adam_prism_fnl_pic_object

ADAM, PRISM Particle-in-Cell definition, FNL backend.

Source: src/app/prism/fnl/adam_prism_fnl_pic_object.F90

Dependencies

Contents

• prism_fnl_pic_object
• particle_cartesian_grid_index_interface_dev
• particle_weighting_interface_dev
• current_weighting_interface_dev
• field_weighting_interface_dev
• destroy
• copy_cpu_gpu
• copy_gpu_cpu
• copy_q_pic_gpu_cpu
• initialize
• migrate_particles_dev
• particle_cartesian_grid_index_dev_impl
• NGP_charge_weighting_dev
• CIC_charge_weighting_dev
• TSC_charge_weighting_dev
• cubic_charge_weighting_dev
• quartic_charge_weighting_dev
• quintic_charge_weighting_dev
• sextic_charge_weighting_dev
• Gaussian_charge_weighting_dev
• NGP_current_weighting_dev
• CIC_current_weighting_dev
• TSC_current_weighting_dev
• cubic_current_weighting_dev
• quartic_current_weighting_dev
• quintic_current_weighting_dev
• sextic_current_weighting_dev
• Gaussian_current_weighting_dev
• zeroD_field_weighting_dev
• oneD_field_weighting_dev
• twoD_field_weighting_dev
• threeD_field_weighting_dev
• fourD_field_weighting_dev
• fiveD_field_weighting_dev
• sixD_field_weighting_dev
• Gaussian_field_weighting_dev
• deposit_bspline_charge_dev
• deposit_gaussian_charge_dev
• deposit_bspline_current_dev
• deposit_gaussian_current_dev
• gather_bspline_fields_dev
• gather_gaussian_fields_dev
• bspline_closed_weights_dev
• set_bspline_stencil_dev
• effective_bspline_weight_dev
• gaussian_weight_dev
• effective_gaussian_weight_dev
• bspline_weight_dev

Variables

Name	Type	Attributes	Description
PIC_VARIABLES_NUMBER	integer(kind=I4P)	parameter
PIC_FIELDS_NUMBER	integer(kind=I4P)	parameter
PIC_NEIGHBOURS_NUMBER	integer(kind=I4P)	parameter

Derived Types

prism_fnl_pic_object

Components

Name	Type	Attributes	Description
q_pic_gpu	real(kind=R8P)	pointer	PIC variables on device [particle, variable].
pic_fields_gpu	real(kind=R8P)	pointer	Fields at particle locations on device [particle, field].
neighbour_list_gpu	integer(kind=I4P)	pointer	Particle-cell map on device [particle, entry].
db2_q_pic	integer(kind=I4P)		Device bounds for q_pic_gpu.
hb2_q_pic	integer(kind=I4P)		Host bounds for q_pic.
db2_pic_fields	integer(kind=I4P)		Device bounds for pic_fields_gpu.
hb2_pic_fields	integer(kind=I4P)		Host bounds for pic_fields.
db2_neighbour_list	integer(kind=I4P)		Device bounds for neighbour_list_gpu.
hb2_neighbour_list	integer(kind=I4P)		Host bounds for neighbour_list.
buf_q_pic_R8P	real(kind=R8P)	allocatable	Host buffer with device layout for q_pic copies.
buf_pic_fields_R8P	real(kind=R8P)	allocatable	Host buffer with device layout for pic_fields copies.
buf_neighbour_list_I4P	integer(kind=I4P)	allocatable	Host buffer with device layout for neighbour_list copies.
mig_index_gpu	integer(kind=I4P)	pointer	Migration: ownership flags, then indexes [capacity*2].
mig_buffer_gpu	real(kind=R8P)	pointer	Migration: packed particles [capacity*variables].
sigma	real(kind=R8P)		Standard deviation for Gaussian weighting.
cutoff_sigma	real(kind=R8P)		Gaussian cutoff radius in sigma units.
gaussian_support_cells	integer(kind=I4P)		Gaussian compact support radius in cells.
filter_deposition	logical		Apply binomial filtering to particle weighting.
stencil_radius	integer(kind=I4P)		Max cells reached by deposit/gather stencils (multi-block check).
particle_number	integer(kind=I4P)		Total number of particles.
n_ions	integer(kind=I4P)		Total ions number.
n_electrons	integer(kind=I4P)		Total electrons number.
n_neutrals	integer(kind=I4P)		Total neutrals number.
particle_cartesian_grid_index_dev	procedure(particle_cartesian_grid_index_interface_dev)	pass(self), pointer
particle_weighting_dev	procedure(particle_weighting_interface_dev)	pass(self), pointer
current_weighting_dev	procedure(current_weighting_interface_dev)	pass(self), pointer
field_weighting_dev	procedure(field_weighting_interface_dev)	pass(self), pointer

