GridPP4+ Edinburgh one year extension for staff support

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This proposal, submitted in response to the 2014 invitation from STFC, aimsto provide and operate a computing Grid for the exploitation of LHC data inthe UK. The success of the current GridPP Collaboration will be built upon,and the UK's response to production of LHC data in the period April 2015 toMarch 2016 will be to ensure that there is a sustainable infrastructureproviding "Computing in the LHC era"We propose to operate a Grid as the main mechanism for delivering verylarge-scale computational resources to the UK particle physics community.This foundation will underpin the success and increase the discoverypotential of UK physicists. We will operate a production-quality Grid,delivering robustness, scale and functionality. The proposal is fullyintegrated with international projects and we must exploit the opportunityto capitalise on the UK leadership already established in several areas. TheParticle Physics Grid will increasingly be integrated with national andinternational initiatives.The project will be managed across various domains and will deliver the UK'scommitment to the Worldwide LHC Computing Grid (WLCG) and ensure thatworldwide activities directly benefit the UK.By 2015, the UK Grid infrastructure will have expanded in size to 50,000cores, with more than 30 PetaBytes of storage. This will enable the UK toexploit, in an internationally competitive way, the unique physics potentialof the LHC.