Nguyen Quang Hung
Nguyen Quang Hung, Nguyen Thanh Son and Thoai Nam. SWG - A Clustered System for Vietnamese Semantic Web Application
Enabling technologies in high-speed communication, CPU-production, Unix/Linux operating systems
today have made clustered systems become one of mainstreams of parallel and distributed platforms
for high-performance, high throughput and high-availability computing. The Unix/Linux clustered
systems, were connected by thousand of similar workstations, are popular used to run large
applications. Such a kind of large applications is the kind of Vietnamese semantic web applications, in
which hundred thousands of entities in a knowledgebase are accessed and many coordinated complex
processes will be done. In this paper, a high performance computing (HPC) clustered system for
semantic web application, named SWG, are proposed to run Vietnamese semantic web applications.
The SWG system is used to (1) store and query Vietnamese knowledgebase by Sesame API, (2)
annotate Vietnamese web pages, and (3) access indexed documents by Lucence.
Nguyen Quang Hung. Toward A Commondity GridWare for Grid Application Development
Grid Computing promises a revolution both science and social. We can be changed thinking about
software and hardware by the Grid computing. However, developing a computing system and gridenabled
application based on case by case. Although, there are some proposed standards such as Grid
Architecture, OGSA for integrating distributed systems by grid services. This paper proposes a building
common virtual Application Programming Interface (API) layer that can apply for e-science or ebusiness
applications. Each virtual operation can be implemented by group of grid services that run on
grid nodes. To prove that the virtual API layer can be implemented, this paper also describes about a
grid environment called BK-GRID that is built on Globus Toolkit 3. The BK-GRID has eight grid-nodes.
Each grid node is a PC Pentium IV that has RAM memory is 256 Mbytes.
| Nguyen Quang Hung and Nguyen Thanh Son. User-Driven Grid Resource Discovery. The 10th Conf. on Science & Technology. University of Technology-Vietnam National University Hochiminh. Vietnam. October 24th, 2007
Grid computing is a new computing infrastructure and Globus Toolkit (GT) is a de-factor grid middleware to build grid. However, the Globus Toolkit’s Monitoring and Discovery System (MDS) do not support a resource discovery service well. So this paper presents a user-driven grid resource discovery service. Users can describe resource requirement specifications by extended Job Specification Description Language (JSDL), in which each resource is given a range value with a lower bound and an upper bound. Our discovery service is Web Service Resource Framework (WSRF), Java multi-thread grid service. In addition, the paper introduces the resource set-matching and ranking algorithm.
| Nguyen Quang Hung. State of art of Grid Portals and A Proposal for A Campus Grid
Grid Portal is a easy way for user can submit job into a Grid infrastructure and monitor submitted job status. However, there are not a generic portal that can taylor for all Grid infrastructure, for example the EDAGrid@HCMUT (www.edagrid.hcmut.edu.vn). Therefore, we have proposed a new portal for the EDAGrid@HCMUT.