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Add particle resampling inputs to picmi.py #4257

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Sep 7, 2023
Merged

Add particle resampling inputs to picmi.py #4257

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20 changes: 19 additions & 1 deletion Python/pywarpx/picmi.py
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Original file line number Diff line number Diff line change
Expand Up @@ -128,6 +128,16 @@ class Species(picmistandard.PICMI_Species):

warpx_save_particles_at_eb: bool, default=False
Whether to save particles lost at the embedded boundary

warpx_do_resampling: bool, default=False
Whether particles will be resampled

warpx_resampling_trigger_intervals: bool, default=0
Timesteps at which to resample

warpx_resampling_trigger_max_avg_ppc: int, default=infinity
Resampling will be done when the average number of
particles per cell exceeds this number
"""
def init(self, kw):

Expand Down Expand Up @@ -203,6 +213,11 @@ def init(self, kw):
self.save_particles_at_zhi = kw.pop('warpx_save_particles_at_zhi', None)
self.save_particles_at_eb = kw.pop('warpx_save_particles_at_eb', None)

# Resampling settings
self.do_resampling = kw.pop('warpx_do_resampling', None)
self.resampling_trigger_intervals = kw.pop('warpx_resampling_trigger_intervals', None)
self.resampling_triggering_max_avg_ppc = kw.pop('warpx_resampling_trigger_max_avg_ppc', None)

def initialize_inputs(self, layout,
initialize_self_fields = False,
injection_plane_position = None,
Expand Down Expand Up @@ -238,7 +253,10 @@ def initialize_inputs(self, layout,
do_not_deposit = self.do_not_deposit,
do_not_push = self.do_not_push,
do_not_gather = self.do_not_gather,
random_theta = self.random_theta)
random_theta = self.random_theta,
do_resampling=self.do_resampling,
resampling_trigger_intervals=self.resampling_trigger_intervals,
resampling_trigger_max_avg_ppc=self.resampling_triggering_max_avg_ppc)

# add reflection models
self.species.add_new_attr("reflection_model_xlo(E)", self.reflection_model_xlo)
Expand Down
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