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Accelerate Model Training with PyTorch 2.X

Accelerate Model Training with PyTorch 2.X

By : Maicon Melo Alves
4.4 (10)
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Accelerate Model Training with PyTorch 2.X

Accelerate Model Training with PyTorch 2.X

4.4 (10)
By: Maicon Melo Alves

Overview of this book

This book, written by an HPC expert with over 25 years of experience, guides you through enhancing model training performance using PyTorch. Here you’ll learn how model complexity impacts training time and discover performance tuning levels to expedite the process, as well as utilize PyTorch features, specialized libraries, and efficient data pipelines to optimize training on CPUs and accelerators. You’ll also reduce model complexity, adopt mixed precision, and harness the power of multicore systems and multi-GPU environments for distributed training. By the end, you'll be equipped with techniques and strategies to speed up training and focus on building stunning models.
Table of Contents (17 chapters)
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1
Part 1: Paving the Way
4
Part 2: Going Faster
10
Part 3: Going Distributed

Remembering numeric precision

Before diving into the benefits of adopting a mixed precision strategy, it is essential to ground you on numeric representation and common data types. Let’s start by remembering how computers represent numbers.

How do computers represent numbers?

A computer is a machine – endowed with finite resources – that’s designed to work on bits, the smallest unit of information it can manage. As numbers are infinite, computer designers had to put a lot of effort into finding a solution to represent this theoretical concept in a real machine.

To get the work done, computer designers needed to deal with three key factors regarding numeric representation:

  • Sign: Whether the number is positive or negative
  • Range: The interval of the represented numbers.
  • Precision: The number of decimal places.

Considering these elements, computer architects successfully defined numeric data types to represent not only integer...

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