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XtremWeb

XtremWeb. Platforma Open Source pentru Desktop Grid Dedu Catalin. ce este grid?. GRID: O paradigma computationala Uneste resursele unui mai multor noduri eterogene . Noduri din acelasi LAN sau domenii diferite . XtremWeb : Sunt efectuare taskuri noninteractive , paralele

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XtremWeb

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  1. XtremWeb Platforma Open Source pentru Desktop Grid DeduCatalin

  2. ceeste grid? GRID: • O paradigmacomputationala • Unesteresurseleunuimaimultornodurieterogene. • Noduri din acelasi LAN saudomeniidiferite. XtremWeb: • Suntefectuaretaskurinoninteractive, paralele • Unestenoduri din Lansau de pe Internet

  3. XtremWeb • Creeaza un grid pebazastatiilor de lucru locale sau ale utilizatorilorvoluntari de pe Internet. • Rezolvaproblemestiintificecomplexe • Ocupa CPU candacesta e in modul Idle. • ArhitecturaGenerala: Client Worker siCoordonator

  4. Arhitectura • Clientul face un job request catreCoordonator • Coordonatorulimpartejoburilecatreworkeri • WorkeriitrimitrezultatelecatreCoordonator • de multeoriClientul = worker

  5. Arhitectura(2) • Model folosit in aplicatiile online de schimb de fisiere audio P2P. • Aplicatiile de prelucraresuntdescarcatepe worker • Este recomandatfolosireaaplicatiilor “trusted” • Urmatorul release cuprindesimecanisme de securitatea a workerilor

  6. Arhitectura(3) Sursa: Xtremweb developer blog

  7. instalare • Descarcare de la http://www.xtremweb.net/ - paginaoficiala • XW se instaleazape un server dedicat de Unix • Preinstalari: -Server Mysql - Java environment JDK 1.4 - Server Apache cu un user dedicat

  8. Instalare(2) • Se face build la surse : configuramfisierul /build/build.conf • Instalareaefectiva: • make - compileazasursele; genereaza .class si .jar • make install – instaleazafisierele jar • makeinstallDB – instaleazabaza de date XW sipovray ca demo .

  9. Instalare (3) • Se continua cu instalareaserverului , clientuluisi a workerului. • Workerul e compatibil cu Linux MacOS X si Win32. • Ghid de instalare : https://svn.lal.in2p3.fr/projects/XWHEP/tags/1.0.23/doc/xtremweb.html

  10. Configurare • Server: conf/xtremweb.server.conf • Parametrii : Homedir, XWServers, port.rmi.main, port.rmi.server, port.rmi.client, port.tcp etc • Baza de date: XWdbHost, XWName, XWdbUser, XWdbPass • Securitate : setTrusted ,XWkeyStore , XWpassPhrase

  11. Configurare(2) • Worker: activator.date – data siora la care se activeazaworkerul worker.cpuload- Incarcareaporcesorului la care workerulinceteazasamaifunctioneze Worker.screenSaverActivator – workerulincepeprocesarea in momentul in care screen- saverulesteactivat.

  12. Rulare • Server: bin/xtremweb.server xtremweb.server start -porneste ca daemon console – pornesteconsolaserverului stop / restart – opreste , restarteazaserverul Client : xtremweb.client [ start|stop|console] Worker: xtremweb.worker [ start|stop|console]

  13. Rulare(2) • Client – comenzi : job – listeazatoatejoburilece se executa job UID – returneazastatusul

  14. Exempleaplicatii: • platforma P2P cum e P2P Povray (aplicatie de renderizare) • Voluntar in proiectul P2P Global Computing • Colaborator/dezvoltator in proiectulXtremWeb • Construireauneiplatforme “general purpose”

  15. ExemplurularePovray • Submitareajobului • xwsubmit --xwzipfile scene.zip PovRay +W640 +H480 -Idesk.pov returneaza job ID-ul • xwstatus <JobID> returneazastatusuljobului • ( INQUEUE,RUNNING, COMPLETE) • xwresult <JobID> returneazarezultatele in fisierul /<aplicatie>_<job_id> • xwrm <JobID>Stergejobulsiobiecteleasociate

  16. Intrebari ? • ? ? ? ?

  17. Bibliografie: • Siteuloficialxtremweb : http://www.xtremweb.net/ • Site-ul de download :https://gforge.inria.fr/frs/?group_id=1090 • Ghidul de instalaresirulare : https://svn.lal.in2p3.fr/projects/XWHEP/tags/1.0.23/doc/xtremweb.html

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