Type-Bound Procedures

Name	Attributes	Description
copy_cpu_gpu	pass(self)
copy_gpu_cpu	pass(self)
copy_q_pic_gpu_cpu	pass(self)
destroy	pass(self)
initialize	pass(self)
migrate_particles_dev	pass(self)
particle_cartesian_grid_index_dev_impl	pass(self)
NGP_charge_weighting_dev	pass(self)
CIC_charge_weighting_dev	pass(self)
TSC_charge_weighting_dev	pass(self)
cubic_charge_weighting_dev	pass(self)
quartic_charge_weighting_dev	pass(self)
quintic_charge_weighting_dev	pass(self)
sextic_charge_weighting_dev	pass(self)
Gaussian_charge_weighting_dev	pass(self)
NGP_current_weighting_dev	pass(self)
CIC_current_weighting_dev	pass(self)
TSC_current_weighting_dev	pass(self)
cubic_current_weighting_dev	pass(self)
quartic_current_weighting_dev	pass(self)
quintic_current_weighting_dev	pass(self)
sextic_current_weighting_dev	pass(self)
Gaussian_current_weighting_dev	pass(self)
zeroD_field_weighting_dev	pass(self)
oneD_field_weighting_dev	pass(self)
twoD_field_weighting_dev	pass(self)
threeD_field_weighting_dev	pass(self)
fourD_field_weighting_dev	pass(self)
fiveD_field_weighting_dev	pass(self)
sixD_field_weighting_dev	pass(self)
Gaussian_field_weighting_dev	pass(self)

Interfaces

particle_cartesian_grid_index_interface_dev

particle_weighting_interface_dev

current_weighting_interface_dev

field_weighting_interface_dev

Subroutines

destroy

Free device and host staging data owned by this object.

subroutine destroy(self)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout		PIC object on device.

Call graph

copy_cpu_gpu

Copy PIC data from CPU to GPU.

subroutine copy_cpu_gpu(self, pic, q_pic, pic_fields, verbose)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout		PIC object on device.
pic	class(prism_pic_object)	in		PIC object on host.
q_pic	real(kind=R8P)	in	target	PIC variables on host.
pic_fields	real(kind=R8P)	in	target	Fields at particle locations on host.
verbose	logical	in	optional	Trigger verbose output.

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copy_gpu_cpu

Copy PIC data from GPU to CPU.

subroutine copy_gpu_cpu(self, pic, q_pic, pic_fields, verbose)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout		PIC object on device.
pic	class(prism_pic_object)	inout		PIC object on host.
q_pic	real(kind=R8P)	inout	target	PIC variables on host.
pic_fields	real(kind=R8P)	inout	target	Fields at particle locations on host.
verbose	logical	in	optional	Trigger verbose output.

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copy_q_pic_gpu_cpu

Copy only PIC particle state from GPU to CPU.

subroutine copy_q_pic_gpu_cpu(self, q_pic, verbose)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout		PIC object on device.
q_pic	real(kind=R8P)	inout	target	PIC variables on host.
verbose	logical	in	optional	Trigger verbose output.

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initialize

Initialize PIC device mirrors and dispatch hooks.

subroutine initialize(self, pic, q_pic, pic_fields)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout		PIC object on device.
pic	type(prism_pic_object)	in		PIC object on host.
q_pic	real(kind=R8P)	in	target	PIC variables on host.
pic_fields	real(kind=R8P)	in	target	Fields at particle locations on host.

