Book Image

Python Parallel Programming Cookbook - Second Edition

By : Giancarlo Zaccone
Book Image

Python Parallel Programming Cookbook - Second Edition

By: Giancarlo Zaccone

Overview of this book

<p>Nowadays, it has become extremely important for programmers to understand the link between the software and the parallel nature of their hardware so that their programs run efficiently on computer architectures. Applications based on parallel programming are fast, robust, and easily scalable. </p><p> </p><p>This updated edition features cutting-edge techniques for building effective concurrent applications in Python 3.7. The book introduces parallel programming architectures and covers the fundamental recipes for thread-based and process-based parallelism. You'll learn about mutex, semaphores, locks, queues exploiting the threading, and multiprocessing modules, all of which are basic tools to build parallel applications. Recipes on MPI programming will help you to synchronize processes using the fundamental message passing techniques with mpi4py. Furthermore, you'll get to grips with asynchronous programming and how to use the power of the GPU with PyCUDA and PyOpenCL frameworks. Finally, you'll explore how to design distributed computing systems with Celery and architect Python apps on the cloud using PythonAnywhere, Docker, and serverless applications. </p><p> </p><p>By the end of this book, you will be confident in building concurrent and high-performing applications in Python.</p>
Table of Contents (16 chapters)
Title Page

What is debugging?

The term debugging indicates the activity of identifying the portion of code in which one or more errors (bugs) are detected in software following its use.

The error can be localized during the testing phase of the program; that is when it is still in the development phase and is not yet ready to be used by the end-user, or during the use of the program by the latter. After finding the error, the debugging phase ensues and identifies the software part in which the error lies, which is sometimes very complex.

Nowadays, this activity is supported by specific applications and debuggers, which show the execution to the programmer using step-by-step software instructions, allowing the viewing and analysis of the inputs and outputs of the program itself at the same time.

Before these tools were available for the activity of identifying and correcting errors...