PoC Induction 19-April VBrowser (VL-e Toolkit) The single point of access to the grid  Medical use case: functional MRI (fMRI)  VBrowser design  VBrowser features  VL-e Toolkit  Questions + Demo

PoC Induction 19-April Use Case: functional MRI (fMRI)

PoC Induction 19-April Use Case: fMRI requirements (short) File system requirements:  Grid FTP access (GFTP)  Secure FTP access (SFTP)  Storage Resource Broker (SRB)  Meta Data management Grid Services:  Reliable File Transfer  Job Submission/Monitoring Authentication/Accountmanagement:  Centralized account management  Simple authentication mechanism ?

PoC Induction 19-April Use case: Existing problems Tools Lots of different tools for different protocols  Graphical SRB client (inQ) only for windows  Web tools SRB interface clumsy  Command line tools (S-commands) not user friendly for end user (Medical Scientists). No integration with other (Grid) file systems like Grid-FTP or Secure FTP Need extensible File management tool  default SRB/Grid tools are not 'extensible‘ Need embedded content viewer also  Plugins/Mimetype viewers for application data

PoC Induction 19-April Design: Single GUI for 'The Grid'  Single access point to ‘The Grid’  Virtual metacomputer  All tools (seemingly) integrated into one ‘meta’ or ‘virtual’ computer  No need for extra software (Only java 1.5 needed)  Same look and feel for both windows and linux (but customizable) The Grid ? ? ? ? ?

PoC Induction 19-April Design: Architectural Overview

PoC Induction 19-April Result: Current status Grid Authentication  Grid proxy creation/deletion.  User account management. File browsing + management  Grid FTP  SRB  Secure FTP  Local file systems: Linux & Windows  Meta data attributes Grid Services:  Reliable File Transfer (RFT) Job Submission/Monitoring:  Not done (yet)

PoC Induction 19-April Result: VBrowser Overview Location Bar Grid Resources Grid FTPReliable File Transfer SRB (SARA) Local Resources

PoC Induction 19-April Result: VBrowser Authentication

PoC Induction 19-April VBrowser: (Meta) Data Attributes

PoC Induction 19-April VBrowser: Plugins & Embedded Viewers Text/HTML Viewer  Standard HTML 3.2 content. Text Editor  Can edit remote files. Picture Viewer (gif/jpgs) Experimental Dicom 3D Viewer  Requires VTK with java bindings  Plugin (Demo) created by Master Student Abdullah Özsoy Plugin Architecture allows customized viewers for other applications.

PoC Induction 19-April Viewers: Example HTML viewer

PoC Induction 19-April Viewers: Example Dicom data viewer

PoC Induction 19-April VL-e Toolkit VBrowser is part of VL-e Toolkit Current stable version is 1.6 VL-e Toolkit (VLET) is intended as toolkit for grid users. Other Tools:  Script interface to Virtual File System  VLTerm: a vt100 terminal emulator for ssh access. Downloadable from: o Click on the ‘Files’ section and select vlet-1.6.0

PoC Induction 19-April Questions ? (Demo)