1、1,The Portal Expedition,Beth Plale, Dennis Gannon Indiana University Project Leads Jay Alameda NCSA Project Coordinator,The Alliance Portals Expedition,2,Participating Individuals,Geoffrey Fox, Pervasive Technology Labs, Indiana Marlon Pierce, Pervasive Technology Labs, Indiana Gregor von Laszewski,
2、 Argonne National Labs Shawn Hampton, NCSA Al Rossi, NCSA Liang Fang, Indiana Univ. Gopi Kandaswamy, Indiana Univ. Sriram Krishnan, Indiana Univ. Chris Johnson, Univ of Utah Yarden Livnat, Univ of Utah Ray Plante, NCSA Bob Wilhelmson, NCSA (unsupported) Many others! ,3,The Big Picture,Portal where G
3、rid is collection of distributed Services that unify wide area resources into a single system, the Portal is door and entrance hall to Grid For most users, primary interaction with Grid will be through a portal,Portal Server,Security Services,Metadata Directory Service(s),Directory & index Services,
4、Application Factory Services,Messaging and group collaboration,Event and logging Services,The User,Users persistent state (context),4,Portal Interaction Model,How does user interact with Grid using portal? Logging onto portal brings up persons current Grid Context; set of portlets used to access Gri
5、d resources. “portlet” interfaces with client-side and remote Grid services. Portlets can provide: simple and secure access to Grid applications and resources persistent references to files, metadata, applications, event and message histories, and experiment logs Secure sharing of applications and d
6、ata within group Access to group collaboration desktop applications,5,A Portlet Based Architecture,Portlet Concept Display organized in tabbed pages Each page is set of panes Portlet is back-end code that manages one pane Standard design for Apache Jetspeed, IBM Websphere & others Soon to be Java st
7、andardPortal is a portlet container User configures portlets. Portal container retains user configuration and state Portlets can communicate with each other.Portlet as Grid service interface A Grid service bound to portlet so user can interact with service.,See http:/www.extreme.indiana.edu/xportlet
8、s,A Portlet talking to a MyProxy certificate server,6,Portal Architecture,Secure Web Server & Portlet Container,The Grid,Persistent user State,select, store fetch,Grid Security,Browser ineractions,Grid Info Serv,Grid interface via Java COG Kit,Launch Serv,File Mgmt Serv,Message Archive,Grid User Con
9、text database,Transient Application Service,Persistent Application Factory Service,Most Grid Services are reflected as Portlet in portal server.,7,Existing Grid Portlets: see demo!,Provided Capability Management of user proxy certificates Remote file management via GridFTP News/Message systems for c
10、ollaborations Event/Logging service Personal directory of services, metadata and annotations. Access to LDAP services Specialized application factories MEAD, Earthquake science, Particle Physics (Atlas) Tool for testing performance of grid information servers. Shared collaboration tools Including sh
11、ared Powerpoint Access and control of desktop Access Grid,See http:/www.extreme.indiana.edu/alliance,8,MyGridContext,A Portal service; provides each user a simple directory of their favorite Grid “stuff”. Each directory item can be An user interface to remote web service Application execution histor
12、ies (event logs) External metadata catalog service reference Users can add annotations (HTML) to directory entry.,9,Citation Metadata,Topic List,Citation Entry Wizard,RSS Citation Catalogue,XML Metadata Management,10,Web Services for Collaboration,Portlets collect interfaces to AV control services f
13、or merging H323, SIP, and AG.,Universal access to P2P, PDA, Cell Phone, Polycom, RealOne, Access Grid,Scalable messaging supports 1000s of Clients.,11,Links to desktop Apps for Vis,12,Current Applications,13,NCSA Grid Desktop (MEAD),GridDesktop Java Application container for science interface (in th
14、is case MEAD input screen, plus output monitor) Malleable interface to facilitate submission of hundreds of jobs Screenshot shows submission of one job, running of another.Grid TaskFlow Engine XML-based “workflow”, can monitor progress in GridDesktop Viewer on shows successfully completed “targets”
15、in workflowSupport services (metadata catalogs) track hundreds of runs,14,GRAPPA,Atlas Experiment Large Hadron Collider 100 MB/sec (10PB/year) Grid Access Portal for Physics Apps To provide Atlas physicists with an point of access to Grid resources Manage submission of Athena and AtlSim jobs to cond
16、or cluster Manage interaction of analysis with physics data and grid services,events,detector,histogram,Mesg servc,Job op servc,Particle prop,Analysis module,Grappa Notebook App Manager,15,Radio Astronomy: The BIMA Image Pipeline,Pipeline automatically processes data from BIMA telescope Integrate us
17、e of Globus Java CoG into Pipeline software Convert components into secure grid services Queue Manager is underway. Develop portlets for monitoring, administrating, and sending new processing requests.,16,A Collaboration on a Grid Portal Standard,A standard for reusable Grid Portal Components Portle
18、t architecture modified for Grid Security OGSI/OGSA compatible Partners NASA IPG DOE SciDac CCTTSS CCA Components are OGSI Grid Services Grid Lab (EU) NPACI via Univ. of Texas NEES Grid via Univ of Michigan Argonne On Grid Software Repository (for services and components) OGSA interfaces for components,16,Alliance Portals,
