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GGF5 21-24 July 2002
Edinburgh, Scotland, UK

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Global Grid Forum 5: BOF Program
BOF: Appliance Aggregation BOF: Data Transport Proposed WG
BOF: Grid Scheduling Architecture BOF: Grid Economic Brokering Architecture WG
BOF: Scheduling Optimization BOF: OGSA Resource Usage Service Proposed WG
BOF: Grid Checkpoint Recovery Proposed WG BOF: OGSA Roadmap
BOF: Semantic Grid Proposed RG BOF: Usage Record WG
BOF: Service Management Frameworks RG BOF: Common Information Model (CIM) WG
and
BOF: Common Schemas for Interoperability
BOF: Production Grid Management WG BOF: Grid Information Retrieval WG
BOF: Large-site Authentication, Authorization, and Accounting (AAA) Requirements

BOF: Appliance Aggregation

Date/Time Tue, Jul 23, 2002: 4:30pm - 6:30pm
Location Carrick (50)
Area Peer 2 Peer
Description Dejan Milojicic, Hewlett Packard
Note Today, people are overloaded with IT appliances battling for the real estate of their belt (phone, PDA, camera, GPS) desk (displays, keyboards, mice), and closet (surrogate servers, storage). All of these appliances are real islands today, with separate power, hardware, interfaces, identity, ownership, state, and so forth. By employing the techniques of aggregation, we can establish a common ownership, shared state, shared applications, and shared services for these appliances. An appliance aggregation architecture would make appliances work better together by removing the barriers and better leveraging their resources. It may even result in minimizing or eliminating some of the appliances. Using one or a few appliances, a user can leverage environmental appliances by aggregating them with his personal ensemble of appliances. In this way users can limit the effort in using and managing the appliances. Please join us for a birds-of-feathers session at GGF to explore whether there is a broader interest in appliance aggregationarchitecture among the GGF members and their companies. We would also like to consider starting a research group (RG) on this topic. The RG is intended to start under the p2p technical area, but it should encompass the GGF in general.
Name Andrew A. Chein
Email achien@entropia.com
WebSite  

BOF: Grid Scheduling Architecture

Date/Time Tue, Jul 23, 2002: 4:30pm - 6:00pm
Location Harris 1 (40)
Area Scheduling & Resource Management
Description This group will define the architecture of a grid scheduler, and interactions between a grid scheduler and other components like the GSI, and local schedulers or NW management.
Note Based on the Scheduler Attribute Document, this working group has the object to define the architecture of a grid scheduler. This definition shall serve as basis for a first implementation of such a grid scheduler. Specifically, we want to discuss the interaction between a grid scheduler and other components like the grid information system, local resource management systems and network management systems. Additionally, we want to address the relationship between hardware resource management and data management. In this session we present a draft for a working group charter and a rough first draft of a document describing this architecture.
Name Uwe Schwiegelshohn
Email mailto:Uwe.Schwiegelshohn@udo.edu
WebSite http://www.mcs.anl.gov/~jms/ggf-sched/GGF5/

BOF: Scheduling Optimization

Date/Time Tue, Jul 23, 2002: 7:30pm - 8:30pm
Location Carrick (50)
Area Scheduling & Resource Management
Description We are proposing a new research group in scheduling optimization.
Note The aim of this research group is the investigation of the available scheduling techniques in the framework of the Grid infrastructure. Possible goals for this group include case studies of existing optimization techniques used in current schedulers, agreement on terms to discuss optimization techniques, comparison of optimization techniques used in current systems, etc.
Name Vincenzo Di Martino
Email mailto:vincenzo.dimartino@caspur.it
WebSite www.mcs.anl.gov/~jms/ggf-sched/GGF5/

BOF: Grid Checkpoint Recovery Proposed WG

Date/Time Tue, Jul 23, 2002: 6:00pm - 7:00pm
Location Harris 1 (40)
Area Applications & Models
Description The proposed GGF Working Group on Grid Checkpoint Recovery (GridCPR) seeks to bring together a variety of Grid users, developers and Grid resource providers to develop and establish standard methods, APIs, and protocols for performing Checkpointing and Job Recovery in Grid environments. In addition to providing a basic form of fault tolerance, Grid Checkpoint Recovery will be necessary to facilitate migration of computations among available resources. A draft charter for the working group is available at http://gridcpr.psc.edu/GGF/GridCPR-WG-draft.txt
Note The Grid Checkpoint Recovery Proposed WG BoF will focus on
- Defining the scope and activities of the proposed Working Group
- Revising/strengthening the charter for the proposed Working Group
- Planning subsequent meetings and activities
Name Derek Simmel
Email dsimmel@psc.edu
WebSite http://gridcpr.psc.edu/GGF/

