Grappa: Grid access portal for physics applications Status

1
Grappa Grid access portal for physics
applications Status Future WorkGriPhyN
AHMApril 2002

• Shava Smallen
• Extreme! Computing Laboratory Department of
  Physics
• Indiana University

2
Motivation for Grappa

• Lots of GriPhyN/Grid services
• Higher-level user interface
• Common practice to use a Grid portal

• Goal provide a Grid portal interface by which
  physicists can launch and manage jobs and data

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XCAT Science Portal
(previously known as Active Notebook Project )

• Grid portal framework for building personal
  science portals
• Active notebook (execution management)
• HTML pages to describe the features of the
  notebook and how to use it
• HTML forms which can be used to launch
  parameterizable scripts (transformation)
• Parameters stored in a sub-notebook (derivation)

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XCAT Science Portal ATLAS

• Previous work with ATLSim
• Athena Notebook Prototype/Demo
• ATLAS Software Week (March)
• Allow user to submit sequence of Athena job
  options files to US-ATLAS testbed resources
• File staging, remote job option file editing,
  basic monitoring, ad-hoc viz
• Packaged with Pacman and posted to
  http//iuatlas.physics.indiana.edu/grappa
• (not fully available this week due to server
  upgrade)

5

• XCAT Science Portal GVDS?

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Next Version

• Virtual Data Browser Portal (VDB)
• Currently working on design
• Provide functionality analogous to that of a web
  browser
• Publish virtual data create transformations and
  derivations
• Search virtual data interface to VDC API
• User Profile bookmarks, credential mgmt,
  resource mgmt, etc.

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Implementation of VDB

• Build from scratch apply XCAT Science Portal
  concepts
• XCAT Science Portal is demo-ware
• Build upon a web portal framework
• Currently investigating Jetspeed (apache.org)
• Multi-user support
• User customization of appearance
• Components of XCAT Science Portal will become
  obsolete
• based on GVDS 1.0

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Summary of Efforts

• Demo version
• Short-term
• US-ATLAS testbed
• Provide functionality to US-ATLAS Grid Analysis
  Toolkit
• (Dan Engh - IU Physics)

• Virtual Data Browser
• Long-term
• Interface to GVDS
• Doc on plans soon
• (Shava Smallen - IU CS)

• Monitoring
• What information is needed to monitor an Athena
  job how to visualize it in portal
• (Lisa Ensman IU Physics)

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More Information

• Extreme! Computing Lab
• Shava Smallen, Dennis Gannon, Randy Bramley
• IU Physics
• Rob Gardner, Dan Engh, Lisa Ensman, Fred Luehring
• Grappa web page
• Email ssmallen_at_cs.indiana.edu

http//iuatlas.physics.indiana.edu/grappa