JavaandPythonCoGKits KeithR.Jacksonkrjackson@lbl.govGregorvonLaszewskigregor@mcs.anl.gov
1 Objectives •WhataretheCoGKits,andwhydoIwanttousethem?
•HowdoIusetheCoGKits?
•HowdoIdevelopmyponentswith theCoGKits?
•Future
2 MotivationforCoGKits •Problem –ManyapplicationdevelopersdesiretoprogramtheGridinframeworksfamiliartothemtoforexampleenablerapidprototyping. •Solution –TheCoGKitprojectintegratesGridsoftwarebasedontheGlobusToolkitandmodityframeworksuchasJavaorPython. •EasierdevelopmentofadvancedGridservices•Easierandmorerapidapplicationdevelopment•EasierdeploymentofGridservices•Codereuseanduseponentrepositories•UseofWebservicesaspartoftheGrids•WidespreaduseoftheGrid
3 CoGsaremore… •CoGsaremorethanjustaninterfacetotheGlobusToolkit •CoGsallowGridprogrammerstousetheCommodityTechnologiesANDtheGridsadvantages –Example:EventandexceptionmodelofJava–Example:SWIGwrappersinPythonforrapid prototypingandlegacycodesupport. •Thus,CoGsarenotjustanAPIbutprovideesstotheCommodityFramework
4 ReasonsforusingtheJavaCoGKit •WhyusetheJavaCoGKit?
–keepingupwithpatchesandprotocolchangesinGlobushasbeendifficultinthepast –TheJavaCoGKithassofarprovidedmunitywitha“service”tohidetheburdenofchangingyourcode. •AskforatestimonybytheXCATgroupatIndianaUniversity. –ManyusersneedonlythefeaturesprovidedintheJavaCoGKit–Little/nochangesweresofarinvolvedtoswitchbetweendifferent versionsoftheGlobusToolkit–Mostlyclientsideprogramming–JavaPlatform: •HighlevelframeworkbettersuitedforGridprogrammingthanC •WhynotusetheJavaCoGKit –ItdoesnotprovideallthelatestfeaturesoftheGlobusToolkit.–ItusesJava,andsomeinmunity…;-)
5 ReasonsforUsingthePythonCoGKit •WhyusethePythonCoGKit?
–ProvidesafullinterfacetotheGlobusToolkit–Little/nochangesareinvolvedinswitchingbetween differentversionsoftheGlobusToolkit–HighlevellanguageallowsforeasierGridprogramming •SupportsrapidprototypingofGridservices/applications –ManyautomatedtoolsexistforexposinglegacyC/C++orFortrancodesasPythonobjects •WhynotusethePythonCoGKit –Smallperformancepenaltyforusinganyinterpretedlanguage •MinimizedbecausethePythonCoGKitisathinwrapperoverthenativeCcode. –Nostatictypechecking–ItusesPython,andsomeinmunity…;-)
6 Motivation:JavaandPythonCoGKits •UseandleverageexistingtechnologiesforGridprogramming-ThecapabilitiesoftheframeworkontowhichGridServicesaremappedcanbeexploited:Objects,Events,Exceptions,JNDI,...-Objectslikejobs/taskscanbedefined.-XMLsupportisprovided.-GUI's,....,IDE'scanbeused(Forte,BOAConstructor…) •Maximizesoftwareflexibility,extensibility,andreusability•Providefoundationsforapplicationdeveloperteamsthatare familiartodevelopapplicationsinthisframework-Reducedevelopmentandmaintenancecost •Useasglueformanytechnologies•Pythoniswellsuitedtotyingtogethermanydifferentlanguages/technologies
7 WhatistheJavaCoGKit?
•TheJavaCoGKitprovidesamappingbetweenJavaandtheGlobusToolkit.ItextendstheuseofGlobusbyenablingtoessadvancedJavafeaturessuchaseventsandobjectsforGridprogramming. •TheJavaCoGKitisimplementedinpureJava.ItspeakstheGridprotocols. •ItisnotawrapperoftheCGlobusToolkit•Thisallowsintegrationwithinapplets.•Mostlyclientsidesupport
8 WhatisthePythonCoGKit?
•SimilarlythePythonCoGKitprovidesamappingbetweenPythonandtheGlobusToolkit.ItextendstheuseofGlobusbyenablingtoessadvancedPythonfeaturessuchasexceptionsandobjectsforGridprogramming. •ThePythonCoGKitisimplementedasaseriesofPythonextensionmodulesthatwraptheGlobusCcode. •UsesSWIG()tohelpgeneratetheinterfaces.
