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ShipDesignOptimization

ThiscontributionisdevotedtoexploitingtheanalogybetweenamodernmanufacturingplantandaheterogeneousparallelcomputertoconstructaHPCNdecisionsupporttoolforshipdesigners.TheapplicationisaHPCNonebecauseofthescaleofshipbuilding-alargecontainervesselisconstructedbyassemblingabout1.5millionatomiccomponentsinaproductionhierarchy.Theroleofthedecisionsupporttoolistorapidlyevaluatethemanufacturingconsequencesofdesignchanges.Theimplementationasadistributedmulti-agentapplicationrunningontopofPVMisdescribed

1AnalogiesbetweenManufacturingandHPCN

Thereareanumberofanalogiesbetweenthemanufactureofcomplexproductssuchasships,aircraftandcarsandtheexecutionofaparallelprogram.Themanufactureofashipiscarriedoutaccordingtoaproductionplanwhichensuresthatallthecomponentscometogetherattherighttimeattherightplace.Aparallelcomputerapplicationshouldensurethattheappropriatedataisavailableontheappropriateprocessorinatimelyfashion.

Itisnotsurprising,therefore,thatmanufacturingisplaguedbyindeterminacyexactlyasareparallelprogramsexecutingonmulti-processorhardware.Thishascausedanumberofresearchersinproductionengineeringtoseekinspirationinotherareaswheremanagingcomplexityandunpredictabilityisimportant.Anumberofnewparadigms,suchasHolonicManufacturingandFractalFactorieshaveemerged[1,2]whichcontainideasratherreminiscentofthosetobefoundinthefieldofMulti-AgentSystems[3,4].

Manufacturingtasksareanalogoustooperationscarriedoutondata,withinthecontextofplanning,schedulingandcontrol.Also,complexproductsareassembledatphysicallydistributedworkshopsorproductionfacilities,sothecomponentsmustbetransportedbetweenthem.Thisisanalogoustocommunicationofdatabetweenprocessorsinaparallelcomputer,whichthusals