fix default break_on job ids

src/core/sched_policy.c

@@ -34,9 +34,9 @@ long _starpu_task_break_on_sched = -1;
 
 void _starpu_sched_init(void)
 {
-	_starpu_task_break_on_push = starpu_get_env_number_default("STARPU_TASK_BREAK_ON_PUSH", 0);
-	_starpu_task_break_on_pop = starpu_get_env_number_default("STARPU_TASK_BREAK_ON_POP", 0);
-	_starpu_task_break_on_sched = starpu_get_env_number_default("STARPU_TASK_BREAK_ON_SCHED", 0);
+	_starpu_task_break_on_push = starpu_get_env_number_default("STARPU_TASK_BREAK_ON_PUSH", -1);
+	_starpu_task_break_on_pop = starpu_get_env_number_default("STARPU_TASK_BREAK_ON_POP", -1);
+	_starpu_task_break_on_sched = starpu_get_env_number_default("STARPU_TASK_BREAK_ON_SCHED", -1);
 }
 
 int starpu_get_prefetch_flag(void)