Mastering Multithreading Programming with Go (Golang)

Mastering Multithreading Programming with Go (Golang)

English | MP4 | AVC 1280×720 | AAC 48KHz 2ch | 4 Hours | 1.80 GB

Learn about Multithreading, Concurrency & Parallel programming with practical and fun examples in Google’s Go Lang

The mood in the meeting on the 12th floor of an international investment bank was as bleak as it gets. The developers of the firm met to discuss the best way forward after a critical core application failed and caused a system wide outage.

“Guys, we have a serious issue here. I found out that the outage was caused by a race condition in our code, introduced a while ago and triggered last night.” says Mark Adams, senior developer.

The room goes silent. The cars outside the floor to ceiling windows slowly and silently creep along in the heavy city traffic. The senior developers immediately understand the severity of the situation, realizing that they will now be working around the clock to fix the issue and sort out the mess in the datastore. The less experienced developers understand that a race condition is serious but don’t know exactly what causes it and therefore keep their mouths shut.

Eventually Brian Holmes, delivery manager, breaks the silence with “The application has been running for months without any problems, we haven’t released any code recently, how is it possible that the software just broke down?!”

Everyone shakes their heads and goes back to their desk leaving Brian in the room alone, puzzled. He takes out his phone and googles “race condition”.

Sound familiar? How many times have you heard another developer talking about using threads and concurrent programming to solve a particular problem but out of fear you stayed out of the discussion?

Here’s the little secret that senior developers will never share… Multithreading programming is not much harder than normal programming. Developers are scared of concurrent programming because they think it is an advanced topic that only highly experienced developers get to play with.

This is far from the truth. Our minds are very much used to dealing with concurrency. In fact we do this in our everyday life without any problem but somehow we struggle to translate this into our code. One of the reasons for this is that we’re not familiar with the concepts and tools available to us to manage this concurrency. This course is here to help you understand how to use multithreading tools and concepts to manage your parallel programming. It is designed to be as practical as possible. We start with some theory around parallelism and then explain how the operating system handles multiple processes and threads. Later we move on to explain the multiple tools available by solving example problems using multithreading.

In this course we use Google’s Go programming language with its goroutines, however the concepts learned here can be applied to most programming languages.

All code in this course can be found on github, username/project: cutajarj/multithreadingingo

What you’ll learn

  • Discover how to create responsive and high performance software.
  • See how to use multithreading for modeling certain types of problems and simulations.
  • Develop programs with Golang that are highly Concurrent and Parallel.
  • Understand the advantages, limits and properties of Parallel computing.
  • Improve your programming skills in Go with more advanced, mulithreading topics.
  • Learn about goroutines, mutexes, reader writers locks, waitgroups, channels, condition variables and more.
Table of Contents

Introduction
1 Understanding Parallel Computing
2 More on Parallel Computing
3 Links and Resources for this course

Creating and using Threads
4 Processes, Threads and Green threads
5 Using Goroutines for Boids
6 Groundwork for our simulation
7 Starting our Goroutines
8 Memory sharing between Threads
9 Memory Sharing example Part 1
10 Memory Sharing example Part 2

Thread Synchronization with Mutexes
11 Why do we need Locking
12 Using Mutexes in Boid simulation
13 Adding Synchronization to simulation
14 Readers-Writer Locks
15 Boid Synchronization with Readers-Writers Locks

Waiting for Completed tasks
16 Understanding WaitGroups
17 Concurrent file searching with WaitGroups

Message passing with Channels
18 Thread Communication using Channels
19 Pipelining Example
20 Understanding Thread Pools
21 Thread Pool Example Part 1
22 Thread Pool Example Part 2

Synchronization using Condition Variables
23 What’s a Condition Variable
24 Parallel Algorithm for Matrix Multiplication
25 Implementing Parallel Matrix Multiplication Part 1
26 Implementing Parallel Matrix Multiplication Part 2

Deadlocks
27 Deadlocking Robots, Philosophers and Trains
28 Simple Deadlock Example
29 Train Deadlock Example Part 1
30 Train Deadlock Example Part 2
31 Solving Deadlocks using Resource Hierarchy
32 Implementing Resource Hierarchy Solution
33 Solving Deadlocks using an Arbitrator
34 Implementing Arbitrator Solution