Grid portals Gergely Sipos 2004

Grid portalsGrid portals

Gergely Sipossipos@sztaki.hu

www.lpds.sztaki.hu

2004.

The World Wide WebThe World Wide Web

information

information

information

information

informationinformation

informationinformation

informationinformation

information

The Web: global information pool

A “piece” of information: a document, an image, an

audio file, …

The role of Web portalsThe role of Web portals

Webbrowser

information

information

information

information

informationinformation

informationinformation

informationinformation

information

Web portal #1

Web portal #2

Web portal #3

The role of Web portalsThe role of Web portals

Webbrowser

information

information

information

information

informationinformation

informationinformation

informationinformation

information

Web portal #1

Web portal #2

Web portal #3

Web portals collect, format and forward pieces of

information.

The role of Web portalsThe role of Web portals

Webbrowser

information

information

information

information

informationinformation

informationinformation

informationinformation

information

Web portal #1

Web portal #2

Web portal #3

Static links defined by the portal administrator!

The GridThe Grid

The Grid: global service pool

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A Grid Service:a “piece” of functionality

The role of Grid portalsThe role of Grid portals

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Webbrowser

Grid portal #1

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The role of Grid portalsThe role of Grid portals

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Webbrowser

Grid portal #1

Grid portal #2

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Grid portals collect and turns pieces of functionalities to

web pages.

The role of Grid portalsThe role of Grid portals

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Webbrowser

Grid portal #1

Grid portal #2

Grid portal #3

Dynamic links created by the portals automatically!

The inner structure of the GridThe inner structure of the Grid

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The inner structure of the GridThe inner structure of the Grid

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The different colors stand for different technologies!

(Globus, Jini, Web services, …)

The inner structure of the GridThe inner structure of the Grid

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These services are registered at the same information system.

These services are not registered at any

information system.

Different kinds of Grid portals 1:Different kinds of Grid portals 1:Technology specific portalsTechnology specific portals

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Webbrowser

Grid portal

Grid portal

Grid portal

Different kinds of Grid portals 2:Different kinds of Grid portals 2:Functionality specific portalsFunctionality specific portals

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Webbrowser

MedicalGrid portal

Computa-tional

Grid portal

Physical Grid portal

Different kinds of Grid portals 2:Different kinds of Grid portals 2:Functionality specific portalsFunctionality specific portals

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Webbrowser

MedicalGrid portal

Computa-tional

Grid portal

Physical Grid portal

This is the P-GRADE Portal!

The P-GRADE PortalThe P-GRADE Portal

General propertiesGeneral properties

• Portal for computational grids• Supported services – functionalities

– GT2 GRAM – job execution– Mercury – job monitoring– MyProxy – proxy credential management

• Contains a built-in workflow editor

The layers of the The layers of the P-GRADE Portal todayP-GRADE Portal today

Internet

host host host host host host host host host… host

P-GRADE Portal

Client browser

GT2GRAM

GT2GRAM… Mercury Mercury… MyProxy MyProxy…The supported

“technologies”

The layers of the The layers of the P-GRADE Portal todayP-GRADE Portal today

Internet

host host host host host host host host host… host

GT2GRAM

GT2GRAM…

Tomcat

DAGManCondor-G

Mercury Mercury… MyProxy MyProxy…

shell scripts

GridSphereJava 2 SDK API

Mercury Java API CoG Java API

Client browser

Makes the low-level protocols invisible

What is missing…What is missing…

Internet

host host host host host host host host host… host

Information system

P-GRADE Portal

Client browser

This layer makes the difference

between a Web and a Grid

portal!

GT2GRAM

GT2GRAM… Mercury Mercury… MyProxy MyProxy…

The layers of the The layers of the service-oriented Gridservice-oriented Grid

Internet

grid information

system

GS GS

host host host host host host host host host… host

…

…Global information system

Grid Portal

GS GS…grid

information system

GS GS…

grid information

system

GS GS…

The provider devices

Communication layer

grid-level functionalities

Make “local” service discovery

possible

Makes worldwidediscovery possible

Provides interfaces to grid services

Grid Portal Grid Portal…

Client browser

Client browser … Client

browserClient

browser … Client browser

Client browser …

Possible improvementsPossible improvementsof the P-GRADE Portalof the P-GRADE Portal

1. Connect it to new type of services.2. Connect it to well-known services with different

technologies.3. Make it cooperate with information systems:

– Is a Grid-level information system necessary?• Can it be implemented at all?• What technology should it use?

– What technologies have/require grid-level information systems?

– How to connect the Portal with the different information systems?

…

Improvement 1.Improvement 1.

Internet

host host host host host host hosthost

P-GRADE Portal(general portal)

Client browser

GT2Job

executor

Mercurymonitor

MyProxy certificate

storage

XFunctionality

YFunctionality

Connect the portal to new

type of services.

…

Improvement 2.Improvement 2.

Internet

host host host host host host hosthost

P-GRADE Portal(computational portal)

Client browser

GT2Job

executor

Mercurymonitor

MyProxy certificate

storage

XJob executor

YMonitor

Connect the Portal to

well-known services that

applies different technologies

…

Improvement 3.Improvement 3.

Internet

host host host host host host hosthost

Client browser

GT2Job executor

Mercurymonitor

MyProxy certificate storage

Make the Portal cooperate with

information system(s)

Information system

P-GRADE Portal(computational Grid portal)