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Henri Bal

DAS-1 DAS-2 DAS-3. Henri Bal. Vrije Universiteit Amsterdam Faculty of Sciences. Outline. Introduction DAS-1, DAS-2, DAS-3 systems Impact of DAS Collaborations with VL-e SURFnet Grid’5000 New users. Distributed ASCI Supercomputer.

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Henri Bal

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  1. DAS-1 DAS-2 DAS-3 Henri Bal Vrije Universiteit Amsterdam Faculty of Sciences

  2. Outline • Introduction • DAS-1, DAS-2, DAS-3 systems • Impact of DAS • Collaborations with • VL-e • SURFnet • Grid’5000 • New users

  3. Distributed ASCI Supercomputer • Joint infrastructure of ASCI research school • Clusters integrated in a singledistributed testbed • Long history (10 years)and continuity

  4. DAS is a Computer Science grid • Motivation: CS needs its own infrastructure for • Systems research and experimentation • Distributed experiments • Doing many small, interactive experiments • DAS is simpler and more homogeneous than other grids • Single operating system • “A simple grid that works’’

  5. Typical heterogeneous Grid

  6. DAS-1 (1997-2002) Configuration 200 MHz Pentium Pro 64-128 MB memory 2.5 GB local disk Myrinet interconnect BSDI => Redhat Linux VU (128) Amsterdam (24) 6 Mb/s ATM Leiden (24) Delft (24)

  7. VU (72) Amsterdam (32) SURFnet1 Gb/s Leiden (32) Delft (32) Utrecht (32) DAS-2 (2002-2007) Configuration two 1 GHz Pentium-3s >= 1 GB memory 20-80 GB disk Myrinet interconnect Redhat Enterprise Linux Globus 3.2 PBS => Sun Grid Engine

  8. DAS-3 Procedure • NWO proposal (ASCI, VL-e, MultimediaN), Sep’04 • Funding from NWO/NCF, Apr’05 • Steering group + implementation group • European tender (with Stratix and TUD/GIS) • Selected ClusterVision, Apr’06 • Optical wide-area network bySURFnet (GigaPort-NG project)

  9. DAS-3 • dual AMD Opterons4 GB memory • 250-1500 GB disk • More heterogeneous: • 2.2-2.6 GHz Single/dual core nodes • Myrinet-10G (exc. Delft) • Gigabit Ethernet • Scientific Linux 4 • Globus, SGE UvA/MultimediaN (46) VU (85) SURFnet6 UvA/VL-e (40) 10 Gb/s lambdas TU Delft (68) Leiden (32)

  10. Performance

  11. Outline • Introduction • DAS-1, DAS-2, DAS-3 systems • Impact of DAS • Collaborations with • VL-e • SURFnet • Grid’5000 • New users

  12. Usage of DAS • ~200 users, 34 Ph.D. theses • Clear shift of interest: Cluster computing Distributed computing Grids & peer-to-peer computing Virtual laboratories for e-Science

  13. Opening workshops • DAS-1 opening (1998): • only 1 talk (VU) about distributed computing • DAS-2 opening (2002): • only 1 talk (VU) about local computing • DAS-3 opening (NOW): • talks about grids, e-Science, optical networks, international embedding, distributed multimedia computing, P2P/gossiping, co-allocating Grid Scheduler

  14. Grid’5000 Impact of DAS • Major incentive for VL-e  20 M€ BSIK funding • Virtual Laboratory for e-Science • Collaboration SURFnet on DAS-3 • SURFnet provides multiple 10 Gb/s light paths • Collaboration with French Grid’5000 • Towards a European scale CS grid?

  15. VL-e: Virtual Laboratory for e-Science

  16. Some VL-e results • VLAM-G workflow system • KOALA scheduler (see Mohamed’s talk) • Zorilla peer-to-peer system (see Drost’s talk) • Java-centric grid computing (see demo) • Ibis: Grid communication library • Satin: divide&conquer on grids • JavaGAT: Gridlab Application Toolkit • Applications of Ibis, Satin, JavaGAT: • Automatic grammar learning (UvA) • Protein identification (AMOLF) • Brain image analysis (VUmc)

  17. SURFnet6 • 4 DAS-3 sites happen to be on Subnetwork 1 (olive green) • Only VU needs extra connection Source: Erik-Jan Bos

  18. Adding 10G waves for DAS-3 WSS • Band 5 added at all participating nodes • WSS added for reconfigurability • “Spur” to connect VU • Full photonic mesh possible • Source: Erik-Jan Bos • Also see De Laat’s talk UvA MultiMedian “spur” – hardwired connections VU Leiden Delft

  19. International grid experiments • Distributed supercomputing on GridLab • Real speedups on a veryheterogeneous testbed • Crossgrid experiments • N-body simulations (astronomy) • Grid-based interactivevisualization of medical images

  20. Grid’5000 Grid’5000 500 500 1000 500 Rennes Lyon Sophia 500 500 Grenoble 500 Bordeaux 500 500 Toulouse Orsay

  21. Connecting DAS-3 and Grid’5000 • Optical 10 Gb/sec link between Paris and Amsterdam, funded by VL-e • See Cappello’s talk (and keynote @ CCGrid2007)

  22. Users of DAS-3 • ASCI, VL-e • MultimediaN • See MultimediaN talk + demo • NWO projects • StarPlane, JADE-MM, GUARD-G, VEARD, GRAPE Grid, SCARIe, AstroStream, CellMath,MesoScale, ….. • NCF projects (off-peak hours)

  23. New users • DAS is intended primarily for computer scientists from ASCI, VL-e, MultimediaN • How do we define “Computer Scientist”? • Need a light-weight admission test …

  24. Proposed test There are only 10 types of people in the world: Those who understand binary and those who don't. • = Pass as Computer Scientist Source:

  25. Acknowledgements • NWO • NCF • SURFnet • VL-e • MultimediaN • VU, UvA, TUD, Leiden • ASCI • ClusterVision • TUD/GIS • Stratix • Lex Wolters • Dick Epema • Cees de Laat • Frank Seinstra • Erik-Jan Bos • Henk van der Vorst • Andy Tanenbaum • Bob Hertzberger • Henk Sips • Aad van der Steen • Many others

  26. Special acknowledgement …. • Reasons why DAS is ``a simple grid that works’’ • 1) simple, homogeneous design • 2) Kees Verstoep

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