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Introduc)ontotheEnvironmentalCompu)ngWorkshop@ISGC2016
DieterKranzlmüllerMunichNetworkManagementTeamLudwig-Maximilians-UniversitätMünchen(LMU)&LeibnizSupercompuFngCentre(LRZ)oftheBavarianAcademyofSciencesandHumaniFes
FlashFloodGenoa,Italy,2011
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hXp://www.drihm.eu/images/video/DRIHM_final.mp4
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FlashFloods
n Formswi_lydueto(extremely)highrainfallrates
n LiXleornopriorwarning
n DevastaFngconsequences(casualFes,economiclosses,...)
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UNISDR–TheUnitedNa)onsOfficeforDisasterRiskReduc)on
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hXps://www.unisdr.org/
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GAR–GlobalAssessmentReportonDisasterRiskReduk)on2015
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hXp://www.prevenFonweb.net/english/hyogo/gar/2015/en/home/GAR_2015/GAR_2015_6.html
NumberofDisastersperRegion
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hXp://www.emdat.be/disaster_trends/index.html
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MunichRe–LossEventsWorldwide2014
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hXp://www.prevenFonweb.net/files/41773_munichreworldmapnaturalcatastrophes.pdf
MunichRe–LossEventsWorldwide2014
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hXp://www.prevenFonweb.net/files/41773_munichreworldmapnaturalcatastrophes.pdf
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FlashFloods
n Formswi_lydueto(extremely)highrainfallrates
n LiXleornopriorwarning
n DevastaFngconsequences(casualFes,economiclosses,...)
n MonitoringandforecasFngoffloods:– EuropeanFloodAwarenessSystem(EFAS)– GlobalFloodDetecFonSystem(GFDS)– GlobalFloodAwarenessSystem(GloFAS)
n Problem:spaFalresoluFon50-100kmèFlashfloodsremainundetected
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TheEUProjectSeriesDRIHM*
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PossibleSolu)on–EnvironmentalCompu)ng
n Combinemeteorology,hydrology,hydraulicsthroughcomputerscience
n IncreasespaFalandtemporalresoluFon(dataquality)– RegionalClimateModels(RCM)
n ComputeensemblesofforecaststocoverallpotenFaloutcomes
n StartandfinishcomputaFoninFmetoprovideleadFmeforevacuaFonmeasures
è Simulateensemblesofforecastswithhigh-resolu)onon
high-performancecompu)ng(HPC)infrastructuresondemandwhentriggeredbyincreasedrainfallrates
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AgendaofEnvironmentalCompu)ngWorkshop
SessionIn IntroducFontotheWorkshop
(DieterKranzlmüller)n Keynote:ResearchCenterfor
EnvironmentalChanges(Huang-HsiungHsu)
SessionIIn TheBigPicture(Mak
Heikkurinen)n DMCC(EricYen)n MekongDelta(NamThoai)n EnvironmentalExascale
CompuFng(DieterKranzlmüller)
SessionIIIn LandUseDevelopment
SimulaFonSystems(Feng-TyanLin)
n ApplicaFonofnumericalmodelonextremeweatherandenvironmentalstudies(Chuan-YaoLin)
n TheApplicaFonsofAdvancedNumericalSimulaFonontheTsunamiandFloodingHazardMiFgaFon(Tso-RenWu)
SessionIVPanelandDiscussion
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TheEUProjectSeriesDRIHM*
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LeibnizSupercompu)ngCentreoftheBavarianAcademyofSciencesandHumani)es
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Withapprox.230employeesformorethan100.000studentsandformorethan30.000employeesincluding8.500scienFsts
• EuropeanSupercompuFngCentre• NaFonalSupercompuFngCentre
• RegionalComputerCentreforallBavarianUniversiFes• ComputerCentreforallMunichUniversiFes
Photo:ErnstGraf
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LeibnizSupercompu)ngCentreoftheBavarianAcademyofSciencesandHumani)es
n EuropeanSupercompuFngCentre
n NaFonalSupercompuFngCentre
n RegionalComputerCentreforallBavarianUniversiFes
n ComputerCentreforallMunichUniversiFes
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SGI UV
SGI Altix
Linux Clusters
SuperMUC
Linux Hosting and Housing
SuperMUC@LRZ
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Video: SuperMUC rendered on SuperMUC by LRZ
hXp://youtu.be/OlAS6iiqWrQ
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Top500SupercomputerList(June2012)
