- /* Initialize window buffer */
- MPI_Win_lock(MPI_LOCK_EXCLUSIVE, rank, 0, win);
+ /*
+ * TODO cheinrich: These assignments were originally after the MPI_Win_lock
+ * and before the MPI_Win_unlock call. However, with compile time optimizations on,
+ * this seems to cause issues with at least gcc. If valgrind or gcc is activated,
+ * everything works fine though.
+ *
+ * I don't know what causes these issues, but moving this here solves the problem for now.
+ */