Multiplicacion de Matriz en Paralelo C

#include <stdlib.h>
#include <process.h>
#include <stdio.h>
#include <windows.h>


void myFunction(void *)
{
         //int myNumber = *(int*)number;
          //int myNumber2 = *(int*)number;
      int A[3][3]={{1,2,3},{3,4,5},{1,1,1}};
       int B[3][3]={{1,2,3},{3,4,5},{1,1,1}};
       int C[3][3];
       int i ,j,k;
       for (i = 0; i < 3; i++) {
        for (j = 0; j < 3; j++) {
       C[i][j] = 0;
        for (k = 0; k < 3; k++) {
          C[i][j] += A[i][k] * B[k][j];
         }
         }
         }

          for(i = 0; i < 3; i++)
          {
               printf("\n");
               for(j = 0; j < 3; j++)
               {
                     printf(" %d ",C[i][j]);
                }
           }

    // printf("\n fin de un proceso \n");
        _endthread();

}


int main(int argc, char *argv[])
{
     _beginthread(myFunction,0,NULL);
      system("PAUSE");
    return 0;
}