Paolo Calafiura (LBNL) HL-LHC Computing Challenges

The current models for HL-LHC computing show order-of-magnitude resource shortages with large uncertainties. Business-as-usual is not an option unless we accept limiting HL-LHC physics reach, particularly for precision studies.

A  grassroots initiative called the HEP Software Foundation has been collecting ideas and pooling efforts to perform the necessary R&D to meet these O($100M) resource shortages. HSF produced a Community White Paper that has been endorsed by the LHC experiments, the Worldwide LHC Computing Grid, and some funding agencies.

 I will briefly review some of the technical and organizational challenges ahead of us as we turn the Community White Paper into a research program, and try to present some of the exciting new R&D ideas we are prototyping at Berkeley Lab and elsewhere.