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GRID. D . R oyo, O. Ardaiz, L. Díaz de Cerio, R. Meseguer, A. Gallardo, K. Sanjeevan Computer Architecture Department Universitat Politècnica de Catalunya. Outline. Internet GRID Globus ULabGrid Summary. Internet. 1962 (tcp/ip) 1994 (www) Used for:

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slide1

GRID

D. Royo, O. Ardaiz, L. Díaz de Cerio, R. Meseguer, A. Gallardo, K. Sanjeevan

Computer Architecture Department

Universitat Politècnica de Catalunya

outline
Outline
  • Internet
  • GRID
  • Globus
  • ULabGrid
  • Summary
internet
Internet
  • 1962 (tcp/ip)
  • 1994 (www)
  • Used for:
    • EXCHANGE information (documents, messages, images, etc.)
slide4

Outline

  • Internet
  • GRID
  • Globus
  • ULabGrid
  • Summary
slide5
GRID
  • GRID (96): infrastructure that enables the use of computers (and resources in general) owned and managed by multiple organizations

Networked virtual supercomputers:

networks connecting supercomputers, DB, scientific instruments... distributed geographically

grid applications
GRID Applications
  • Smart instruments: Advanced scientific instruments coupled with supercomputers, users and databases.
  • Distributed supercomputing: to solve problems too large to fit on any single computer
  • Teraflop desktops: transfer intensive operations to more capable resources
grid applications1
GRID Applications
  • Aplication Service Provider (ASP) and Computing farms
    • Service-oriented: Out-sourcing hardware, software, services in general
    • Access any resource through WWW
      • Software and hardware.

Idea: the end-users do not acquiere the resources only uses them and pay for it

advantages
Advantages
  • Save money
    • only a PC to access the net (save 30%)
    • management and maintenance (save up 65%)
  • Avoid hardware and software updates
    • ASP’s ensures the updating
  • Flexible information access
    • From anywhere at anytime
advantages1
Advantages
  • Possibility to solve new problems
  • Interoperability
  • Small users can access the service
    • Out-source the service is cheap
system key characteristics
System Key Characteristics
  • Heterogeneity at multiple levels
    • Hardware, software, networks, users, etc.
  • Multiple administrative domains
    • Security problems: authentication mechanism, acces policies, etc.
    • Fiability
    • Accounting
slide11

Outline

  • Internet
  • GRID
  • Globus
  • UlabGrid
  • Summary
globus
Globus
  • What is Globus?

Research and development project focused on enabling the application of Grid concepts to scientific and engineering computing

To help to build GRIDS and develop GRID applications

globus services
Globus Services
  • Basic modules
    • Resource Management (GRAM)
    • Communication (Nexus)
    • Information (MDS)
    • Security (GSI)
    • Helth & Status (HBM)
    • Remote Data Access (GASS)
    • Executable Management (GEM)
globus services1
Globus Services

Applications and

Higher level services

Globus Toolkit modules

Metacomputing Testbeds

I-WAY/GUSTO

globus services nexus
Globus Services: Nexus
  • Communication services
    • Flexible Nexus Communication Library
      • Define communication links
      • Perform Remote Service Request (RSR)
      • Select the protocol for a RSR depending when, where and what is being communicated

MPI: if diferent nodes of a parallel computer

TCP/UDP: if different computers reliable/unreliable

globus services gridftp
Globus Services: GridFTP
  • Data Transfer Protocol: GridFTP
    • Parallel data transfer: multiple TCP streams
    • Partial file transfer
    • Striped data transfer: partitioning data across multiple servers
slide17

Outline

  • Internet
  • GRID
  • Globus
  • ULabGrid
  • Summary
ulabgrid
ULabGrid

Student

Student

Student

Student

Web Browser

Web Browser

Web Browser

Web Browser

ULabGrid

School 1

School 2

slide19

%Vnc-server:1

%nam &

6->Interact with NAM

GassServer

Globus-Gatekeeper

GassServer

Globus-Gatekeeper

Pentium IV pcmartino.ac.upc.es

Pentium IV pc4.ac.upc.es

VNC-client

4->Exec VNC, Exec NAM

5-Return VNC port

GassServer

Globus-Gatekeeper

Pentium IV pc5.ac.upc.es

GassServer

Globus-Gatekeeper

Session Scheduler

Pentium IV pc3.ac.upc.es

Grid-Proxy GassServer

GlobusPortal

User Directory

2->Launch NAM

GassServer

Globus-Gatekeeper

Web Browser

Pentium IV pc5.ac.upc.es

Student

Resource Mgr

ReplicaMgr MetadataDirectoryServer

ULab Grid

3->Put User Files

Pcribes.ac..upc.es

1->Deploy Application

GSSHFTP

Globus-Gatekeeper

File Server

avant.upc.es

Instructor: Manages Ulab Apps

ulabgrid modules
ULabGrid Modules
  • Session Scheduler
  • Resource Management
  • Collaborative services
  • File Management
  • Tool management and deployment
advantages of using ulabgrid
Advantages of using ULabGrid
  • Software installing and maintenance
  • Licensing
  • Easy acces to hardware and software resources
  • Easy to change the lab contents
  • Simplified interfaces
more advantages
More advantages ...
  • Students can be exercices at home without physical presence at the educational center
  • Students can familiarize with the execution tool environment before the course starts
    • Manuals
    • examples
slide23

Outline

  • Internet
  • GRID
  • Globus
  • ULabGrid
  • Summary
summary
Summary
  • Information of interest
    • GRID Forum
    • www.globus.org
    • The Grid: Blueprint for a New Computing Infrastructure, I. Foster and C. Kesselman

Morgan Kaufmann