mainframeshdchina.org
hdchina.org 时间:2021-01-18 阅读:()
nanoHUB.
org2/3/20061onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureAnOverviewofVirtualizationTechniquesRenatoFigueiredoAdvancedComputingandInformationSystems(ACIS)ElectricalandComputerEngineeringUniversityofFloridaNCN/NMITeamnanoHUB.
org2/3/20062onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureOutlineResourcevirtualization:MotivationsandtechniquesVirtualMachines:past,present,futureApplicationsinGridComputingnanoHUB.
org2/3/20063onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructurePhysicalcomputerProcessor,memory,andI/OHarddiskandnetworkinterfacesarekeycomponentsoftheI/OsubsystemProcessorrunsinstructions.
Memoryholdsdataforfastoperation.
Diskholdsdatainpersistentstate(files,directories).
NetworksupportscommunicationnanoHUB.
org2/3/20064onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualComputerAvirtualcomputerhasthesame"lookandfeel"asaphysicalcomputerVirtualprocessor,virtualmemory,virtualdiskandvirtualnetworkcardCanrunexactlythesamesoftware(e.
g.
Windows,Linux)Butmultiplevirtualcomputerscantime-shareasinglephysicalcomputer!
LinuxWinXPNetBSDPhysicalmachineVirtualmachinesnanoHUB.
org2/3/20065onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualMachinesCapableofrunningfull-blownO/SwithinVM"guest"VMwareXenMicrosoftVirtualPCSupportlegacysoftwareAdvantageoverJavaVM,C#CLRVM"Host"VM"Guests"nanoHUB.
org2/3/20066onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureWhyvirtualComputersMotivationsResourcesharingandconsolidation;securityandisolationFamiliarexample:virtualmemoryinmulti-taskO/SsPhysicalmemorysharedbymultipleprocesses;eachprocesshasitsown,independentaddressspaceEaseofmanagementVirtual(software)vs.
physical(hardware)Copying,migration,archival,versioningVirtualizationaddsanextralayerofsecurityandisolationAusercan"crash"orrebootaVMwithoutcompromisingitshost,orotherVMsVMisnotnearlyascomplexasO/SBecausetheyaresmallerandsimpler,theyareharderto'hack'thananO/SDiscoVM:50KlinesofcodeIRIXO/S:millionsoflinesnanoHUB.
org2/3/20067onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualMachines-VMs"Classic"VMsTechnologytracesbacktotheearly70sLegacyO/SswhichwouldshareexpensivemainframesIBM370-zSeriesVirtualmachinedefined:"Asystem…which…isahardware-softwareduplicateofarealexistingmachine,inwhichanon-trivialsubsetofthevirtualmachine'sinstructionsexecutedirectlyonthehostmachine…"[Goldberg,1971]nanoHUB.
org2/3/20068onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureArchitectureofVMsHowareVMsimplementedCore:virtualmachinemonitor(VMM)softwarePresentsillusionofmachineduplicatetoothersoftwarerunningontopofitVirtualizationoperatesatthe(low)levelofindividualprocessorinstructionsCan"boot"existingoperatingsystems,rununmodifiedapplicationsontopofVMKeyinsighttoachievegoodperformance:RunmostinstructionsdirectlyonhardwareDSameperformanceaswithoutaVMMEmulatefewinstructionsthatrequirespecialhandlingDVirtualizationoverheadnanoHUB.
org2/3/20069onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureExample-performanceExamplequantifyingvirtualizationoverheadfortypicalCPU-intensivescientificapplicationsSpecHPCbenchmarksExperimentalsetup:Physical:dualPentium-III,933MHz,512MBmem,RedHat7.
1,SMPkernelVirtual:VMwareworkstation,128MBmem,RedHat7.
1uniprocessorkernelNativeVMOverheadSPECseis14806s14946s1.
0%SPECclimate9304s9693s4.
2%nanoHUB.
org2/3/200610onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructurePerformanceOverheadscanbelargerwithdiskI/O,networkactivityXenVMMachievesnear-nativeperformanceCPUCPU+I/OCPU+I/O+netBarhametal,"XenandtheArtofVirtualization",SOSP2003nanoHUB.
org2/3/200611onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualmachinesoftwareSeveralmaturevirtualizationproductsnowavailablefortypicaldesktopsandservers;hereisabriefoverviewVMwarePioneerofproductsbringingVMstoIntel-baseddesktopsandserversProductsWorkstationDEasytoinstallanduse;goodperformanceandseveralfeaturesPlayerDFree!
