Migrating Desktop

1
Migrating Desktop
Graphical Framework for Interactive Grid
Applications

• Marcin Plóciennik
• marcinp_at_man.poznan.pl

Kick-off Meeting, Santander, 20-23. 06. 2006
2
Outline

• Product timeline
• General concepts of the Migrating Desktop
• Users perspective Migrating Desktop
  functionality overview
• Current technical status
• Developers perspective Plug-ins idea and
  architecture
• Plans for development

3
Product timeline

• Migrating Desktop timeline
• 2002 Start of development within EU
  CrossGrid Project and national Progress project
  (Proof of concept)
• 2005 Chosen as key component of the
  CrossGrid
• Nov 2005 Start of deployment in EU BalticGrid
  project
• Feb 2006 Selected for deployment in local Gridge
  project
• May 2006 Continuation of development in EU
  int.eu.grid project
• plans for deployment in EGEE2 ??, future
  developments and deployments

4
General concept

• General concept of Migrating Desktop
• Intuitive users working environment
• Product independent of a hardware platform and
  the operating system
• Advanced user-friendly Java application based on
  web services
• A flexible personalised environment available
  independently of the user location,
• Easily extendable framework

5
Supporting Grid Applications

• Preparation of input
• Intuitive file management
• Availability of tools for processing input files
• Job submission
• Easy definition of job parameters
• Simple specification of job files
• Submission of parallel jobs (MPICH, MPICH-G2,
  etc)
• Running batch and interactive job
• Running multiply (interdependent) jobs
• Job monitoring
• Easy tracking of submitted jobs
• Processing the output
• Possibility of presenting partial results
• Visualising output files
• Processing results

6
MD functionality overview

• Processing input files
• GridCommander intuitive file manager
• Easy access to grid resources
• Transparent support for various protocols
• Built-in file viewers and editors

7
MD functionality overview

• Job submission
• Selecting job type
• Specifying job definition
• Choosing requirements
• Deciding on ranking policy
• Picking input and/or output files
• Defining specific job parameters (plug-in!)
• Pre-processing job parameters (plug-in!)

8
MD functionality overview

• Job monitoring
• Tracking status of the job
• Checking job parameters
• Tracing job logs
• Examining detailed job status
• Possibility of interaction with user

9
MD functionality overview

• Processing job output
• Presenting partial results (plug-in!)
• Visualising job output files (plug-in!)
• Processing results (plug-in!)

10
Current technical status

• Migrating Desktop is based on
• Java 1.4.2 (? 1.5 in the way)
• Axis 1.1 (-gt 1.2.1 in the way)
• Tomcat 4, 5 or 5.5
• MySQL 4.1, or 5
• OpenLDAP
• OSGi R4 framework specification bundles (new!)
• Grid Middleware
• LCG 2.6/2.7 - Client part and most server parts
• LCG 2.3 JobSubmission part of server
• CrossBroker or EGEE brokers
• Support for VOMS (in latest development version)

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MD plug-ins

• Motivations
• Easy extension of the framework
• Standardization of integration with third party
  modules
• Integration points between Migrating Desktop and
  applications
• To give to integrated modules easy access to
  resources
• Migrating Desktop plug-ins
• Set of OSGi bundles with well-defined interface,
  described by XML file and loaded on demand from
  a network

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OSGi

• OSGi
• Open Services Gateway Initiative ? OSGi Alliance
• More than 35 companies from various areas (Sun,
  IBM, Ericsson, Nokia, Philips, BMW, etc.)
• Technology designed to provide a general-purpose,
  secure, and managed Java framework supporting the
  deployment of extensible and downloadable modules
  known as bundles that usual provide services - a
  collection of interfaces and their
  implementations.
• Standard with several implementations (Equinox,
  Knoplerfish, etc)
• Used as engine for open source Eclipse IDE

13
OSGi

• OSGi bundles
• A bundle is a JAR file that contains
• The resources necessary to provide some
  functionality.
• A manifest file describing the contents of the
  JAR file and providing information about the
  bundle.
• Bundles can be remotely installed, started,
  stopped, updated or uninstalled on the fly
• Bundles can share Java packages among an exporter
  bundle and an importer bundle in a well-defined
  way.
• OSGi services
• OSGi service is a java object instance,
  registered into an OSGi framework with a set of
  properties.
• Any java object can be registered as a service,
• Service implements a well-known interface
• Bundles can register services, search for them,
  or receive notifications when their registration
  state changes.

14
Plug-in architecture

• Plug-in
• independent module providing well-defined API
  that can be easy implemented and integrated with
  Migrating Desktop
• Container
• graphical component in which plug-in
  (implementing java panel) is nested.
• Toolkit
• interface defining set of auxiliary methods that
  can be used by plug-in for gaining access to
  local or remote resources, etc.

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Plug-in step-by-step

• Do I need a plug-in?
• What kind of plug-in shall I choose?
• Job input plug-in - defining job specific
  parameters
• Job process plug-in - pre-processing job input
  parameters
• Job viewer plug-in - visualisation of job results
• File viewer plug-in - viewing files of different
  formats
• Tool plug-in - integration of any type of java
  applet or application within Migrating Desktop
  framework

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Plans for development (1)

• Integrate interactive oriented middleware and
  services like visualization and prioritization
  that will be developed or extended by other tasks
  in this activity
• Evaluate and develop new features according to
  the requirements of the interactive applications
• Guarantee interoperability with the existing
  large eInfrastructures like EGEE, in terms of
  supporting batch jobs - sequential or MPI
• Prepare a mechanism for load balancing of the
  main interactive services. This feature would
  increase availability, scalability and
  reliability of the whole system

17
Plans for development (2)

• Change to Java 1.5 (in next steps maybe to 1.6)
• Change to Axis 1.2.1 (in next steps to 1.4)
• Move from LDAP to MySQL
• Support for Application - OSGi bundles
• Grid Middleware move to gLite 3.0 mixed with
  LCG
• Follow CrossBroker changes
• Add support for gLite WMS
• support LFC commands in order to combine
  functionality of File Catalog with Virtual
  Directory

18
MD Tutorial

• Migrating Desktop tutorial
• During this Kick-off meeting - 21 Jun, Monday
• Next tutorial in BalticGrid Summer School will be
  held at the Tartu University, Estonia, from 4
  July to 8 July, 2006

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Additional information

• Int.eu.grid
• http//www.interactive-grid.org
• PSNC
• http//www.man.poznan.pl
• Product homepage
• http//desktop.psnc.pl
• CVS Repository
• http//ras.man.poznan.pl/cgi-bin/viewcvs.cgi
• The OSGi Alliance
• http//www.osgi.org
• The World Wide Web Consortium
• http//www.w3c.org

20
Questions

• Thank you for your attention!
• Any questions?

if you need further information
marcinp_at_man.poznan.pl