Bugfix: It may happen that the temporary config file is accessed at once

by multiple SU2 runs, leading to io conflicts. Thus, the name of the
temporary file should not be hard-coded. This bugfix simply adds a
'_tmp' to the original config file name.

Author: ArneVoss

SU2_PY/SU2/io/config.py

@@ -829,7 +829,7 @@ def read_config(filename):
 def write_config(filename,param_dict):
     """ updates an existing config file """
 
-    temp_filename = "temp.cfg"
+    temp_filename = filename+"_tmp"
     shutil.copy(filename,temp_filename)
     output_file = open(filename,"w")