diff --git a/codes/net/fattree.h b/codes/net/fattree.h
index 281ebe433064456563d505ffe8b57ef3b07c4cd6..13d030cf924e430bba71130c019257ff595dd6d7 100644
--- a/codes/net/fattree.h
+++ b/codes/net/fattree.h
@@ -5,7 +5,7 @@
 
 typedef struct fattree_message fattree_message;
 
-/* this message is used for both dragonfly compute nodes and routers */
+/* this message is used for both fattree compute nodes and routers */
 struct fattree_message
 {
   /* magic number */
diff --git a/src/network-workloads/conf/modelnet-synthetic-fattree.conf b/src/network-workloads/conf/modelnet-synthetic-fattree.conf
index 3a6874d3744c77e4e528b419359e2ce6caa3ea89..b3956005a1f5bc1511aec9e19b0c268418e434d2 100644
--- a/src/network-workloads/conf/modelnet-synthetic-fattree.conf
+++ b/src/network-workloads/conf/modelnet-synthetic-fattree.conf
@@ -2,10 +2,10 @@ LPGROUPS
 {
    MODELNET_GRP
    {
-      repetitions="36";
-      server="2";
-      modelnet_fattree="2";
-      fattree_switch="1";
+      repetitions="2";
+      server="4";
+      modelnet_fattree="4";
+      fattree_switch="3";
    }
 }
 PARAMS
@@ -18,15 +18,15 @@ PARAMS
    modelnet_order=( "fattree" );
    # scheduler options
    modelnet_scheduler="fcfs";
-#   chunk_size="32";
+   chunk_size="32";
    # modelnet_scheduler="round-robin";
-#   num_vcs="1";
+   num_vcs="1";
    vc_size="16384";
    cn_vc_size="16384";
    link_bandwidth="5";
    cn_bandwidth="5";
    message_size="512";
-#   routing="minimal";
+   routing="minimal";
    router_delay="50";
    soft_delay="1000";
 }
diff --git a/src/network-workloads/model-net-synthetic-fattree.c b/src/network-workloads/model-net-synthetic-fattree.c
index 7b7f6920edae2e5e6cb6600fe397ab49372e3760..b7564c9b84d10ba665da56ad87574e6276a14f50 100644
--- a/src/network-workloads/model-net-synthetic-fattree.c
+++ b/src/network-workloads/model-net-synthetic-fattree.c
@@ -6,7 +6,7 @@
 
 /*
 * The test program generates some synthetic traffic patterns for the model-net network models.
-* currently it only support the dragonfly network model uniform random and nearest neighbor traffic patterns.
+* currently it only support the fat tree network model uniform random and nearest neighbor traffic patterns.
 */
 
 #include "codes/model-net.h"
@@ -177,10 +177,10 @@ static void handle_kickoff_event(
     memcpy(m_remote, m_local, sizeof(svr_msg));
     m_remote->svr_event_type = REMOTE;
 
-//    assert(net_id == DRAGONFLY); /* only supported for dragonfly model right now. */
+//    assert(net_id == FATTREE); /* only supported for fat tree model right now. */
 
     ns->start_ts = tw_now(lp);
-    
+    printf("Kicking off events\n");
    codes_mapping_get_lp_info(lp->gid, group_name, &group_index, lp_type_name, &lp_type_index, anno, &rep_id, &offset);
    /* in case of uniform random traffic, send to a random destination. */
    if(traffic == UNIFORM)
@@ -316,6 +316,7 @@ int main(
     int argc,
     char **argv)
 {
+printf("program start\n");
     int nprocs;
     int rank;
     int num_nets;
@@ -325,7 +326,9 @@ int main(
     lp_io_handle handle;
 
     tw_opt_add(app_opt);
+printf("Pre timewarp init\n");
     tw_init(&argc, &argv);
+printf("Post timewarp init\n");
     offset = 1;
 
     if(argc < 2)
@@ -339,20 +342,22 @@ int main(
     MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
 
     configuration_load(argv[2], MPI_COMM_WORLD, &config);
-
+printf("loaded configuration\n");
     model_net_register();
+printf("Registered model-net\n");
     svr_add_lp_type();
-
+printf("Added LP types\n");
     codes_mapping_setup();
+printf("Setup Codes mapping\n");
 
     net_ids = model_net_configure(&num_nets);
     assert(num_nets==1);
     net_id = *net_ids;
     free(net_ids);
 
-    if(net_id != DRAGONFLY)
+    if(net_id != FATTREE)
     {
-	printf("\n The test works with dragonfly model configuration only! ");
+	printf("\n The test works with fat tree model configuration only! ");
         MPI_Finalize();
         return 0;
     }