Download as Part of the Toolkit
PyTorch and Intel Extension for PyTorch are available in the Intel® AI Analytics Toolkit, which provides accelerated machine learning and data analytics pipelines with optimized deep learning frameworks and high-performing Python* libraries.
Develop in the Cloud
Build and optimize oneAPI multiarchitecture applications using the latest optimized Intel® oneAPI and AI tools, and test your workloads across Intel® CPUs and GPUs. No hardware installations, software downloads, or configuration necessary. Free for 120 days with extensions possible.
Download the Stand-Alone Versions
Stand-alone versions of PyTorch and Intel Extension for PyTorch are available. You can install them using a package manager or build from the source.
Help Intel® Extension for PyTorch* Evolve
This open source component has an active developer community. We welcome you to participate.
Open Source Version (GitHub*)
Features
Open Source PyTorch Powered by Optimizations from Intel
- Accelerate PyTorch training and inference with Intel® oneAPI Deep Neural Network Library (oneDNN) features such as graph and node optimizations.
- Take advantage of Intel® Deep Learning Boost, Intel® Advanced Vector Extensions (Intel® AVX-512), and Intel® Advanced Matrix Extensions (Intel® AMX) instruction set features to parallelize and accelerate PyTorch workloads.
- Perform distributed training with oneAPI Collective Communications Library (oneCCL) bindings for PyTorch.
Intel Extension for PyTorch Optimizations and Features
- Apply the newest performance optimizations not yet in PyTorch with minimal code changes.
- Parallelize operations without having to analyze task dependencies.
- Automatically mix operator data type precision between float32 and bfloat16 to reduce computational workload and model size.
- Convert to a channels-last memory format for faster image-based deep learning performance.
- Control aspects of the thread runtime such as multistream inference and asynchronous task spawning.
- Run PyTorch on Intel GPU hardware.
Optimized Deployment with OpenVINO™ Toolkit
- Import your PyTorch model into OpenVINO Runtime to compress model size and increase inference speed.
- Instantly target Intel CPUs, GPUs (integrated or discrete), VPUs, or FPGAs.
- Deploy with OpenVINO model server for optimized inference in microservice applications, container-based, or cloud environments. Scale using the same architecture API as KServe for inference execution and inference service provided in gRPC* or REST.
Benchmarks
Documentation & Code Samples
- PyTorch Documentation
- PyTorch Performance Tuning Guide
- Intel Extension for PyTorch
- TorchServe with Intel Extension for PyTorch
- oneCCL Bindings for PyTorch
Intel Extension for PyTorch Code Samples
- Single-Instance Training
- bfloat16 Inference—Imperative Mode
- bfloat16 Inference—TorchScript Mode
- int8 Deployment—Graph Mode
- C++ Dynamic Library
- GPU Single-Instance Training
- GPU Inference
Training & Tutorials
Stable Diffusion with Intel Arc GPUs
Improve Inference Performance of BERT Base Model for Network Security
Accelerated Image Segmentation Using PyTorch
Visual Quality Inspection for the Pharmaceutical Industry
Improve Human-AI Interactions with More Accessible Deep Learning
Optimize PyTorch* Performance on the Latest Intel® CPUs and GPUs
How to Improve TorchServe Inference Performance with Intel Extension for PyTorch
Demonstrations
Optimize PyTorch* Performance on the Latest Intel® CPUs and GPUs
Get deep insight into Intel Extension for PyTorch, learning the optimizations that deliver speedups on CPU and GPU. See these optimizations applied to computer vision and NLP models.
Increase PyTorch Inference Throughput by 4x
See how to accelerate PyTorch-based inferencing by applying optimizations from the Intel Extension for PyTorch and quantizing to int8.
Accelerate MedMNIST Training and Inference with Intel Extension for PyTorch
See how to use Intel Extension for PyTorch for training and inference on the MedMNIST datasets. It is compared against stock PyTorch and shows the performance gain that Intel Extension for PyTorch offers.
Speed Training 8x Using PyTorch with a oneCCL Back End
Compare the performance of distributed training of the deep learning recommendation model (DLRM) using oneCCL and other leading back-ends.
Case Studies
AI-Based Customer Service Automation—Conversations in the Cloud
MindTitan* and Intel worked together to optimize their TitanCS solution using Intel Extension for PyTorch, achieving improvements on inference performance running on Intel CPUs and driving better real-time call analysis.
L&T Technology Services Enhances Chest Radiology Outcomes
Chest-rAI* is a deep learning algorithm developed by L&T Technology Services (LTTS) to detect and isolate abnormalities in chest X-ray imagery. LTTS adopted the Intel AI Analytics toolkit and OpenVINO toolkit, reducing inference time by 46% and reducing their product development time from eight weeks to two weeks.
KT Optimizes Performance for Personalized Text-to-Speech
Technologists from KT (formerly Korea Telecom) and Intel worked together to optimize performance of the company’s P-TTS service. The optimized CPU-based solution increased real-time function (RTF) performance by 22 percent while maintaining voice quality and number of connections.
HippoScreen Improves AI Performance by 2.4x
The Taiwan-based neurotechnology startup used tools and frameworks in the Intel® oneAPI Base Toolkit and Intel AI Analytics Toolkit to the improve the efficiency and training times of deep-learning models used in its Brain Waves AI system.
News
Introducing Intel Extension for PyTorch for GPUs
This extension now supports Intel GPUs. Learn which features are supported in this release, how to install it, and how to get started running PyTorch on Intel GPUs.
Empower PyTorch on Intel® Xeon® Scalable processors with bfloat16
Intel and Meta continue to collaborate to improve PyTorch bfloat16 performance by taking advantage of Intel AVX-512 and Intel AMX instruction set extensions.
What Is New in Intel Extension for PyTorch
This presentation from the PyTorch Conference 2022 provides insight into the software optimizations and features (such as GPU support) that are introduced in Intel Extension for PyTorch and upstreamed to open source PyTorch over time.
New Performance Features for AI Developers in PyTorch 2.0
The PyTorch 2.0 release featured significant performance improvements. Learn about four key optimizations that Intel contributed to in this release of the open source framework.
Accelerate Deep Learning with Intel Extension for PyTorch
See how to use Intel Extension for PyTorch to take advantage of optimizations before they become part of a stock PyTorch release. Apply the newest developments to optimize your PyTorch models running on Intel hardware.
Intel and Facebook* Accelerate PyTorch Performance
Facebook* and Intel collaborated to improve PyTorch performance on 3rd generation Intel® Xeon® Scalable processors by harnessing the new bfloat16 capability in Intel® Deep Learning Boost, and deliver training and inference performance boosts for a variety of model and data types.
Specifications
Processors:
- Intel Xeon processor
- Intel® Core™ processor
- Intel GPU
Operating systems:
- Linux* (Intel Extension for PyTorch is for Linux only)
- Windows*
Languages:
- Python
- C++
Deploy PyTorch models to a variety of devices and operating systems with Intel Distribution of OpenVINO Toolkit.
Get Help
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