Campus Grids and fEC (1) How to persuade Depts/others to donate CPU resources –Bartering/exchange of other resources (as OeRC) –development of ‘Tokens’ –Use for federated Grids (between institutions) Direct charging for resources –Need to calibrate resource value ‘Standard Unit of Processing’ –OMII ‘GLUE’ schema: “measures everything measurable” Not all CPU/hours are the same

Campus Grids and fEC (2) Direct Charging… –How to estimate resources required? –Need free access to development/test area then pay for production use How to support and encourage new users and new communities/disciplines?

Campus Grids and fEC (3) Condor-based Campus Grids –Electricity as hidden cost –Who ultimately pays? –Who should pay? –What else are target machines being used for? –Different concerns for centrally-managed and hosted Pools, and others –‘Best Efforts’ staff support unsustainable