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Grid'5000 and Grid eXplorer 1 GdX GdX Grid5000 & Grid5000 Grid eXplorer eXplorer Grid Plates-formes de Grilles exprimentales mutualises lchelle nationale ACI GRID & ACI MD Franck Cappello INRIA fci@lri.fr

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Franck Cappello INRIA fci@lri.fr

Avec tous les membres participants

Plates-formes de Grilles expérimentales mutualisées à l’échelle nationale ACI GRID & ACI MD

Grid’5000

ACI Masse de Données

ACI GRID

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Agenda

  • Rational
  • Grid’5000
  • Grid eXplorer
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Grid raises a lot of research issues: Security, Performance, Fault tolerance, Scalability, Load Balancing, Coordination, Message passing, Data storage, Programming, Algorithms, Communication protocols and architecture, Deployment, etc. Theoretical models and simulators cannot capture real life or real size conditions Production platforms have strong difficulties to reproduce experimental conditions How to test and compare?

  • Fault tolerance protocols
  • Security mechanisms
  • Networking protocols
  • etc.

Grid experimental platforms rational

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log(cost) log(realism )

m ath sim ulation em ulation live system s Models: Sys, apps, Platform s, conditions Real system s Real applications Real platform s Real conditions

Tools for Distributed System Studies

To investigate Distributed System issues, we need: 1) Tools (model, simulators, emulators, experi. Platforms) 2) Strong interaction between these research tools

Tools for Large Scale Distributed Systems

Real system s Real applications “I n- lab” platform s Synthetic conditions Key system m ecas. Algo, app. kernels Virtual platform s Synthetic conditions

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Grids are complex dist. Systems.

  • Systems

– nodes, OS, – distributed systems mechanisms (resource discovery, storage, scheduling, etc.), – middleware, runtimes, – Fault (crash, transient) – Workload (multiple users/ multiple applications) – Heterogeneity (resource diversity, performance) – Malicious users/ behaviors

  • Networks

– routers, links, topology, – protocols, – Theoretical features: synchronous, pseudo synchronous or asynchronous – Disconnection – Packet loss – Congestion

Static Static Dyn. Dyn.

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Existing Grid Research Tools

  • SimGRid and SimGrid2
  • Discrete event simulation with trace injection
  • Originally dedicated to scheduling studies
  • GridSim
  • Australian competitor of SimGrid
  • Dedicated to scheduling (with deadline)
  • Titech Bricks
  • Discrete event simulation for scheduling

and replication studies

  • MicroGrid
  • Emulator with MPI communications
  • Not dynamic

No emulator or real life experimental platform These tools do not scale (limited to ~ 100 grid nodes) They do not consider the network issues (almost)

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log(cost) log(realism )

m ath sim ulation em ulation live system s Sim Grid MicroGrid Bricks NS, etc. Model Protocol proof

Grid eXplorer

WANinLab Emulab Grid’5 0 0 0 TERAGrid PlanetLab Naregi Testbed

We need Grid experimental tools

According to the current knowledge: There is no large scale testbed dedicated to Grid experiments

Grid’5000 as a real life system Grid eXplorer as a large scale emulator

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A New Generation of Research Tools

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NAREGI Middleware Development Infrastructure

  • Under Procurement – Installation planned in Dec.

2003

– 3 SMPs, 128 procs total – 6 x 128-proc clusters, with different interconnects – 1 File Server – Multi-gigabit networking to simulate Grid Environment – NOT a production system (c.f. TeraGrid) – Mainly geared towards R&D, but could be used partially for experimental production – ~ 5 Teraflops – To form a Grid with the IMS NAREGI application testbed infrastructure (~ 10 Teraflops, March 2004), and other national centers(voluntary basis) via SuperSINET

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Netbed (Emulab)

Comme « Modelnet » Description de la topologie => NS script Utilisation de Dummynet Outils de Mapping routeur_logique => machine physique Utilisation du simulateur NSE (ns emulation) Utilisation de noeuds exterieurs client (40 DSL)

3 Sites

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GNET-1

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Grid’5000 1) Remotely controllable Grid nodes installed in geographically distributed laboratories 2) A « Controllable » and « Monitorable » Network between the Grid nodes (may be unrealistic in some cases) 3) A middleware infrastructure connecting allowing users to access the Grid sites 4) A playground to prepare experiments 5) A toolkit to deploy, run, monitor, control experiments and collect results

What do we need for Grid experiments ?

