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Build Supercomputers with Raspberry Pi 3

You're reading from   Build Supercomputers with Raspberry Pi 3 A step-by-step guide that will enhance your skills in creating powerful systems to solve complex issues

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781787282582
Length 254 pages
Edition 1st Edition
Languages
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Author (1):
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Carlos R. Morrison Carlos R. Morrison
Author Profile Icon Carlos R. Morrison
Carlos R. Morrison
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Table of Contents (13) Chapters Close

Preface 1. Getting Started with Supercomputing FREE CHAPTER 2. One Node Supercomputing 3. Preparing the Initial Two Nodes 4. Static IP Address and Hosts File Setup 5. Creating a Common User for All Nodes 6. Creating a Mountable Drive on the Master Node 7. Configuring the Eight Nodes 8. Testing the Super Cluster 9. Real-World Math Application 10. Real-World Physics Application 11. Real-World Engineering Application A. Appendix

MPI Fourier series sawtooth signal

We will now generate such a signal by first writing, and running the serial Fourier series sawtooth code, and then apply MPI technique to the sawtooth Fourier series equation depicted here:

MPI Fourier series sawtooth signal

The serial sawtooth(x) code is depicted on the following pages. On the master node, write, compile, and run this serial sawtooth(x) code (see the following serial sawtooth(x) code) to get the feel of the program:

/***********************************
* *** Serial sawtooth(x) code *** *
* *
* Fourier series representation *
* of the sawtooth(x) function. *
* *
* Author: Carlos R. Morrison *
* *
* Date: 2/12/2017 *
***********************************/
#include <math.h> // math library
#include <stdio.h>// Standard Input/Output library
int main(void)
{
int j;
unsigned long int i;
double sum0,sum1,A,B,C;
double D[100]={0},x[100]={0},d,dd=10.00,o,oo=10.0*(M_PI/180);
float Amp;
float g;
int m,n,p=36;
printf("n");
printf("###################...
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