Disable time counting when verbose=0.

Author: KangyuWeng

deepxde/utils/internal.py

@@ -19,12 +19,14 @@ def timing(f):
     @wraps(f)
     def wrapper(*args, **kwargs):
         verbose = kwargs.get('verbose', 1)
-        ts = timeit.default_timer()
-        result = f(*args, **kwargs)
-        te = timeit.default_timer()
         if verbose > 0 and config.rank == 0:
+            ts = timeit.default_timer()
+            result = f(*args, **kwargs)
+            te = timeit.default_timer()
             print("%r took %f s\n" % (f.__name__, te - ts))
             sys.stdout.flush()
+        else:
+            result = f(*args, **kwargs)
         return result
 
     return wrapper