9 Status:JavaCoGKit •Modifiedcoreponents(Protocols) •Basicservicesareprovidedessing: –Security (GSI) –Remotejobsubmissionandmonitoring(GRAM) –RemoteDataess (GridFTP) –InformationServiceess (MDS) –Certificatestore (myProxy) •Current100%clientponentsincludes •ReusableGridponents •AvarietyofGridInterfaces 10 Status:PythonCoGKit •Basicservicesareprovidedessing: –Security (security) –Remotejobsubmissionandmonitoring(gramClient) –SecureworkIO (io) –Protocolindependentdatatransfers (gassCopy) –HighperformanceGridFTPtransfers (ftpClient) –SupportforbuildingGridFTPservers (ftpControl) –RemotefileIO (gassFile) –InformationServicesess •Highlevelservicesforeasierusage •Taskbasedservicestomonusagepatterns 11 Communication •WebPage –/cog–www-itg.lbl.gov/gtg/projects/pyGlobus/ •Bugs –Java: •/cog/contact/bugs/IsmaintainedbytheGlobusProjectbutdoesnotcontainsomeofthements •http://arbat.mcs.anl.gov:8080/bugzilla/Isouroldbugzilla –Python: •http://www-itg.lbl.gov/bugzilla/ •Download –/cog–/cog/java/–www-itg.lbl.gov/gtg/projects/download/download_info.html 12 Versions •JavaVersions –0.9.13isapatiblewithGlobus2.0 •wemendusingGlobus2.0ifyouliketousethisrelease –1.1apatiblewithGlobusToolkit2.2andinfutureGlobusToolkit3.0,e.g.muchofitmaybedistributedaspartofGlobusToolkit3.0 •WemendusingthisversionforGlobus2.2•Stillanalpharelease •PythonVersions –0.9.8 •Twoversions,oneforGT2.2andoneforGT2.0 13 Download&Compile 14 JavaCoGSetupOptions •DownloadSourceorbinary –/cog •Binary –ReadtheReadme–setup–changetheenvironmentvariables •Source –Readthereadme–setup–changetheenvironmentvariables •Manualwillbeavailableshortly 15 PythonCoGKitSetupOptions •Downloadsource –SetEnvironmentvariables–Compile–Install •EasytocreateRPM’sforLinuxsystems•Binaryingforwin32 –AssoonasGlobusofficiallyreleasesthewin32port •Canbuildbinarypackagesforanyplatform•UsesthestandardPythondistutilmodule 16 Requirements •JavaCoG –JDK1.3.1or1.4.1 • –ant •/ant/ •PythonCoG –Python2.0+ • –GlobusToolkitInstallation–GPTInstallation 17 JavaCoGCompilation •cdwork •wecreateabuild •cdogce•antdist•cd..• directoryinwhichthejarfilesandshellscriptsarelocatedthatallow –(a)programmingand •work–ogce –(b)useofclienttoolsfrommandline –jglobus –build •cog-1.1a FAQ.TXT bin//herearemands lib//herearethejars etc 18 PythonCoGKitCompilation •EnsurethatGPT_LOCATIONandGLOBUS_LOCATIONaresetappropriately •cdpyGlobus-{Version}•pythonsetup.pybuild –--prefix=/path/to/installation/directory–Willonlybuildthosepackagesthatyouhave Globusinstallsof •pythonsetup.pyinstall –Toinstallinthesite-extensionsdirectoryrequiresrootprivilege 19 ObtainKeys •ObtainGlobuscredentials –Userprivatekey–Usercertificate–TrustedCAcertificates–Takealookat/security •ObtainacertificatefromyouranizationCA•youcaninstallasimpleCAonyourmachinetocreateyour owncertificates.•youcouldinstallpartoftheGlobustoolkitthatwouldallow youtorunglobus-cert-request •Placecredentialsmonplace –Usershomedirectoryin.globusdirectory 20 SetupoftheJavaCoGKit 21 Setuphastwopurposes •Enableessmandlines(optional) –pathandotherenvironmentvariables •Enableesstocertificates(mandatory) –convenientponent 22 Usingmandlinetools(optional) •addwork/build/cog1.0a/bin/toyourpath•Unix –exportPATH=$PATH:/home/gregor/work/build/cog1.0a/bin–exportJAVA_INSTALL_PATH=/home/gregor/work/build/cog1.0a–shouldbe:;-)JAVA_COG_HOME=/home/gregor/work/build/cog1.0a •Windows –Registry •ControlPanel->System->Advanced->EnvironmentVariables•NewVariableJAVA_COG_HOME•EditthePathVariable 23 SetupComponent(mandatory) 24 SettinguptheJavaCOGKit •Thisinvolveswritingacog.propertiesfiletoyouruser.globusdirectorywhichcontainsinformationregardingthefollowing: –Thelocationofyourusercertificatefilethatidentifiesyouasatrusteduserandisusuallynamedusercert.pem –Thelocationofyourprivatekeyfilethatusuallytakesthenameuserkey.pemandisusedtoencryptinformationyousendout,sothatrecipientswithapublickeycouldverifyyouridentity –ThelocationoftheCertificateAuthority(CA)file.TheCAisathirdpartythatisusedtocertifythelinkbetweenthepublickeyandthesubjectinthecertificate. –Thelocationoftheproxyfilethatisusedtotemporarilyidentifyyouonthegrid.Thefileusuallytakesthenamex509up_u_usernameandcanoftenbefoundinyourtemporarydirectory. –ThesystemIPaddressandthedatealsoneedstobechecked. Itisadvisedthatthecertificatesalsobestoredinthedefault.globusdirectory. 25 Examplecog.propertiesfile •Youcancustomizethecog.propertiesfilesbyhand. –seetheFAQ.TXTinthebindirectory •relevantCode –work/jglobus//mon/CoGProperties.java–work/ogce//globus/ogce/gui/cogsetup •Commonvaluessetincog.properties–usercert=/home/globoid/.globus/usercert.pem–userkey=/home/globoid/.globus/userkey.pem–proxy=/tmp/x509up_u999–cacert=/etc/grid-security/certificates/42864e48.0,/etc/grid-security/certificates/5aba75cb.0–ip=192.123.123.1 26 ponents OneexampleofauserinterfacetotheGrid 27 JavaBeans •LocalSystemFileBrowsing LocalTreeFrameBeanprovidesthecapabilitytobrowsethefilespresentinthelocalsystem. •RemoteSystemfileBrowsing RemoteTreeFrameBeanisthebasicbean,whichprovidesgenericremotefilebrowsingfunctionalities.CurrentlyweprovideGridClientandFtpClientbeansthatutilizetheRemoteTreeFrametoprovideimplementationforftpandgridftpserversrespectively. •FileTransfer FileTranferBeanprovidesthefiletransfercapabilities. Available:.globus.ogce.beans.filetransfer.* 28 FileTransferComponent 29 ShellComponent 30 ShellComponentmands) •Help –Printsoutallmandssupportedbytheshell–helpmand>givesspecificsyntaxhelp •Basicmands –mkdir,cd,ls,pwd,rm,rmdir,cp,cls,exit… •FileTransferConsolestoperformallfiletransferoperations. –ftptoopenaconnectiontoFTPsite–gridftptoopenaconnectiontogridFTPsite 31 ShellComponentmands) •mands –globusrun runjobsonremotemachine –globus-url-copycopyfiles –globus-jobsetsubmitsetofjobswithdependenciestoaremotemachine •BackgroundThreadoption(&)mands –ps viewalltherunningprocesses –resume resumeaprocess –suspend suspendaprocess –kill killaprocessthread –result seetheoutputoftheprocess •Batchfiles –ant–fgrant.xml–runfilename 32 VisualJobSubmission Authentication(EnterPassphrase) SelectMachine SpecifyJob Observeoutput Hello123Bang World Atesttostderr321Bang RuntheJob 33 GridInformation/LDAPBrowser •Download –http://www-unix.mcs.anl.gov/~gawor/ldap/ •Separatelydistributed –Historicalreasons,oneofthefirstJavaCoGponents–thousandsofusers •alsooutsideofmunity 34 •Familiarlookandfeel•prototypeforwhatyou cando 35 Grid Loginwithmachinesandjobs ObservethejobsSubmittedtoamachine SpecifytheJob ObservetheOutput 36 WorkflowComponent •underdevelopment 37 JavaCommandLineTools 38 JavaCommandLineTools •Security –grid-proxy-init authenticatetogrid –grid-cert-info givescertinformation –grid-proxy-destroydestroytheproxy –myproxy startsamyproxy-server •FileTransfer –globus-url-copy simpleURL-to-URLcopy •Jobexecution –globusrun runbothbatchandinteractivejobs •PersonalGatekeeper –globus-personal-gatekeeperrunasimpleserver •GassServerfortranferingfilesforexecution –globus-gass-server startsthegassserver –globus-gass-server-shutdownshutsdowntheserver 39 SetupforRunningTools •COG_INSTALL_PATHandPATHarethevariablesyouneedtosetupinordertorunthetools. •Procedure: –BuildandinstalltheJavaCoGKitpackage.