Run the Python version with python madflow_exec.py [options].
Run the Custom Operator version with python cumadflow_exec.py [options].
Custom Operator files are generated inside the gpu/ directory.
In order to generate a new Custom Operator, remove the prevous files with make clean_all.
Generate the matrix element file inside the prov/ directory (madflow --dry_run -o prov [options]), then generate the Custom Op with python custom_op_generator.py and compile it with make.
custom_op_generator.py points to wavefunctions.py inside the madflow package:
file_sources = ['/home/palazzo/madflow/python_package/madflow/wavefunctions_flow.py']