add tolerance (=0.05) when comparing test results

Small variances can occur when using different cudnn versions,
even when the environment and distiller version is the same.

tests/full_flow_tests.py

@@ -21,6 +21,7 @@ import re
 from collections import namedtuple
 import argparse
 import time
+import math
 
 DS_CIFAR = 'cifar10'
 DS_MNIST = 'mnist'
@@ -78,13 +79,13 @@ def success(string):
 # Checkers
 ###########
 
-def compare_values(name, expected, actual):
+def compare_values(name, expected, actual, rel_tol=5e-2):
     print('Comparing {0}: Expected = {1} ; Actual = {2}'.format(name, expected, actual))
-    if expected != actual:
+    if math.isclose(expected, actual, rel_tol=rel_tol):
+        return True
+    else:
         error('Mismatch on {0}'.format(name))
         return False
-    else:
-        return True
 
 
 def accuracy_checker(log, run_dir, expected_results):