We need these components for a nation wide experimental platform

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Agenda

  • Rational
  • Grid’5000
  • Grid eXplorer

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1) Building a nation wide experimental platform for Grid researches (like a particle accelerator for the computer scientists)

  • 8/ 10 geographically distributed sites
  • every site hosts a cluster (from 256 CPUs to 1K CPUs)
  • All sites are connected by RENATER (French Res. and Edu. Net.)
  • RENATER hosts probes to trace network load conditions
  • Design and develop a system/ middleware environment

for safely test and repeat experiments

2) Use the platform for Grid experiments in real life conditions

  • Address critical issues of Grid system/ middleware:
  • Programming, Scalability, Fault Tolerance, Scheduling
  • Address critical issues of Grid Networking
  • High performance transport protocols, Qos
  • Port and test applications
  • Investigate original mechanisms
  • P2P resources discovery, Desktop Grids

The Grid’5000 Project

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Participants

  • Franck Cappello (animateur)
  • Thierry Priol (Directeur directeur ACI Grid)
  • Brigitte Plateau (Directrice CS ACI Grid)
  • Dani Vandrome (Renater)
  • Frédéric Desprez (Lyon)
  • Michel Daydé (Toulouse)
  • Yvon Jégou (Rennes)
  • Stéphane Lantéri (Sophia)
  • Raymond Namyst (Bordeaux)
  • Pascale Primet (Lyon)
  • Olivier Richard (Grenoble)

Comité de Pilotage (11) :

Jean-Luc ANTHOINE Jean-Claude Barbet Pierrette Barbaresco Nicolas Capit Eddy Caron Christophe Cérin Olivier Coulaud Georges Da-Costa Yves Denneulin Benjamin Dexheimer Aurélien Dumez Gilles Gallot David Geldreich Sébastien Georget Olivier Gluck Claude Inglebert Julien Leduc Cyrille Martin Jean-Francois Méhaut Jean-Christophe Mignot Thierry Monteil Guillaume Mornet Alain Naud Vincent Néri Gaetan Peaquin Franck Simon Sebastien Varrette Jean-Marc Vincent

Comité Technique étendu (28) :

Grid’5000

Forums:

Deploym ent/ exploitation: Franck Cappello (AS1, RTP8) Program m ing m odels: Raymond Namyst (AS2, RTP8)

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www.grid5000.org

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Grid’5000 in November’2004

Funding: ACI Grid, ACI MD, INRIA, CNRS, Reg.

Grid 5000 nodes

Connexion des sites à 1 Gbits

3

Grid eXplorer

Pau

~ 4M€ for hardware only (including 2004 fund)

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Grid’5000 Hardware

Call for proposals Sept03 Selection

  • f 7 sites

Nov03 ACI GRID Funding Jan04 Call for Expression Of Interest March04 Vendor selection Jun/ July 04 Instal. First tests Spt 04 Final review Oct 04 Fisrt Demo (SC04) Nov 04

Grid’5000 System/ middleware Forum Security Prototypes Control Prototypes Grid’5000 Programming Forum Grid’5000 Grid’5000 Experiments

Planning

Renater connection Demo preparation

today Switch Proto to Grid’5000

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Summary of Grid5000 experiments

  • f Grid’5000 members
  • Networking

– End host communication layer (interference with local communications) – High performance long distance protocols (improved TCP) – High Speed Network Emulation

  • Middleware / OS

– Grid’5000 control/ access – Grid’5000 experiment automation – Scheduling / data distribution in Grid – Fault tolerance in Grid – Resource management – Grid SSI OS and Grid I/ O – Desktop Grid/ P2P systems

  • Programming

– Component programming for the Grid (Java, Corba) – GRID-RPC – GRID-MPI – Code Coupling

  • Applications

– Multi-parametric applications (Climate modeling/ Functional Genomic) – Large scale experimentation of distributed applications (Electromagnetism, multi-material fluid mechanics, parallel optimization algorithms, CFD, astrophysics – Medical images, Collaborating tools in virtual 3D environment

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Grid’5000 Design goal:

Experimenting all layers of the Grid software stack

Algorithms Runtime Middleware Operating System Programming Environments Networking Application

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Visions utilisateur de Grid’5000

  • Comme un grand cluster de clusters

– Pas de nécessité de gérer la sécurité (tous les ports sont ouverts entre ressources Grid’5000 rsh, etc. fonctionnelles, possibilité de tester NFS, etc.) Tester les exécutifs et les applications sans interférence vis-à-vis de la sécurité (isolation des phénom ènes)

  • Comme un ensemble de clusters dans des

domaines d’administration distincts.

