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1 Short Course on Grid Computing Jornadas Chilenas de Computación 2010 INFONOR-CHILE 2010 November 15th - 19th, 2010 Antofagasta, Chile Dr. Barry Wilkinson.

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Presentation on theme: "1 Short Course on Grid Computing Jornadas Chilenas de Computación 2010 INFONOR-CHILE 2010 November 15th - 19th, 2010 Antofagasta, Chile Dr. Barry Wilkinson."— Presentation transcript:

1 1 Short Course on Grid Computing Jornadas Chilenas de Computación 2010 INFONOR-CHILE 2010 November 15th - 19th, 2010 Antofagasta, Chile Dr. Barry Wilkinson University of North Carolina Charlotte Oct 13, 2010 © Barry Wilkinson Session 3 Using GridNexus to run Grid jobs

2 GridNexus A graphical workflow editor that allows the user to create/edit/run workflows Developed by University of North Carolina at Wilmington. Based on Ptolemy II workflow GUI A Java application and requires Java 1.6+ Freely available for download www.gridnexus.org 2

3 3 Once installed, get opening page: New WorkflowText Editor

4 Getting a proxy Obtained as previous from myProxy server. GUI interface available with myProxy software called MyProxyLogon 4 Portal password Select write trust roots

5 MYProxyLogon is supposed to copy the CA certificates to.globus/certificates directory on the local host (trust roots checkbox). We sometimes have difficulties with that so you may need to do this manually. We provide copies of the CA certificates. One CA is installed on UNC-C and one CA is installed on UNC-W so that either can sign certificates in the class 5

6 First workflow (myIntegral computation on coit-grid01.uncc.edu) 6

7 Cont source module 7 Double Click on it to configure

8 GridExec component ( client for executing Globus commands) 8

9 Prog (program) module (evaluates each input in turn) 9

10 Jxpl sink module (evaluate input and displays result as a string) 10

11 Sample output 11

12 12 Final workflow Workflow of complete computation across two servers (Grid nodes), one at UNC-C and one at UNC-W Order links drawn important Job description files (on computer running GridNexus)

13 13 Questions


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