Alice India - Department of Theoretical Physics

Middleware Services in AliEnGASWMDMRBTQFPSFQPMACEFCJWJALRCLJCSECESRMCRGrid Access Serv iceWorkload MgmtData MgmtResource BrokerTask QueueFile Placement Serv iceFile Transfer QueuePackage ManagerAliEn CE (pull)File CatalogueJob WrapperJob AgentLocal Replica CatalogueLocal Job CatalogueStorage ElementComputing ElementStorage Resource MgrComputing Resource(LSF, PBS,…)CR(LSF,..)ACECEWMGASDMTQgLiteFTQMiddlewarePMServicesLJCAPIJW(JA)LRC• Many OS components dealing with Grid issues• Why not build the minimal GRID that does the job?– Fast development of a prototype, no problem inexploring new roads, restarting from scratch etc etc– Hundreds of users and developers for the modules– Immediate adoption of emerging standardsFCSESRM• AliEn (5% of codedeveloped, 95%imported)12/8/05 Subhasis Chattopadhyay 22