Book Image

Raspberry Pi By Example

By : Arush Kakkar
Book Image

Raspberry Pi By Example

By: Arush Kakkar

Overview of this book

Want to put your Raspberry Pi through its paces right out of the box? This tutorial guide is designed to get you learning all the tricks of the Raspberry Pi through building complete, hands-on hardware projects. Speed through the basics and then dive right in to development! Discover that you can do almost anything with your Raspberry Pi with a taste of almost everything. Get started with Pi Gaming as you learn how to set up Minecraft, and then program your own game with the help of Pygame. Turn the Pi into your own home security system with complete guidance on setting up a webcam spy camera and OpenCV computer vision for image recognition capabilities. Get to grips with GPIO programming to make a Pi-based glowing LED system, build a complete functioning motion tracker, and more. Finally, get ready to tackle projects that push your Pi to its limits. Construct a complete Internet of Things home automation system with the Raspberry Pi to control your house via Twitter; turn your Pi into a super-computer through linking multiple boards into a cluster and then add in advanced network capabilities for super speedy processing!
Table of Contents (22 chapters)
Raspberry Pi By Example
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Installing and running GalaxSee


Now that we have a basic idea of what an N-Body simulation is and how different bodies interact with each other, we will proceed to the installation of the GalaxSee library.

First, we need to download the archive of the source code. We can do this with the wget command:

wget http://www.shodor.org/refdesk/Resources/Tutorials/MPIExamples/Gal.tgz

Next, we extract the .tgz archive, assuming it was downloaded to the home folder. If the path is different, we need to enter the correct path:

tar -xvzf ~/Gal.tgz

Navigate to the folder:

cd Gal

We need to use Makefile to successfully build GalaxSee on our Raspberry Pi. To do that, open the file in the terminal:

nano Makefile

Then, change the line:

cc = mpicc

to:

cc = mpic++

This is done so that the final result looks like this:

To build the program, simply run this:

make

Now if you enter ls inside the Gal folder, you will see a newly created executable file named GalaxSee. Run the file with the following command:

./GalaxSee...