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algorithm.c
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Created
Fri, Aug 30, 14:11
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1 KB
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text/x-c
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Sun, Sep 1, 14:11 (1 d, 23 h)
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blob
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20327387
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R10834 Project_multiproc
algorithm.c
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/*
============================================================================
Filename : algorithm.c
Author : Your names go here
SCIPER : Your SCIPER numbers
============================================================================
*/
#include <math.h>
#define INPUT(I,J) input[(I)*length+(J)]
#define OUTPUT(I,J) output[(I)*length+(J)]
void simulate(double *input, double *output, int threads, int length, int iterations)
{
double *temp;
omp_set_num_threads(threads);
for(int n=0; n < iterations; n++)
{
#pragma omp parallel for collapse(2)
for(int i=1; i<length-1; i++)
{
for(int j=1; j<length-1; j++)
{
if ( ((i == length/2-1) || (i== length/2)) && ((j == length/2-1) || (j == length/2)) )
continue;
OUTPUT(i,j) = (INPUT(i-1,j-1) + INPUT(i-1,j) + INPUT(i-1,j+1) + INPUT(i,j-1) + INPUT(i,j) + INPUT(i,j+1) + INPUT(i+1,j-1) + INPUT(i+1,j) + INPUT(i+1,j+1))/9;
}
}
temp = input;
input = output;
output = temp;
}
}
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