Add flag vor debug logging

performance/mpiP/share/mpip2POP.py

@@ -13,6 +13,9 @@ def parse_arguments():
     parser.add_argument('-s', '--scaling',
             choices=['strong','weak'], default='weak',
             help='Strong or weak scaling experiment')
+    parser.add_argument('-d', '--debug',
+            action='store_true',
+            help='Print debug messages for developers')
     parser.add_argument('mpip_report', nargs='+', type=argparse.FileType('r'))
     
     return parser.parse_args()
@@ -26,7 +29,7 @@ def get_Nranks(fn):
     try:
         nranks = int(result.stdout)
     except ValueError:
-        logging.info("Cannot infer nranks from '@ MPI Task Assignment'.")
+        logging.warning("Cannot infer nranks from '@ MPI Task Assignment'.")
         nranks = None
 
     return {"ranks": nranks}
@@ -225,6 +228,10 @@ def print_scaling(scaling, stream=sys.stdout):
 def main():
     args = parse_arguments()
 
+    if args.debug:
+        logging.getLogger().setLevel(logging.DEBUG)
+
+
     metrics = list()
 
     # compute parallel efficiencies for each input
@@ -242,5 +249,9 @@ def main():
     pretty_print(metrics)
     print_scaling(args.scaling)
 
+
 if __name__ == "__main__":
+    # set default logging level
+    logging.getLogger().setLevel(logging.WARNING)
+
     main()