Offload memory into file per clusternumber and samplesize

Created by: vcaballero-salle

Currently, all experiments until max clusternumber and simplesize are saved into memory; then, results are written in a file. This causes memory overflows for large number of experiments/iterations. We should create a file at lest per clusternumber and samplisize. Maybe by a batch of iterations too. To do that:

• Generate all settings first.
• Loop throgh the list of settings and run the experiment.
• Per each run experiment, write a file.
• Make sure that memory can be released after writting the file, both for settings and for experiment results.