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migrate_particles_dev

Hand the particles that left the local blocks to the owner ranks (end of a time step). Device twin of prism_pic_object%migrate_particles: the ownership flags and the compaction indexes go through the host (deterministic order), the particles are packed, moved and appended on the device; the departing ones travel through the host (prism_pic_object%exchange_particles, MPI_Allgatherv). The host pic%particle_number is updated as well. Collective; with one rank it is a no-op.

subroutine migrate_particles_dev(self, pic, field_fnl, field, grid)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout		PIC object on device.
pic	type(prism_pic_object)	inout		PIC object on host.
field_fnl	type(field_fnl_object)	in		Device field helper.
field	type(field_object)	in		Host field helper.
grid	type(grid_object)	in		Host grid helper.

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particle_cartesian_grid_index_dev_impl

Compute the grid index corresponding to a particle position. Good for cartesian grids only. CPU twin: prism_pic_object%particle_cartesian_grid_index (ownership first, then the ghost halo of a local block within halo_margin cells; owned_only skips the halo search and leaves non-owned particles with a zero row, without errors).

subroutine particle_cartesian_grid_index_dev_impl(self, field_fnl, field, grid, q_pic_gpu, owned_only)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout		PIC object on device.
field_fnl	type(field_fnl_object)	in		Device field helper.
field	type(field_object)	in		Host field helper.
grid	type(grid_object)	in		Host grid helper.
q_pic_gpu	real(kind=R8P)	in		PIC variables on device.
owned_only	logical	in	optional	Locate owned particles only, no halo search.

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NGP_charge_weighting_dev

Nearest Grid Point weighting of particle charge density to the grid.

subroutine NGP_charge_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout		PIC object on device.
field_fnl	type(field_fnl_object)	in		Device field helper.
field	type(field_object)	in		Host field helper.
grid	type(grid_object)	in		Host grid helper.
q_gpu	real(kind=R8P)	inout		Field variables on device.
q_pic_gpu	real(kind=R8P)	in		PIC variables on device.
nv	integer(kind=I4P)	in		Charge variable index.

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CIC_charge_weighting_dev

Cloud-in-Cell weighting of particle charge density to the grid.

subroutine CIC_charge_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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TSC_charge_weighting_dev

Triangular-Shaped-Cloud weighting of particle charge density to the grid.

subroutine TSC_charge_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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cubic_charge_weighting_dev

Cubic B-spline weighting of particle charge density to the grid.

subroutine cubic_charge_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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quartic_charge_weighting_dev

Quartic B-spline weighting of particle charge density to the grid.

subroutine quartic_charge_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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quintic_charge_weighting_dev

Quintic B-spline weighting of particle charge density to the grid.

subroutine quintic_charge_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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sextic_charge_weighting_dev

Sextic B-spline weighting of particle charge density to the grid.

subroutine sextic_charge_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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Gaussian_charge_weighting_dev

Gaussian weighting of particle charge density to the grid.

subroutine Gaussian_charge_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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NGP_current_weighting_dev

Nearest Grid Point weighting of particle current density to the grid.

subroutine NGP_current_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

Call graph

CIC_current_weighting_dev

Cloud-in-Cell weighting of particle current density to the grid.

subroutine CIC_current_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

Call graph

TSC_current_weighting_dev

Triangular-Shaped-Cloud weighting of particle current density to the grid.

subroutine TSC_current_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

Call graph

cubic_current_weighting_dev

Cubic B-spline weighting of particle current density to the grid.

subroutine cubic_current_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

Call graph

quartic_current_weighting_dev

Quartic B-spline weighting of particle current density to the grid.

subroutine quartic_current_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

Call graph

quintic_current_weighting_dev

Quintic B-spline weighting of particle current density to the grid.

subroutine quintic_current_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

Call graph

sextic_current_weighting_dev

Sextic B-spline weighting of particle current density to the grid.