–SettheCOG_INSTALL_PATHtotheplacewherethecogis built.–Includethecogbindirectoryintothepath. •Example(sh) –setCOG_INSTALL_PATH=C:\build\cog-1.0a–setPATH=%COG_INSTALL_PATH%\bin 40 HowtoProgramwiththeJavaandPythonCoGKits 41 Examples •Javaexamples: –severalbasicexamplesarein •/globus/examples –severaladvancedexamplesareintheappropriatesubdirectory •e.g.securityexamples •Pythonexamples: –Basicexamplesarein •pyGlobus/examples –Testdirectoriescontaintheunittestcodethatprovidemoreadvancedexamples 42 ResourceSpecificationLanguage •RSLismoninterchangelanguagetodescriberesources,irrespectiveoftheschedulerorbatchsystemused. Supportsattributeslike •executable,workingdirectory,argumentslist •stdin,stdout,stderr(localfilesorGass/FTPURLs) •min/maxmemory,maxcputime,no.ofprocesses •Etc. •.globus.rsl.RslAttributes convenientmethodsforRSLexpressioncreationandmanipulation RslAttributesrsl=newRslAttributes(); rsl.add(“executable”,“/bin/ls”); StringrslStr=rsl.toRSL(); //returnedRSL:&(executable=/bin/ls) rsl.remove(“executable”); 43 JavaJobSubmission •Checkwhetheryoucansubmitajobtoaparticulargatekeeper. Gram.ping(proxy,“hot.mcs.anl.gov”); •Createajob GramJobjob=newGramJob(proxy,rsl.toRSL()); •Addastatuschangelistener classGramJobListenerImplimplementsGramJobListener{publicvoidstatusChanged(GramJobjob){Stringstatus=job.getStatusAsString();} job.addListener(newGramJobListenerImpl()); •SubmitthejobtoaGRAMresourcemanager job.request(“hot.mcs.anl.gov”);//defaultIANAport2119 •Cancelthejob,ifneedbe. job.cancel() 44 JavaOutputRedirection •CreateaGASSservertoreceiveoutput/error ForaGASSserveronclientmachine:GassServergass=newGassServer(proxy,port); AGASSservercanalsobestartedonaremotemachinethroughthegatekeeper. •SettheGASSURLasstdout/stderrparameterinjobRSL.Thiswillstreamthejoboutput/errortotheGASSserver. rsl.add(“stdout”,gass.getURL()+"/dev/stdout“);rsl.add(“stderr”,gass.getURL()+"/dev/stderr“); •Redirecttheoutput/errorfromGASSservertoaJobOutputListener. classJobOutputListenerImplimplementsJobOutputListener{publicvoidoutputChanged(Strings){/*processtheoutputhere*/}publicvoidoutputClosed(){}}; JobOutputListenerImploutListener=newJobOutputListenerImpl();JobOutputStreamoutStream=newJobOutputStream(outListener);gass.registerJobOutputStream(“out”,outStream)gass.registerJobOutputStream(“err”,outStream) •Output/errorsfromdifferentjobscanbehandledbyasingleGASSserver. 45 PythonJobSubmissionExample •Creatingajob. try:gramClient=GramClient.GramClient()callbackContact=gramClient.set_callback(func,condV)jobContact=gramClient.submit_request(“clipper.lbl.gov”, “&(executable=/bin/sleep)(argument=15)”,GramClient.JOB_STATE_ALL) exceptGramClient.GramClientException,ex:printex.msg •Callbackforstatechanges. deffunc(cv,contact,state,error):ifstate==GramClient.JOB_STATE_PENDING:print"Jobispending"elifstate==GramClient.JOB_STATE_ACTIVE:print"Jobisactive" 46 RedirectingstdoutwithgramClient