1. National Energy Research Scientific Computing Center (NERSC) Visportal : interface to grid enabled NERC resources Cristina Siegerist NERSC Center Division, LBNL June 24 th, 2004

2. 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.

3. Visportal Project Internal Architecture Web Server Tomcat GPDK Portal Engine (Servlets) Application Logic Presentation (JSP) Grid Service Beans Security Job Submission Information Services Data Transfer User Profiles Grid Middleware Libraries (e.g. CoG) globus

4. 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?)

5. Visportal Project User’s perspective Accounts in all the resources. Request a user certificate: http://www.doegrids.org/pages/cert-request.html 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

6. Visportal Project Login Page Myproxy: username and password of delegated credential Local: load from credential file (grid- proxy-init)

7. Visportal Project Update user’s resources job history email address Profile

8. Visportal Project File Mgmt. Foreground transfers Background transfers Globus File Yanker(Shreyas Cholia)

9. Demo

10. The END