– Nécessité de gérer la sécurité (au minimum SSH sur tous les nœuds), idéalement : possibilité de sélectionner le middleware de gestion de la sécurité (Globus 2, 3, 4?) Tester les exécutifs et les applications dans des conditions de sécurité réalistes.

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Modes d’utilisation

  • Partagé (préparation des expériences, taille S)

– Pas de ressources dédiées (les utilisateurs se loguent sur les nœuds et utilisent le système par défaut, pas de middleware, etc.)

  • Réservé (à la Planet-Lab, taille M)

– Ressources réservées non coordonnées (les utilisateurs peuvent changer l’OS sur les nœuds qu’ils ont réservés)

  • Batch (automatique, taille L ou XL)

– Les ressources de Grid’000 sont réservées par les utilisateurs et les expériences sont en mode automatique)

  • Avec planification possible

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Architecture for Grid’5000 prototype (adressage privé)

Switch Grid

controleur

LABO Routeur RENATER MPLS vlans

Firew all/ nat

Switch/routeur labo

Front-end local

Routeur RENATER Routeur RENATER Routeur RENATER

Site grid5000 Controleur = serveur de boot, replicat LDAP?, DNS secondaire, ordonnancement… Front-end local = routes statiques vers grid5000 et default vers Firewall/nat Firewall/nat = 2 interfaces, redirige accès port 22 vers front-end-local Cluster banalisé Adresses privées RENATER

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Control commands

Lab’s Network

LAB/ Firewall Router

Test Cluster

Control Master

Site 1 Site 2 Site 3 Users

(ssh loggin + password)

Firewall/ nat

Control Slave

Test Cluster

Boot server + dhcp

  • rsync (kernel,dist)
  • orders (boot, reset)

Control Slave

user site

Grid’5000 prototype (Control)

System kernels and distributions are downloaded from a boot server. They are uploaded by the users as system images. Grid'5000 and Grid eXplorer

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Middleware1(XP)Grid5000

  • Grid’5000 control
  • Computing Environment deployment (Ka-tools)
  • Experiment automation (security and control)
  • VGrid « mapping a virtual Grid on a real testbed »
  • Monitoring, benchmarking, performance characterization and analysis
  • Scheduling / distribution
  • Scheduling : Data transfers, global communications, work stealing,...
  • Data re-distribution in Grid
  • Task distribution and load balancing in heterogeneous Grid
  • Mixed Parallelism (task and data parallelism)
  • Mixing data management and task scheduling
  • Hierarchical and Distributed Scheduling
  • Fault tolerance
  • Fault tolerant Grid-RPC (RPC-V)
  • Hierarchical Fault tolerant MPI (MPICH-V)
  • Fault tolerant in data-flow approach (Athapascan)

XP: eXPeriments on

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Middleware2(XP)Grid5000

  • Management
  • AROMA tool : resources management over a Grid of clusters with

different classes of services

  • Mobile agents for open Grid management
  • Management of Grids and hosted services (security, QoS, monitoring &

control, dynamic configuration, … )

  • Optimization for wide area distributed query processing
  • Virtualization of data storage on Grids
  • Automatic Deployment
  • f GridRPC middle tier.
  • Multiclusters and lightweights Grid resource management (OAR/ CIGRI)
  • Global Computing/ P2P Middleware
  • Executing Web Services on Desktop Grid Workers (XtremWeb)
  • Distributing the Coordination in Desktop Grids (XtremWeb)
  • Harnessing Clusters as parallel Workers
  • Probabilistic certification in peer-to-peer systems
  • Large Scale Data Sharing Service based on JXTA (JuxMem)
  • Experimenting management services for textual document in P2P

systems

  • Grid SSI OS and Grid I/ O
  • Grid file system (NFSG)
  • Grid-aware OS (Kerrighed)
  • Coupling Computational Grid with Reality Center