BOF: Semantic Grid Proposed RG

Date/Time Tue, Jul 23, 2002: 7:30pm - 8:30pm
Location Harris 1 (40)
Area Architecture
Description This group will look at issues concerned with the use of Semantic Web tools by Grid Applications.
Note Goals: Many grid applications are set to benefit from semantic web tools and techniques. The semantic web includes standards and tools for immediate use (e.g RDF), ongoing activities (such as the W3C Web Ontology Working Group) and an active community of researchers. This RG provides a forum to track semantic web community activities, determine relevance to grid activities, provide a route for transfer of information and ideas between the communities and coordinate activities as appropriate.

Projected Tasks:
1) Track semantic web activities
2) Coordinate and interact with other GGF groups (for example, Data Access and Integration Services)
3) Feed requirements and experiences from the grid community back to the semantic web community
4) Operate a community web portal to facilitate the bridge
5) Create focused Working Groups as appropriate (e.g. one can envisage a working group relating to ontologies).

Lifetime:
This RG has an indefinite life time.
Name Dave De Roure
Email dder@ecs.soton.ac.uk
WebSite None

BOF: Grid Information Retrieval WG

Date/Time Tue, Jul 23, 2002: 6:00pm - 7:00pm
Location Harris 2 (40)
Area Performance and Information Services
Description This WG would look at requirements and a reference implementation for information retrieval on the Grid (documents etc.) The session will be led by Kevin Gamiel.
Note Mission:

The GridIR WG/RG will focus on establishing the requirements, specifications, reference implementations and best practices in supporting Information Retrieval (IR) services on the Grid. Grid IR services will be needed by users, applications and portals to provide documents, document extracts, answers or other data items to satisfy information needs.

Goals:

The GridIR WG/RG will focus on the following:

1. Establish the requirements for Grid IR services:

GridIR will be defined as a set of grid services which, together, can be used as an IR system, including:

Harvesters, to gather network-based documents
Indexers, to build data- and file-structures for retrieval
Index processors, to determine post-indexing term and document weights
Query processors, to take user queries and gather results
Integrators, for ranking results from different sources
Renderers, to take results and organize or present them
Many other sub-systems and control systems
GridIR will also need to impose requirements on the IR service specific to the Grid, including:
Rapid update schedules for datasets
Federation of datasets from multiple sources
Enabling local policy for dataset content access, based on Grid security infrastructure
Sophisticated localized indexing and query processing appropriate for each dataset
Sophisticated post-hoc results ranking
Efficient use of computational resources (e.g., multiple harvesters feeding one indexer)
Multimedia capabilities (incorporation of special-purpose IR systems into one meta-system)
Rapid rendering and context-switching, including data visualization of results and multiple 'views' of data b ased on different user profiles
Consensus-based results generation from multiple retrieval algorithms to select best-of-breed algorithms


2. Define a set of GridIR specifications:

The Open Grid Services Architecture (OGSA) along with technlogies such as the Web Services Flow Language (WSFL) provide a framework for linking loosely coupled grid services together to form more advanced services. Though these technologies provide the infrastructure, each service description must be created by stakeholder communities to ensure required functionality. The GridIR WG/RG will develop an overarching IR architecture, will detail service-level requirements, will establish independent service models, and develop interface specifications for the various independent IR-related services, all with an eye towards tying those services together into an integrated whole. The WG/RG will work to develop a plug-and-play type architecture for GridIR where the Grid infrastructure enables rapid integration of standards-compliant IR modules. In many cases, GridPipes will allow communication between modules (e.g., for multiple harvesters feeding an indexer).Anticipated individual services include crawlers, indexers, search and presentation engines.

