1. School of Materials Science, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa 923-1292, Japan
2. Institute of Science and Engineering, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
3. Research Center for Advanced Computing Infrastructure, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa 923-1292, Japan
4. School of Information Science, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa 923-1292, Japan
5. International School for Advanced Studies (SISSA), Via Bonomea 265, 34136 Trieste, Italy
6. CNR-IOM Democritos National Simulation Center, Via Bonomea 265, 34136 Trieste, Italy
7. The Abdus Salam International Centre for Theoretical Physics (ICTP), Strada Costiera 11, 34151 Trieste, Italy