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  • End Host Communication layer
  • Intelligent Usage of NICs for local and wide area communications
  • Direct file access over Myrinet : ORFA/ NFS and ORFA/ LUSTRE
  • High performance long distance protocols
  • Alternative Transport for very high speed networks (backpressure)
  • Differentiated transport with delay control on WAN
  • Reliable active and non active Multicast
  • Network Bandwidth optimization in Grid (VTHD+ + , Paco+ + ).
  • High Speed Network Emulation
  • Automatic Deployment of emulated high speed domains
  • Experiment design for grid flow interactions studies
  • Grid Networking Layer
  • Network Resource and QoS on demand
  • Grid Overlay and Programmable Routers
  • Measurement Services for network aware middleware

Network(XP)Grid5000

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  • Component programming on the grid
  • ProActive : a JAVA library (parallel, distributed, concurrent

computing with security and mobility)

  • Assessment of scalability, deployment, security and fault

tolerance issues

  • Hierarchical components architecture
  • PadicoTM/ Paco+ + combining parallel and distributed computing
  • RPC Environment
  • Large scale experimentation of the DIET platform (Distributed

Interactive Engineering Toolbox)

  • Client/ Agent/ Server model following the GridRPC standard with

distributed scheduling agents

  • MPI Environment
  • Time sharing Grid resources
  • Migration over Clusters with heterogeneous high speed networks
  • Code Coupling
  • Application coupling with Athapascan
  • Communication / method invocation rescheduling into ORB (HOMA)
  • Fluid transfer simulation and geological code with PadicoTM/ Paco+ +

Programming(XP)Grid5000

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Applications(XP)Grid5000

  • Multi-parametric applications
  • ACI GRID-TLSE Project : expertise site for sparse linear algebra
  • Climate modeling and Global Change
  • DataGène Project : Functional genomic
  • Large scale experimentation of distributed message passing

applications

– Computational Electromagnetism application (JEM3D) – MECAGRID (ACI GRID project, Smash project-team)

  • Massively parallel computations in multi-material fluid mechanics
  • Study of numerical algorithms for heterogeneous computing platforms

– Grid computing for medical applications (Epidaure project-team)

  • Interoperable medical image registration grid service

– Optimal design of complex systems (Coprin project-team)

  • Evaluation of parallel optimization algorithms based on interval

analysis techniques

  • Study of load balancing strategies on heterogeneous resources
  • CFD, astrophysics,… applications
  • Collaborating tools in virtual 3D environment.
  • New algorithms (iterative asynchronous methods)
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  • 5 démos déclanchées à la demande :

– Infrastructure G5k : on/ off/ reboot, OAR, etc. – Expériences réseaux – Installations/ modifications middleware (Globus) – Environnements (DIET, Padico, PM2, Pro-active, XW, etc.) – Applications

  • 3 objectifs

– Expérimenter/ éprouver l’infrastructure Grid’5000 – Démo pour les extérieurs/ présentations/ politiques – Démo pour les grandes conférences (SC)

  • 2 contraintes

– Démos très visuelles – Démontrant les capacités de Grid5000 en plus de celles des logiciels

Demos

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Other experiments on Grid’5000

  • Grid’5000 will be opened to other French Grid researchers

(certainly through a selection procedure) in 2005

  • Grid’5000 may be connected to the EU CoreGrid testbed and

may be used as an experimental platform for CoreGrid researchers (still through a kind of selection procedure)

  • Meeting before or after September 16-17, gathering ACI MD

project members with Grid’5000 participants.

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Agenda

  • Rational
  • Grid’5000
  • Grid eXplorer (GdX)

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log(cost) log(realism )

m ath sim ulation em ulation live system s Sim Grid MicroGrid Bricks NS, etc. Model Protocol proof

Grid eXplorer

Grid’5 0 0 0

Grid’5000 + Grid eXplorer

Combining two Grid research instruments Relax Real Life Conditions Relax Conditions Reproducibility

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Grid eXplorer Analogy with physic instruments

Measurement units Experimental Conditions database/ injector 1k Cpu Emulator

The Cosmotron. This was the first accelerator in the world to send particles to energies in the billion electron volt, or GeV, region, 1953.

