remove lefttover TODOs

4-GPU/HandsOn/.master/C/task6/poisson2d.solution.c

@@ -133,8 +133,7 @@ int main(int argc, char **argv) {
     MPI_Barrier(MPI_COMM_WORLD);
     if (rank == 0) printf("Parallel execution.\n");
     
-    //TODO: measuring the MPI time with asynchronous compute is not well defined. Remove it here and belows.
-    double mpi_time = 0.0;
+    // double mpi_time = 0.0;
     double start = MPI_Wtime();
     int iter = 0;
     real error = 1.0;
@@ -159,8 +158,6 @@ int main(int argc, char **argv) {
     while (error > tol && iter < iter_max) {
         error = 0.0;
 
-//TODO: Check which parts in the while loop can be executed asynchronously by adding the async keyword
-//You might also need to use wait
 #pragma acc parallel loop present(A, Anew, rhs) async
         for (int iy = iy_start; iy < iy_end; iy++) {
             for (int ix = ix_start; ix < ix_end; ix++) {

4-GPU/HandsOn/Solution/C/task6/poisson2d.solution.c

@@ -133,8 +133,7 @@ int main(int argc, char **argv) {
     MPI_Barrier(MPI_COMM_WORLD);
     if (rank == 0) printf("Parallel execution.\n");
     
-    //TODO: measuring the MPI time with asynchronous compute is not well defined. Remove it here and belows.
-    double mpi_time = 0.0;
+    // double mpi_time = 0.0;
     double start = MPI_Wtime();
     int iter = 0;
     real error = 1.0;
@@ -159,8 +158,6 @@ int main(int argc, char **argv) {
     while (error > tol && iter < iter_max) {
         error = 0.0;
 
-//TODO: Check which parts in the while loop can be executed asynchronously by adding the async keyword
-//You might also need to use wait
 #pragma acc parallel loop present(A, Anew, rhs) async
         for (int iy = iy_start; iy < iy_end; iy++) {
             for (int ix = ix_start; ix < ix_end; ix++) {