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Options to avoid useless computation #739

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MaxThevenet opened this issue May 5, 2022 · 0 comments
Open

Options to avoid useless computation #739

MaxThevenet opened this issue May 5, 2022 · 0 comments
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component: beam About the beam species component: plasma About the plasma species Parallelization Longitudinal and transverse MPI decomposition performance optimization, benchmark, profiling, etc. pipeline Specific to the implementation of the new pipeline

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@MaxThevenet
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At each time step, the computation could be stopped after the last slice that contains beam particles, the rest is not needed for beam evolution and may be skipped in some cases, if the user is not interested in the full field map.

It would be an occasion to revive option hipace.skip_empty_comms https://github.com/Hi-PACE/hipace/pull/434/files (see if it still works, and if it sometimes provides acceleration). We could keep both options, or only 1 if keeping both makes the code ugly.
@MaxThevenet MaxThevenet added component: plasma About the plasma species component: beam About the beam species performance optimization, benchmark, profiling, etc. Parallelization Longitudinal and transverse MPI decomposition pipeline Specific to the implementation of the new pipeline labels May 5, 2022
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component: beam About the beam species component: plasma About the plasma species Parallelization Longitudinal and transverse MPI decomposition performance optimization, benchmark, profiling, etc. pipeline Specific to the implementation of the new pipeline
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