Building a computing environment for nuclear material engineering using ITBL

Tsujita, Yuichi*; Arima, Tatsumi*; Idemitsu, Kazuya*; Suzuki, Yoshio; Kimura, Hideo

Joho Shori Gakkai Kenkyu Hokoku 2008-ARC-177, 2008-HPC-114, p.103 - 108, 2008/03

Recently, many research works for Pu-recycle have been done. We proposed a molecular dynamics method to have deep understandings in nuclear materials. We adopted a parallel computing technique by using an ITBL's computing environment in our simulation program because a huge amount of computations and time steps is required. We received a request from application users to incorporate a user friendly interface in a computing environment for specifying parameters in a simulation program and successive operations of parallel computation and visualization on a user's terminal. So, we have built a GUI computing environment to realize such the functionalities by using an ITBL's client API. In this paper, we report objectives of this development, implementation method of this application, and examples of the computing environment. Finally, we mention its future plan.

MPI-2 support in heterogeneous computing environment using an SCore cluster system

Tsujita, Yuichi*; Imamura, Toshiyuki*; Yamagishi, Nobuhiro*; Takemiya, Hiroshi*

Parallel and Distributed Processing and Applications (International Symposium, ISPA 2003), p.139 - 144, 2003/00

An MPI library for heterogeneous computing environment, Stampi, has been implemented on an SCore cluster system to enable dynamic process creation defined in MPI-2 and MPI communication among multiple clusters. Objective of this implementation is realization of heterogeneous computing environment with an SCore PC cluster and other machines. Through performance measurement, sufficient performance has been achieved and effectiveness of our flexible implementation has been confirmed.

Development of distributed parallel-I/O library: Stampi-I/O

Tsujita, Yuichi; Imamura, Toshiyuki; Takemiya, Hiroshi*; Yamagishi, Nobuhiro*

Keisan Kogaku Koenkai Rombunshu, 7(1), p.159 - 162, 2002/05

no abstracts in English

Distributed parallel-I/O library for heterogeneous computing environment

Tsujita, Yuichi; Imamura, Toshiyuki; Takemiya, Hiroshi*; Yamagishi, Nobuhiro*

Proceedings of 5th World Multiconference on Systemics, Cybernetics and Informatics (SCI 2001), p.402 - 407, 2001/07

An MPI-2 based distributed parallel-I/O library called Stampi-I/O has been developed using communication infrastructure of Stampi. Stampi is a communication library based on MPI and MPI-2. It has been developed for heterogeneous computing environment as infrastructure of metacomputing. As many applications in computational science handle huge amount of data which one parallel computer can not handle, distributed parallel-I/O libraries have been required for effective handling of such huge data on heterogeneous computing environment. Considering this situation, Stampi-I/O has been designed and developed. In this paper, motivations, architecture and preliminary results of performance measurement of Stampi-I/O are described.

Development of regional atmospheric dynamic and air pollution models for nuclear emergency response system WSPEEDI

Furuno, Akiko; Yamazawa, Hiromi; Lee, S.; Tsujita, Yuichi; Takemiya, Hiroshi*; Chino, Masamichi

Proceedings of 4th International Conference on Supercomputing in Nuclear Applications (SNA 2000) (CD-ROM), 7 Pages, 2000/09

no abstracts in English

TME (Task Mapping Editor): Tool for excuting distributed Parallel Computing; TME user's manual

Takemiya, Hiroshi*; Yamagishi, Nobuhiro*; Imamura, Toshiyuki; Ueno, Koichi*; Koide, Hiroshi; Tsujita, Yuichi; Hasegawa, Yukihiro*; Higuchi, Kenji; Matsuda, Katsuyuki*; Hirayama, Toshio

JAERI-Data/Code 2000-013, p.52 - 0, 2000/03

JAERI-Data-Code-2000-013.pdf:8.64MB

no abstracts in English

Stampi: Communication library on a duster of heterogeneous parallel computers

Imamura, Toshiyuki; Koide, Hiroshi; Tsujita, Yuichi; Takemiya, Hiroshi*

Heiretsu Shori Shimpojiumu (JSPP2000) Rombunshu, P. 168, 2000/00

no abstracts in English