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Grid experiments under synthetic reproducible conditions

1) Build the instrument:

  • 1K CPU cluster (may be only 600 depending on the budget)
  • configurable network (Ethernet, Myrinet, others?)
  • configurable OS (kernel, distribution, etc.)
  • A set of emulation/ simulation tools (existing + new ones)
  • Multi-users
  • Located/ managed by IDRIS

2) Study impact of Scale in Grid/ P2P systems

  • Address critical issues of Grid system/ middleware:
  • Programming, Scalability, Fault Tolerance, Scheduling
  • Address critical issues of Networking :
  • High performance transport protocols, Monitoring, Qos
  • Port and test applications
  • Investigate original mechanisms
  • P2P resources discovery, Desktop Grids

Grid Grid eXplorer eXplorer

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Grid eXplorer Big picture

An experimental conditions data base

Emulator Core

Hardware + Soft:

Emulation & Simulation

A set of tools for analysis A set of sensors in Grid’5000 (Renater) Validation on Grid’5000

Emulab cluster

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Grid eXplorer Funding plan

Secured: ACI Masse de données: 750 K€ TTC ACI Grid’5000 2004 : 155 K€ TTC INRIA Rocquencourt: 150 K€ TTC INRIA Futurs: 150 K€ TTC Submitted: SESAME Ile de France: 900 K€ TTC ASTRE 2005: 300 K€ TTC 1.2 M€ secured Possibly 2,4 M€ in total.

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Grid eXplorer Architecture objectives

Emulation of 1) large scale distributed systems 2) Grid made of clusters of clusters

1 K CPU 64 bits + 64 to 100 Network emulators + Gigabit Ethernet between all nodes (125 Mbits/ s) + 128 nodes High speed network (Myrinet, Infiniband) + 10 to 20 Gbits/ s links between cluster partitions + 128 nodes High speed network (Infiniband, Myrinet)

128 Noeuds Switch 48 ports 1Gb/s 10 Gb/s 10 Gb/s 128 Noeuds 1Gb/s Switch 48 ports

Infiniband

Ethernet

Myrinet

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I RI SA, Institut de Recherche en Informatique et Systèmes Aléatoires CEA, Direction des Technologies de l'Information (Saclay) I BCP ( UMR5 0 8 6 ) , Institut de Biologie et Chim ie des Protéines LABRI ( UMR 5 8 0 0 ) , Laboratoire Bordelais de Recherche en Informatique LI P6 ( UMR 7 6 0 6 ) , Laboratoire d'Informatique de Paris 6 I NRI A Sophia Antipolis, UNSA, I 3 S-CNRS LI FL ( ESA 8 0 2 2 ) , Laboratoire d’Informatique Fondamentale de Lille LI P-ENS Lyon ( URM 5 6 6 8 ) , Laboratoire de l'Informatique du Parallélisme LORI A ( UMR 7 5 0 3 ) , Laboratoire lorrain de recherche en informatique et ses applications LAAS-CNRS (UPR 8001), Laboratoire d'Analyse et d'Architecture des Systèmes LRI (UMR 8623), Laboratoire de Recherche en Informatique, Université de Paris-sud LaRI A (UPRES EA 2083), Laboratoire de Recherche en Informatique d’Amiens, Université de Picardie Jules Verne I MAG, I D (UMR 5132), Laboratoire d’Informatique et Distribution, Université de Grenoble

