In this talk, I will review some of our experiences implementing the evaluation of multi-loop integrals and multi-loop amplitudes on GPUs using the sector decomposition method. I will highlight recent developments and how they have impacted the performance of this method and I will summarise some of the main lessons learned. Additionally, I will briefly comment on potential avenues/obstacles...
In this talk I will review the stages and parallelization strategies used in NNLO+PS simulations, focusing on the GENEVA Monte-Carlo code. Concentrating on three benchmark processes, Drell-Yan, Higgs production via gluon fusion and diboson production, I will report results of a profiling exercise aimed at identifying the current bottlenecks in each stage that will benefit the most from...
I will briefly report on two distinct attempts to port on GPU an algorithm commonly used in the evaluation of radiative corrections to particle scattering processes:
1) the reconstruction of a rational function, useful in the exact numerical solution of the linear systems typically present in multi-loop calculations;
2) the generation of events via a parton-shower algorithm.
In both cases...
