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  • Book Overview & Buying Build Supercomputers with Raspberry Pi 3
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Build Supercomputers with Raspberry Pi 3

Build Supercomputers with Raspberry Pi 3

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

Build Supercomputers with Raspberry Pi 3

4.3 (7)
By: Carlos R. Morrison
Buy this Book

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
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
Free Chapter
1
1. Getting Started with Supercomputing
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1. Getting Started with Supercomputing
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Von Neumann architecture
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Flynn's classical taxonomy
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Historical perspective
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The need for greater processing speed
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Additional analytical perspective
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Sources for reference
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Summary
2
2. One Node Supercomputing
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2. One Node Supercomputing
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Linux installation
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PC processor
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Accessing processor technical details
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Write/run serial π code
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Message passing interface
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Summary
3
3. Preparing the Initial Two Nodes
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3. Preparing the Initial Two Nodes
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Listing of parts
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The Pi2/Pi3 computer
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Project overview
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Super stack assembly
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Preparing the master node
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Transferring the code
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Preparing the slave node
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Summary
4
4. Static IP Address and Hosts File Setup
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4. Static IP Address and Hosts File Setup
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Configuring static IP address of the master Pi
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Configuring a network switch static IP address
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Hosts file setup
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Summary
5
5. Creating a Common User for All Nodes
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5. Creating a Common User for All Nodes
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Adding a new user for all nodes
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ID key generation
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ID key transfer
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Summary
6
6. Creating a Mountable Drive on the Master Node
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6. Creating a Mountable Drive on the Master Node
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Summary
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7. Configuring the Eight Nodes
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7. Configuring the Eight Nodes
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Automating mounting of drives
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Setting up the host file for all nodes
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Formatting the remaining slave SD cards
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Copying the slave1 SD card image to the main computer drive
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Copying the slave1 image to the remaining slave SD cards
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Summary
8
8. Testing the Super Cluster
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8. Testing the Super Cluster
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Wielding the -H command
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Pi2 supercomputing
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Pi3 supercomputing
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Creating bash files
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Using unrestrained MPI code logic
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Summary
9
9. Real-World Math Application
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9. Real-World Math Application
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MPI Taylor series sine(x) function
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MPI Taylor series cosine(x) function
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MPI Taylor series tan(x) function
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MPI Taylor series ln(x) function
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Summary
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10. Real-World Physics Application
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10. Real-World Physics Application
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MPI concurrent wave equation and code
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Summary
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11. Real-World Engineering Application
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11. Real-World Engineering Application
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MPI Fourier series sawtooth signal
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Summary
12
A. Appendix
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A. Appendix
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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

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