Add missing part of Add observation hooks for OOC stochastic analysis

src/datawizard/copy_driver.c

@@ -156,6 +156,9 @@ static int copy_data_1_to_1_generic(starpu_data_handle_t handle,
 	STARPU_ASSERT(dst_replicate->allocated);
 
 #ifdef STARPU_SIMGRID
+	if (src_node == STARPU_MAIN_RAM || dst_node == STARPU_MAIN_RAM)
+		_starpu_simgrid_data_transfer(handle->ops->get_size(handle), src_node, dst_node);
+
 	return _starpu_simgrid_transfer(handle->ops->get_size(handle), src_node, dst_node, req);
 #else /* !SIMGRID */