3. Support and Evaluate GridIR Reference Implementations

There are numerous investigation areas for the reference implementation for GridIR specifications. The reference implementations will address many of the following IR considerations:
Extremely large collections (billions of documents)
Documents in plain text, HTML, XML
Multimedia documents (video, audio, other non-text formats)
Documents in multiple languages; queries in multiple languages
All variety of harvesting methods
Numerous fundamental IR algorithm components (Boolean; Vector Space Model, probabilistic IR, Page Rank, Latent Semantic Indexing...)
Flexible local policy for what documents are allowed
Sub-document retrieval, linguistic approaches, question answering
Long and short queries; document filtering
Solutions for most of the IR techniques are available, although some do not scale well or are less amenable to the distributed processing of the Grid.

GridIR will benefit from past experiences in networked IR. For example, Z39.50 offers the ability to send a query to multiple IR engines. GridIR will take Z39.50 further by layering IR on the Grid security and authentication infrastructure, and by providing sophisticated techniques for merging and ranking the results from the engines.

To support the evaluation of the reference implementations, the GridIR WG/RG will promote the development of test suites that can be used to validate an implementation and provide the basis for comparing them.

4. Establish Best Practices for GridIR

The GridIR WG/RG will establish best practices for GridIR implementations and use by collecting and disseminating experiences. Furthermore, the GridIR WG/RG will ensure that the best practices conform with the other Grid Services groups which define services that will be needed to implement GridIR as well as the Portals, Users, and Applications groups that will use the GridIR services.
Name Kevin Gamiel
Email kgamiel@cnidr.org
WebSite www.gridir.org/charter.html

BOF: Service Management Frameworks RG

Date/Time Tue, Jul 23, 2002: 7:30pm - 8:30pm
Location Harris 2 (40)
Area Architecture
Description Topics: Grid/Web Services Support Frameworks;Service Discovery AP; JXTA + Jini; A test-bed for deployment and testing of SMFs;  co-ordination of immediate joint efforts with OGSI, P-2-P, etc. new name: Service Management
Note
Name Steven Newhouse
Email sjn5@doc.ic.ac.uk
WebSite None

BOF: Data Transport Proposed WG

Date/Time Tue, Jul 23, 2002: 6:00pm - 7:00pm
Location Ochil 1 (50)
Area Data
Description This group will look at issues in secure, robust, high performance transport of data.
Note Goals:
Provide a forum where parties interested in the secure, robust, high speed transport of data in the wide area and related technologies can discuss and coordinate issues. Note that this RG and GGF in general do not "promote" research, they simply provide a forum for coordination and standardization. For this reason, we make no exclusion as to what can be discussed.
Ultimately, the test is whether or not sufficient people show interest in a topic. This RG should be a WG "factory" spawning off WGs in areas where sufficient common interest is shown.

This RG is NOT relegated to GridFTP only. It will clearly need to coordinate with the High Performance Networking and Replication Groups.
There is also a high probability that some work developed here MAY need to go to IETF for approval. GridFTP is an example. There is an FTP working group within IETF and once we decide we have the protocol right AND we decide it is appropriate for general internet usage (this is not a forgone conclusion) then we will advance it though the IETF. Similar decisions will be needed for other work spawned from this group.

Projected Tasks:
1) Develop appropriate scenarios to use as guidelines and test cases.
2) Coordinate and interact with replication and high performance networking RGs
3) Agree on operations necessary at remote sites. This will help us understand interfaces and possible protocol support needed.
4) Requirements for a General Transport Protocol (DOC, possible WG)
5) Protocol improvements to V1.0 of GridFTP based on #1 (DOC, Possible WG)
6) Implementation requirements for a Transport system (possible DOC, possible WG)
7) Performance Issues related to high speed, bulk data transport
(presentations)
8) Evaluation of non-TCP based bulk data transport (presentations)

Lifetime:
This RG has an indefinite life time. While it holds value as a forum for discussions and presentations, it will also strive to produce focused WGs that have a limited lifetime and produce standards track documents.
Name Bill Allcock
Email mailto:allcock@mcs.anl.gov
WebSite http://www.gridforum.org/meetings/ggf5/bofs.htm

BOF: Common Schemas for Interoperability - has been combined with Common Information Model (CIM) WG