frompyGlobusimportgassServerEZopts=gassServerEZ.STDOUT_ENABLEserver=gassServerEZ.GassServerEZ(opts)url=server.getURL()rsl="&(executable=/bin/sleep)(arguments=15) (stdout=%s/dev/stdout)“%url 47 Compare:CJobSubmissionExample callback_func(void*user_arg,char*job_contact, intstate,interrorcode) { globus_i_globusrun_gram_monitor_t*monitor; monitor=(globus_i_globusrun_gram_monitor_t*)user_arg; globus_mutex_lock(&monitor->mutex); monitor->job_state=state; switch(state) { caseGLOBUS_GRAM_PROTOCOL_JOB_STATE_PENDING: { globus_i_globusrun_gram_monitor_t*monitor; monitor=(globus_i_globusrun_gram_monitor_t*)user_arg; globus_mutex_lock(&monitor->mutex); monitor->job_state=state; switch(state) { caseGLOBUS_GRAM_PROTOCOL_JOB_STATE_FAILED: if(monitor->verbose) {globus_libc_printf("GLOBUS_GRAM_PROTOCOL_JOB_STATE_FAILED\n"); } monitor->done=GLOBUS_TRUE; break; caseGLOBUS_GRAM_PROTOCOL_JOB_STATE_DONE: if(monitor->verbose) { globus_libc_printf("GLOBUS_GRAM_PROTOCOL_JOB_STATE_DONE\n"); } monitor->done
=GLOBUS_TRUE; break; } globus_cond_signal(&monitor->cond); globus_mutex_unlock(&monitor->mutex);
} 48 Compare:CJobSubmissionExample(cont.) globus_l_globusrun_gramrun(char*request_string,unsignedchar*callback_contact=GLOBUS_NULL;char*job_contact=GLOBUS_NULL;globus_i_globusrun_gram_monitor_tmonitor;interr;monitor.done=GLOBUS_FALSE;monitor.verbose=verbose;globus_mutex_init(&monitor.mutex,GLOBUS_NULL);globus_cond_init(&monitor.cond,GLOBUS_NULL); long options, char *rm_contact){ err=globus_module_activate(GLOBUS_GRAM_CLIENT_MODULE);if(err!
=GLOBUS_SUCCESS){…}err=globus_gram_client_callback_allow( globus_l_globusrun_gram_callback_func,(void*)&monitor,&callback_contact);if(err!
=GLOBUS_SUCCESS){…}err=globus_gram_client_job_request(rm_contact,request_string,GLOBUS_GRAM_PROTOCOL_JOB_STATE_ALL, callback_contact,&job_contact);if(err!
=GLOBUS_SUCCESS) {…}globus_mutex_lock(&monitor.mutex); while(!
monitor.done){globus_cond_wait(&monitor.cond,&monitor.mutex); }globus_mutex_unlock(&monitor.mutex); globus_gram_client_callback_disallow(callback_contact);
globus_free(callback_contact); gglloobbuuss__mcuotnedx__ddeessttrrooyy((&&mmoonniittoorr..cmountde)x;);
49 PersonalGatekeeper Eg:.globus.gatekeeper.Gatekeeper•Runningthegatekeeper –Ant:ant-fdemos.xmlserver–Commandline:globus-personal-gatekeeper(Remembertosettheenvironmentvariables)UsetheGRAMcontactreturned. •Submittingjobstothisgatekeeper –globusrun-o-r"localhost:2119:/O=Grid/O=Globus/OU=mcs.anl.gov/CN=GregorvonLaszewski""&(executable=/c:/cygwin/bin/ls.exe)" 50 RemoteFileTransfer •Basedontheinterfacewecanmovethefilesinthefollowingways. –GUIBased:FileTransferComponentforGrids–Non-GUIBased:CommandLinetools–UsingAPI:ForProgrammers •Basedontheprotocolsitsupports,wecanclassifydifferentwaysasfollow –VanillaFTP:FTP–GridFileTransferProtocol:GridFTP–UrlCopy:HTTP,HTTPS,FTP,andFILE–GlobalesstoSecondaryStorage-GASS: HTTP,HTTPS 51 JavaUrlCopy:copyfrom->to Eg:.globus.io.urlcopy.UrlCopyTest.globus.io.urlcopy.* UrlCopyc=newUrlCopy(); Settingtheurls c.setSourceUrl(from);c.setDestinationUrl(to);c.setUseThirdPartyCopy(true); Registeringwiththelistener c.addUrlCopyListener(newUrlCopyListener(){publicvoidtransfer(inttotal,intcurrent){System.out.println(total+""+current);}publicvoidtransferError(Exceptione){System.out.println("transferfailed:"+e.getMessage());}publicvoidtransferCompleted(){System.out.println("pletedessfully");} }); Transferingthefile c.run(); 52 JavaGridFTPClient BasicFunctions: .globus.ftp.test.GridFTPClient2PartyTest.globus.ftp.