subroutine sextic_current_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

Call graph

Gaussian_current_weighting_dev

Gaussian weighting of particle current density to the grid.

subroutine Gaussian_current_weighting_dev(self, field_fnl, field, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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zeroD_field_weighting_dev

Zeroth-order spatial interpolation of cell-centered fields to particle locations.

subroutine zeroD_field_weighting_dev(self, field_fnl, field, grid, pic_fields_gpu, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
pic_fields_gpu	real(kind=R8P)	inout
q_gpu	real(kind=R8P)	in
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

Call graph

oneD_field_weighting_dev

First-order spatial interpolation of cell-centered fields to particle locations.

subroutine oneD_field_weighting_dev(self, field_fnl, field, grid, pic_fields_gpu, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
pic_fields_gpu	real(kind=R8P)	inout
q_gpu	real(kind=R8P)	in
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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twoD_field_weighting_dev

Second-order spatial interpolation of cell-centered fields to particle locations.

subroutine twoD_field_weighting_dev(self, field_fnl, field, grid, pic_fields_gpu, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
pic_fields_gpu	real(kind=R8P)	inout
q_gpu	real(kind=R8P)	in
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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threeD_field_weighting_dev

Third-order spatial interpolation of cell-centered fields to particle locations.

subroutine threeD_field_weighting_dev(self, field_fnl, field, grid, pic_fields_gpu, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
pic_fields_gpu	real(kind=R8P)	inout
q_gpu	real(kind=R8P)	in
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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fourD_field_weighting_dev

Fourth-order spatial interpolation of cell-centered fields to particle locations.

subroutine fourD_field_weighting_dev(self, field_fnl, field, grid, pic_fields_gpu, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
pic_fields_gpu	real(kind=R8P)	inout
q_gpu	real(kind=R8P)	in
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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fiveD_field_weighting_dev

Fifth-order spatial interpolation of cell-centered fields to particle locations.

subroutine fiveD_field_weighting_dev(self, field_fnl, field, grid, pic_fields_gpu, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
pic_fields_gpu	real(kind=R8P)	inout
q_gpu	real(kind=R8P)	in
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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sixD_field_weighting_dev

Sixth-order spatial interpolation of cell-centered fields to particle locations.

subroutine sixD_field_weighting_dev(self, field_fnl, field, grid, pic_fields_gpu, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
pic_fields_gpu	real(kind=R8P)	inout
q_gpu	real(kind=R8P)	in
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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Gaussian_field_weighting_dev

Gaussian interpolation of cell-centered fields to particle locations.

subroutine Gaussian_field_weighting_dev(self, field_fnl, field, grid, pic_fields_gpu, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	inout
field_fnl	type(field_fnl_object)	in
field	type(field_object)	in
grid	type(grid_object)	in
pic_fields_gpu	real(kind=R8P)	inout
q_gpu	real(kind=R8P)	in
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

Call graph

deposit_bspline_charge_dev

Deposit particle charge density with centered cardinal B-splines.

subroutine deposit_bspline_charge_dev(self, field_fnl, grid, q_gpu, q_pic_gpu, nv, order)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	in
field_fnl	type(field_fnl_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in
order	integer(kind=I4P)	in

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deposit_gaussian_charge_dev

Deposit particle charge density with Gaussian support.

subroutine deposit_gaussian_charge_dev(self, field_fnl, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	in
field_fnl	type(field_fnl_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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deposit_bspline_current_dev

Deposit particle current density with centered cardinal B-splines.

subroutine deposit_bspline_current_dev(self, field_fnl, grid, q_gpu, q_pic_gpu, nv, order)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	in
field_fnl	type(field_fnl_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in
order	integer(kind=I4P)	in

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deposit_gaussian_current_dev

Deposit particle current density with Gaussian support.

subroutine deposit_gaussian_current_dev(self, field_fnl, grid, q_gpu, q_pic_gpu, nv)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	in
field_fnl	type(field_fnl_object)	in
grid	type(grid_object)	in
q_gpu	real(kind=R8P)	inout
q_pic_gpu	real(kind=R8P)	in
nv	integer(kind=I4P)	in

