Merge branch 'fix_scheduler_steal_policy' into 'master'

Fix scheduler steal policy

Set `scheduler` steal policy from `engine` policy. 

Solves #347.

See merge request !399

src/engine.c

@@ -4505,7 +4505,7 @@ void engine_init(struct engine *e, struct space *s,
 
   /* Init the scheduler with enough tasks for the initial sorting tasks. */
   const int nr_tasks = 2 * s->tot_cells + 2 * e->nr_threads;
-  scheduler_init(&e->sched, e->s, nr_tasks, nr_queues, scheduler_flag_steal,
+  scheduler_init(&e->sched, e->s, nr_tasks, nr_queues, (policy & scheduler_flag_steal),
                  e->nodeID, &e->threadpool);
 
   /* Allocate and init the threads. */

src/scheduler.h

@@ -52,7 +52,7 @@
 
 /* Flags . */
 #define scheduler_flag_none 0
-#define scheduler_flag_steal 1
+#define scheduler_flag_steal (1 << 1)
 
 /* Data of a scheduler. */
 struct scheduler {