1 Grid Activity Summary » Grid Testbed » CFD Application » Virtualization » Information Grid » Grid CA

2 Grid Computing Testbed » Internal Level » NECTEC conducts tests of Globus Toolkit 4 for following issues:  Middleware  Pre-WS and WebServices components  CFD on Grid  Gfarm file system

3 Grid Computing Testbed » National Level » NECTEC cooperates with Thai National Grid Project (TNGP) to set Thailand Grid community standards.

4 Grid Computing Testbed » International Level » NECTEC has been an active member of PRAGMA resources and data working group. » Improve the interoperability of Grid middleware in the Asia Pacific region and make Grid enable to use for scientists.

5 » Computation requirements for CFD very high. » Nevertheless, some major challenges still exist in CFD research; for examples, turbulence research and very-large-scale CFD simulations. CFD on Grid » Grid provides dependable, consistent, pervasive and inexpensive access to high-end computational capability. » We investigate the feasibility and scalability of cross-platform simulation paradigms for a fine-grain application as CFD application on our Grid testbed.

6 CFD on Grid » Hardware » Grid64 Cluster (Itanium2 1.4GHz, 4 nodes)  Memory 4 GB  Network 100 Mbps » Grid3 Cluster (AMD Athlon 1.6GHz, 2 nodes)  Memory 1 GB  Network 100 Mbps » Software » Rock Cluster version 4.1 » GT (Pre-WS) » MPICH-G2 version » Intel Complier version 8 » PBS scheduler

7 CFD on Grid » Some Remarks » Grid infrastructure with independency of public IP. » Ability to do job migration automatically. » Dedicated Grid environment for fine-grain applications such as CFD application. » Improvement of algorithm for high latency Grid infrastructure.

8 Virtualization » Collaboration with KMITNB and ThaiGrid » Implementation of Virtualization Clusters based on Xen, ROCKS, and ThaiGrid Roll » Initial Study to implement “Virtual Cluster” based on ThaiGrid Roll » Study virtualization overhead and efficiency » Results: » Single VM performance close to native machine » Significant performance deficiency in case of parallel machines » More appropriate for High- Throughput Computing

9 Information Grid » A generic infrastructure that facilitates the integration of any information anywhere across heterogeneous data sources under grid environment.

10 Information Grid Architecture

11 Information Grid Characteristics » Provide standard mediated schemas. » Provides seamless information integration independent of local schemas and data sources. » Forms a virtualization of data sources to enable an integration of any information available in any data sources. » within a single domain and across domains » within a single or multiple data sources » Retrieve information available in distributed and heterogeneous data sources. » query reformulation » schema matching » standard result transformation

12 NECTEC GOC CA » A digital certificate issuer developed specifically to support authentication for Grid resources. » Developed under X.509 Public Key Infrastructure by Large Scale Simulation Research Laboratory (LSR), National Electronics and Computer Technology Center. » A issues certificates to users, hosts and services. » Current Status: » Production Level CA under APGrid PMA » ~ 10 Certificates issued (all for internal users)

13 NECTEC GOC CA » Collaboration