During installation process (unclebench) on local machine through python setup.py install it was noticed that the paths were not automatically configured. In order to circunvent the problem it was needed to source dev_env.sh to correctly configure the paths in dev mode.
Subsequently, the UBENCH_DIR_CREATE variable was exported with value 1. This will promote the usage of /tmp directory instead of scratch (which might not be present by default) for storing benchmark sources and executions.