Atsuko Takefusa

Learn More
While there have been several proposals of high performance global computing systems, scheduling schemes for the systems have not been well investigated. The reason is difficulties of evaluation by large-scale benchmarks with reproducible results. Our Bricks performance evaluation system would allow analysis and comparison of various scheduling schemes on a(More)
Striking progress of network technology is enabling highperformance global computing, in which computational and data resources in a wide area network (WAN) are transparently employed to solve large-scale problems. Several high-performance global computing systems, such as Ninf, NetSolve, RCS, Legion and Globus have already been proposed. Each of these(More)
1 Grid Technology Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-18-13 Soto-Kanda, Chiyoda-Ku, Tokyo 101-0021, Japan +81-3-5298-4724 (Telephone), +81-3-5298-4502 (Fax), atsuko.takefusa@aist.go.jp 2 KDDI R&D Laboratories Inc. 3 NTT Network Innovation Laboratories 4 National Institute of Information and(More)
Rapid increase in speed and availability of network of supercomputers is making high-performance global computing possible, including our <i>Ninf</i> system. However, critical issues regarding system performance characteristics in global computing have been little investigated, especially under multi-client, multi-site WAN settings. In order to investigate(More)
The Computational Grid is a promising platform for the deployment of various high-performance computing applications. A number of projects have addressed the idea of software as a service on the network. These systems usually implement client-server architectures with many servers running on distributed Grid resources and have commonly been referred to as(More)
International cooperation on Software-Defined Networking (SDN), crossing the boundaries of Europe, the Americas and Asia, builds a strong foundation for pursuing experimental research through advanced programmable network testbeds. The EU-Japan jointly-funded project FELIX (FEderated Testbeds for Large-scale Infrastructure eXperiments) considers the(More)
This paper describes innovative architectures and techniques for reserving and coordinating highly distributed resources, a capability required for many large scale applications. In the fall of 2006, Japan's G-lambda research team and the United States' EnLIGHTened Computing research team used these innovations to achieve the world's first inter-domain(More)
Co-allocation of performance-guaranteed computing and network resources provided by several administrative domains is one of the key issues for constructing a QoS-guaranteed Grid. We propose an advance reservation-based co-allocation algorithm for both computing and network resources on a QoSguaranteed Grid, modeled as an integer programming (IP) problem.(More)