- MPI_Win_lock(MPI_LOCK_EXCLUSIVE, (rank+1)%nproc, 0, win);
- MPI_Compare_and_swap(&next, &i, &result, MPI_INT, (rank+1)%nproc, 0, win);
- MPI_Win_unlock((rank+1)%nproc, win);
+ MPI_Win_lock(MPI_LOCK_EXCLUSIVE, (rank + 1) % nproc, 0, win);
+ MPI_Compare_and_swap(&next, &i, &result, MPI_INT, (rank + 1) % nproc, 0, win);
+ MPI_Win_unlock((rank + 1) % nproc, win);