Can"play"VMscreatedbyWorkstationandESXGSXD"Group"server;moremanagementtoolsESXDEnterpriseserver;higherperformance,severalmanagementfeatures,advancedschedulingFormoreinformationanddownloads:http://www.
vmware.
comnanoHUB.
org2/3/200612onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualmachinesoftwareMicrosoftAcquiredstart-up(Connectix)andaddedVMstoitslineofproductsPlanstohaveVMsupportaspartoffuturereleasesofWindowsVirtualPCAkintoVMware'sworkstation.
CanrunVMwareVMs(andvice-versa)Unlikeworkstation,doesnotrunontopofLinuxCanrunIntel-basedVMs(e.
g.
Windows)onPowerPC-basedMacsVirtualServerAkintoVMware'sGSXserverFormoreinformation:http://www.
microsoft.
com/Windows/virtualpc/default.
mspxhttp://www.
microsoft.
com/windowsserversystem/virtualserver/default.
mspxnanoHUB.
org2/3/200613onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualmachinesoftwareXenOpen-sourceVMinitiallydevelopedatCambridgePackaginganddistributionnowhandledbystart-upcompanyXenSourceDesignedtoachievehighperformance"Para-virtualization"techniquestoreducevirtualizationoverheadButpara-virtualizationrequiresoperatingsystemstobemodifiedbeforetheyrunonXenTypically,XenrunsLinux,FreeBSDorNetBSDWithnewIntel/AMDprocessors,XenisbeginningtosupportunmodifiedoperatingsystemsFormoreinformationanddownloads:http://www.
xensource.
comnanoHUB.
org2/3/200614onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualmachinesoftwareParallelsWorkstationLow-costVMComparabletoVMwareworkstation,WindowsVirtualPCRunsonbothWindowsandLinuxServer,Enterpriseserver:due2006Formoreinformationanddownloads:http://www.
parallels.
comnanoHUB.
org2/3/200615onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureHardwaresupportMuchofthevirtualizationoverheadtodayareduetoprocessorsnotbeingdesignedwithvirtualizationinmindSeminalpaperbyPopek,Goldberg(1974)providesbasicguidelinesEfficientVMMcanbedesignedif:1.
Processorhasprotectionmechanisms,and2.
Privilegedinstructionsthatread/writesystemstatusmustcauseexceptionsifrunatnon-privilegedlevelModernmicroprocessorssupportprotection(condition1)However,secondconditionrarelysatisfiedDE.
g.
Intel'x86':17problematicinstructionsToday,VMsmustuseseveralsoftware'tricks'tocircumventproblematicinstructionsinprocessorssuchasIntel/AMDTomorrow:processorshavebeen/arebeingredesignedtosupportmoreefficientVMsIntelVTindual-core"Yonah";AMD"Pacifica"nanoHUB.
org2/3/200616onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureBeyondasinglehostOnevirtualmachineSinglephysicalmachine(uni/multi-processor);multipleconcurrentO/SsVMmonitors(VMware,Xen)virtualizelocaldevicesInterconnectedVMsEmergingapplicationsnotconsideredinearlyVMdaysHowtovirtualizenetworkingandremotestorageaccessHowtoschedule,manageVMsbeyondlocalareanetwork(LAN)domainboundariesnanoHUB.
org2/3/200617onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureApplicationsinGridcomputingGoal:harnesscomputingpowerofdistributeddesktops,servers,clustersComputingasutilityAnalogytopowergridComputinggrid:Outletisthenetworkjack;payperprocessorcycles,storage,bandwidth,applicationtimeusedApplications:Nanoelectronicsonlinesimulation-nanoHUBManyothers:high-energyphysics,hurricanepathprediction,seismicmodeling,proteinsequencing,CADdesign/simulation,renderingfarms,financialanalysis,…VirtualizationfacilitatesmanagementanddeploymentofGridresourcesnanoHUB.
