Grid INFN virtual Laboratory for Dissemination Activities

Grid INFN virtual Laboratory for Dissemination Activities Leandro Neumann Ciuffo [email_address] INFN-Catania - Italy

Introduction

Figures

How to join GILDA

How to access GILDA

User assistance

Demonstrative Applications

Tutorial layout

Summary and conclusions

Outline

Introduction Bogotá, Colombia

Getting started

GILDA is a complete Grid test-bed

GILDA is an international effort funded by multiple sources

Demonstrate/disseminate grid computing

Adopted by several Grid projects worldwide

It runs the latest version of the gLite middleware

Using GILDA is free of charge

Why t-Infrastructure?

Avoid disruption of production systems of Grid projects

Users can practice prior to run their codes on the production e-Infrastructures

Prepare users for future middleware releases

Easy entry point for new users/communities

The GILDA Project – web portal https://gilda.ct.infn.it

General grid services available on GILDA MIDDLEWARE VERSION: gLite 3.1

Interoperable with other middlewares Super CE Super UI Condor OMII-UK Globus gLite UNICORE Condor OMII-UK Globus gLite UNICORE Single Authorization Framework

Figures Beijing, China

Figures (1)

Used in more than 300 tutorials in 52 countries

From 2004 onwards

Figures (2)

More than 10000 certificates issued to users

~30% renewed at least once

Test-bed

Current test-bed (best effort maintenance)

5 Grid sites

148 CPUs

455 TB of disk storage

GILDA is “bookable on-demand” and “clonable on-demand”

Several GILDA-like insfrastructures are often created and last for a short period of time

How to join GILDA Istanbul, Turkey

How to join GILDA (1)

Step 1: Head to the GILDA CA website https://gilda.ct.infn.it/CA/

Don’t panic! continue anyway / add an exception CERTIFICATION AUTHORITY GILDA

Step 2: Download the GILDA CA certificate

CERTIFICATION AUTHORITY GILDA

Step 3: Ask for a GILDA personal certificate

Wait a couple of days. You will receive an e-mail from the GILDA CA with the URL from where you can download your GILDA Personal Certificate.

You MUST always use the same computer and web browser you used to request your GILDA personal certificate.

Step 4: Install your GILDA Personal Certificate in your web browser (Just follow the instructions you will receive in your e-mail).

Step 5: Accept the GILDA Use Policy: https://gilda.ct.infn.it/aup.php

Step 6: Register with the GILDA Virtual Organization (VO) : https://gilda.ct.infn.it/vo.html

How to join GILDA - help yourself Clear instructions for different kinds of learners (users, sysadmins) about how to access the t-Infrastructure.

How to access GILDA Prague, Czech Republic

How to access GILDA (1/5)

Connecting to the GILDA User Interface via SSH glite-tutor.ct.infn.it / glite-tutor2.ct.infn.it

Login in to the Grid Tutor portal https://glite-tutor2.ct.infn.it

Using the Grid2Win user interface http://grid2win.forge.eu-eela.eu

Installing the User Interfaces Plug & Play https://gilda.ct.infn.it/UIPnP.html

compliant with Scientific Linux 4.5/6 and Fedora Core 8

[lciuffo@myPc]$ voms-proxy-init --voms gilda Enter GRID pass phrase: Your identity: /C=IT/O=GILDA/OU=Personal Certificate/L=INFN/CN=Leandro Ciuffo Creating temporary proxy ........................................................ Done Contacting voms.ct.infn.it:15001 [/C=IT/O=INFN/OU=Host/L=Catania/CN=voms.ct.infn.it] "gilda" Done Creating proxy ................................................... Done Your proxy is valid until Tue Nov 4 03:44:14 2008

Installing the User Interface Virtual Machine https://gilda.ct.infn.it/VirtualServices.html

VMware player required (free downloadable from www.vmware.com/products/player )

How to use GILDA – preparing the UI

Export your certificate from your browser

File PKCS12 (yourcert.p12)

How to use GILDA – preparing the UI

Convert the pkcs12 file into 2 pem files:

Change their permissions as follows:

Store both files in the $HOME/ .globus directory

openssl pkcs12 -nocerts -in cert.p12 -out userkey.pem openssl pkcs12 -clcerts -nokeys -in cert.p12 -out usercert.pem chmod 400 userkey.pem chmod 644 usercert.pem

User assistance La Plata, Argentina

User Assistance

Training material

Wiki page

Video tutorials

Step by step instructions

Support system

GILDA Forge

Support System

http://gilda-support.ct.infn.it

Create a ticket under the category "Grid User Environment"

Indicate the IP number(s) from where you would like to ssh to glite-tutor2.ct.infn.it User Interface

Wiki pages +90 topics (usage instructions, grid services installation and management, application development) with plenty of exercises. Three levels of difficulty: Basic, Medium, and Advanced

Demonstrative Applications Madrid, Spain

“ Virtuous cycle” of applications on GILDA Dissemination Training events “ Gridification” Deployment on large Infrastructures and inclusion in the portfolio of demonstrative applications

Applications: RASTER-3D

Set of tools for generating high quality raster images of molecules

Applications: Volcano Sonification

“ Sonified” data from geophysical data collected by digital seismographs placed on volcanoes.

(Picture: M. Monzier IRD/IG-EPN) (Picture: g1.globo.com) Etna, Italy Tungurahua, Ecuador

Applications: Volcano Sonification

Seismograms Melodisation

5s = 20h processing in a simple PC

Applications: hadronTherapy

Employed for the treatment of some kind of ocular tumours

Used to calibrate the proton beam line in reality

Applications: DEMTOOLs

Satellite image rendering program

Input: ASCII file in DEM format (Digital Elevation Model)

Output: VRML file

Tutorial layout Kuala Lumpur, Malaysia

Standard tutorial layout User Interface BDII Information System Worker nodes Worker nodes CE Computing Elements VOMS GILDA t-Infrastructure laptops LFC File catalogue WMS Resource Broker ssh SE Storage Elements local Infrastructure

This room layout malawi03 malawi04 malawi05 malawi06 User Credentials: Username: malawi XX Password: GridMAL XX (where XX in [01..30]) Grid Passphrase: MALAWI malawi07 malawi08 malawi11 malawi12 malawi13 malawi14 malawi15 malawi16 malawi09 malawi10 malawi17 malawi18 malawi01 malawi02

Conclusions Cairo, Egypt

Summary and Conclusions (1/2)

GILDA is a "de facto" standard t-Infrastructure adopted by several EU-FP6 and FP7 projects;

It is a complete suite of grid elements ( test-bed, CA, VO, monitoring system, web portal, user interfaces, support system ) and applications fully dedicated to dissemination purposes and pre-porting of new applications to EGEE-like Infrastructures;

It is also a digital inclusion tool by helping to spread Grid Computing knowledge around the world.

Summary and Conclusions (2/2)

GILDA and Africa

African scientific communities can use GILDA to “gridify” and run applications of local interest;

Institutions can setup “clones” of GILDA locally to implement campus grids or even nation-wide e-infrastructures (we are already doing so in South Africa and Cuba);