Changed default nodesize and memory to 48 and 192GB respectively

as these are the default values for gadi

payu/subcommands/run_cmd.py

@@ -29,8 +29,8 @@ def runcmd(model_type, config_path, init_run, n_runs, lab_path, reproduce):
 
     # TODO: Create drivers for servers
     platform = pbs_config.get('platform', {})
-    max_cpus_per_node = platform.get('nodesize', 16)
-    max_ram_per_node = platform.get('nodemem', 32)
+    max_cpus_per_node = platform.get('nodesize', 48)
+    max_ram_per_node = platform.get('nodemem', 192)
 
     # Adjust the CPUs for any model-specific settings
     # TODO: Incorporate this into the Model driver