org2/3/200618onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureGridcomputingonvirtualresourcesThreevirtuesofvirtualizationManifolding,polymorphism,multiplexingMultiple,independentvirtualresourcesshareaphysicalresourceVMs:Isolation–improvedsecurityMultipleconcurrentO/Ss–time-sharingIndependentconfiguration–flexibilityApproach:applyvirtualizationmachines,diskstorageandnetworkThenanoHUBandtheunderlyingIn-VIGOmiddlewareApplicationofthesetechniquesresultinaunique,flexiblecyberinfrastructurenanoHUB.
org2/3/200619onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureSummaryVirtualmachinesarebecomingmoreandmorepervasiveinenterpriseanddesktopenvironmentsHardwareandsoftwarevendorsareincreasinglysupportingvirtualizationCompetition–betterproducts,lowerpricesVirtualizationiskeytoaflexiblecomputationalcyberinfrastructurenanoHUBandIn-VIGO:applyvirtualizationtobringonlinesimulationstothenano-*community
org2/3/20061onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureAnOverviewofVirtualizationTechniquesRenatoFigueiredoAdvancedComputingandInformationSystems(ACIS)ElectricalandComputerEngineeringUniversityofFloridaNCN/NMITeamnanoHUB.
org2/3/20062onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureOutlineResourcevirtualization:MotivationsandtechniquesVirtualMachines:past,present,futureApplicationsinGridComputingnanoHUB.
org2/3/20063onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructurePhysicalcomputerProcessor,memory,andI/OHarddiskandnetworkinterfacesarekeycomponentsoftheI/OsubsystemProcessorrunsinstructions.
Memoryholdsdataforfastoperation.
Diskholdsdatainpersistentstate(files,directories).
NetworksupportscommunicationnanoHUB.
org2/3/20064onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualComputerAvirtualcomputerhasthesame"lookandfeel"asaphysicalcomputerVirtualprocessor,virtualmemory,virtualdiskandvirtualnetworkcardCanrunexactlythesamesoftware(e.
g.
Windows,Linux)Butmultiplevirtualcomputerscantime-shareasinglephysicalcomputer!
LinuxWinXPNetBSDPhysicalmachineVirtualmachinesnanoHUB.
org2/3/20065onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualMachinesCapableofrunningfull-blownO/SwithinVM"guest"VMwareXenMicrosoftVirtualPCSupportlegacysoftwareAdvantageoverJavaVM,C#CLRVM"Host"VM"Guests"nanoHUB.
org2/3/20066onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureWhyvirtualComputersMotivationsResourcesharingandconsolidation;securityandisolationFamiliarexample:virtualmemoryinmulti-taskO/SsPhysicalmemorysharedbymultipleprocesses;eachprocesshasitsown,independentaddressspaceEaseofmanagementVirtual(software)vs.
physical(hardware)Copying,migration,archival,versioningVirtualizationaddsanextralayerofsecurityandisolationAusercan"crash"orrebootaVMwithoutcompromisingitshost,orotherVMsVMisnotnearlyascomplexasO/SBecausetheyaresmallerandsimpler,theyareharderto'hack'thananO/SDiscoVM:50KlinesofcodeIRIXO/S:millionsoflinesnanoHUB.
org2/3/20067onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualMachines-VMs"Classic"VMsTechnologytracesbacktotheearly70sLegacyO/SswhichwouldshareexpensivemainframesIBM370-zSeriesVirtualmachinedefined:"Asystem…which…isahardware-softwareduplicateofarealexistingmachine,inwhichanon-trivialsubsetofthevirtualmachine'sinstructionsexecutedirectlyonthehostmachine…"[Goldberg,1971]nanoHUB.
org2/3/20068onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureArchitectureofVMsHowareVMsimplementedCore:virtualmachinemonitor(VMM)softwarePresentsillusionofmachineduplicatetoothersoftwarerunningontopofitVirtualizationoperatesatthe(low)levelofindividualprocessorinstructionsCan"boot"existingoperatingsystems,rununmodifiedapplicationsontopofVMKeyinsighttoachievegoodperformance:RunmostinstructionsdirectlyonhardwareDSameperformanceaswithoutaVMMEmulatefewinstructionsthatrequirespecialhandlingDVirtualizationoverheadnanoHUB.
org2/3/20069onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureExample-performanceExamplequantifyingvirtualizationoverheadfortypicalCPU-intensivescientificapplicationsSpecHPCbenchmarksExperimentalsetup:Physical:dualPentium-III,933MHz,512MBmem,RedHat7.
