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National Energy Research Scientific Computing Center (NERSC)
Visportal :
interface to grid enabled NERC resources
Cristina SiegeristNERSC Center Division, LBNLJune 24th, 2004
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Visportal Project
• The LBNL/NERSC VisPortal effort explores ways to deliver Grid-based advanced visualization and data analysis capabilities through a Web Portal interface.
• Using standard Globus Grid middleware and off the shelf web automation, the VisPortal hides the underlying complexity of resource selection and distributed application management.
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Visportal Project
Internal Architecture
Web Server
Tomcat
GPDKPortal Engine
(Servlets)
Application Logic Presentation(JSP)
Grid Service BeansSecurity Job
Submission
Information Services
Data Transfer
User Profiles
Grid Middleware Libraries(e.g. CoG)
globus
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Visportal Project
• VisPortal Services:• Motivation: simplify remote visualization,
offer point an click solutions for complex distributed applications
• File Management• One button Mpeg• … (User’s grid workflows?)
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Visportal Project
User’s perspective• Accounts in all the resources.
• Request a user certificate: http://www.doegrids.org/pages/cert-request.html
• Be in the grid-map files of the resources (automated through NIM).
• Create a proxy certificate and login. Delegate it to myproxy.nersc.gov
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Visportal Project
Login Page
• Myproxy: username and password of delegated credential
• Local: load from credential file (grid-proxy-init)
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Visportal Project
• Update user’sresourcesjob historyemail address
Profile
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Visportal Project
File Mgmt.
• Foreground transfers
• Background transfers
• Globus File Yanker(Shreyas Cholia)
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Demo
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