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www.eu-eela.eu 1Bogotá, EELA-2 1st Conference, 25.02.2009
On the Co-existence ofService and Opportunistic Grids
Francisco Brasileiro
Universidade Federal de Campina Grande – UFCG
E-science grid facility forEurope and Latin America
www.eu-eela.eu 2Bogotá, EELA-2 1st Conference, 25.02.2009
Motivation
• As the grid technology matures, more and more infrastructure enter in production
• Following the sharing spirit of grids, a lot of attention has recently been placed in the interoperation of grid systems
• Most of the interoperability efforts developed so far follow a “bridge” approach– Gateways allow resources of one grid (or the entire
grid) to be exposed as a resource of the other grid– Jobs submitted in one grid can, transparently, end up
being executed in resources of the other grid
www.eu-eela.eu 3Bogotá, EELA-2 1st Conference, 25.02.2009
Motivation
• Most grids currently in production can be classified as either service grids (eg. EGEE, TeraGrid, etc) or opportunistic grids (eg. voluntary computing, desktop grids)
• These are very different systems, catering for different needs, and providing different challenges to users and administrators– Dedicated vs shared resources– Clusters/supercomputers vs desktops– Small vs large number of administrative domains– Well defined QoS levels vs best effort– Complex vs simple management– All sorts of applications vs BoT applications
www.eu-eela.eu 4Bogotá, EELA-2 1st Conference, 25.02.2009
Motivation
• We advocate that co-existence (instead of interoperation) may be, in some cases, a better strategy to explore synergy between grids of different kinds– In particular, the co-existence of a service and an
opportunistic grid allows: Idle resources from the service grid to be used in an
opportunistic way Increase the size and reach of the grid infrastructure with
shared resources More suitable platform to run simple BoT applications,
possibly liberating service grid resources to run essentially the tightly-coupled applications or more sophisticated BoT applications
www.eu-eela.eu 5Bogotá, EELA-2 1st Conference, 25.02.2009
What is an OurGrid-based grid?
Sandboxing
(WM+WN)
Sandboxing
(WM+WN)
User Interface
Application Scheduling
User Interface
Application Scheduling
Resource Centre ManagerGrid-wide Resource SharingResource Centre Manager
Grid-wide Resource Sharing
www.eu-eela.eu 6Bogotá, EELA-2 1st Conference, 25.02.2009
UIJDL
Logging &Logging &Book-keepingBook-keeping
ResourceResourceBrokerBroker
Job SubmissionJob SubmissionServiceService
StorageStorageElementElement
ComputingComputingElementElement
Information Information ServiceService
LFCLFCCatalogCatalog
Author.&Authen.
What are the components of a gLite-based grid?
www.eu-eela.eu 7Bogotá, EELA-2 1st Conference, 25.02.2009
A closer look at the gLite CE
www.eu-eela.eu 8Bogotá, EELA-2 1st Conference, 25.02.2009
Road map for the middlewareco-existence and interoperation
• Allowing idle resources in an EELA-2 gLite resource centre to be exposed as OurGrid resources
www.eu-eela.eu 9Bogotá, EELA-2 1st Conference, 25.02.2009
Road map for the middlewareco-existence and interoperation
• Allowing resources of an OurGrid resource centre to be exposed as gLite resources– This will be achieved in two steps
Firstly, allow clusters to be exposed as a single resource in an OurGrid resource centre
www.eu-eela.eu 10Bogotá, EELA-2 1st Conference, 25.02.2009
Road map for the middlewareco-existence and interoperation
• Allowing resources of an OurGrid resource centre to be exposed as gLite resources– This will be achieved in two steps
Firstly, allow clusters to be exposed as a single resource in an OurGrid resource centre
Secondly, make these resources available at the gLite grid
www.eu-eela.eu 11Bogotá, EELA-2 1st Conference, 25.02.2009
• Latest version of OurGrid just released with support for the exploitation of idle cycles in service grids– Available for download at both:
https://forge.eu-eela.eu/projects/ourgrid-eela/ http://www.ourgrid.org/
– Customized installation guide available for sites already running gLite
• Cluster worker planned for the next release (within a couple of months)
• Evaluate the impact of the co-existence in a production environment
Current status and future work
www.eu-eela.eu 12Bogotá, EELA-2 1st Conference, 25.02.2009
Concluding remarks
• More information on the EELA-2 JRA1 activities at the project’s website:– http://www.eu-eela.eu/
• For OurGrid specifities, visit:– http://www.ourgrid.org/
• Contact me at:– [email protected]
Thanks for your attention!