ACI Masse de Données DGdX

13 Labs

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Alain Lecluse (IBCP), Alexandre Genoud, (Projet OASIS, INRIA Sophia Antipolis) Antoine Vernois, (IBCP) Arnaud Contes, (Projet OASIS, INRIA Sophia Antipolis) Aurélien Bouteiller, (LRI), Bénedicte Legrand (LIP6) Brice Goglin (doctorant), (INRIA LIP RESO), Brigitte Rozoy (LRI) Cécile Germain (LRI) Christophe Blanchet, (IBCP) Christophe Cérin, (Amiens, Laria) Christophe Chassot, (LAAS-ENSICA), Colette Johnen (LRI) CongDuc Pham, (LIP) Cyril Randriamaro, (LaRIA) Denis Caromel, (Projet OASIS, INRIA Sophia Antipolis) Eddy Caron, (LIP/ENS Lyon), Emmanuel Jeannot, (Loria) Eric Totel (Supélec Rennes) Fabrice Huet, (Projet OASIS, INRIA Sophia Antipolis) Faycal Bouhaf (DEA)(INRIA LIP RESO), Franck Cappello, (LRI) Françoise Baude, (Projet OASIS, INRIA Sophia Antipolis) Frédéric Desprez, (LIP/INRIA Rhône-Alpes), Frédéric Magniette, (LRI) Gabriel Antoniu, (IRISA/INRIA Rennes), George Bosilca, (LRI) Georges Da Costa, (ID-IMAG), Géraud Krawezik (LRI) Gil Utard, (LaRIA) Gilles Fedak, (LRI) Grégory Mounié (ID-IMAG) Guillaume Auriol, (LAAS-ENSICA), Guillaume Mercier, (LaBRI), Guy Bergère, (LIFL, GrandLarge INRIA Futur) Haiwu He, (LIFL, GrandLarge INRIA Futur) Isaac Scherson, (LIFL, GrandLarge, INRIA Futur) Jens Gustedt (LORIA & INRIA Lorraine) Joffroy Beauquier (LRI) Johanne Cohen, (Loria) Kavé Salamatian (LIP6), Lamine Aouad (LIFL, GrandLarge, INRIA Futur) Laurent Baduel, (Projet OASIS, INRIA Sophia Antipolis) Laurent Dairaine, (LAAS) Luc Bougé, (IRISA/ENS Cachan Antenne de Bretagne), Luciana Arantes (LIP6), Ludovic Mé, (Supélec Rennes) Luis Angelo Estefanel, (ID-IMAG) Marin Bertier (LIP6), Mathieu Goutelle, (KIP) Mathieu Jan, (IRISA) Michel Diaz, (LAAS-ENSICA), Michel Koskas (Amiens, Laria) Nicolas Lacorne, (IBCP) Nicolas Larrieu (LAAS-ENSICA), Nicolas Viovy (CEA-DSM-LSCE) Oleg Lodygensky, (LRI) Olivier Richard (ID-IMAG), Olivier Soyez, (LaRIA) Pascal Berthou, (LAAS-ENSICA), Pascale Primet (LIP), Pascale Vicat-Blanc Primet, (INRIA LIP RESO), Patrick Sénac, (LAAS-ENSICA), Philippe d'Anfray (CEA-DTI/SISC), Philippe Gauron, (LRI) Philippe Owezarski (LAAS) Pierre Fraigniaud, (LRI) Pierre Lemarini, (LRI) Pierre Sens (LIP6 / INRIA), Pierre-André Wacrenier, (LaBRI), Raymond Namyst, (LaBRI), Samir Djilali, (LRI) Sébastien Tixeuil (LRI) Serge Petiton, (LIFL, GrandLarge INRIA Futur) Stéphane Vialle (Supélec) Tanguy Pérennou (LAAS) Thierry Gayraud, (LAAS-ENSICA), Thierry Priol, (IRISA) Thomas Hérault, (LRI) Timur Friedman (LIP6) Vincent Danjean, (LaBRI), Vincent Néri (LRI)

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4 Research Topics

The 4 research topics and their leaders:

  • Infrastructure (Hardware + system),

Olivier Richard (ID-IMAG)

  • Emulation,

Pierre Sens (LIP6)

  • Network,

Pascale Primet (LIP, Inria RESO)

  • Applications.

Christophe Cérin (Laria)

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X II.16 Grid coupled sys. X X X II.15 NG. Internet X X X II.14 Security X X X II.13 Reliability (adversary) X X II.12 P2P storage X II.11 Bioinformatique X X II.10 Cellul. automaton X X II.9 Uni and multicast X X II.8 Data sharing X II.7 Comm. Optimizat. X X II.6 Scheduling X X II.5 Data base X II.4 DHT X X II.3 Fault tolerance X X II.2 Mobile objects X X X II.1 Engineering tech. X X X I.8 Internet Emul. X I.7 Communication X I.6 Heterogeneity emul X X X I.5 Network emul. X I.4 Emul driven Simul X X I.3 Virt. Techniques X X I.2 Virtual Grid X X X X I.1 Platform Application Network Emulation Infrastructure Experiences

Grid'5000 and Grid eXplorer

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Grid’5000 Budget: 754 000 € TTC (Procédure lancée Lundi 5 Avril). Tranche ferme : environ 400 processeurs (200 nœuds) Tranche conditionnelle 1 : réseau haute performance (Myrinet ou Infiniband) Tranche conditionnelle 2 : augmentation du nombre de processeurs Financements complémentaires : Grid’5000 2004, INRIA ~ 450 K€ TTC Détails tranche ferme :

  • Nœuds de calcul :

~ 400 processeurs (Opteron 2Ghz ou Xeon 64 bits à 3,6 Ghz)

  • Nœuds réseaux :

