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Introduction to Grid computing and e-infrastructures

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This presentation introduces Grid computing and its components

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Introduction to Grid computing and e-infrastructures

  1. 1. Introduction to Grid computing and e-infrastructures<br />Leandro N. Ciuffo &lt;leandro.ciuffo@ct.infn.it&gt;<br />INFN – Catania (Italy)<br />EELA-2 Application Support Manager<br />Grid User Tutorial<br />Kampala, 11.11.2009<br />
  2. 2. 2<br />Computationally intensive research<br />Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />
  3. 3. 3<br />Computationally intensive research<br />Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />
  4. 4. 4<br />The Large Hadron Collider<br />The biggest experiment on Earth<br />LHC tunnel: 27 km circumference, 100m underground<br />15 Petabytes of data per year (41TB per day)<br /><ul><li>The biggest experiment on Earth
  5. 5. LHC tunnel: 27 km circumference, 100m underground
  6. 6. 15 Petabytes of data per year (41TB per day)</li></ul>Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />
  7. 7. 5<br />wind<br />coal<br />hydroelectric<br />nuclear<br />The power Grid paradigm<br />Electric <br />Power Grid <br />System<br />Users can access electrical power coming from different (and heterogeneous) sources<br />Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />
  8. 8. 6<br />The computing Grid approach<br />Users can access storage and computing resources coming from different (and heterogeneous) sources<br />Computing<br />Grid <br />System<br />The resources shared within the Grid can be physical objects (CPUs, storage devices) or logical resources (computing queues, distributed file systems)<br />Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />
  9. 9. Fourth EELA Workshop, Bogota, 05.03.2007<br />7<br />The Grid Metaphor<br />Mobile Access<br />G<br />R<br />I<br />D<br />M<br />I<br />D<br />D<br />L<br />E<br />W<br />A<br />R<br />E<br />Supercomputer, PC-Cluster<br />Workstation<br />Storage, Data from Sensors andinstruments<br />Visualising<br />
  10. 10. 8<br />e-Science<br />Virtual Organisations<br />e-Infrastructure<br />Applications<br />Data<br />Instruments<br />Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />
  11. 11. 9<br />Summarizing…<br /><ul><li>Grid computing involves connecting geographically remote computers into a single network to create a virtual supercomputer by combining the computational power of all computers on grid.
  12. 12. Heterogeneous resources, usually owned by diverse organizations</li></ul>Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />
  13. 13. The EGEE Grid<br />EGEE numbers:<br />&gt;260 sites<br />54 countries<br />~150,000 CPUs<br />&gt;28 PetaBytes<br />~14,000 users<br />~200 VOs<br />~330,000 jobs/day<br />
  14. 14. 11<br />The 1st Layer: The Global Network<br />Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />
  15. 15. 12<br />SEE-Grid<br />BalticGrid<br />DEISA<br />TeraGrid<br />EGEE<br />EUChinaGrid<br />OSG<br />NAREGI<br />EUMedGrid<br />EUIndiaGrid<br />EUAsiaGrid<br />EELA/<br />EELA-2<br />The 2nd Layer: The Global Grid<br />SAGrid<br />Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />
  16. 16. Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />13<br />The South African National Grid<br /><ul><li>A national project coordinated by Meraka Institute, in concert with Universities and National Laboratories, along the lines of EGEE, to provide an integrated collaborative, high-performance computing platform to the nation's researchers
  17. 17. Currently :
  18. 18. 7 sites providing computing resources (storage, CPU), 5 in negotiation.
  19. 19. 2 sites provide core services (information index, workload management, medatada, file catalogue)
  20. 20. Project entails
  21. 21. Training and dissemination (collaboration with GILDA/INFN, EPIKH project)
  22. 22. Certificate Authority for accreditation to EUGridPMA under development
  23. 23. Interoperability is paramount to international collaboration. Close coordination with IGI (Italian National Grid) and INFN
  24. 24. Middleware is 100% compatible with EGEE/EGI, close coordination in deployment/upgrade, etc.</li></li></ul><li>Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />14<br />The South African National Grid<br /><ul><li>Web presence:
  25. 25. Main website http://sagrid.ac.za
  26. 26. Support system : http://ops.sagrid.ac.za
  27. 27. Documentation, collaboration : http://wiki.sagrid.ac.za, http://docs.sagrid.ac.za
  28. 28. Events : http://indico.sagrid.ac.za
  29. 29. Any questions to SAGrid Coordinator:Bruce Becker BBecker@csir.co.za</li></li></ul><li>15<br />Who do you trust?<br />Grids need to know who you are<br />http://www.igtf.net<br />Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />
  30. 30. 16<br />Open Grid Forum<br />http://www.ogf.org<br />Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />
  31. 31. Middleware<br />Software layer which fills the gap between users applications and distributed resources<br />
  32. 32. Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />18<br />Grid Middleware<br /><ul><li>Globus Toolkithttp://www.globus.org/toolkit/
  33. 33. UNICOREhttp://www.unicore.eu/
  34. 34. Condorhttp://www.cs.wisc.edu/condor/
  35. 35. ARChttp://www.nordugrid.org/middleware/
  36. 36. OurGridhttp://www.ourgrid.org
  37. 37. OGSA-DAI http://www.ogsadai.org.uk
  38. 38. gLitehttp://glite.web.cern.ch/glite/</li></ul>(…)<br />
  39. 39. Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />19<br />Component layers<br />User’s applications<br />Community services / APIs developed by users <br />Core middleware services<br />Operating system<br />Network<br />
  40. 40. Kampala - Uganda, Grid User Tutorial, 11.11.2009<br />20<br />To learn more<br /><ul><li>GridCafe: The place for everybody to learn about gridhttp://www.gridcafe.org/
  41. 41. What is the Grid? http://access.ncsa.uiuc.edu/witg/
  42. 42. iSGTW: What is a grid? A crash course in grid computinghttp://www.isgtw.org/?pid=1000550
  43. 43. Gridipediahttp://www.gridipedia.eu/aboutgrid.html
  44. 44. GILDA Wikihttps://grid.ct.infn.it/twiki/bin/view/GILDA
  45. 45. EELA-2 - self-traininghttp://applications.eu-eela.eu/self_training.php?l=50</li>

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