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Grid Activity Summary
»Grid Testbed» CFD Application» Virtualization
» Information Grid
»Grid CA
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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
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Grid Computing Testbed
»National Level» NECTEC cooperates with Thai National Grid
Project (TNGP) to set Thailand Grid community standards.
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Grid Computing Testbed
» International Level» NECTEC has been an active
member of PRAGMA resources and data working group.
» Improve the interoperabilityof Grid middleware in the Asia Pacific region and make Grid enable to use for scientists.
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» 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 applicationas CFD application on our Grid testbed.
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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 4.0.2 (Pre-WS)» MPICH-G2 version 1.3.7» Intel Complier version 8» PBS scheduler
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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.
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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
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Information Grid
» A generic infrastructure that facilitates the integration of any information anywhere across heterogeneous data sources under grid environment.
RDBMS
RDBMS
File Server
XMLDBFile Server
FTP Server
RDBMS
Web Server
Information Broker
Information Service
Application
MDL
MDL
MDL
Marker Directory Service
Information ServiceInformation
Service
Information Service
Information Service
Information Service
Information Service
Information Service
MDL
MDL
MDL
MDL
MDL
MDL Information Broker
Information Broker
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Information Grid Architecture
Applications
Standard
Integration
Discovery
Transformation
Data Source
RDBMS
RDBMS
File Server
XMLDBFile Server
FTP Server
RDBMS
Web Server
Information Broker
Information Service
Application
MDL
MDL
MDL
Marker Directory Service
Information ServiceInformation
Service
Information Service
Information Service
Information Service
Information Service
Information Service
MDL
MDL
MDL
MDL
MDL
MDL Information Broker
Information Broker
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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
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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)
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NECTEC GOC CA»Collaboration