论文信息 - Algorithm acceleration from GPGPUs for the ATLAS upgrade

Algorithm acceleration from GPGPUs for the ATLAS upgrade

Feasibility studies into the use of General Purpose CPUs have been performed on two key algorithms in the ATLAS High Level Trigger. A GPGPU based version of the Z-finder vertex finding algorithm resulted in over 35 times speed-up over serial CPU execution in the best case scenario, whilst a speed-up of over 5 times was observed from a GPGPU-based Kalman filter track finder routine. The approaches taken for converting these algorithms for execution on GPU devices is described.

P. J. Clark | C. Jones | D. Emeilyanov | M. Rovatsou | A. Washbrook

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