Grid Infrastructure group (Charlotte): Barry Wilkinson Jeremy Villalobos Nikul Suthar Keyur Sheth Department of Computer Science UNC-Charlotte March 16, 2006 VisualGrid project meeting Portal Development

Goals of Infrastructure Group  To develop grid infrastructure  Provide technical direction to enable UNC-C, UNC-A, and EPA sites to interconnect as grid, working with grid infrastructure members at other sites.  Develop a user interface so that users can submit jobs to any site.  Customize interface to satisfy user requirements  …

Computing Resources at Charlotte  For initial development: – CS dept. 4-node dual 3.4 GHz Xeon server Called coit-grid01.uncc.edu – coit-grid04.uncc.edu Initially purchased from a grant for Fall 2005 grid computing course  Planned UNC-C resources to add: – University research 51-node dual Xeon cluster Chuck Price and Mike Mosley – Bioinformatics cluster 41-node and 8-node G5 clusters Larry Mays and John Merritt

Software  Globus 4.0.x – provides very basic grid components  OGCE2/Gridsphere portal – User interface  SimpleCA – certificate authority – Globus PKI Security – Complete VisualGrid will have multiple certificate authorities with cross certification  Local Job Schedulers – Sun Grid Engine and Condor

 X509 certificates are used to provide security in a grid system.  Each user needs a certificate issued by a “certificate authority” (CA).  Grid systems use a so-called user proxy certificates to allow resources to control resources on the user’s behalf. X509 Certificates

Users certified by a local CA UNC-C CA

CA’s with Mutual Trust UNC-C CA UNC-A CA GT4

Final VisualGrid infrastructure EPAUNC-AUNC-C CA

Multiple Grid Nodes With multiple grid nodes, users need:  Account on each system, and access control set accordingly.  A certificate acceptable by the local certificate authority (i.e. signed by a CA it trusts)

Getting an account New User Web-based VisualGrid form CA/System Administrator Create accounts, set access control, sign certificate, … Initial username and password Fill in form

Experimental configuration at UNC-C CA coit-grid01 coit-grid03 VisualGrid portal URL: grid01.uncc.edu:8080/gridsphere (Portals on other systems for experimentation.) coit-grid02 coit-grid04 Certificate authorities (SimpleCA) All with Globus 4.0 Sun Grid Engine scheduler on grid01-grid02 Condor on Grid 03-grid04

VisualGridPortal Based upon OGCE2/Gridsphere Provides:  User login  Proxy certificate generation  Job submission to any enrolled system  Secure file transfers  Informational tools

Portal login page (OGCE2/gridsphere portal)

Usual portlets:

Proxy Manager

Job Submission

File Transfer