feat: multinode setup

create_hostname.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+export WORKER_IP=$1
+N_GPUS=8
+# create dir if doesn't exist
+sudo mkdir -p /job
+printf "localhost slots=$N_GPUS\n$WORKER_IP slots=$N_GPUS" | sudo tee /job/hostfile
+echo /job/hostfile