add timer

Author: Jonathanlyj

src/drivers/ncmpio/ncmpio_close.c

@@ -226,14 +226,20 @@ ncmpio_close(void *ncdp)
     }
 
     /* free up space occupied by the header metadata */
+    /* free up space occupied by the header metadata */
+    double free_time_start = MPI_Wtime();
+    // free_counter = 0;
+    cls_counter = 0;
     int rank;
     MPI_Comm_rank(ncp->comm, &rank);
-    cls_counter = 0;
     ncmpio_free_NC(ncp);
-    // if (rank == 0){
-    //     printf("cls_counter: %d\n", cls_counter);   
-    // }
+    double free_time = MPI_Wtime() - free_time_start;
 
+    if (rank == 0){
+        printf("ncmpio_free_NC time: %f\n", free_time);
+        printf("before ncmpio_free_NC time: %f\n", free_time_start - close_start);
+        // printf("ncmpio_free_NC free() count: %d\n", free_counter);
+    }
     return status;
 }