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Learning Julia

You're reading from   Learning Julia Build high-performance applications for scientific computing

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Product type Paperback
Published in Nov 2017
Publisher Packt
ISBN-13 9781785883279
Length 316 pages
Edition 1st Edition
Languages
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Authors (2):
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Rahul Lakhanpal Rahul Lakhanpal
Author Profile Icon Rahul Lakhanpal
Rahul Lakhanpal
Anshul Joshi Anshul Joshi
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Anshul Joshi
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Table of Contents (11) Chapters Close

Preface 1. Understanding Julia's Ecosystem FREE CHAPTER 2. Programming Concepts with Julia 3. Functions in Julia 4. Understanding Types and Dispatch 5. Working with Control Flow 6. Interoperability and Metaprogramming 7. Numerical and Scientific Computation with Julia 8. Data Visualization and Graphics 9. Connecting with Databases 10. Julia’s Internals

Tasks in Julia

Tasks are a feature similar to coroutines in other languages. They help us to suspend an operation and resume when required.

In normal sequential code, when we call a function, let's say f1, and then call function f2, it's understood that f2 will start when the f1 function ends. But, in this whole operation, we do not have any control over the function once it has started to execute itself. A task in Julia is different, as it allows itself to be interrupted while getting executed!

Julia provides a function named task() to create any function as a task (also known as a coroutine). This makes the function behave differently from usual. However, the whole process is very different from a function call. There are two main reasons for this:

  • At the time when we want to interrupt and resume a task, there is no space...
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