18BCE2182 LAB FAT-2-A-i, C (gcc)

18BCE2182 LAB FAT-2-A-i

//gcc 7.4.0

#include  <stdio.h>
#include  <stdlib.h>
#include  <omp.h>
#include  <time.h>

#define M 5
#define N 5

int main(int argc, char* argv[])
{
    int i, j;
    double t, start, end;
    double **A, **B, **C;
    
    A = malloc(M*sizeof(double *));
    B = malloc(M*sizeof(double *));
    C = malloc(M*sizeof(double *));
    
    for(i = 0; i < M; i++)
    {
        A[i]=malloc(N*sizeof(double *));
        B[i]=malloc(N*sizeof(double *));
        C[i]=malloc(N*sizeof(double *));    
    }
    
    for(i = 0; i < M; i++)
    {
        for(j = 0; j < N; j++)
        {
            A[i][j]=rand();
            B[i][j]=rand();
        }
    }
    //ADDITION IN STATIC SCHEDULING
    start = omp_get_wtime();
    #pragma omp parallel for schedule(static,16)
    for(i=0;i<M;i++)
    {
        for(j=0;j<N;j++)
        {
            C[i][j] = A[i][j]+B[i][j];
        }
    }
    end = omp_get_wtime();
    printf("\n\nExecution Time in Static is: %f\n\n",(end-start));
    //ADDITION IN DYNAMIC SCHEDULING
    start = omp_get_wtime();
    #pragma omp parallel for schedule(dynamic,16)
    for(i=0; i<M; i++)
    {
        for(j=0; j<N; j++)
        {
            C[i][j]=A[i][j]+B[i][j];
        }
    }
    end = omp_get_wtime();
    printf("\n\nExecution Time in Dynamic is: %f\n\n",(end-start));
    //ADDITION IN GUIDED SCHEDULING
    start = omp_get_wtime();
    #pragma omp parallel for schedule(guided,16)
    for(i=0; i<M; i++)
    {
        for(j=0; j<N; j++)
        {
            C[i][j]=A[i][j]+B[i][j];
        }
    }
    end = omp_get_wtime();
    printf("\n\nExecution Time in Guided is: %f\n\n",(end-start));
    return 0;
}


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