The international exascale software project roadmap J Dongarra, P Beckman, T Moore, P Aerts, G Aloisio, JC Andre, D Barkai, ... The international journal of high performance computing applications 25 (1 …, 2011 | 797 | 2011 |

Profile-based optimization of power performance by using dynamic voltage scaling on a pc cluster Y Hotta, M Sato, H Kimura, S Matsuoka, T Boku, D Takahashi Proceedings 20th IEEE International Parallel & Distributed Processing …, 2006 | 145 | 2006 |

A massively-parallel electronic-structure calculations based on real-space density functional theory JI Iwata, D Takahashi, A Oshiyama, T Boku, K Shiraishi, S Okada, ... Journal of Computational Physics 229 (6), 2339-2363, 2010 | 123 | 2010 |

Emprical study on reducing energy of parallel programs using slack reclamation by dvfs in a power-scalable high performance cluster H Kimura, M Sato, Y Hotta, T Boku, D Takahashi 2006 IEEE international conference on cluster computing, 1-10, 2006 | 115 | 2006 |

Large-scale elastic-plastic indentation simulations via nonequilibrium molecular dynamics WG Hoover, AJ De Groot, CG Hoover, IF Stowers, T Kawai, BL Holian, ... Physical Review A 42 (10), 5844, 1990 | 113 | 1990 |

OmniRPC: a Grid RPC system for parallel programming in cluster and Grid environment M Sato, T Boku, D Takahashi CCGrid 2003. 3rd IEEE/ACM International Symposium on Cluster Computing and …, 2003 | 94 | 2003 |

First-principles calculations of electron states of a silicon nanowire with 100,000 atoms on the K computer Y Hasegawa, JI Iwata, M Tsuji, D Takahashi, A Oshiyama, K Minami, ... Proceedings of 2011 International Conference for High Performance Computing …, 2011 | 83 | 2011 |

CP-PACS: A massively parallel processor for large scale scientific calculations T Boku, K Itakura, H Nakamura, K Nakazawa Proceedings of the 11th international conference on Supercomputing, 108-115, 1997 | 50 | 1997 |

Interconnection network for tightly coupled accelerators architecture T Hanawa, Y Kodama, T Boku, M Sato 2013 IEEE 21st Annual Symposium on High-Performance Interconnects, 79-82, 2013 | 47 | 2013 |

XcalableACC: Extension of XcalableMP PGAS language using OpenACC for accelerator clusters M Nakao, H Murai, T Shimosaka, A Tabuchi, T Hanawa, Y Kodama, ... 2014 First Workshop on Accelerator Programming using Directives, 27-36, 2014 | 46 | 2014 |

Productivity and performance of global-view programming with XcalableMP PGAS language M Nakao, J Lee, T Boku, M Sato 2012 12th IEEE/ACM International Symposium on Cluster, Cloud and Grid …, 2012 | 45 | 2012 |

Massively-parallel electron dynamics calculations in real-time and real-space: Toward applications to nanostructures of more than ten-nanometers in size M Noda, K Ishimura, K Nobusada, K Yabana, T Boku Journal of Computational Physics 265, 145-155, 2014 | 40 | 2014 |

Parallel implementation of Strassen's matrix multiplication algorithm for heterogeneous clusters Y Ohtaki, D Takahashi, T Boku, M Sato 18th International Parallel and Distributed Processing Symposium, 2004 …, 2004 | 38 | 2004 |

SALMON: Scalable Ab-initio Light–Matter simulator for Optics and Nanoscience M Noda, SA Sato, Y Hirokawa, M Uemoto, T Takeuchi, S Yamada, ... Computer Physics Communications 235, 356-365, 2019 | 37 | 2019 |

Performance evaluation of ultra-large-scale first-principles electronic structure calculation code on the K computer Y Hasegawa, JI Iwata, M Tsuji, D Takahashi, A Oshiyama, K Minami, ... The International journal of high performance computing applications 28 (3 …, 2014 | 36 | 2014 |

A scalar architecture for pseudo vector processing based on slide-windowed registers H Nakamura, T Boku, H Wada, H Imori, I Nakata, Y Inagami, K Nakazawa, ... Proceedings of the 7th international conference on Supercomputing, 298-307, 1993 | 36 | 1993 |

Tightly coupled accelerators architecture for minimizing communication latency among accelerators T Hanawa, Y Kodama, T Boku, M Sato 2013 IEEE International Symposium on Parallel & Distributed Processing …, 2013 | 35 | 2013 |

Megaproto: 1 tflops/10kw rack is feasible even with only commodity technology H Nakashima, H Nakamura, M Sato, T Boku, S Matsuoka, D Takahashi, ... SC'05: Proceedings of the 2005 ACM/IEEE Conference on Supercomputing, 28-28, 2005 | 34 | 2005 |

Performance of lattice QCD programs on CP-PACS S Aoki, R Burkhalter, K Kanaya, T Yoshié, T Boku, H Nakamura, ... Parallel Computing 25 (10-11), 1243-1255, 1999 | 32 | 1999 |

OpenCL-ready high speed FPGA network for reconfigurable high performance computing R Kobayashi, Y Oobata, N Fujita, Y Yamaguchi, T Boku Proceedings of the International Conference on High Performance Computing in …, 2018 | 31 | 2018 |