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);
GILDA can offer free technical support for anyone willing to organize local training events on Grid computing
It can be undergraduate courses, M.Sc courses, tutorials, Grid Schools etc.

Request a Tutorial https://gilda.ct.infn.it

Events curricula
Customized training events: from 1 day tutorial to 2 weeks Grid School
Can be done without outside internet connection
Mérida, Venezuela Cairo, Egypt Catania, Italy Beijing, China

Bookmarks
GILDA home page
https://gilda.ct.infn.it
GILDA Support System
GILDA Form for tutorial bookings
GILDA Repository of Training Material
https://grid.ct.infn.it/twiki/bin/view/GILDA/WebHome
ICEAGE Library
http://www.iceage-eu.org/library
GILDA Virtual Services
https://gilda.ct.infn.it/VirtualServices.html

Thank you! - Q&A Lilongwe, Malawi

Grid INFN virtual Laboratory for Dissemination Activities

by Leandro Ciuffo

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