~ 32 nœuds monoprocesseurs (IA32 à 3Ghz)

  • Nœuds frontaux :

2 nœuds (biprocesseurs Opteron ou Xeon 64 bits, 1 To de disque)

  • Réseau :

Commutateur Gigabit/ s (avec bande passante minimale de 125 Mbits par processeurs)

Matériel

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Grid’5000 Question de faisabilité technique : exécuter 100 PC virtuels sur 1 PC réel

  • 10 K PCv sur 100 CPUs (LRI), 100K PCv sur 1K CPUs (GdX),

~ 1M PCv sur (Grid5000) Non temps réel Etude de Vserver : www.linux-vserver.org

(virtual host bsd)

Principe pour n PCv: 1 seul noyau (drivers), n root file systems, z processus (z> n) La table des processus « inclut » un champ supplémentaire « PCv »

Emulation dans GdX

/ vserver/ vs1/ … / vserver/ vs2/ …

Root dir pour chaque Vserver

1 noyau driver Processus PCv1 Processus PCv2 Overhead de Vserver ? Le scheduleur équité entre les PCv ?

Parties communes Parties spécifiques

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Grid’5000 Question de faisabilité technique : exécuter 100 PC virtuels sur 1 PC réel 10 K PCv sur 100 CPUs (LRI), 100K PCv sur 1K CPUs (GdX), ~ 1M PCv sur (Grid5000) Non temps réel Problème : pas assez d’adresses routables adresses privées NAT ou Vtun : vtun.sourceforge.net (tunnels virtuels par-dessus TCP/ IP) Vtun implémente un « Vlan » entre Vservers de PC différents

Emulation dans GdX

noyau driver NIC

129.175.7.124 192.168.100.2 192.168.100.99

Overhead de Vtun ou NAT ? Equité ??? devra être vérifiée dans GdX Eth0 : device tun0 :

192.168.100.1

Un Vserver a une adresse IP noyau driver NIC

129.175.7.125 192.168.200.2 192.168.200.99

Eth0 : device tun0 :

192.168.200.1

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SLIDE 24

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Grid’5000 Question de faisabilité technique : exécuter 100 PC virtuels sur 1 PC réel 10 K PCv sur 100 CPUs (LRI), 100K PCv sur 1K CPUs (GdX), ~ 1M PCv sur (Grid5000) Non temps réel

  • Problème : Emulation de la topologie (plusieurs tunnels) et des perfs

réseaux (Dummynet et NistNet)

Emulation dans GdX

noyau driver NIC DummyNet NistNet Modifiés ?? Toujours les questions d’overhead et d’équité noyau driver NIC

129.175.7.124 192.168.100.2 192.168.100.99

Eth0 : device tun0 :

192.168.100.1

Un Vserver a une adresse IP Où placer DummyNet ou Nistnet ?

  • > sur un Vserver ???

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Grid’5000 Question de faisabilité technique : exécuter 100 PC virtuels sur 1 PC réel 10 K PCv sur 100 CPUs (LRI), 100K PCv sur 1K CPUs (GdX), ~ 1M PCv sur (Grid5000)

Emulation dans GdX

Imaginons que ce soit techniquement faisable : Validation ? (méthode : quels paramètres mesurer, quels tests, etc.) Facteur de ralentissement par rapport au temps réel ? (variation dynamique ? Compréhension de l’impact de chaque brique: Vserver, Vtun, Dummynet/ NistNet ?, etc.)

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SLIDE 25

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Grid’5000 Grid eXplorer and Grid’5000

interactions

Design Test/Check

Validation under Real Life Conditions Grid’5000

Design Test/Check

Validation of Scalability and under Synthetic Conditions Grid eXplorer

Integration to standard middleware, Deployment, Performance Scalability, Fault tolerance

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Grid’5000

Summary

  • Researches in Grid and P2P need large scale platforms

– To study protocols, systems, middleware, programming models and applications in real life OR reproducible experimental conditions

  • Grid’5000 and Grid eXplorer
  • Will be experimental platforms for Grid& Network researchers

(like particle accelerator for physicists)

  • A nation wide platform and a large scale emulator
  • Strong relations between this two projects (researchers are the

same persons for the two projects)

  • Hardware should be installed by November 2004
  • Prototypes (security and control) should work for November 2004
  • Might be opened for experiments in early 2005
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Grid’5000

Q&A