1,SMPkernelVirtual:VMwareworkstation,128MBmem,RedHat7.
1uniprocessorkernelNativeVMOverheadSPECseis14806s14946s1.
0%SPECclimate9304s9693s4.
2%nanoHUB.
org2/3/200610onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructurePerformanceOverheadscanbelargerwithdiskI/O,networkactivityXenVMMachievesnear-nativeperformanceCPUCPU+I/OCPU+I/O+netBarhametal,"XenandtheArtofVirtualization",SOSP2003nanoHUB.
org2/3/200611onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualmachinesoftwareSeveralmaturevirtualizationproductsnowavailablefortypicaldesktopsandservers;hereisabriefoverviewVMwarePioneerofproductsbringingVMstoIntel-baseddesktopsandserversProductsWorkstationDEasytoinstallanduse;goodperformanceandseveralfeaturesPlayerDFree!
Can"play"VMscreatedbyWorkstationandESXGSXD"Group"server;moremanagementtoolsESXDEnterpriseserver;higherperformance,severalmanagementfeatures,advancedschedulingFormoreinformationanddownloads:http://www.
vmware.
comnanoHUB.
org2/3/200612onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualmachinesoftwareMicrosoftAcquiredstart-up(Connectix)andaddedVMstoitslineofproductsPlanstohaveVMsupportaspartoffuturereleasesofWindowsVirtualPCAkintoVMware'sworkstation.
CanrunVMwareVMs(andvice-versa)Unlikeworkstation,doesnotrunontopofLinuxCanrunIntel-basedVMs(e.
g.
Windows)onPowerPC-basedMacsVirtualServerAkintoVMware'sGSXserverFormoreinformation:http://www.
microsoft.
com/Windows/virtualpc/default.
mspxhttp://www.
microsoft.
com/windowsserversystem/virtualserver/default.
mspxnanoHUB.
org2/3/200613onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualmachinesoftwareXenOpen-sourceVMinitiallydevelopedatCambridgePackaginganddistributionnowhandledbystart-upcompanyXenSourceDesignedtoachievehighperformance"Para-virtualization"techniquestoreducevirtualizationoverheadButpara-virtualizationrequiresoperatingsystemstobemodifiedbeforetheyrunonXenTypically,XenrunsLinux,FreeBSDorNetBSDWithnewIntel/AMDprocessors,XenisbeginningtosupportunmodifiedoperatingsystemsFormoreinformationanddownloads:http://www.
xensource.
comnanoHUB.
org2/3/200614onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureVirtualmachinesoftwareParallelsWorkstationLow-costVMComparabletoVMwareworkstation,WindowsVirtualPCRunsonbothWindowsandLinuxServer,Enterpriseserver:due2006Formoreinformationanddownloads:http://www.
parallels.
comnanoHUB.
org2/3/200615onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureHardwaresupportMuchofthevirtualizationoverheadtodayareduetoprocessorsnotbeingdesignedwithvirtualizationinmindSeminalpaperbyPopek,Goldberg(1974)providesbasicguidelinesEfficientVMMcanbedesignedif:1.
Processorhasprotectionmechanisms,and2.
Privilegedinstructionsthatread/writesystemstatusmustcauseexceptionsifrunatnon-privilegedlevelModernmicroprocessorssupportprotection(condition1)However,secondconditionrarelysatisfiedDE.
g.
Intel'x86':17problematicinstructionsToday,VMsmustuseseveralsoftware'tricks'tocircumventproblematicinstructionsinprocessorssuchasIntel/AMDTomorrow:processorshavebeen/arebeingredesignedtosupportmoreefficientVMsIntelVTindual-core"Yonah";AMD"Pacifica"nanoHUB.
org2/3/200616onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureBeyondasinglehostOnevirtualmachineSinglephysicalmachine(uni/multi-processor);multipleconcurrentO/SsVMmonitors(VMware,Xen)virtualizelocaldevicesInterconnectedVMsEmergingapplicationsnotconsideredinearlyVMdaysHowtovirtualizenetworkingandremotestorageaccessHowtoschedule,manageVMsbeyondlocalareanetwork(LAN)domainboundariesnanoHUB.
