[1] Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia, Italy
[2] Data Science and Computing, Sandia National Laboratories, Livermore,CA, United States
[3] Center for Computing Research, Sandia National Laboratories, Albuquerque,NM, United States
[4] Departamento de Matematica, PUC-Rio, Rio de Janeiro, Brazil