*;GridFTPClientclient=newGridFTPClient(host,port);StringfullLocalFile=localDir+"/"+localFile;StringfullRemoteFile=remoteDestDir+"/"+localFile;client.authenticate(GlobusProxy.getDefaultUserProxy());client.setProtectionBufferSize(16384);client.setType(GridFTPSession.TYPE_IMAGE);client.setMode(GridFTPSession.MODE_EBLOCK);client.setDataChannelAuthentication(dcau);client.setDataChannelProtection(prot);DataSourcesource=newDataSourceStream(newFileInputStream(fullLocalFile));client.put(fullRemoteFile,source,null);DataSinksink=newDataSinkStream(newFileOutputStream(fullLocalFile));client.get(fullRemoteFile,sink,null); 53 PythonGridFTPExample frompyGlobusimportftpClientfrompyGlobus.utilimportBufferhandleAttr=ftpClient.HandleAttr()opAttr=ftpClient.OperationAttr()marker=ftpClient.RestartMarker()ftpClnt=ftpClient.FtpClient(handleAttr)ftpClnt.get(url,opAttr,marker,done_func,condV)buf=Buffer(64*1024)handle=ftpClnt.register_read(buf,data_func,0) defdata_func(cv,handle,buffer,bufHandle,bufLen,offset,eof,error):g_dest.write(buffer)ifnoteof:try:handle=g_ftpClient.register_read(g_buffer,data_func,0)exceptException,e: 54 PerformanceOptionsforGridFTP •SettingtcpbuffersizefrompyGlobusimportftpControlbattr=ftpControl.TcpBuffer()battr.set_fixed(64*1024) Or battr.set_automatic(16*1024,8*1024,64*1024)opAttr.set_tcp_buffer(battr)•Settingparallelismpara=ftpControl.Parallelism()para.set_mode(ftpControl.PARALLELISM_FIXED)para.set_size(3)opAttr.set_parallelism(para) 55 PythonGassCopy •ProvidesaprotocolindependentAPItotransferremotefiles. srcAttr =GassCopyAttr() handleAttr=GassCopyHandleAttr() destAttr =GassCopyAttr() ftpSrcAttr=FtpOperationAttr() ftpDestAttr=FtpOperationAttr() srcAttr.set_ftp(ftpSrcAttr) destAttr.set_ftp(ftpDestAttr) copy=GassCopy(handleAttr) copy.copy_url_to_url(srcUrl,srcAttr,destUrl, destAttr) 56 JavaWebBasedPortal Features •Noinstallationneededonuser’sside.Onlyabrowserisrequired.•Ontheportalserver,simpleinstallationprovidedforGridjobportletsusingApacheAnt (/ant).•Portletsallowtheusertosubmitinteractive/batchjobstoGlobusgatekeepers,monitortheirstatus (active,pendingetc.)andviewtheoutput/errors.esstotheGridisbasedonGSIsecurity. SoftwareneededtorunaJetspeedportalserver: •AJavaServletEngine/Container.MustpatiblewiththeServlet2.2orServlet2.3API.Forexample,Tomcat(/tomcat) •JDK1.3orhigherJavaVirtualMachine. RequirementsforGridjobportlets: •JavaCoG•AMyproxyserveronwhichdelegatedusercredentialsarestored.ThisisneededforGSI authentication.•MyProxycredentialessportletdevelopedbyIndianaUniversityExtreme!
ComputingLab. 57 JetspeedPortletforJobSubmission 58 •JavaCoGKit FuturePlans –isbeingheavilyusedinGT3 –formsthebasisofthenewIBMGridApplicationFrameworkforJava(GAF4J) •/tech/gaf4j?
Open&ca=dawhp-pr –WearedevelopinganapacheJetspeedbasedPortaltoolkitforGrids. –WillbedistributedaspartofGT3andseparately •PythonCogKit –WillprovidetheunderlyingsecurityimplementationforthePythonOGSIenvironment –continuetosupportourhigh-levelinterfacesforGT3 59 Acknowledgement •TheJavaCoGEffortispartoftheGlobusProject•TheJavaandPythonCoGKitsarefundedbythe
U.S.DepartmentofEnergyOfficeofScience•SomeJavaCoGworkissupportedbyNSF/Alliance•Moreinformationcanbefoundat ––/cog–http://www-itg.lbl.gov/gtg/projects/pyGlobus/ •Email: –krjackson@lbl.gov–gregor@mcs.anl.gov 60