Add new config variable openmp_minsize

theano/configdefaults.py

@@ -468,3 +468,11 @@ AddConfigVar('openmp',
              BoolParam(default_openmp),
              in_c_key=False,
          )
+
+AddConfigVar('openmp_minsize',
+             "If OpenMP is enable, this is the minimum size of vector "
+             "for which  the openmp parallel for is enable."
+             "Used in element wise ops",
+             IntParam(200000),
+             in_c_key=False,
+         )