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Following the air on GPUs
A team of researchers led by Katherine Osterried (C2SM) and Stefan Rüdisühli (Atmospheric Circulation Group) participated in the CSCS GPU Hackathon with the COSMO online parcel trajectory module. They succesfully migrated the code to GPUs and thereby reduced the computation time on PizDaint by a factor of 30. This speed-up is an important prerequisite to enable high-resolution Lagrangian studies of, for example cloud-circulation interactions or Alpine valley flows, on climatological time scales.