chep 2000, 10.02.2000roberto barbera roberto barbera (*) the genius grid portal chep 2003,...

CHEP 2000, 10.02.2000 Roberto Barbera

Roberto Barbera(*)

The GENIUS grid portal

CHEP 2003, 24-28.03.2003

(*)work in collaboration with A. Falzone and A. Rodolico

Università di Catania and INFN Catania - Italy

ALICE Collaboration and DataGrid Project

Roberto BarberaRoberto BarberaCHEP 2003, 24-28.03.2003

Outline

Introduction

Motivations

Current status (through the real use made by the Experiments)

Summary and conclusion



GRID

MIDDLEWARE

Visualising

Workstation

Mobile Access

Supercomputer, PC-Cluster

Data-storage, Sensors, Experiments

Internet, networks

Roberto Barbera

The Grid metaphor



CHEP 2003, 24-28.03.2003

DataGrid job submission work-flowReplicaReplicaCatalogueCatalogue

UIJDL

Logging &Logging &Book-keepingBook-keeping

ResourceResourceBrokerBroker

Job SubmissionJob SubmissionServiceService

StorageStorageElementElement

ComputeComputeElementElement

Information Information ServiceService

Job Status

DataSets info

Author.&Authen.

Job S

ub

mit

Even

t

Job

Qu

ery

Job

Stat

us

Input “sandbox”

Input “sandbox” + Broker InfoGlobus RSL

Output “sandbox”

Output “sandbox”

Job Status

Pu

blis

h

grid

-pro

xy-in

it

Exp

and

ed J

DL

SE & CE info



Roberto Barbera




EDG m/w has been released but…EDG software (Globus, UI, JDL, WP2, WP3, etc.) contains tens of commands/switches which also have their own logical sequences.

Browsing Grid VO “directories” (users, RC’s, DB’s, etc.) requires LDAP “speaking” and tomorrow could require SQL “speaking”.

“User gridification” is a tough task for a “rookie” this does not fit with the claim that “grids” are for everybody and that grid computing will be as easy as surfing the Internet ?

Furthermore, all this holds for DataGrid. What will happen when other grids’ software (especially UI’s) will come up (PPDG, iVDGL, etc.) ? Will users have to learn tens of “grid dialects” ?

Today “grid computing” is a rather complicated experience for un-experienced user only possible at selected machines (UI’s) this does not fit with the claim that one could do “grid computing” even from a PDA ?

Is there any way to set-up a “user-friendly” grid ?

Roberto Barbera

A web portal: why and how ?It can be accessed from everywhere and by “everything” (desktop, laptop, PDA, WAP phone).It can keep the same user interface to several back-ends (grid “dialects” command-line UI’s).It must be redundantly “secure” at all levels: 1) secure for web transactions, 2) secure for user credentials, 3) secure for user authentication, 4) secure at VO level.All available grid services must be incorporated in a logic way, just “one mouse click away”.Its layout must be easily understandable and user friendly.

Roberto BarberaCHEP 2003, 24-28.03.2003




A little bit of history1998-1999graphic interface to LSF (multi) clusters for ALICE

jobs

2000-2001simple but effective web portal to submit ALICE

jobs to the grid using EnginFrame and GLOBUS

2002-nowofficial grant of the INFN Grid Project to

collaborate with NICE srl to integrate in a web portal all services offered by the DataGrid middle-ware; adoption/contributions by other experiments



Roberto Barbera

GENIUS®

(Grid Enabled web eNvironment for

site Independent User job Submission)

[https://genius.ct.infn.it]

INFN/NICE collaboration

OS & Net services

Basic Services

High level GRID middleware

ALICE ATLAS CMS LHCbApplications’specific layer

Other apps

GLOBUS

toolkit

DataGRID architectur

e

GENIUS web portal

CHEP 2003, 24-28.03.2003



https://genius.ct.infn.it/


Roberto Barbera

GENIUS: how it works

Apache

EnginFrame

GENIUShttps+java/xml+rfb

WEB Browser

EDGUI

Local

WS

the GridEDG+GSI

3-tier model

Roberto Barbera



Roberto BarberaRoberto Barbera



EnginFrame in briefStandards-based GRID portal Java, Tomcat, Apache, XML/XSL → GridML

Solves back-end integration problems Visual rendering for most Grid objects

jobs, job arrays, hosts, services, databases, etc. Multiple Grid technologies support

EDG, GLUE, Globus, Condor (soon) Authentication delegation (GSI,MyProxy, NIS,NT,

Kerberos V, ...) Data management: UL/DL + remote (multi-) file browsing Integration with interactive apps

End-user oriented focus! application integration


GENIUS show: the main page




GENIUS show: OS authentication




GENIUS show: file services




GENIUS show: grid authentication

MyProxy auth

enticatio

n !