Date/Time Tue, Jul 23, 2002: 4:30pm - 6:00pm
Location Tinto (200) [note new location, combined with CIM)
Area Performance and Information Services
Description We would like to discuss the possibility of starting a working group to extend the GLUE-schema work for use in the broader GGF community.
Note  
Name Jenny Schopf, Brian Tierney
Email mailto:jms@mcs.anl.gov
WebSite http://www.hicb.org/glue/glue-schema/schema.htm

BOF: Grid Economic Brokering Architecture WG

Date/Time Tue, Jul 23, 2002: 4:30pm - 6:00pm
Location Ochil 1 (50)
Area Scheduling & Resource Management
Description Steven Newhouse, LeSC Technical Director and Jon MacLaren, Manchester Computing
Note Interfaces needed to extensibly support a variety of negotiating mechanisms for the charging of Grid Services deployed within OGSA.
Name Steven Newhouse
Email mailto:sjn5@doc.ic.ac.uk
WebSite www.mcs.anl.gov/~jms/ggf-sched/GGF5

BOF: OGSA Resource Usage Service Proposed WG

Date/Time Tue, Jul 23, 2002: 7:30pm - 8:30pm
Location Tinto (200)
Area Scheduling & Resource Management
Description Steven Newhouse
Note Purpose:
To define an OGSA compatible Resource Usage Service and associated client side and management tools for deployment within an OGSA hosting environment. This service will track resource usage (accounting in the traditional UNIX sense) and will not concern itself with payment for the use of the resource.
Goal:
To enable the tracking of resource usage within Grid Services deployed within an OGSA environment. As the 'resources' that need to be tracked (e.g. CPU, time, memory) may be vary between services and over time an extensible schema will be used to structure this information.
Activity:
a) Definition of service interface to add & search records for accounting information.
b) Defining a security model that protects and individuals right to privacy relating to how they used a service.
c) Define a (minimal but extendsible) set of commonly understood attributes to describe resource usage. (NB: Potentially leverage existing work in the Accounting RG and the Scheduling Dictionary WG.)
Plan:
GGF 5: Initiate discussion of this activity with a BOF and a move to produce a WG charter.
GGF 6: Contribute resource usage cases (from UK Computational Economy project) to build on exisiting information in this area within GGF.
GGF 6: Provide for detailed discussion an intitial specification of this service. (NB: An alpha implementation may be available from UK e-Science activity.)
GGF 7: Present a revised specification for further discussion. (NB: A beta implementation will be available from UK e-science activity.)
GGF 8: Complete initial discussion of service specification for movement through GGF documents process. (NB: A reference implementation of this Resource Usage Service should be available for deployment within an OGSA environment.) 
Name Steven Newhouse
Email sjn5@doc.ic.ac.uk
WebSite www.mcs.anl.gov/~jms/ggf-sched/GGF5

BOF: OGSA Roadmap

Date/Time Tue, Jul 23, 2002: 6:00pm - 7:00pm
Location Pentland Auditorium (600)
Area Architecture
Description A Open Grid Service Architecture BOF, aimed at introducing and defining a new OGSA WG, that would look at things beyond GS Spec
Note  
Name Steve Tuecke
Email mailto:tuecke@mcs.anl.gov
WebSite None

BOF: Usage Record WG

Date/Time Tue, Jul 23, 2002: 6:00pm - 7:00pm
Location Carrick (50)
Area Scheduling and Resource Management
Description In order for resources to be shared, sites must be able to exchange basic usage data in a common format. This group will define a common usage record based on those in current practice.
Note Based on the Scheduler Attribute Document, this working group has the object to define the architecture of a grid scheduler. This definition shall serve as basis for a first implementation of such a grid scheduler. Specifically, we want to discuss the interaction between a grid scheduler and other components like the grid information system, local resource management systems and network management systems. Additionally, we want to address the relationship between hardware resource management and data management. In this session we present a draft for a working group charter and a rough first draft of a document describing this architecture.
Name Laura McGinnis
Email lfm@psc.edu
WebSite www.mcs.anl.gov/~jms/ggf-sched/GGF5/

BOF: Large-site Authentication, Authorization, and Accounting (AAA) Requirements

Date/Time Tue, Jul 23, 2002: 7:30pm - 8:30pm
Location Pentland Auditorium (600)
Area Security
Description BOF to discuss the implications of utilizing the Grid Security Infratructure (GSI) on locally-defined requirements for AAA.
Note Tentative agenda:
Intro and scope 5 min
US Site-AAA Status 15 min
EU Site-AAA Status 15 min
Technical Presentation 15 min
Conclusions and followup 10 min
Name Dane Skow
Email mailto:dane@fnal.gov
WebSite http://www.ppdg.net/pa/ppdg-pa/siteaa/