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www.top500.org
LRZSupercomputers
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SuperMUCPhaseII
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SuperMUC Phase 1 + 2
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SuperMUCSystem@LRZ
Phase2(LenovoNeXtScaleWCT):
• 3.6PFlopspeakperformance• 3072LenovoNeXtScalenx360M5WCT
nodesin6computenodeislands• 2IntelXeonE5-2697v3processorsand64
GBofmemorypercomputenode• 86,016computecores• NetworkInfinibandFDR14(fattree)
CommonGPFSfilesystemswith10PBand5PBusablestoragesizerespecFvelyCommonprogrammingenvironment
Directwarm-watercooledsystemtechnology
Phase1(IBMSystemxiDataPlex):
• 3.2PFlopspeakperformance• 9216IBMiDataPlexdx360M4nodesin18
computenodeislands• 2IntelXeonE5-2680processorsand32
GBofmemorypercomputenode• 147,456computecores• NetworkInfinibandFDR10(fattree)
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LRZ Application Mix
n Computational Fluid Dynamics: Optimisation of turbines and wings, noise reduction, air conditioning in trains
n Fusion: Plasma in a future fusion reactor (ITER) n Astrophysics: Origin and evolution of stars and galaxies n Solid State Physics: Superconductivity, surface properties n Geophysics: Earth quake scenarios n Material Science: Semiconductors n Chemistry: Catalytic reactions n Medicine and Medical Engineering: Blood flow, aneurysms, air
conditioning of operating theatres n Biophysics: Properties of viruses, genome analysis n Climate research: Currents in oceans
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TheEUProjectSeriesDRIHM*
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KeyGaps
(asobservedduringtheDRIHMproject)
n Technicalinteroperabilityandportability– Models– Dataformats– ExecuFonenvironments– Metadatadescribingthem
n SemanFcs
n Workflowslinkingalloftheabovetogether– Pre-DRIHMhydrometeorologicalmodelchainwouldhavetakenweeksof
manualintegraFonwork– Despitethefactthatwebservicesandsciencegatewaysareavailable
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Ac)onableKnowledge
HowwecouldhaveusedtheinformaFonifitwasavailablebeforehand?HowcouldweuFlizetheoutcomesofenvironmentalcompuFngforsocietey?
n LinkswithcivilprotecFon
n Risksduetoadisasterwithacertainprobabilityvs.certainrisksrelatedtoevacuaFon– Falsealarms?Wedon’twanttobethe“computerthatcriedflood”– Therearerulesregardinghowmuchofalead-FmewarningthepopulaFon
needs(30minutesbeforewouldjusttriggerchaos,makesocietymorevulnerable
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Communica)ngtheResults
Howcannon-scienFstsusetheinformaFon?
n CivilprotecFonmodelprobablyfairlywell-established(“client”isusedtodatawithcertainuncertaintybuiltin)
n RiskreducFon:needtoanswerquesFonsrelatedtolong-terminfrastructuredevelopmentprojectsandpolicyformaFon– InjecFnguncertaindataintopoliFcalprocess!!– Dealingwithfinancialinterestsunavoidable:protecFoninfrastructurein
itself,impactondevelopment:• Nobuildingpermitsonflood-proneareas,housingdevelopersnothappy• Re-classifyingexisFnghousing,houseownersnothappy(losefloodinsuranceorincreaseinpremiums)
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AnalyzeSimula)onResults
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EnvironmentalCompuFng@LRZ
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Summary
n Wearetalkingaboutanissuewithconsiderablesocioeconomicimportance
n UNISDRdatare.costsofdisasters
n DisasterriskreducFonisnotcheapeither(UKdataregardingneedforflooddefences)
n TherewillbegrowingdemandforenvironmentalcompuFng,e.g.throughSendaiFramework,development,anyiniFaFveworkingonsocietalresilience
n WefocusedonfloodingasstarFngpoint,butthereareotherrisks
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Wrap-UpandGoalofWorkshop
TherearemanyacFviFesaddressingsomeofthegapsidenFfied,
butwearenotawareofeffortstolookintoalloftheminacoherentmanner
Thegoalofthisworkshopistotrytocapture,structureandconceptualisethisverybroadscopeinawaythatweallcanwork
togetherandcommunicatejointresultsmoreefficiently
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Environmental Computing Workshop @ ISGC 2016
Dieter Kranzlmüller [email protected]
Photo:KarlBehler