diff --git a/example.py b/example.py
index 41df229..b790a4b 100644
--- a/example.py
+++ b/example.py
@@ -20,10 +20,10 @@
 import time
 
 # cluster specification
-parameter_servers = ["pc-01:2222"]
-workers = [	"pc-02:2222", 
-			"pc-03:2222",
-			"pc-04:2222"]
+parameter_servers = ["localhost:2222"]
+workers = [	"localhost:2223", "localhost:2224","localhost:2225"]
+
+
 cluster = tf.train.ClusterSpec({"ps":parameter_servers, "worker":workers})
 
 # input flags
diff --git a/run_code.sh b/run_code.sh
new file mode 100644
index 0000000..84dae4a
--- /dev/null
+++ b/run_code.sh
@@ -0,0 +1,8 @@
+export CUDA_VISIBLE_DEVICES=-1
+python example.py --job_name "ps" --task_index 0 &
+export CUDA_VISIBLE_DEVICES=0
+python example.py --job_name "worker" --task_index 0 &
+export CUDA_VISIBLE_DEVICES=1
+python example.py --job_name "worker" --task_index 1 &
+export CUDA_VISIBLE_DEVICES=2
+python example.py --job_name "worker" --task_index 2