Development of an international matrix-solver prediction system on a French-Japanese international grid computing environment

Suzuki, Yoshio; Kushida, Noriyuki; Tatekawa, Takayuki; Teshima, Naoya; Caniou, Y.*; Guivarch, R.*; Dayde, M.*; Ramet, P.*

Proceedings of Joint International Conference of 7th Supercomputing in Nuclear Application and 3rd Monte Carlo (SNA + MC 2010) (USB Flash Drive), 6 Pages, 2010/10

The "Research and Development of International Matrix-Solver Prediction System (REDIMPS)" project, which is founded by the Strategic Japanese-French Cooperative Program on "Information and Communications Technology including Computer Science" with CNRS and JST, aims at improving the "Test for Large System of Equations (TLSE)" sparse linear algebra expert system by establishing an international grid computing environment between Japan and France. Here, we have established the interoperable environment between French and Japanese grid middleware (DIET and AEGIS), and have confirmed that TLSE can rely on this French and Japanese interoperable environment for researchers to select a matrix-solver suitable to their each application program. By this study, we proposed to the French and Japanese researchers the environment in which they can obtain useful information for the improvement of their application program.

Development of maintenance technology on post irradiation examination facility; An Invention of automatic control exhaust valve update method under operated condition of alpha tight hot cell

Mizukoshi, Yasutaka; Kushida, Naoya

JAEA-Technology 2010-011, 16 Pages, 2010/06

JAEA-Technology-2010-011.pdf:1.21MB

The inside of Metallography cell, which is an alpha-tight hot cell of post irradiation examination facility, is contaminated by radioactive matters and nuclear fuel materials at high levels, because many fuel pins that were irradiated in nuclear reactor were examined in this hot cell over many years. Therefore, for reasons of safety of workers and of the requirements of the act, the devices for negative pressure controlling (e.g. automatic control exhaust valves) must be updated under the condition of maintained negative pressure in hot cell or under the condition of completion of decontamination of radioactive matters in hot cell. Update method of automatic control exhaust valves of Metallography cell at the design-time of this hot cell was that the automatic control exhaust valves were updated under the condition of no ventilation operation after completion of decontamination. However, this method harmed the experiments of fuel pins because the working period of this method needed over one year. Therefore, a safe and efficient update method of deteriorated automatic control exhaust valves that have been perennially used for control of negative pressure in Metallography cell is invented, and this method was carried out.

Interoperation between Atomic Energy Grid Infrastructure (AEGIS) and other grids

Suzuki, Yoshio; Kushida, Noriyuki; Teshima, Naoya; Nakajima, Kohei; Nishida, Akemi; Nakajima, Norihiro

High Performance Computing on Vector Systems 2008, p.65 - 77, 2009/00

Center for computational science and e-systems, Japan Atomic Energy Agency (CCSE/JAEA) has been carrying out R&Ds of grid computing technology since FY1995 aiming at establishing an infrastructure for the computational science research. One of them is R&D of IT-Based Laboratory (ITBL) infrastructure. The ITBL project is a national project placed as one of the e-Japan Priority Policy Program to realize the e-Japan Strategy. By succeeding the technology of ITBL infrastructure, CCSE is carrying out R&D of Atomic Energy Grid Infrastructure (AEGIS) to construct an intelligent infrastructure for the atomic energy research. CCSE has been carrying out international cooperation researches in various fields to advance computer science and to expand AEGIS grid computing environment. To achieve this, we have developed the system to construct interoperable environments between AEGIS and other grid middleware.

Implementing interoperability between the AEGIS and DIET GridRPC middleware to build an international sparse linear algebra expert system

Caniou, Y.*; Kushida, Noriyuki; Teshima, Naoya

Proceedings of 2nd International Conference on Advanced Engineering Computing and Applications in Sciences (ADVCOMP 2008) (CD-ROM), p.205 - 210, 2008/09

In this paper, we present the design and architecture of an interoperable solution in order to transparently and securely access French and Japanese computing resources. The aim is to propose an International Sparse Linear Algebra Expert System available through a Web portal where auser can request some analysis on the resolution of a problem involving different kind of matrices, solvers and heuristics, and using different architectures. Hence, numerous validation studies can be performed. The solution mostly relies on the integration of a "protocol" interoperability between the French and Japanese Grid middleware DIET and AEGIS.

Toward an international sparse linear algebra expert system by interconnecting the ITBL Computational Grid with the Grid-TLSE platform

Kushida, Noriyuki; Suzuki, Yoshio; Teshima, Naoya; Nakajima, Norihiro; Caniou, Y.*; Dayd, M.*; Ramet, P.*

Proceedings of 8th International Meeting on High Performance Computing for Computational Science (VECPAR '08) (CD-ROM), p.424 - 429, 2008/06

In the present paper, the methodology of interoperability between ITBL and Grid-TLSE is described. Grid-TLSE is an expert website to provides user assistance in choosing the right solver for its problems and appropriate values for the control parameters of the selected solve. The time to solution of linear equation solver strongly depends on the type of problem, the selected algorithm, its implementation and the target computer architecture. Grid-TLSE uses the Diet middle ware to distribute computing tasks over the Grid. Therefore, extending the variety of computer architecture by Grid middle ware interoperability between Diet and ITBL has a beneficial impact to the expert system. To show the feasibility of the methodology, job transfering program as a special service of Diet was developed.

Establishment of the grid interoperability for the sparse linear solver expert system

Kushida, Noriyuki; Suzuki, Yoshio; Teshima, Naoya; Nakajima, Norihiro

no journal, , 

In this presentation, GRID interoperable system for international solver expert system was described. Linear solver expert system provides data which can be used to select the appropriate linear equation solver for user problem. Therefore, extending the variation of linear equation solver and computer architecture provides more appropriate linear equation solver than before. In order to extend the variation of solver and computer, we employed GRID interoperable system, and ITBL, which was the GRID of JAEA, and DIET, which was the GRID of expert system, were connected.

AEGIS-DIET interconnection using message translation

Kushida, Noriyuki; Teshima, Naoya; Takemiya, Hiroshi; Nakajima, Norihiro; Hirayama, Toshio

no journal, , 

In the present paper, the methodology of interoperability between ITBL and Grid-TLSE is described. Grid-TLSE is an expert website to provides user assistance in choosing the right solver for its problems and appropriate values for the control parameters of the selected solve. The time to solution of linear equation solver strongly depends on the type of problem, the selected algorithm, its implementation and the target computer architecture. Grid-TLSE uses the Diet middleware to distribute computing tasks over the Grid. Therefore, extending the variety of computer architecture by Grid middleware interoperability between Diet and ITBL has a beneficial impact to the expert system. To show the feasibility of the methodology, job transfering program as a special service of Diet was developed.

Establishment of maintenance method of exhaust valve on -tight hot cell under ventilating condition

Mizukoshi, Yasutaka; Kushida, Naoya

no journal, , 

no abstracts in English