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Build Supercomputers with Raspberry Pi 3

Build Supercomputers with Raspberry Pi 3

By : Carlos R. Morrison
4.3 (7)
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Build Supercomputers with Raspberry Pi 3

Build Supercomputers with Raspberry Pi 3

4.3 (7)
By: Carlos R. Morrison

Overview of this book

Author Carlos R. Morrison (Staff Scientist, NASA) will empower the uninitiated reader to quickly assemble and operate a Pi3 supercomputer in the shortest possible time. The lifeblood of a supercomputer, the MPI code, is introduced early, and sample MPI code provides additional practice opportunities for you to test the effectiveness of your creation. You will learn how to configure various nodes and switches so that they can effectively communicate with each other. By the end of this book, you will have successfully built a supercomputer and the various applications related to it.
Table of Contents (13 chapters)
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Preface
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
1. Getting Started with Supercomputing
1. Getting Started with Supercomputing
Von Neumann architecture
Flynn's classical taxonomy
Historical perspective
The need for greater processing speed
Additional analytical perspective
Sources for reference
Summary
2
2. One Node Supercomputing
2. One Node Supercomputing
Linux installation
PC processor
Accessing processor technical details
Write/run serial π code
Message passing interface
Summary
3
3. Preparing the Initial Two Nodes
3. Preparing the Initial Two Nodes
Listing of parts
The Pi2/Pi3 computer
Project overview
Super stack assembly
Preparing the master node
Transferring the code
Preparing the slave node
Summary
4
4. Static IP Address and Hosts File Setup
4. Static IP Address and Hosts File Setup
Configuring static IP address of the master Pi
Configuring a network switch static IP address
Hosts file setup
Summary
5
5. Creating a Common User for All Nodes
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5. Creating a Common User for All Nodes
Adding a new user for all nodes
ID key generation
ID key transfer
Summary
6
6. Creating a Mountable Drive on the Master Node
6. Creating a Mountable Drive on the Master Node
Summary
7
7. Configuring the Eight Nodes
7. Configuring the Eight Nodes
Automating mounting of drives
Setting up the host file for all nodes
Formatting the remaining slave SD cards
Copying the slave1 SD card image to the main computer drive
Copying the slave1 image to the remaining slave SD cards
Summary
8
8. Testing the Super Cluster
8. Testing the Super Cluster
Wielding the -H command
Pi2 supercomputing
Pi3 supercomputing
Creating bash files
Using unrestrained MPI code logic
Summary
9
9. Real-World Math Application
9. Real-World Math Application
MPI Taylor series sine(x) function
MPI Taylor series cosine(x) function
MPI Taylor series tan(x) function
MPI Taylor series ln(x) function
Summary
10
10. Real-World Physics Application
10. Real-World Physics Application
MPI concurrent wave equation and code
Summary
11
11. Real-World Engineering Application
11. Real-World Engineering Application
MPI Fourier series sawtooth signal
Summary
12
A. Appendix
A. Appendix
Definitions

Chapter 5. Creating a Common User for All Nodes

Operating your supercomputer should be an effortless and pleasurable experience as you wield its massive power to crunch through difficult problems. Therefore, to facilitate this ease of use, we must create a common user for all nodes. This common user ties all the nodes together in one fell swoop, allowing you and the nodes to seamlessly communicate among themselves.

In this chapter, you will learn how to do the following:

  • Create a new user for the master node
  • Create a password for the new user on the master node
  • Create a new user for the slave1 node
  • Create a password for the new user on the slave1 node
  • Generate a special key on the master node for sshing effortlessly between the nodes in the supercomputer without using a password
  • Copy the special key from the master node to the slave1 node
  • Edit the .bashrc file on the master node to facilitate seamless special key access to all the nodes
  • Use the which command
End of Section 1
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