COMP3019 Coursework

1
COMP3019 Coursework

• Dr Stephen Crouch
• s.crouch_at_omii.ac.uk
• 19/03/09

2
Objectives

• To equip students to drive a lightweight grid
  implementation to solve a problem that can
  benefit from using grid technology.
• To develop an understanding of the basic
  mechanisms used to solve such problems.
• To develop a general architectural and
  operational understanding of typical
  production-level grid software.
• To develop the programming skills required to
  drive typical services on a production-level grid.

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Overview

• Part 1 m-grid
• A lightweight grid to illustrate grid concepts in
  use
• Develop a program, submit it to m-grid with input
  data, collect results
• Part 2 Workflows in OMII
• Install an OMII Client (Linux/Windows)
• Develop a simple workflow using Grimoires and
  GridSAM APIs

4
Need Help?

• OMII guides
• Install guide
• User guide
• http//www.omii.ac.uk/ - Resources -gt
  Documentation (menu bar)
• Myself s.crouch_at_omii.ac.uk
• Coursework help lecture after Easter
• Coursework resources
• http//www.ecs.soton.ac.uk/stc/COMP3019/index.htm
  l

5

• Part 1 m-grid

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Some Pointers

• Look at the other examples in m-grid
• Applets can access files in their jar
• Can include any file in jar using jar command
• Applet can access it from within jar e.g.
• InputStream in getClass().getResourceAsStream
  (ltfilename_in_jargt)
• But must access it as a stream as above

7

• Part 2 Workflows in OMII

8
Coursework

• Objective to develop a simple workflow
• Install an OMII Client (Linux/Windows)
• Use Grimoires and GridSAM APIs to
• Find GridSAM services using Grimoires
• Select a service
• Coordinate the submission and monitoring of a set
  of jobs on one GridSAM service
• For coursework materials see http//www.ecs.soton
  .ac.uk/stc/COMP3019/index.html

9
Pre-Requisites

• Pre-requisites
• SuSE 9.0, RedHat or Windows XP/Vista
• May work on other Linuxs but no exhaustive
  testing
• Tested on undergrad Linux boxes (best option!)
• Requires Java 5
• JDK 1.5.0_01 (not a JRE!) 1.5.0_12
• Not tested with earlier JDKs
• Not compatible with Java 6 (yet)
• Undergraduate labs recommended VPNs can cause
  problems

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Preparation

• Download OMII-UK Development Kit Client 3.4.2
  from coursework materials page
• Install JDK 1.5.0_01-1.5.0_12 if required
• http//java.sun.com/products/archive/j2se/5.0_12/i
  ndex.html
• Linux undergrad machines have 1.5.0_01
• Set JAVA_HOME environment variable. e.g.
• Bash export JAVA_HOME/usr/local/jdk1.5.0_01
• Win Con. Panel gt System gt Advanced gt Env.
  Variables

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Install

• Linux install recommended
• Unpack omii-client-3.4.2 zip/tar.gz file
• Go to omii-client-3.4.2/client directory
• ./OMIIclientInstall.sh Linux
• OMIIclientInstall.bat Windows
• When it asks if you wish to install Commissioned
  Software components, enter no
• Go to omii-client-3.4.2/managed_programme
  directory
• ./OMIImanagedProgrammeInstall.sh Linux
• ./OMIImanagedProgrammeInstall.bat Windows
• Ensure you enter installation directory of where
  you installed client
• Select none to deselect all components first
• Select numbers for GridSAM 2.0.2 and Grimoires
  2.0.0 only

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Servers

• Check coursework materials page to get locations
  of servers
• https//blade4.omii.ac.uk18443
• https//blade4.omii.ac.uk28443
• Dont use standard demo server for coursework
  (https//demo-3-4-0.omii.ac.uk18443)
• Will only run sleep.jsdl!

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CLI Example Submit to GridSAM Server

• Ensure Java is on your path
• Windows/Linux
• Type gt cd ltomii_client_homegt/gridsam/bin
• Submit to GridSAM server (one line)
• gt gridsam-submit s https//blade4.omii.ac.uk184
  43/gridsam/services/gridsam?wsdl -j
  ../data/examples/sleep.jsdl
• On Linux begin above command with ./
• Unique job ID is returned
• i.e. UID is urngridsamltcharactersgt

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CLI Example Monitoring the Job

• Monitor job until completion
• gt gridsam-status -s
• https//blade4.omii.ac.uk18443/gridsam/services
  /gridsam?wsdl -j ltunique_job_idgt
• On Linux begin above command with ./
• ltunique_job_idgt is entire urngridsamltcharactersgt
  string
• Job progress indicated by current state
• Pending, Staging-in, Staged-in, Active, Executed,
  Staging-out, Staged-out, Done

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CLI Example Query Grimoires Server

• At a prompt, type
• gt cd ltomii_client_homegt/grimoires/bin
• Access GShell (one line)
• gt ./run.sh https//blade4.omii.ac.uk18443/grimoi
  res/services
• Type
• gt Run InquireService
• Enter at the inquire prompt
• All services in registry are returned

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What to Hand In

• Submit source code, results files, parameter
  files and output
• Other parts that require written answers should
  form a separate document
• In text or Microsoft Word
• Up to 800 words in length, not including any
  trace output
• Submission via C-BASS Single Zip file source,
  results, parameter files, output written answers