Bug fixes in on-node and 2level-ftree

Change-Id: I478d26d50653736b64a1d1b2906b592a1fa24688

src/networks/model-net/fattree.c

@@ -817,7 +817,7 @@ static void fattree_read_config(const char * anno, fattree_param *p){
   p->l0_term_size = (p->tapering_ratio - 1)*(p->switch_radix[0]/p->tapering_ratio);
 
   if(p->num_levels == 2) {
-    p->num_switches[1] = p->num_switches[0]/p->tapering_ratio/2;
+    p->num_switches[1] = p->num_switches[0]/p->tapering_ratio;
     p->switch_radix[1] = p->switch_radix[0];
     p->l1_set_size =  p->num_switches[1];
     p->l1_term_size = num_terminals;

src/networks/model-net/model-net-lp.c

@@ -645,7 +645,7 @@ void handle_new_msg(
         exp_time += r->msg_size * codes_cn_delay;
         exp_time -= tw_now(lp);
         tw_stime delay = codes_local_latency(lp);
-        ns->node_copy_next_available_time[queue] = exp_time;
+        ns->node_copy_next_available_time[queue] = tw_now(lp) + exp_time;
         int remote_event_size = r->remote_event_size;
         int self_event_size = r->self_event_size;
         void *e_msg = (m+1);