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Added comments and added blank spaces #47

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10 changes: 9 additions & 1 deletion MatMul/matmul.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,8 @@
#define NCA 15 /* number of columns in matrix A */
#define NCB 7 /* number of columns in matrix B */



int main (int argc, char *argv[])
{
int tid, nthreads, i, j, k, chunk;
Expand All @@ -24,7 +26,9 @@ double a[NRA][NCA], /* matrix A to be multiplied */

chunk = 10; /* set loop iteration chunk size */

/*** Spawn a parallel region explicitly scoping all variables ***/


/*** Spawn a parallel region explicitly scoping all variables hope this works ***/
#pragma omp parallel shared(a,b,c,nthreads,chunk) private(tid,i,j,k)
{
tid = omp_get_thread_num();
Expand All @@ -47,6 +51,8 @@ chunk = 10; /* set loop iteration chunk size */
for (i=0; i<NRA; i++)
for (j=0; j<NCB; j++)
c[i][j]= 0;



/*** Do matrix multiply sharing iterations on outer loop ***/
/*** Display who does which iterations for demonstration purposes ***/
Expand All @@ -60,6 +66,8 @@ chunk = 10; /* set loop iteration chunk size */
c[i][j] += a[i][k] * b[k][j];
}
} /*** End of parallel region ***/



/*** Print results ***/
printf("******************************************************\n");
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