siliconflow/pytorch

siliconflow/pytorch

Description: Tensors and Dynamic neural networks in Python with strong GPU acceleration

License: NOASSERTION

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Created: 2024-03-21T07:34:30Z

Pushed: 2024-05-10T01:10:00Z

Default branch: main

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Parent repository: pytorch/pytorch

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README: !PyTorch Logo

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PyTorch is a Python package that provides two high-level features:

• Tensor computation (like NumPy) with strong GPU acceleration
• Deep neural networks built on a tape-based autograd system

You can reuse your favorite Python packages such as NumPy, SciPy, and Cython to extend PyTorch when needed.

Our trunk health (Continuous Integration signals) can be found at hud.pytorch.org.

• [More About PyTorch](#more-about-pytorch)
• [A GPU-Ready Tensor Library](#a-gpu-ready-tensor-library)
• [Dynamic Neural Networks: Tape-Based Autograd](#dynamic-neural-networks-tape-based-autograd)
• [Python First](#python-first)
• [Imperative Experiences](#imperative-experiences)
• [Fast and Lean](#fast-and-lean)
• [Extensions Without Pain](#extensions-without-pain)
• [Installation](#installation)
• [Binaries](#binaries)
• [NVIDIA Jetson Platforms](#nvidia-jetson-platforms)
• [From Source](#from-source)
• [Prerequisites](#prerequisites)
• [Install Dependencies](#install-dependencies)
• [Get the PyTorch Source](#get-the-pytorch-source)
• [Install PyTorch](#install-pytorch)
• [Adjust Build Options (Optional)](#adjust-build-options-optional)
• [Docker Image](#docker-image)
• [Using pre-built images](#using-pre-built-images)
• [Building the image yourself](#building-the-image-yourself)
• [Building the Documentation](#building-the-documentation)
• [Previous Versions](#previous-versions)
• [Getting Started](#getting-started)
• [Resources](#resources)
• [Communication](#communication)
• [Releases and Contributing](#releases-and-contributing)
• [The Team](#the-team)
• [License](#license)

More About PyTorch

Learn the basics of PyTorch

At a granular level, PyTorch is a library that consists of the following components:

| Component | Description | | ---- | --- | | **torch** | A Tensor library like NumPy, with strong GPU support | | **torch.autograd** | A tape-based automatic differentiation library that supports all differentiable Tensor operations in torch | | **torch.jit** | A compilation stack (TorchScript) to create serializable and optimizable models from PyTorch code | | **torch.nn** | A neural networks library deeply integrated with autograd designed for maximum flexibility | | **torch.multiprocessing** | Python multiprocessing, but with magical memory sharing of torch Tensors across processes. Useful for data loading and Hogwild training | | **torch.utils** | DataLoader and other utility functions for convenience |

Usually, PyTorch is used either as:

• A replacement for NumPy to use the power of GPUs.
• A deep learning research platform that provides maximum flexibility and speed.

Elaborating Further:

A GPU-Ready Tensor Library

If you use NumPy, then you have used Tensors (a.k.a. ndarray).


PyTorch provides Tensors that can live either on the CPU or the GPU and accelerates the computation by a huge amount.

We provide a wide variety of tensor routines to accelerate and fit your scientific computation needs such as slicing, indexing, mathematical operations, linear algebra, reductions. And they are fast!

Dynamic Neural Networks: Tape-Based Autograd

PyTorch has a unique way of building neural networks: using and replaying a tape recorder.

Most frameworks such as TensorFlow, Theano, Caffe, and CNTK have a static view of the world. One has to build a neural network and reuse the same structure again and again. Changing the way the network behaves means that one has to start from scratch.

With PyTorch, we use a technique called reverse-mode auto-differentiation, which allows you to change the way your network behaves arbitrarily with zero lag or overhead. Our inspiration comes from several research papers on this topic, as well as current and past work such as torch-autograd, autograd, Chainer, etc.

While this technique is not unique to PyTorch, it's one of the fastest implementations of it to date. You get the best of speed and flexibility for your crazy research.

!Dynamic graph

Python First

PyTorch is not a Python binding into a monolithic C++ framework. It is built to be deeply integrated into Python. You can use it naturally like you would use NumPy / SciPy / scikit-learn etc. You can write your new neural network layers in Python itself, using your favorite libraries and use packages such as Cython and Numba. Our goal is to not reinvent the wheel where appropriate.

Imperative Experiences

PyTorch is designed to be intuitive, linear in thought, and easy to use. When you execute a line of code, it gets executed. There isn't an asynchronous view of the world. When you drop into a debugger or receive error messages and stack traces, understanding them is straightforward. The stack trace points to exactly where your code was defined. We hope you never spend hours debugging your code because of bad stack traces or asynchronous and opaque execution engines.

Fast and Lean

PyTorch has minimal framework overhead. We integrate acceleration libraries such as Intel MKL and NVIDIA (cuDNN, NCCL) to maximize speed. At the core, its CPU and GPU Tensor and neural network backends are…