Roberto Barbera

Grid authentication “à la MyProxy”

EDGUI

Local

WS

Roberto Barbera

MyProxy

Server

GENIUS

Server(EDG

UI)

grid-proxy-initmyproxy-init

any grid service

myproxy-get-delegatio

n

output

the Grid

execution

WEB Browser






ALICE: graphic job description

CHEP 2003, 24-28.03.2003 Roberto Barbera

ALICE: job submission




ALICE: job queue




ALICE: job output




ALICE: personal spooler






ALICE: grid file browsing

CHEP 2003, 24-28.03.2003



ALICE: grid file replication

Roberto Barbera

CHEP 2003, 24-28.03.2003



ALICE: grid file inspection

Roberto Barbera

CHEP 2003, 24-28.03.2003



ALICE: grid file downloading

Roberto Barbera




ALICE: interactive analysis




US

(cou

rtes

y of

L. V

acca

ross

a)

EU

ATLAS: “GLUE” job submission




(cou

rtes

y of

L. V

acca

ross

a)

ATLAS: interactive analysis




(cou

rtes

y of

M. V

erla

to)

CMS grid integration schema




(cou

rtes

y of

M. V

erla

to)

CMS: GENIUS/Impala integration




(cou

rtes

y of

M. V

erla

to)

CMS: GENIUS/BOSS integration


GENIUS show: Earth Ob. app.






GENIUS show: Biomed. app.

Roberto Barbera

Present status and perspectivesCurrent implementation of GENIUS includes more than 100 services. Among them: secure web transactions, user authentication and authorization; grid authentication “à la MyProxy” ! remote interaction with the user’s and “grid” file system; interfaces for job submission/control, data management, VO servers,

and monitoring systems; several Resource Brokers and VO’s available; persistent (user level) book-keeping and spooler system; secure interactive analysis with TightVNC full support for “parallel” multi-jobs (“sequential” ones soon) web guided job description (from DATAMAT) CVS available !

Next future: Participation to the GGF Grid Portal Manifesto and GCE Working

Group.

Roberto Barbera






FAQ’s…and answers (1)Q: I want to use GENIUS. Do I have to pay for it ?A: No. GENIUS is “open source” and the underlying portal framework EnginFrame is freefree for the education and research communities.Q: I want to use GENIUS. Do I need any software running on my laptop ?A: No client software needs to be installed apart from the web browser. GENIUS can really be accessed from everywhere.Q: Do I have to be afraid about cached password sent over the web ?A: Access passwords are securely “streamed” only when needed and then destroyed. Only temporary sessions are possible.Q: Can new authentication methods implemented into GENIUS ?A: Of course. Kerberos V is a good example. EnginFrame is already compliant with Kerberos authentication.




FAQ’s…and answers (2)Q: I want to add a new VO to GENIUS and customize new services for that VO. How can I do that ?A: A new VO can be added to GENIUS in just minutes. New VO specific services can be added just modifying only two files: an XML file and a shell script.Q: Can I use GENIUS to interface other m/w’s ?A: Yes. Although GENIUS is currently based on the DataGrid middleware(w/ and w/o GLUE extensions), it can be very easily interfaced to others. A direct interface to the Globus Toolkit already exists and another one to Condor is in progress.Q: How can I start downloading/using GENIUS ?A: Go to the reference site https://genius.ct.infn.it, click on “GENIUS CVS available” and follow the instructions.





Summary and conclusionComputational grids could represent the “natural” environment for next generation high energy physics experiments, computational bio-medicine, Earth observation and many other inter-disciplinary applications. “Grid” could be the Internet “new age” where users can seamlessly and ubiquitously access not only information but also huge computing resources and mass storage systems distributed worldwide with their own applications.However, in order to turn dreams into reality, grid access must be ubiquitous, easy and intuitive especially for the vast majority of non-expert users and these are just the goals of GENIUS. GENIUS is also a good example of implementation of real use cases started in one experiment and followed by others.

chep 2000, 10.02.2000roberto barbera roberto barbera (*) the genius grid portal chep 2003,...

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