examples/worker_collections/worker_tree_example.c: disable output, the example seems to be in an infinite loop and generate log files of several gigas

examples/worker_collections/worker_tree_example.c

@@ -64,7 +64,7 @@ int main()
 	for(i = 0; i < ncpus; i++)
 	{
 		int added = co->add(co, procs[i]);
-		FPRINTF(stderr, "added proc %d to the tree \n", added);
+//		FPRINTF(stderr, "added proc %d to the tree \n", added);
 	}
 
 	struct starpu_sched_ctx_iterator it;
@@ -75,19 +75,19 @@ int main()
 	while(co->has_next(co, &it))
 	{
 		pu = co->get_next(co, &it);
-		FPRINTF(stderr, "pu = %d out of %d workers \n", pu, co->nworkers);
+//		FPRINTF(stderr, "pu = %d out of %d workers \n", pu, co->nworkers);
 	}
 
 	for(i = 0; i < 6; i++)
 	{
 		co->remove(co, i);
-		FPRINTF(stderr, "remove %d out of %d workers\n", i, co->nworkers);
+//		FPRINTF(stderr, "remove %d out of %d workers\n", i, co->nworkers);
 	}
 
 	while(co->has_next(co, &it))
 	{
 		pu = co->get_next(co, &it);
-		FPRINTF(stderr, "pu = %d out of %d workers \n", pu, co->nworkers);
+//		FPRINTF(stderr, "pu = %d out of %d workers \n", pu, co->nworkers);
 	}
 
 	FPRINTF(stderr, "timing init = %lf \n", timing);