September 2016
Beginner to intermediate
593 pages
12h 12m
English
book
Raspberry Pi: Amazing Projects from Scratch
by Ashwin Pajankar, Arush Kakkar, Matthew Poole, Richard Grimmett
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Running code in parallel
We have now successfully completed the prerequisites for the running of code on multiple machines. We will now learn how to run our code on the Raspberry Pi cluster using the MPICH library. We will first run a demo included with the mpi4py module, and then we will run an N-Body simulation on our cluster. Sounds fun? Let's get into it.
First, we need to tell the MPICH library the IP address of each of the Pis in our network. This is done by simply creating a new file called machinefile in the home folder, which contains a list of the IP addresses of all the Raspberry Pis connected to our network. Execute the following command to create the file:
nano machinefile
Then, add the IP address of each Raspberry Pi in a new line ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.