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gather_bspline_fields_dev

Gather cell-centered fields at particle locations with centered cardinal B-splines.

subroutine gather_bspline_fields_dev(self, field_fnl, grid, pic_fields_gpu, q_gpu, q_pic_gpu, order)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	in
field_fnl	type(field_fnl_object)	in
grid	type(grid_object)	in
pic_fields_gpu	real(kind=R8P)	inout
q_gpu	real(kind=R8P)	in
q_pic_gpu	real(kind=R8P)	in
order	integer(kind=I4P)	in

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gather_gaussian_fields_dev

Gather cell-centered fields at particle locations with Gaussian support.

subroutine gather_gaussian_fields_dev(self, field_fnl, grid, pic_fields_gpu, q_gpu, q_pic_gpu)

Arguments

Name	Type	Intent	Attributes	Description
self	class(prism_fnl_pic_object)	in
field_fnl	type(field_fnl_object)	in
grid	type(grid_object)	in
pic_fields_gpu	real(kind=R8P)	inout
q_gpu	real(kind=R8P)	in
q_pic_gpu	real(kind=R8P)	in

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bspline_closed_weights_dev

Close the n (<=7) unfiltered B-spline weights of one stencil to sum to 1 by changing only the largest one. CPU twin: bspline_closed_weights (same evaluation and summation order).

Attributes: pure

subroutine bspline_closed_weights_dev(order, x_p, x_cell, n, dx, w, pu_error)

Arguments

Name	Type	Intent	Attributes	Description
order	integer(kind=I4P)	in		B-spline order (0=NGP ... 6=sextic).
x_p	real(kind=R8P)	in		Particle coordinate.
x_cell	real(kind=R8P)	in		Cell centers of the stencil (1:n used).
n	integer(kind=I4P)	in		Stencil cells.
dx	real(kind=R8P)	in		Cell size.
w	real(kind=R8P)	out		Closed weights (1:n set, the rest 0).
pu_error	real(kind=R8P)	out		|raw sum - 1| before the closure.

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set_bspline_stencil_dev

Compute the one-dimensional B-spline stencil.

Attributes: pure

subroutine set_bspline_stencil_dev(order, x_p, x_c, i_p, i_min, i_max)

Arguments

Name	Type	Intent	Attributes	Description
order	integer(kind=I4P)	in
x_p	real(kind=R8P)	in
x_c	real(kind=R8P)	in
i_p	integer(kind=I4P)	in
i_min	integer(kind=I4P)	out
i_max	integer(kind=I4P)	out

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Functions

effective_bspline_weight_dev

Return the optionally binomial-filtered one-dimensional B-spline weight.

Attributes: pure

Returns: real(kind=R8P)

function effective_bspline_weight_dev(order, r, filter) result(weight)

Arguments

Name	Type	Intent	Attributes	Description
order	integer(kind=I4P)	in
r	real(kind=R8P)	in
filter	logical	in

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gaussian_weight_dev

Return an unnormalized one-dimensional Gaussian weight with compact cutoff.

Attributes: pure

Returns: real(kind=R8P)

function gaussian_weight_dev(r, cutoff_limit) result(weight)

Arguments

Name	Type	Intent	Attributes	Description
r	real(kind=R8P)	in
cutoff_limit	real(kind=R8P)	in

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effective_gaussian_weight_dev

Return the optionally binomial-filtered one-dimensional Gaussian weight.

Attributes: pure

Returns: real(kind=R8P)

function effective_gaussian_weight_dev(r, shift, cutoff_limit, filter) result(weight)

Arguments

Name	Type	Intent	Attributes	Description
r	real(kind=R8P)	in
shift	real(kind=R8P)	in
cutoff_limit	real(kind=R8P)	in
filter	logical	in

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bspline_weight_dev

Return the centered cardinal B-spline weight.

Attributes: pure

Returns: real(kind=R8P)

function bspline_weight_dev(order, r) result(weight)

Arguments

Name	Type	Intent	Attributes	Description
order	integer(kind=I4P)	in
r	real(kind=R8P)	in

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