Grid and SCIEnce

1
Grid and SCIEnce

• Semeniouk Igor
• LLR, Ecole Polytechnique
• Atelier de projet I3 SCIEnce

2
Why Grid

• Early Grid pioneers found that
• too hard to keep track of authentication data
  (ID/password) across institutions
• too hard to monitor system and application status
  across institutions
• too easy to leave "dangling" resources lying
  around, reducing system robustness
• too many ways to submit jobs
• too many ways to store, access, and ultimately
  manage distributed data.

3
Grid Architecture in a Nutshell
4
Middleware and GRIDS

• Middleware
• Globus Toolkit, Xgrid, Sun Grid,
• CORBA, Condor, RPC,
• User Identification
• Certificate, password, Kerberos,
• GRIDs
• LCG, EGEE, NorthGrid,

5
Globus Toolkit GT-4

• Certificates for User and Services
• Tools for job submission
• Web Services
• Data moving and data location
• Service discovery
• Monitoring
• VO Support
• Resource Broker
• Data replication

CA
IS
UI
CE
6
Globus Toolkit
CA
UI
SI
CE
7
Distributed Programming Frameworks

• NetSolve/GridSolve - NetSolve/GridSolve is an
  RPC-based library for executing solver code on
  Grid resources.
• Ninf-G - Ninf-G allows existing programming
  libraries to be used in a distributed fashion on
  a Grid using the RPC framework.
• MPICH-G2 - MPICH-G2 is a Grid-enabled
  implementation of the popular MPI (Message
  Passing Interface) framework
• Condor-G, DAGman - Condor-G and DAGman can be
  used to execute complex workflows (consisting of
  multiple independent or related jobs) using Grid
  compute resources via GRAM or Condor.

8
Globus Evolution

• Globus Toolkits
• Web Services
• WS-Resources Framework ( Grid via Web )

9
LCG and gLite software
MON
RB
UI
VOMS
UI
BDII
FTS
10
EGEE Monitoring
11
EGEE and LCG components
12
SCIE GRA1Symbolic Computing on the Grid

• JRA1.1
• Access to Symbolic Grid Services
• Service Discovery
• JRA1.2
• Access/Provide Grid Services
• Security polices
• JRA1.3
• UI for SymGrid
• Orchestration of Grid Components

• JRA1.4
• Adaptive scheduler
• Dynamic resources negotiator
• JRA1.5
• Compilation use cases
• Templates for common tasks
• JRA1.6
• Symbolic Grid Applications
• JRA1.7
• Evaluation

13
SCIE and EGEE

• JRA1.1
• Access to Symbolic Grid Services - Web Services
• Service Discovery - gLite Services discovery,
  Information Index
• JRA1.2
• Access/Provide Grid Services - WS-Resources
  Framework
• Security polices - Globus Security Framefork
• JRA1.3
• UI for SymGrid - WSRF
• Orchestration of Grid Components - MPICH-G,
  CONDOR-G
• JRA1.4
• Adaptive scheduler - RB
• Dynamic resources negotiator - CONDOR-G

14
Infrastructure EGEE / VO
NA Application Réseau
NA1 Management NA2 Dissémination NA3
Formation NA4 Applications et support NA5
Politique et coopération internationale
Aspect of Organisation in avarege
SA Services
SA1 Exploitation, support et management de la
grille SA2 Approvisionnement ressources
réseau SA3 Intégration du middleware, Test et
Certification

• EGEE (Avril 2004)
• Financé par lUE (32M)
• Deux ans
• EGEE-II (Avril 2006)
• Proposé à lUE (30M)
• Transition en cours
• Deux ans.

JRA Recherche commune
JRA1 Ingénierie logicielle JRA2 Qualité JRA3
Sécurité JRA4 Développement réseau
15
Projet EGEE Perspectives

• EGO European Grid Organization ?