grid’5000 grid explorer - centralesupelec · • gridsim • australian competitor of simgrid ......

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Grid'5000 and Grid eXplorer 1GdXGdXGrid’5000

Grid Grid eXplorereXplorer&

Franck CappelloINRIA

[email protected] tous les membres participants

Plates-formes de Grilles expérimentalesmutualisées à l’échelle nationale

ACI GRID & ACI MD

Grid’5000

ACI Masse de DonnéesACI GRID


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 reallife or real size conditionsProduction platforms have strong difficulties to reproduce experimental conditions

How to test and compare?• Fault tolerance protocols• Security mechanisms• Networking protocols• etc.

Grid experimental platformsrational


log(cost)

log(realism)

math simulation emulation live systems

Models:Sys, apps,Platforms,conditions

Real systemsReal applicationsReal platformsReal 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 systemsReal applications“In-lab” platformsSynthetic conditions

Key system mecas.Algo, app. kernelsVirtual platformsSynthetic 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.


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

àNo emulator or real life experimental platformàThese tools do not scale (limited to ~100 grid nodes)àThey do not consider the network issues (almost)

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log(cost)

log(realism)


SimGridMicroGridBricksNS, etc.Model

Protocol proof

Grid eXplorerWANinLabEmulab

Grid’5000TERAGridPlanetLabNaregi Testbed

We need Grid experimental toolsAccording to the current knowledge:There is no large scale testbed dedicated to Grid experiments

à Grid’5000 as a real life systemà Grid eXplorer as a large scale emulator

Grid'5000 and Grid eXplorer 8GdXGdXGrid’5000Grid’5000A New Generation of Research Tools

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Grid'5000 and Grid eXplorer 9GdXGdXGrid’5000 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


Netbed (Emulab)Comme « Modelnet »

Description de la topologie => NS scriptUtilisation de DummynetOutils de Mapping routeur_logique => machine physiqueUtilisation du simulateur NSE (ns emulation)Utilisation de noeuds exterieurs client (40 DSL)

3 Sites

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GNET-1


1) Remotely controllable Grid nodes installed in geographically distributed laboratories

2) A « Controllable » and « Monitorable » Network between theGrid nodes à (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


1) Building a nation wide experimental platform for Grid researches (like a particle accelerator for the computerscientists)• 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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Grid'5000 and Grid eXplorer 15GdXGdXGrid’5000 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 BarbetPierrette BarbarescoNicolas CapitEddy CaronChristophe CérinOlivier CoulaudGeorges Da-CostaYves DenneulinBenjamin DexheimerAurélien DumezGilles Gallot David GeldreichSébastien GeorgetOlivier Gluck Claude InglebertJulien LeducCyrille MartinJean-Francois MéhautJean-Christophe MignotThierry MonteilGuillaume MornetAlain NaudVincent NériGaetan PeaquinFranck SimonSebastien VarretteJean-Marc Vincent

Comité Techniqueétendu (28) :

Grid’5000

Forums:Deployment/exploitation: Franck Cappello (AS1, RTP8)Programming models:Raymond Namyst (AS2, RTP8)


www.grid5000.org

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Grid'5000 and Grid eXplorer 18GdXGdXGrid’5000Grid’5000 in November’2004

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

Grid 5000 nodes

à Connexion des sites à 1 Gbits3

Grid eXplorerPau

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

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Grid’5000 Hardware

Call for proposals

Sept03

Selection of 7 sites

Nov03

ACI GRIDFunding

Jan04

Call for ExpressionOf Interest

March04

Vendorselection

Jun/July 04

Instal.First tests

Spt 04

Final review

Oct 04

FisrtDemo(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

SwitchProto toGrid’5000

Grid’5000


Summary of Grid5000 experimentsof 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 and Grid eXplorer 21GdXGdXGrid’5000 Grid’5000 Design goal:

Experimenting all layers of the Gridsoftware stack

Algorithms

Runtime

Middleware

Operating System

Programming Environments

Networking

Application

Grid'5000 and Grid eXplorer 22GdXGdXGrid’5000 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 à

rsh, etc. fonctionnelles, possibilité de tester NFS, etc.)àTester les exécutifs et les applications sans interférence

vis-à-vis de la sécurité (isolation des phénomènes)

• 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?)

à 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

Grid'5000 and Grid eXplorer 24GdXGdXGrid’5000 Architecture for Grid’5000 prototype

(adressage privé)

Switch Grid

controleur

LABO

Routeur RENATER

MPLS

vlans

Firewall/nat

Switch/routeur labo

Front-endlocal

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/natFirewall/nat = 2 interfaces, redirige accès port 22 vers front-end-local

Cluster banaliséAdresses privées

RENATER

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Control commands

Lab’sNetwork

LAB/FirewallRouter

Test Cluster

ControlMaster

Site 1

Site 2

Site 3

Users(ssh loggin

+ password)

Firewall/nat

ControlSlave

Test Cluster

Boot server + dhcp

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

ControlSlave

user site

Grid’5000 prototype (Control)

System kernels and distributionsare downloaded from a boot server.They are uploaded by the users assystem images.

