1. EGEE tutorial introduction Luciano Gaido INFN -Torino
INFN-GRID/EGEE Grid User Tutorial
Torino, January 18-19, 2005
EGEE tutorial introduction Luciano Gaido INFN -Torino
EGEE is a project funded by the European Union under contract IST

2. Goals of the tutorial give an introduction on the current EGEE
middleware
give an overview of the grid services and
infrastructure
show how to use the grid resources
INFN-GRID/EGEE Grid User Tutorial - Torino,

3. Some preliminary info DataGrid (EDG):
grid project funded by the EU FP5 ( )
middleware release (base for LCG)
LCG (LHC Computing Grid):
“CERN” project started in 2002
european grid infrastructure (partially overlapping with INFNGRID
infrastructure)
middleware release (e.g. LCG2)
INFNGRID:
INFN project started in 2000
italian grid production infrastructure (aka Grid.it)
middleware release (e.g. INFNGRID-2.3.0, based on LCG-2.3.0)
INFN-GRID/EGEE Grid User Tutorial - Torino,

4. Some preliminary info (cont.)
EGEE:
grid project funded by the EU FP6 ( )
european grid infrastructure (interconnection of the national grids)
middleware release (e.g. EGEE-0 aka LCG2)
gLite will be the next middleware release
GILDA:
testbed (test infrastructure) used for demos, test of applications,
tutorials and dissemination
uses the INFNGRID m/w release
INFN-GRID/EGEE Grid User Tutorial - Torino,

5. Agenda (http://infnforge. cnaf. infn. it/cdsagenda//fullAgenda. php
INFN-GRID/EGEE Grid User Tutorial - Torino,

6. Overview and technical details
Each session includes:
a theoretical part on CLI and API usage in EGEE
a hands-on part.
Please, feel free to ask questions whenever you feel like
Hands-on sessions will use the dissemination Grid:
for more information, please refer to:
GILDA
INFN-GRID/EGEE Grid User Tutorial - Torino,

7. Few notes on GILDA Infrastructure (https://gilda.ct.infn.it)
Students Terminals
enter
Grid
enter
Grid
enter
Grid
enter
Grid CE SE UI UI WN WN WN
- PKI X.509 certificate keys
- JDL files WN
GILDA
RLS
RB/BDII
INFN-GRID/EGEE Grid User Tutorial - Torino,

8. Accessing the grid
Each participant will use a desktop on a private network:
Student’s desktops: ainfa01.aulainformatica.ph.unito.it
…..
ainfg08. aulainformatica.ph.unito.it
User: userxxx
Password: see the printed documentation
He will have to ssh connect to one of the three available GILDA User Interfaces (UI’s):
User Interfaces: ui-tut-03.aulainformatica.ph.unito.it
ui-tut-04.aulainformatica.ph.unito.it
ui-tut-05.aulainformatica.ph.unito.it
User: tutorxxx
Password: see the printed documentation
and use a temporary GILDA certificate:
Certificate Pass Phrase: see the printed documentation
INFN-GRID/EGEE Grid User Tutorial - Torino,

9. Materials Materials for the hands-on sessions are located: on the UIs:
tutor025]# ls -la
drwx tutor025 root Jan 17 11:56 .
drwxr-xr-x 83 root root Jan 17 17:13 ..
drwxr-xr-x 2 tutor025 root Jan 17 10:40 .globus
drwxr-xr-x 6 tutor025 root Jan 17 11:56 Exercises
tutor025]# ls -l Exercises/
drwxr-xr-x 4 tutor025 root Jan 14 15:01 IS
drwxr-xr-x 2 tutor025 root Jan 12 09:36 Job+Data
drwxr-xr-x 3 tutor025 root Jan 11 18:37 JobSubmission
drwxr-xr-x 5 tutor025 root Jan 14 15:01 SE
-rw-r--r tutor025 root Jan 11 17:37 uicommands.txt
on the agenda web page:
ppt and help (txt) files
INFN-GRID/EGEE Grid User Tutorial - Torino,

10. Few notes on EGEE
The EGEE middleware system has been developed in several different languages and by many different people in different countries
Programming languages such as C, C++, Python, Java etc. have been used
End user APIs usually exist in either C, C++ or Java
CLI and API libraries are either available in /opt/edg or /opt/lcg
…/bin CLI commands
.../lib for C, C++ libraries
.../share/java for Java libraries
The API signature is not very coherent; primarily due to different languages, technologies and maturity of middleware parts
Web services usually allow for a higher diversity of language bindings (APIs) than standard C or C++ based services
INFN-GRID/EGEE Grid User Tutorial - Torino,

11. Some more info COFFEE BREAKS
located in Aula Wataghin (old building, first floor)
follow the arrows
unfortunately at different times.... 
TUTORIAL EVALUATION
To improve the quality of the tutorials your feedback is very important.
Please don’t forget to fill in the form:
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12. Enjoy the tutorial
INFN-GRID/EGEE Grid User Tutorial - Torino,

13. Thanks to….
all the trainers and the people involved in the tutorial preparation:
Valeria Ardizzone (INFN Catania)
Stefano Bagnasco (INFN Torino)
Roberto Barbera (INFN Catania)
Simona Bortot (INFN Torino)
Riccardo Brunetti (INFN Torino)
Simone Campana (CERN)
Flavia Donno (CERN – INFN Pisa)
Emidio Giorgio (INFN Catania)
Giuseppe La Rocca (INFN Catania)
Stefano Lusso (INFN Torino)
Patricia Mendez Lorenzo (CERN)
Federico Nebiolo (INFN Torino)
Pierpaolo Pittavino (Dip. Fisica Teorica - Università di Torino)
Giuseppe Platania (INFN Catania)
Gennaro Tortone (INFN Napoli)
Cristina Vistoli (INFN CNAF)
prof D. Marocchi - Consiglio Corso di Laurea in Fisica dell’Università di Torino
dr. A. Maggiora - direttore INFN, sezione di Torino
INFN-GRID/EGEE Grid User Tutorial - Torino,