1 Bioinformatics Research Unit, Institute for Biomedical Technologies, National Research Council of Italy, Segrate (MI), Italy.
2 Bioinformatics and High Performance Computing Research Group, Computer Science Department, Universidad Católica San Antonio de Murcia (UCAM), 30107 Murcia, Spain.
3 Department of Computer Science and Engineering, Center for Research Computing, University of Notre Dame, Indiana, USA.
4 Advanced Computing Systems and High Performance Computing Group, Institute for Applied Mathematics and Information Technologies, National Research Council of Italy, Genoa, Italy.