MatrixAddition.c

#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>



int M,K;
int A[100][100],B[100][100],C[100][100];

       

struct v
{
    int i; /* row */
    int j; /* column */
};

void *runner(void *param); /* the thread */

int main(int argc, char *argv[])
{

    printf("enter the numbers of rows: ");
    scanf("%d",&M);
    printf("enter the numbers of columns: ");
    scanf("%d",&K); 
    int i,j;
    printf("enter the first matrix:\n");    
    for (i = 0; i < M; i++){
        for (j = 0; j < K; j++){
		scanf("%d",&A[i][j]); 

}}
    printf("enter the second matrix:\n");
    for (i = 0; i < M; i++){
        for (j = 0; j < K; j++){
		scanf("%d",&B[i][j]); 

}}     


    for (i = 0; i < M; i++)
    {
        for (j = 0; j < K; j++)
        {
            //Assign a row and column for each thread
            struct v *data = (struct v *)malloc(sizeof(struct v));
            data->i = i;
            data->j = j;
            /* Now create the thread passing it data as a parameter */
            pthread_t tid;       //Thread ID
            pthread_attr_t attr; //Set of thread attributes
            //Get the default attributes
            pthread_attr_init(&attr);
            //Create the thread
            pthread_create(&tid, &attr, runner, data);
            //Make sure the parent waits for all thread to complete
            pthread_join(tid, NULL);
        }
    }

    //Print out the resulting matrix
    printf("The Addition of two matrix is:\n");
    for (i = 0; i < M; i++)
    {
        for (j = 0; j < K; j++)
        {
            printf("%d ", C[i][j]);
        }
        printf("\n");
    }
}

//The thread will begin control in this function
void *runner(void *param)
{
    struct v *data = param; // the structure that holds our data


    C[data->i][data->j]= A[data->i][data->j] + B[data->i][data->j];
    
    

    //Exit the thread
    pthread_exit(0);
}