Rename autotune benchmark template files

python/dune/codegen/sumfact/autotune.py

@@ -327,11 +327,11 @@ def generate_standalone_kernel_code(kernel, signature, filename, transformations
         for trafo in transformations:
             codegen_transformations += '// {}\n'.format(trafo)
 
-    template = 'kernel_benchmark_template1.txt'
+    template = 'kernel_benchmark_template1.cc.in'
     use_datasets = True
 
     # Old benchmark template
-    # template = 'kernel_benchmark_template0.txt'
+    # template = 'kernel_benchmark_template0.cc.in'
     # use_datasets = False
 
     template_filename = pkg_resources.resource_filename(__name__, template)