diff --git a/include/base.h b/include/base.h
index 45f0157..d6e24e6 100644
--- a/include/base.h
+++ b/include/base.h
@@ -135,6 +135,7 @@ struct model_t {
 struct worker_t
 {
     int id;
+    int thread_num;
     int status;
 };
 
diff --git a/src/scheduler.c b/src/scheduler.c
index 5f0b488..43ac7df 100644
--- a/src/scheduler.c
+++ b/src/scheduler.c
@@ -36,7 +36,11 @@ int sched_start (struct scheduler_t *self, struct parameters_t *parameters)
 {
     int n_threads = omp_get_max_threads();
     int n_arrows;
-    int iter_per_cycle;
+    int n_workers;
+    int workers_per_cycle;
+    int max_cycles;
+    int max_workers;
+    bool pleaseStop;
     struct worker_t **workers;
 
     self->id = sched_new_id();
@@ -48,33 +52,37 @@ int sched_start (struct scheduler_t *self, struct parameters_t *parameters)
     workers = calloc(n_threads, sizeof(struct worker_t*));
 
     //XXX
-    n_arrows = 1000;
-    iter_per_cycle = (n_arrows / n_threads) + 1;
+    n_arrows = 10000000000;
+    max_cycles = 1;
+    workers_per_cycle = (n_arrows / n_threads) + 1;
+    max_workers = workers_per_cycle * max_cycles;
 
-    printlog("Needed iteration per cycle (%d arrows to work on) : %d\n",
-             n_arrows,
-             iter_per_cycle);
+    printlog("Need %d workers per cycle (%d arrows to work on) : %d\n",
+             workers_per_cycle,
+             n_arrows);
 
-    printlog("Start of the simulation cycle\n");
+    pleaseStop = false;
+    n_workers = -1;
 
+    #pragma omp parallel
+    {
+        int thread_num;
+        thread_num = omp_get_thread_num();
 
-        for (int iter = 0; iter < iter_per_cycle; iter++) {
-            printlog("Start of the thread cycle (iter %d)\n", iter);
+        while (!pleaseStop) {
+            /* n_workers++; */
+            /* if (n_workers > max_workers) { */
+            /*     pleaseStop = true; */
+            /* } */
 
-            #pragma omp parallel
-            {
-                int thread_num;
-                thread_num = omp_get_thread_num();
-                workers[thread_num] = calloc(1, sizeof(struct worker_t));
-
-                workers[thread_num]->id = thread_num;
-                worker_start(workers[thread_num], self);
-
-                free(workers[thread_num]);
-            }
-
-            printlog("End of the thread cycle\n");
+            workers[thread_num] = calloc(1, sizeof(struct worker_t));
+            workers[thread_num]->id = n_workers;
+            worker_start(workers[thread_num], self);
+            free(workers[thread_num]);
         }
+    }
+
+    printlog("End of simulation\n");
 
     free(workers);
 
diff --git a/src/worker.c b/src/worker.c
index 0ab7186..77a1d7f 100644
--- a/src/worker.c
+++ b/src/worker.c
@@ -25,6 +25,8 @@
 
 /* -------------------------------------------------------------------------- */
 
+double truc;
+
 static int worker_new_id (void)
 {
     static int id = 0;
@@ -41,7 +43,9 @@ void worker_start(struct worker_t *self, struct scheduler_t *scheduler)
             self->id,
             random_time);
 
-    sleep(random_time);
+    double a = (double)self->id * 42 / ((double)self->id + 2);
+    truc = a;
+    //sleep(random_time);
 
     printlog("Fin du worker %d\n",
          self->id);