23.06.2008

Grid Experiments AdvancesGrid Experiments Advances

May 23May 23rdrd 2008 2008

Torsten Eymann Torsten Eymann

Tina BalkeTina Balke

Stefan KönigStefan König

2Grid Experiment Advances – UBT23.06.2008

Classification of Grid Experiments in the Whitebook Context

Grids are one application to the Theories and Experiments conducted in the project

Design Questions:Overall Question: Is it possible to improve Grid-Systems with the help of Reputation? How to measure consequences of reputational information in Grids? Measures of Performance (indicators can be found in the Wiki (http://megatron.iiia.csic.es/mediawiki/index.php/White_Book/Theory_Introduction - Design Questions section)

Technology (II)Technology (II)

3Grid Experiment Advances – UBT23.06.2008

Conference Advertising

Cfp sent to different relevant projects and communities, e.g.

AssessGrid: http://www.assessgrid.eu/index.php?id=466

GridTrust

NESSI

CoreGrid

D-Grid

SORMA, CATNETS

4Grid Experiment Advances – UBT23.06.2008

The Grid Experiment Market Structurehttp://megatron.iiia.csic.es/mediawiki/index.php/Decisions_on_Grid_Requirements

Market structure based on CATNETS experiencesfour types of players, which act on two interrelated markets

Basic Service Market Resource Market

Auction Auction

Demand (externally

given by principal)

Resource Agent (RA)

Basic Service Agent (BSA)

Complex Service Agent

(CSA)Supply Supply

DemandDemand

Reputation Reputation

5Grid Experiment Advances – UBT23.06.2008

Grid Experiments Auction Mechanismhttp://megatron.iiia.csic.es/mediawiki/index.php/Decisions_on_Grid_Requirements

Auction mechanism is to be used on Basic Service as well as Resource MarketSeveral auction protocols possible,we start with the English ActionWithin one protocol, only one auction at a time (queuing)

m…n

…

CDA

Dutch Auction

English Auction

CSA1_Site 1

CSA2_Site3

…

Bidders

auctioneer: highest_bid to all registered agents (+ winner)

after auction: logging of (time; own_ID; winner_ID, own_bid)

BSA1_Site0 BSA0_Site3 …

Provider Queue

6Grid Experiment Advances – UBT23.06.2008

Grid Prototype – current status

Deliverable is due in Month 28 (End of July)

Auctions are already implemented, there is still work to be done regarding the agents’ budget, service execution and agents’ strategies