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Python Parallel Programming Cookbook

Python Parallel Programming Cookbook

By : Zaccone
4.1 (11)
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Python Parallel Programming Cookbook

Python Parallel Programming Cookbook

4.1 (11)
By: Zaccone

Overview of this book

This book will teach you parallel programming techniques using examples in Python and will help you explore the many ways in which you can write code that allows more than one process to happen at once. Starting with introducing you to the world of parallel computing, it moves on to cover the fundamentals in Python. This is followed by exploring the thread-based parallelism model using the Python threading module by synchronizing threads and using locks, mutex, semaphores queues, GIL, and the thread pool. Next you will be taught about process-based parallelism where you will synchronize processes using message passing along with learning about the performance of MPI Python Modules. You will then go on to learn the asynchronous parallel programming model using the Python asyncio module along with handling exceptions. Moving on, you will discover distributed computing with Python, and learn how to install a broker, use Celery Python Module, and create a worker. You will understand anche Pycsp, the Scoop framework, and disk modules in Python. Further on, you will learnGPU programming withPython using the PyCUDA module along with evaluating performance limitations.
Table of Contents (8 chapters)
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7
Index

Using Celery to distribute tasks


Celery is a Python framework used to manage a distributed task, following the Object-Oriented Middleware approach. Its main feature consists of handling many small tasks and distributing them on a large number of computational nodes. Finally, the result of each task will then be reworked in order to compose the overall solution.

To work with Celery, we need the following components:

  • The Celery module (of course!!)

  • A message broker. This is a Celery-independent software component, the middleware, used to send and receive messages to distributed task workers. A message broker is also known as a message middleware. It deals with the exchange of messages in a communication network. The addressing scheme of this type of middleware is no longer of the point-to-point type but is a message-oriented addressing scheme. The best known is the Publish/Subscribe paradigm.

    The message broker architecture

Celery supports many types of message brokers—the most complete of which...

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