The GridPP project in the UK has a long-standing policy of supporting non-LHC VOs with 10% of the provided resources. Up until recently this had only been taken up be a very limited set of VOs, mainly due to a combination of the (perceived) large overhead of getting started, the limited computing support within non-LHC VOs and the ability to fulfill their computing requirements on local batch farms.
In the past year, increased computing requirements and a general tendency for more centralised
computing resources including cloud technologies has lead a number of small VOs to reevaluate their strategy.
In response to this, the GridPP project commissioned a multi-VO DIRAC server to act as a unified interface to all its grid and cloud resources. This was then offered as a service to a number of small VOs. Six VOs, four of which were completely new to the grid and two transitioning from a glite/WMS based model, have so far taken up the offer and have used the (mainly) UK grid/cloud infrastructure to complete a significant amount of work each in the last 6 months.
In this talk we present the varied approaches taken by each VO, the support issues arising from these and how these can be re-used by other new communities in the future.
|Tertiary Keyword (Optional)||Computing middleware|
|Secondary Keyword (Optional)||Experience/plans from outside experimental HEP/NP|
|Primary Keyword (Mandatory)||Distributed workload management|