Deletes analysis result of partition, e.g. so a repeat
        optimisation of the same partition can be done with a
        different model

def wipe_partition(self, partition):
        """ Deletes analysis result of partition, e.g. so a repeat
        optimisation of the same partition can be done with a
        different model """
        for grp in partition.get_membership():
            grpid = self.scorer.get_id(grp)
            cache_dir = self.scorer.cache_dir
            prog = self.scorer.task_interface.name
            filename = os.path.join(cache_dir, '{}.{}.json'.format(grpid, prog))
            if os.path.exists(filename):
                os.unlink(filename)