org2/3/200617onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureApplicationsinGridcomputingGoal:harnesscomputingpowerofdistributeddesktops,servers,clustersComputingasutilityAnalogytopowergridComputinggrid:Outletisthenetworkjack;payperprocessorcycles,storage,bandwidth,applicationtimeusedApplications:Nanoelectronicsonlinesimulation-nanoHUBManyothers:high-energyphysics,hurricanepathprediction,seismicmodeling,proteinsequencing,CADdesign/simulation,renderingfarms,financialanalysis,…VirtualizationfacilitatesmanagementanddeploymentofGridresourcesnanoHUB.
org2/3/200618onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureGridcomputingonvirtualresourcesThreevirtuesofvirtualizationManifolding,polymorphism,multiplexingMultiple,independentvirtualresourcesshareaphysicalresourceVMs:Isolation–improvedsecurityMultipleconcurrentO/Ss–time-sharingIndependentconfiguration–flexibilityApproach:applyvirtualizationmachines,diskstorageandnetworkThenanoHUBandtheunderlyingIn-VIGOmiddlewareApplicationofthesetechniquesresultinaunique,flexiblecyberinfrastructurenanoHUB.
org2/3/200619onlinesimulationsandmoreWorksupportedbySCI-0438246CyberInfrastructureSummaryVirtualmachinesarebecomingmoreandmorepervasiveinenterpriseanddesktopenvironmentsHardwareandsoftwarevendorsareincreasinglysupportingvirtualizationCompetition–betterproducts,lowerpricesVirtualizationiskeytoaflexiblecomputationalcyberinfrastructurenanoHUBandIn-VIGO:applyvirtualizationtobringonlinesimulationstothenano-*community
- mainframeshdchina.org相关文档
- testedhdchina.org
- Sodiumhdchina.org
- Paintinghdchina.org
- concepthdchina.org
- www.playengland.org.uk
- 中华医学会信息管理平台
CYUN(29元/月)美国、香港、台湾、日本、韩国CN2,续费原价
关于CYUN商家在之前有介绍过一次，CYUN是香港蓝米数据有限公司旗下的云计算服务品牌，和蓝米云、蓝米主机等同属该公司。商家主要是为个人开发者用户、中小型、大型企业用户提供一站式核心网络云端部署服务，促使用户云端部署化简为零，轻松快捷运用云计算。目前，CYUN主要运营美国、香港、台湾、日本、韩国CN2线路产品，包括云服务器、站群服务器和独立服务器等。这次看到CYUN夏季优惠活动发布了，依然是熟悉的...
Hostigger不限流量VPS年20美元
Hostigger 主机商在前面的文章中也有介绍过几次，这个商家运营时间是有一些年份，只不过在我们圈内好像之前出现的次数不多。最近这段时间商家有提供不限流量的VPS主机，逐渐的慢慢被人认识到。在前面的介绍到他们提供的机房还是比较多的，比如土耳其、美国等。今天看到Hostigger 商家居然改动挺大的，原来蛮好的域名居然这次连带官方域名都更换掉去掉一个G（Hostiger ）。估摸着这个域名也是之前...
VirtVPS抗投诉瑞士VPS上线10美元/月
专心做抗投诉服务器的VirtVPS上线瑞士机房，看中的就是瑞士对隐私的保护，有需要欧洲抗投诉VPS的朋友不要错过了。VirtVPS这次上新的瑞士服务器采用E-2276G处理器，Windows/Linux操作系统可选。VirtVPS成立于2018年，主营荷兰、芬兰、德国、英国机房的离岸虚拟主机托管、VPS、独立服务器、游戏服务器和外汇服务器业务。VirtVPS 提供世界上最全面的安全、完全受保护和私...
hdchina.org为你推荐
-
虚拟空间租用我在网上租用了个虚拟空间。带域名。。想在里面放置AVI,等视频。放在目录里，然后怎么设置才能在域名观看呢免费注册域名怎样免费注册域名呢 要详细的步骤哦网站域名域名和网址有什么区别？中国域名注册中国十大域名注册服务商有哪些?域名服务什么叫主域名服务器？美国网站空间美国，韩国，香港网站空间深圳网站空间怎么样建立网站网站空间申请企业网站空间申请有哪些流程啊。、、。万网虚拟主机万网免费虚拟主机和收费虚拟主机有什么区别上海虚拟主机我想购买虚拟主机，选个品牌。大家给点意见。电信为主。当然肯定要支持多线。