bug fixing

hw3/skeleton/wave.cpp

@@ -329,12 +329,11 @@ void WaveEquation::run(double t_end) {
     int i1_max = N;
     int i2_max = N;*/
 
-    int tid = omp_get_thread_num();
+    
     int ti0, ti1, ti2;
     thread_coordinates(tid, threads_per_dim, ti0, ti1, ti2);
 
-    int nloc = N / threads_per_dim;
-
+   
     int i0_min = ti0 * nloc;
     int i1_min = ti1 * nloc;
     int i2_min = ti2 * nloc;
@@ -383,7 +382,7 @@ void WaveEquation::run(double t_end) {
     // ********************************************************************************
     // Question 3: You will need to add the following barrier (why?)
     // ********************************************************************************
-    //#pragma omp barrier
+    #pragma omp barrier
 
     std::swap(u_new, u);
     std::swap(u_new, u_old);