Grid'5000 and Grid eXplorer 26GdXGdXGrid’5000 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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Grid'5000 and Grid eXplorer 27GdXGdXGrid’5000 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 of 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


• 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


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


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 CoreGridresearchers (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)


log(cost)

log(realism)


SimGridMicroGridBricksNS, etc.Model

Protocol proof

Grid eXplorer

Grid’5000

Grid’5000 + Grid eXplorerCombining two Grid research instruments

Relax RealLife Conditions

Relax ConditionsReproducibility

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Grid'5000 and Grid eXplorer 35GdXGdXGrid’5000 Grid eXplorer

Analogy with physic instruments

Measurement units

ExperimentalConditions database/injector

1k Cpu Emulator

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


Grid experiments undersynthetic 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

GridGrideXplorereXplorer

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Big picture

An experimentalconditions data base

Emulator CoreHardware + Soft:Emulation &Simulation

A set of toolsfor analysis

A set of sensorsin Grid’5000(Renater)

Validation onGrid’5000

Emulab cluster


Funding plan

Secured:ACI Masse de données: 750 K€ TTC ACI Grid’5000 2004 : 155 K€ TTCINRIA Rocquencourt: 150 K€ TTCINRIA Futurs: 150 K€ TTC

Submitted:SESAME Ile de France: 900 K€ TTCASTRE 2005: 300 K€ TTC

à1.2 M€ securedàPossibly 2,4 M€ in total.

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Architecture objectivesEmulation of 1) large scale distributed systems2) 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


IRISA, Institut de Recherche en Informatique et Systèmes Aléatoires

CEA, Direction des Technologies de l'Information (Saclay)

IBCP (UMR5086), Institut de Biologie et Chimie des Protéines

LABRI (UMR 5800), Laboratoire Bordelais de Recherche en Informatique

LIP6 (UMR 7606), Laboratoire d'Informatique de Paris 6

INRIA Sophia Antipolis, UNSA, I3S-CNRS

LIFL (ESA 8022), Laboratoire d’Informatique Fondamentale de Lille

LIP-ENS Lyon (URM 5668), Laboratoire de l'Informatique du Parallélisme

LORIA (UMR 7503), Laboratoire lorrain de recherche en informatique et sesapplications

LAAS-CNRS (UPR 8001), Laboratoire d'Analyse et d'Architecture des Systèmes

LRI (UMR 8623), Laboratoire de Recherche en Informatique, Université de Paris-sud

LaRIA (UPRES EA 2083), Laboratoire de Recherche en Informatique d’Amiens, Université de Picardie Jules Verne

IMAG, ID (UMR 5132), Laboratoire d’Informatique et Distribution, Université de Grenoble

ACI Masse de Données DGdX13 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 CachanAntenne 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)


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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XII.16 Grid coupled sys.XXXII.15 NG. Internet

XXXII.14 SecurityXXXII.13 Reliability (adversary)XXII.12 P2P storageXII.11 BioinformatiqueXXII.10 Cellul. automaton

XXII.9 Uni and multicastXXII.8 Data sharing

XII.7 Comm. Optimizat.XXII.6 SchedulingXXII.5 Data base

XII.4 DHTXXII.3 Fault tolerance

XXII.2 Mobile objectsXXXII.1 Engineering tech.

XXXI.8 Internet Emul.XI.7 Communication

XI.6 Heterogeneity emulXXXI.5 Network emul.

XI.4 Emul driven SimulXXI.3 Virt. Techniques XXI.2 Virtual Grid

XXXXI.1 PlatformApplicationNetworkEmulationInfrastructureExperiences


Budget: 754 000 € TTC (Procédure lancée Lundi 5 Avril).Tranche ferme : environ 400 processeurs (200 nœuds) Tranche conditionnelle 1 : réseau haute performance (Myrinet ouInfiniband)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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Question de faisabilité technique : exécuter 100 PC virtuels sur 1 PC réelà 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 à équité entre les PCv ?

Parties communesParties spécifiques


Question de faisabilité technique : exécuter 100 PC virtuels sur 1 PC réel10 K PCv sur 100 CPUs (LRI), 100K PCv sur 1K CPUs (GdX),~1M PCv sur (Grid5000) Non temps réel

à Problème : pas assez d’adresses routables à adresses privéesNAT 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

NIC129.175.7.124

192.168.100.2 192.168.100.99

Overhead de Vtun ou NAT ?Equité ??? à devra être vérifiée dans GdX

Eth0 :

devicetun0 :

192.168.100.1

Un Vservera une adresse IP

noyau

driver

NIC129.175.7.125

192.168.200.2 192.168.200.99

Eth0 :

devicetun0 :

192.168.200.1

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Question de faisabilité technique : exécuter 100 PC virtuels sur 1 PC réel10 K PCv sur 100 CPUs (LRI), 100K PCv sur 1K CPUs (GdX),~1M PCv sur (Grid5000) Non temps réel

à Problème : Emulation de la topologie (plusieurs tunnels) et des perfsréseaux (Dummynet et NistNet)

Emulation dans GdX

noyau

driver

NIC

DummyNetNistNetModifiés ??

Toujours les questions d’overhead et d’équité

noyau

driver

NIC129.175.7.124

192.168.100.2 192.168.100.99

Eth0 :

device tun0 :192.168.100.1

Un Vservera une adresse IP

Où placer DummyNet ou Nistnet ?-> sur un Vserver ???


Question de faisabilité technique : exécuter 100 PC virtuels sur 1 PC réel10 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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Grid'5000 and Grid eXplorer 49GdXGdXGrid’5000 Grid eXplorer and Grid’5000

interactionsDesign

Test/CheckValidation under

Real Life ConditionsGrid’5000

DesignTest/Check Validation of

Scalability and underSynthetic Conditions

Grid eXplorer

Integration to standard middleware, Deployment,

Performance

Scalability, Fault tolerance


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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Q&A

grid’5000 grid explorer - centralesupelec · • gridsim • australian competitor of simgrid ......

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