Default: write no dot files

python/dune/perftool/options.py

@@ -30,6 +30,8 @@ def get_form_compiler_arguments():
         help="maximal allowed l2 error squared of difference between numerical solution and interpolation of exact solution (NOTE: requires --exact-solution-expression)"
     )
     parser.add_argument("--interactive", action="store_true", help="whether the optimization process should be guided interactively (also useful for debugging)")
+    parser.add_argument("--print-transformations", action="store_true", help="print out dot files after ufl tree transformations")
+    parser.add_argument("--print-transformations-dir", type=str, help="place where to put dot files (can be omitted)")
 
     # These are the options that I deemed necessary in uflpdelab
 #     parser.add_argument("--param-class-file", type=str, help="The filename for the generated parameter class header")

python/dune/perftool/ufl/transformations/__init__.py

@@ -20,7 +20,7 @@ class UFLTransformationWrapper(object):
 
         # Write out a dot file
         from dune.perftool.options import get_option
-        if get_option("print_transformations", True):
+        if get_option("print_transformations", False):
             import os
             dir = get_option("print_transformations_dir", os.getcwd())