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Yamada, Susumu; Machida, Masahiko; Imamura, Toshiyuki*
Oyo Suri, 15(2), p.153 - 158, 2005/06
no abstracts in English
Yamada, Susumu; Imamura, Toshiyuki*; Machida, Masahiko; Arakawa, Chuichi*
Nihon Keisan Kogakkai Rombunshu, 7, p.243 - 252, 2005/05
no abstracts in English
Takase, Kazuyuki
Nihon Kikai Gakkai Ryutai Kogaku Bumon Nyuzu Reta Nagare (Internet), 6 Pages, 2005/04
no abstracts in English
Yamada, Susumu; Imamura, Toshiyuki*; Machida, Masahiko
Proceedings of 23rd IASTED International Multi-Conference on Parallel and Distributed Computing and Networks (PDCN 2005), p.638 - 643, 2005/02
no abstracts in English
Takase, Kazuyuki; Yoshida, Hiroyuki; Ose, Yasuo*
Hai Pafomansu Komputingu To Keisan Kagaku Shimpojium (HPCS 2005) Rombunshu, P. 16, 2005/01
no abstracts in English
Ose, Yasuo*; Takase, Kazuyuki; Yoshida, Hiroyuki; Kano, Takuma; Kureta, Masatoshi; Akimoto, Hajime
Dai-41-Kai Nihon Dennetsu Shimpojiumu Koen Rombunshu, 2 Pages, 2004/05
no abstracts in English
Yamada, Susumu; Machida, Masahiko; Imamura, Toshiyuki*
Joho Shori Gakkai Rombunshi; Komputeingu Shisutemu (Internet), 45(SIG6(ACS6)), p.161 - 170, 2004/05
no abstracts in English
Yamada, Susumu; Machida, Masahiko; Imamura, Toshiyuki*
Kyoto Daigaku Suri Kaiseki Kenkyujo Kokyuroku 1362, p.142 - 150, 2004/04
no abstracts in English
Yamada, Susumu; Machida, Masahiko; Imamura, Toshiyuki*
Hai Pafomansu Komputingu To Keisan Kagaku Shimpojium (HPCS 2004) Rombunshu, p.103 - 110, 2004/01
no abstracts in English
Takase, Kazuyuki; Yoshida, Hiroyuki; Ose, Yasuo*; Tamai, Hidesada; Kano, Takuma; Akimoto, Hajime
Nihon Konsoryu Gakkai Nenkai Koenkai 2003 Koen Rombunshu, p.33 - 34, 2003/00
no abstracts in English
Takase, Kazuyuki; Yoshida, Hiroyuki; Ose, Yasuo*; Tamai, Hidesada; Akimoto, Hajime
Proceedings of International Conference on Supercomputing in Nuclear Applications (SNA 2003) (CD-ROM), 15 Pages, 2003/00
no abstracts in English
Kobayashi, Minoru*
JAERI-Data/Code 2002-016, 40 Pages, 2002/09
JAERI-Data-Code-2002-016.pdf:3.78MB
no abstracts in English
Mochizuki, Yuji*; Matsumura, Masayuki*; Yokura, Tetsuichi*; Hirahara, Yukio*; Imamura, Toshiyuki
Journal of Nuclear Science and Technology, 39(2), p.195 - 199, 2002/02
Times Cited Count：5 Percentile：34.58(Nuclear Science & Technology)no abstracts in English
Uehara, Hitoshi; Tamura, Masanori; Yokokawa, Mitsuo
Hai Pafomansu Komputingu To Keisan Kagaku Shimpojium (HPCS2002) Rombunshu, p.73 - 80, 2002/01
The Earth Simulator is an ultra high-speed supercomputer which is developed now for global environment change simulations. For achieving high performance computing on large scale distributed memory parallel computer such as the Earth Simulator, an optimization of communication processings in user applications is required, and the optimization needs an evaluation for performances of communication methods. In the Earth Simulator, Message Passing Interface (MPI) is supported as the communication method. We evaluated performances of the MPI-1/MPI-2 functions on the Earth Simulator in detail using MBL which we developed.
Itakura, Kenichi; Yokokawa, Mitsuo; Shimizu, Futoshi; Kimizuka, Hajime*; Kaburaki, Hideo
Joho Shori Gakkai Kenkyu Hokoku 2001-HPC-88, p.67 - 72, 2001/10
he Earth Simulator which is under development has 640 processor nodes and its peak performance is 40 Tflop/s. In this study, we have evaluated performance of solid molecular dynamics simulation on an SMP node of the Earth Simulator. In molecular dynamics simulation, each particle is influenced by all particles within a cut-off region and the representation of these pairs of particles is made by a matrix. Two matrix representations, compressed row form and jagged diagonal form, are considered for vectorization. The jagged diagonal form is better than the compressed row form in performance on a vector processor for the force calculation of every pairs, because the vector length of the former is longer than that of the latter. However, computational cost for converting the normal matrix form to the jagged diagonal form is quite expensive and the total performance in using the jagged diagonal form is low. Speedup by parallelization with the compressed row form is 2.4 to 2.7 with 8 vector processors.
Yokokawa, Mitsuo
Nihon Oyo Suri Gakkai Rombunshi, 11(1), p.79 - 81, 2001/03
no abstracts in English
Yokokawa, Mitsuo; Tani, Keiji
RIST News, (30), p.24 - 30, 2000/10
no abstracts in English
Yokokawa, Mitsuo; *; Hagiwara, Takashi*; Isobe, Yoko*; *; *; Tani, Keiji; *
Joho Shori Gakkai Kenkyu Hokoku, 99(21), p.55 - 60, 1999/00
no abstracts in English