BOF: Common Information Model (CIM) WG

Date/Time Tue, Jul 23, 2002: 6:00pm - 7:00pm
Location Tinto (200)
Area Performance and Information Services
Description The BoF will evaluate whether CIM can be used as a common Grid Information model which would replace the work on Grid Object Specification activity. A common information model is needed as base of interoperability between the object definitions of the different Grid Working Groups.
Note Early attempts in the Grid Information Services area to define a common grid object specification scheme (GOS) that mainly was based on the LDAP and the XML paradigm have currently lost momentum. The relational database paradigm in a countermove found increasingly interest based on assumptions e.g. that it could better map relations between objects and that it could
better cope with the increasing number of data objects. But the new relational approach also creates new problems that already had been solved in the older approach, like distributedness of the data and access control via the net.

The Common Information Model (CIM), defined by the industrial consortium DMTF (www.dmtf.org) establishes a data model that is aplicable to all entities that exist in the frame of network computing (user, service, computer, policy, etc.) . CIM does not only define attributes (and methods) of these objects (called classes) but also different kind of relationships between classes, that can be devided into three groups: 1.) hierarchical inheritance, 2.) association and 3.) aggregation. With these any number of different relations can be defined, e.g. the relationship between policy-conditions and policy-actions. Besides this flexibility, CIM also defines a number of common standardized objects, like user, service, computer, that are needed also in grid computing. CIM is increasingly being used in commercial information system products. The whole model can be mapped by the LDAP data model, thus LDAP can be used to set up an information system based on CIM.

This BoF wants to evaluate whether a new CIM-LDAP approach for
establishing a common Grid information Service infrastructure would on one hand solve the problems that led to the move to the relational approach (e.g. better mapping of relations) without having to re-solve the problems that already had been solved in the older approach (e.g. distributednes).
Name Peter Gietz, Michael Helm
Email peter.gietz@daasi.de, helm@fionn.es.net
WebSite http://www.daasi.de/wgs/CIMGIS/

BOF: Production Grid Management WG

Date/Time Tue, Jul 23, 2002: 7:30pm - 8:30pm
Location Ochil 1 (50)
Area Applications & Models
Description led by Tony Lisotta
Note Purpose:
To explore interest in establishing a working group that will serve as a forum to establish best practices and standards for the administration of grids. This BOF will bring together grid managers and administrators to discuss issues and problems that have been encountered in making the grid technologies all work together, the problems and concerns that are likely to be encountered, technical as well as non-technical, when moving a grid testbed to the production environment. A successful outcome of this BOF will be the establishment of a working group in this area. The draft charter is below.

Working group charter:
The purpose of this working group is to bring together grid administrators to share experiences and develop best practice and standards documents. This group will explore new paradigms in supporting grids that aspire to become large-scale grids with a large user/application base, but will not exclude the small grid efforts. In addition, this forum can be used to discuss problems and concerns that are likely to be encountered, technical as well as non-technical, when moving a grid testbed to the production environment. This working group should be closely linked with the grid user services group.
Proposed areas to investigate within this working group include : self-configuring grid, developing a standard way to describe a system and its configuration, tools that can be linked to the MDS to learn the location and configuration of a system etc..
 

Draft Agenda for the first BoF:
- Presentation
NASA's experience with deploying the IPG. The grid administrator perspective
DoD's Experience (not confirmed yet)
Sandia's Experience (not confirmed yet)
- Open discussion:
Experiences with taking software developed in the Grid Community and
+ deploying it in a production environment.
+ using it to manage this environment
+ using it to support users
+ using to keep management satisfied
- Other topics to address in this working group
- Analyzing the grid constitution and applying it to your grid
- Keeping supporting software in sync across your grid
- Non-technical issues: It takes more than just technology
- Working Group
+ Draft Charter for a Working Group for comments
+ Volunteers?

Target Audience
Grid Administrators
Grid Managers
Managers (Governance of the Grid)

Name Tony Lisotta
Email lisotta@nas.nasa.gov
WebSite  
 

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