GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES GEON IT Update PI Meeting, Blacksburg, VA March 21-23, 2004

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES Outline Update on state of IT activities GEON Software Architecture and project high-level goals Update on activities at SDSC (since last meeting) The GEON Portal Knowledge representation Development of knowledge structures Schemas (metadata is implicit in this), Controlled vocabularies, Ontology structures…

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES Components of the GEONgrid Architecture GEONgrid Physical Implementation Core Grid Services Registry, authentication, access control, monitoring, replication, distributed filesystem, collection management (SRB), job submission, e.g. launch job to TeraGrid “Higher-Order” Services Registration: data and metadata, schema, ontology, services Data Integration: spatial data integration, data systems integration, schema integration 2D Visualization, including GIS Workflow 3D Viz, Augmented Reality Portal Portlet-based design. User space, GeonSearch, GeoWorkbench.

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES GEON Software Architecture activities Architecture “Retreat” at SDSC, Jan Architecture document in preparation Established GEON software development areas with Coordinator and Chief Programmers for each Each group meets once a week. Chief programmers meet once a week, on Monday Would like to develop a schedule of visits of GEON PI’s to SDSC To attend Monday meetings GEONgrid software Plans for 6 month, 1 year, 2 years Release 1 by Dec. 2004

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES GEON Software Development Areas Development AreaCoordinatorChief Programmer 1. Core Grid ServicesKaran BhatiaSandeep Chandra 2. PortalDogan SeberChoonhan Youn 3. Data RegistrationBertram LudaescherKai Lin 4. MappingIlya ZaslavskyAshraf Memon 5. MediationPavel Velikhov 6. WorkflowBertram LudaescherEfrat Jaeger Also, Jane Park, Doug Greer, LJ Ding, and others …

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES GEONgrid Physical Implementation PoP Nodes only VaTech, Bryn Mawr, Penn State, Rice, Utah EGI, Utah, DLESE, UNAVCO PoP nodes + Data Nodes Idaho, Arizona State, SDSC PoP nodes + Compute Nodes Missouri, UTEP, SDSC

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES GEON Nodes Compute nodes Want to create at least a few nodes as a TeraGrid “sandbox” GEONgrid is currently based on Redhat Linux, OGSI and Globus Toolkit Version 3 (GT3) TeraGrid is currently based on SuSE Linux, GT2.4 Sandbox allows GEON PI’s to develop debug software in GEONgrid prior to sending jobs to TeraGrid GEON has a TeraGrid allocation (30,000hours) Need to keep in mind GEONgrid heterogeneity Windows and other platforms

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES GEON Services “Hosted” vs “non-hosted” services Hosted: service is implemented within the physical GEONgrid environment (i.e. on one of the systems). The implementation can benefit from core capabilities provided in GEONgrid, e.g. replication, load-balancing Need at least a PoP node to host a service Hosted databases will be stored at Data Nodes, but may be replicated at one or more PoP nodes Data nodes Require Internet2 connectivity Will be backed up to SDSC (figuring out details) Will be replicated among themselves (need to figure out details)

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES Core Grid Services Registry: a place to register and find basic Web services. But also, all services (e.g. PGAP, Gravity Database, Seismic Simulation Tool, …) Authentication: using GEON Certificate Authority and Grid certificates Initially (I.e. in 2004), use certificates only at the portal. Very few, if any, services may actually validate to Grid certificates Access control: investigating various systems for policy-based access to services Data replication: initial target is IBM GMR software for replicating files as well as databases Support for various data systems: e.g., SDSC Storage Resource Broker (SRB) and OpenDAP Perhaps implement servers at Data Nodes Job submission, e.g. launch job to TeraGrid. Leverage NMI funding. New proposal under NMI.

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES Higher-Order Grid Services Registration Data and metadata, schema, ontology, services Important in order to support search functionality Data Integration Defining “views” across multiple sources Multiple database schemas, e.g. in Chronos (Paleostrat, Neptune, Paleobiology), PAST?, Geochemisry (Navdat, PetDB, …) Multiple maps and map layers GIS and 2D Viz Integrating map layers. “Simple” mapping service. SVG-based data access and visualization tools Workflow Iconic representation of databases and tools Ability to link together tools and data to specify computations Based on Kepler system

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES GEON Portal Exact “look and feel” and core functionality is a work in progress Portal components for: GeonSearch, GeoWorkbench, Rocky Mountain Testbed, Mid-Atlantic Testbed, GEONSystems, GEON Docs, EOT Portlet-based design is meant to make it easier to create customized portals (“building blocks” approach) E.g. Rocky Mountain and Mid-Atlantic are examples of customized portlets Portal software is distributed to each PoP node. Can be customized at each PoP node.

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES GeonSearch Ad hoc search versus querying of pre- established “views” Ad hoc Search Search/discover information on data, services, experiments, “other” (e.g., people, organizations) Display results via map interfaces, semantic graphs View-based querying E.g., use ad hoc search to find a set of databases, map layers of interest; define a specific way of combining data across these various sources Need good use cases

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES GeoWorkbench Workbench “capabilities” Data and service registration Create spatial, temporal, concept-based indexes as part of registration process Ability to define views, e.g. using GeonSearch to find data, services, etc. Run analysis routines, e.g. via workflow specifications, using Kepler Visualize output, save output, feed output to other services Need good use cases Current portal is very much a work in progress Figuring out functional components Which function goes under what part of the portal, etc.

GEON PI Meeting, March h, 2004, Blacksburg, VA C YBERINFRASTRUCTURE FOR THE G EOSCIENCES Knowledge Representation