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Grid Portals

A web-based application server with software for grid communication, providing a customized view of resources for scientists. Access grid services, manage files, workflows, and jobs easily. Develop and customize portals for specific applications with flexible and extendable components.

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Grid Portals

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  1. Grid Portals Grid Computing, B. Wilkinson, 2004

  2. Grid Portal • “A web-based application server enhanced with the necessary software to communicate to grid services and resources” • “Provides application scientist a customized view of software and hardware resources from a web browser” [1] Grid Computing, B. Wilkinson, 2004

  3. From a paper “GridSphere: A Portal Framework For Building Collaborations” by J. Novotny, M. Russell, and O. Wehrens Grid Computing, B. Wilkinson, 2004

  4. Grid Portals • Uses a Web browser interface • Can use from anywhere. • Hides details of Grid middleware • Good!! • Provides • Access to grid information • Access to grid services • Automated execution of applications/jobs • Workflow management • File management • Single sign-on to grid resources Grid Computing, B. Wilkinson, 2004

  5. Access to Grid Services • Security Services • management of certificates • access to virtual organization (people) • Remote File Management • access to files and directories • moving files • Remote job management • job submission • workflow management Grid Computing, B. Wilkinson, 2004

  6. Access to Information • Portals also provide access to information -- anything related to tasks at hand, including communication with virtual organization. • In fact some portals started simply as informational portals in the same vein as web portals such as yahoo. Grid Computing, B. Wilkinson, 2004

  7. Grid Portal History Several portal “toolkits” developed since mid-1990’s. Examples • The Grid Portal Development kit (GPDK) (not now supported) • NPACI Grid Portal Toolkit (Gridport) (National Partnership for Advanced Computational Infrastructure) Grid Computing, B. Wilkinson, 2004

  8. Application-Based Portals • Portals often specialized to a particular application. • for example, grid portal for high energy physics. • Portal toolkits give ability to taylor portal to application or user. Grid Computing, B. Wilkinson, 2004

  9. NPACI Hotpage Grid portal (based upon GridPort) MPI program Starting job Grid Computing, B. Wilkinson, 2004 From a paper”Building GridPortals: The NPACI Grid Portal Toolkit” by M. P. Thomas and J. R. Boisseau.

  10. Adapted from slides “The NCSA Alliance Portal and the Open Grid Computing Environment Project” by D. Gannon, G. Fox, B. Plale, M. Pierce, M. Thomas, C. Severance, G. von Lazewski, and J. Alameda. Grid Computing, B. Wilkinson, 2004

  11. DOE Fusion Grid Portal Grid Computing, B. Wilkinson, 2004 Adapted from slides “Reuseable Grid Portral Components” by M Thomas.

  12. Linked Environments for Atmospheric Discovery (LEAD) Grid Computing, B. Wilkinson, 2004 Adapted from slides “Reuseable Grid Portral Components” by M Thomas.

  13. NEES – www.neesgrid.org • George E. Brown, Jr. Network for Earthquake Engineering Simulation • Large Installations of physical equipment for earthquake experiments and simulations • Part of the award is to make equipment available for remote collaborators • Focus is on collaboration and experimental equipment sharing in addition to access to computation From slides “The NCSA Alliance Portal and the Open Grid Computing Environment Project” by D. Gannon, G. Fox, B. Plale, M. Pierce, M. Thomas, C. Severance, G. von Lazewski, and J. Alameda. Grid Computing, B. Wilkinson, 2004

  14. Network for Earthquake Engineering and Simulation (NEESGrid) Grid Computing, B. Wilkinson, 2004 Adapted from slides “Reuseable Grid Portral Components” by M Thomas.

  15. Would anyone like to develop an portal for teaching grid computing for me (using a toolkit)? Portal development tools critical for further adoption of grid computing. Paid ($$$) ? Grid Computing, B. Wilkinson, 2004

  16. Portal Implementation • Should be flexible, meet grid industry standards, be able to be extended using parts developed by others. • General approach currently is to use “software components” called portlets. Grid Computing, B. Wilkinson, 2004

  17. Software Component • Object defined by precise public interface and includes a set of standard behaviors. • Software components contained in a framework. • Components follow a set of rules to interoperate. • Installation of components should be easily done. Grid Computing, B. Wilkinson, 2004

  18. Portals with Portlets • Portal server consists of portlets • Each portlet provides certain functionality and a window within the portal. • Each portlet can be associated with a particular grid service • User can have any number of portlets as he/she wishes (will be associated with user’s persistent context). Grid Computing, B. Wilkinson, 2004

  19. Grid Portlets • Portlets provided for • Management of user proxy certificates • Remote file Management via Grid FTP • News/Message systems • for collaborations • Grid Event/Logging service • Access to OGSA services • Access to directory services • Specialized Application Factory access • Distributed applications • Workflow • Access to Metadata Index tools • User searchable index Grid Computing, B. Wilkinson, 2004

  20. Event and logging Services The User Application Factory Services Messaging and group collaboration Portal Server Directory & index Services MyProxy Server Metadata Directory Service(s) Portal Server Adapted from slides “The NCSA Alliance Portal and the Open Grid Computing Environment Project” by D. Gannon, G. Fox, B. Plale, M. Pierce, M. Thomas, C. Severance, G. von Lazewski, and J. Alameda. Grid Computing, B. Wilkinson, 2004

  21. Event and logging Services The User Application Factory Services Portal Server Messaging and group collaboration Portlet 1 Portlet 2 Portlet 3 Portlet 4 Portlet 5 Portlet 6 Directory & index Services MyProxy Server Metadata Directory Service(s) Portlet Approach to Grid Services Adapted from slides “The NCSA Alliance Portal and the Open Grid Computing Environment Project” by D. Gannon, G. Fox, B. Plale, M. Pierce, M. Thomas, C. Severance, G. von Lazewski, and J. Alameda. Grid Computing, B. Wilkinson, 2004

  22. The current Visible pane Proxy Manager Portlet A Pane and portlet Adapted from slides “The NCSA Alliance Portal and the Open Grid Computing Environment Project” by D. Gannon, G. Fox, B. Plale, M. Pierce, M. Thomas, C. Severance, G. von Lazewski, and J. Alameda. Grid Computing, B. Wilkinson, 2004

  23. Advantages of Portlet Approach • Easy to add new grid services and reconfigure user’s view (context) • Different software developers can provide portals to be plugged into portal • Many parties developing portal and portlet tools -- Jetspeed (Apache), Websphere (IBM), GridSphere, … • Portal/portlet standard called JSR 168 emerging (portlet Java Specification Request open standard). Grid Computing, B. Wilkinson, 2004

  24. More Information • JSR 168 Portlet specification http://jcp.org/aboutJava/communityprocess/review/jsr168 • GridLab, The GridSphere Portal http://www.gridsphere.org/gridsphere/gridsphere • Network for Earthquake Engineering Simulation Grid (NEESGrid) http://www.neesgrid.org Grid Computing, B. Wilkinson, 2004

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