N*Grid – Korean Grid Research Initiative Funded by Government (Ministry of Information and Communication) 5 Years from 2002 to million US$ Including middleware research, construction of Grid infrastructure and application researches Co-investigator from 20 universities and institutes KISTI supercomputing center is a primary contractor of N*Grid. Introduction to N*Grid KISTI Supercomputing Center

Grid infrastructure Supercomputer and Cluster Grid in Korea Grid test bed including world wide Grid test bed Middleware research Grid middleware Problem solving environment Grid Applications CFD Grid BioGrid Nano Grid Environmental Grid etc. Research Topics in N*Grid KISTI Supercomputing Center

Importance of Grid application research Grid applications are very important to show the feasibility of Grid technology. The final goal of middleware research is to use Grid for real world application. Therefore, the primary concern is to develop an innovative engineering methodology using Grid technology. Where is middleware? There are many available software for Grid infrastructure. We can continue application research by using those software. We can contribute to their research since they also want applications for their software. Grid Application Research in N*Grid KISTI Supercomputing Center

CFD application on Grid CFD is very good application for Grid since it requires huge amount of computing resource and relatively easy to exploit Grid infrastructure. Many Grid research includes CFD Grid in their project. Where is the starting point of CFD application in N*Grid? We start from the high throughput CFD Grid. It is very powerful for design optimization and parametric study. We need to develop necessary algorithms as well as implementations. The final goal is to provide Grid Service to engineers and scientists Grid Application Research in N*Grid (Cont.) KISTI Supercomputing Center

Construction of worldwide Grid test bed Connection of test bed with foreign institutes Software for Grid infrastructure We are willing to be beta user of middleware, problem solving environment and job scheduler. Preliminary Grid service will adopt those software Application research Cooperation in application research International Collaborations KISTI Supercomputing Center

Testbed CFD research in the framework of Cactus GAT library Grid Portal, Grid sphere Middleware Others Possible Collaboration Topics Between KISTI and Gridlab KISTI Supercomputing Center

Connecting N*Grid and Gridlab testbed. Sharing operation issues and technical knowledge Running applications with common interest KISTI testbed infrastructure 80 node linux cluster dedicated for Grid testbed (at KISTI) 24 node linux cluster dedicated for Grid testbed (at PNU) 256 node linux cluster partially used for Grid testbed (at UOS) 48 node linux cluster dedicated for CFD application (at KAIST) Supercomputers(NEC, IBM, Compaq etc.) Installed with Globus 2.0, MPICH-G2, PBS etc Testbed KISTI Supercomputing Center

Porting CFD code to Cactus KISTI wants to develop truly Grid application. Cactus already has versatile core. Porting requires strong collaboration of staffs in KISTI and AEI. Proposed timetable Phase 1 : Port simple CFD code to Cactus framework(2-3 monthes) AEI will help porting procedure. KISTI will port CFD code. Phase 2 : Extend CFD code for realistic problem(TBD) AEI will add required core module. KISTI will implement CFD code. Phase 3 : Extend to integrated CAE environment. If both parties have interest in further development, it will be very good change to deliver Grid technology to industry. CFD Research in the framework of Cactus KISTI Supercomputing Center

KISTI wants to develop truly Grid application. GAT can be an ideal tool for this. Possible action item KISTI staffs can use GAT for their Grid application development N*Grid participants can use GAT. Feedback will be provided to GAT developer. Can KISTI contribute to GAT development (as a developer)? Does Gridlab have a particular application field in mind? What is scope of GAT? How application can exploit full benefits of GAT? GAT library KISTI Supercomputing Center

Grid portal is very important topic in N*Grid project. KISTI is required to develop Grid portal itself for Grid infrastructure, as well as API or other form of library for easy portal building. Possible action item KISTI can use Grid Sphere for their portal development. Feedback will be provided to Grid Sphere developer. KISTI contribute to Grid Sphere development as a developer. KISTI develop a customized module of Grid Sphere for a particular use. Grid Portal KISTI Supercomputing Center

N*Grid project includes Grid middleware development called Moredream. Middleware KISTI Supercomputing Center