1 / 10

Grid is a Bazaar of Resource Providers and Virtual Organizations

Tomasz Szepieniec, Anna Pagacz ACC CYFRONET AGH Cracow Grid Workshop, Cracow , 16th October 2007. Grid is a Bazaar of Resource Providers and Virtual Organizations. Grid is a Bazaar.

neil-solomon
Download Presentation

Grid is a Bazaar of Resource Providers and Virtual Organizations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Tomasz Szepieniec, Anna Pagacz ACC CYFRONET AGH Cracow Grid Workshop, Cracow, 16thOctober 2007 Grid is a Bazaarof Resource Providers and Virtual Organizations

  2. Grid is a Bazaar Tomasz.Szepieniec@cyfronet.pl - Grid is a Bazaar.. - CGW07 • Grid Checklist by Ian Foster: A Grid is a system that: coordinates resources that are not subject to centralized control [..] • Definition of grid by Vaidy Sunderam: A paradigm/infrastructure that enables the sharing, selection, & aggregation of geographically distributed resources (multiple administrative domains)[..] • Policy to provide support require links between PEOPLE! • We cannot avoid this! • Consider existing numbers in EGEE: • ~200 Sites • ~100 active VOs • The process of finding suitable resources, negotiating support on sites, configuring support VO on sites, validating the configuration,…… require even more complicated interaction than bazaar

  3. Communication – well defined robust procedures User / VO Manager Resource Provider Motivation – mechanism that make RP interested to provide resources Tomasz.Szepieniec@cyfronet.pl - Grid is a Bazaar.. - CGW07

  4. How this works in EGEE? Tomasz.Szepieniec@cyfronet.pl - Grid is a Bazaar.. - CGW07 • Once a VO registration has been approved by theOAG, the ROC managersas representatives of theRCs in their federation, will find a RC willing to hostthe VO's VOMS serverand authorise the VO ona very restricted set of resources. [..]. The OAG willwork with you in parallel to arrange more permanent resources[..] • To obtainmore resources, the VO manager will have to interact with the OAG and the ROCs. • From EGEEII Review Presentation Erwin Laure - Major Issues: • - Allocation of resources, in particular to new VOs. • From EGEEII periodic report (SA1 part): • „VO must get access to resources […]. Until now this allocation of resources to new VO is not working very well. For the smaller VOs, it is very difficult to negotiate with the resource centres separately”

  5. Tomasz.Szepieniec@cyfronet.pl - Grid is a Bazaar.. - CGW07 Typical Scenarios Consider the following scenarios: VO already supported by sites needs more computing power for 1 month starting from next week VO needs increase storage/CPU ratio, so they want to negotiate this with 20 sites and track the process of enabling this RC needs resources for new VO and wants to cut (re-negotiate) resources for already supported VOs. In each case we have negotiations, agreement, re-configuration and approval We need efficient procedure in each case!

  6. Tomasz.Szepieniec@cyfronet.pl - Grid is a Bazaar.. - CGW07 Process Definition Based on Direct Communication • VO opens a call (project) for resources and publish it to RCs • RC Manager can answer to call by proposing a contract • Contract is a negotiated aggrement between single RC and VO • Changing contract state requires both VO and RC acceptance

  7. Need of a Collaboration Tool Tomasz.Szepieniec@cyfronet.pl - Grid is a Bazaar.. - CGW07 • Many contracts per each VO and RC that would change over time -> we need some tool to manage complexity • Requirements for Bazaar tool: • Support for communication including negotiations • Clear view on VO and RC policy • Tracking of executing a contracts and projects • Possibility to provide feedback about sites and VO • Possibility of integration with grid accounting tool • Easy to use

  8. Negotiations in Bazaar Portal • Both parties could propose changes to the 'contract' • In this case other party is notified and can accept/reject or continue negotiation of each contract item • Number of rounds is not limited Tomasz.Szepieniec@cyfronet.pl - Grid is a Bazaar.. - CGW07

  9. Status of Bazaar implementation Tomasz.Szepieniec@cyfronet.pl - Grid is a Bazaar.. - CGW07 • Bazaar v.1.0 is expected to be released until end of 2007, including: • Project and contract management • Tracking of negotiation process • E-mail Notification for VO and RC managers • View on policies • Feedback about contract configuration execution • Deployment: • Bazaar is being integrated with EGEE CIC Portal and EGEE GOC DB for proper role assignment (according certificates) • It is agreed to use Bazaar in Central European region • There are plans to introduce Bazaar to PL-Grid

  10. Summary Tomasz.Szepieniec@cyfronet.pl - Grid is a Bazaar.. - CGW07 Grid is a Bazaar • Real grids require efficient collaboration between VO and RC • We defined the process of resources allocation • We developed the Bazaar Portal that implement the process http://grid.cyfronet.pl/bazaar

More Related