#include <magnetic_field.hpp>

Collaboration diagram for MagneticField< Device >:

Public Member Functions
	MagneticField (double bt_sign_in, double bp_sign_in, int ff_step_in, int ff_order_in, double bd_min_r_in, double bd_max_r_in, double bd_min_z_in, double bd_max_z_in, double inpsi_in, double outpsi_in, double rc_in, double zc_in, BicubCoeff acoeff_in, int nr_in, int nz_in, double rmin_in, double zmin_in, double dr_inv_in, double dz_inv_in, OneDCoeff one_d_cub_acoef_in, int ncoeff_in, double max_psi_in, double min_psi_in, double one_d_cub_dpsi_inv_in, double eq_min_r, double eq_max_r, double eq_min_z, double eq_max_z, double eq_x_psi, double epsil_psi, double eq_x_r, double eq_x_slope, double eq_x_z, double eq_x2_r, double eq_x2_slope, double eq_x2_z, double eq_x2_psi, double eq_axis_r, double eq_axis_z, int eq_mpsi)

	MagneticField (NLReader::NamelistReader &nlr, const MagneticEquilFiles &equil_files, const View< Equil::XPoint *, HostType > &xpts)

	MagneticField (const MagneticField< HostType > &magnetic_field_h)

	MagneticField (PsiOption psi_opt, double safety_factor_coeff=1.0, int eq_mr_in=-1, int eq_mz_in=-1, int eq_mpsi_in=-1)

	MagneticField ()

KOKKOS_INLINE_FUNCTION void	get_psi (const SimdVector2D &x, Simd< double > &psi_out) const

KOKKOS_INLINE_FUNCTION double	I_value (double psi_in, int rgn3) const

KOKKOS_INLINE_FUNCTION double	I_deriv (double psi_in, int rgn3) const

KOKKOS_INLINE_FUNCTION void	field (const SimdVector2D &x, SimdVector &bvec, SimdVector(&jacb)[3], Simd< double > &psivec, SimdVector2D &gradpsi, SimdVector &tdb, Simd< bool > &rz_outside) const

KOKKOS_INLINE_FUNCTION void	bvec_interpol (double r, double z, double phi, double &br, double &bz, double &bphi) const

KOKKOS_INLINE_FUNCTION void	bmag_interpol (const SimdVector &v, Simd< double > &bmag) const

KOKKOS_INLINE_FUNCTION void	bmag_interpol (const SimdVector2D &x, const Simd< double > &phi, Simd< double > &bmag) const

KOKKOS_INLINE_FUNCTION void	follow_field (const SimdVector2D &x_org, const Simd< double > &phi_org, const Simd< double > &phi_dest, SimdVector2D &x_dest) const

template<>
	MagneticField (NLReader::NamelistReader &nlr, const MagneticEquilFiles &equil_files, const View< Equil::XPoint *, HostType > &xpts)

template<>
	MagneticField (const MagneticField< HostType > &h)

Public Attributes
double	bt_sign
	Whether toroidal field is reversed? More...

double	bp_sign
	Whether poloidal field is reversed? More...

int	ff_step
	Number of steps taken when projecting the particle location onto the midplane. More...

int	ff_order
	Order of RK scheme used for field following. Can be 1, 2, or 4. More...

double	bd_min_r
	Minimum r (of what exactly?) More...

double	bd_max_r
	Maximum r (of what exactly?) More...

double	bd_min_z
	Minimum z (of what exactly?) More...

double	bd_max_z
	Maximum z (of what exactly?) More...

double	inpsi
	Boundary condition used in a few spots. More...

double	outpsi
	Boundary condition used in a few spots. More...

Bicub< Device >	psi_bicub
	The object for interpolating psi (magnetic flux surfaces) More...

CubInterp< Device >	I_interp
	The object for interpolating I (for deriving toroidal magnetic field) More...

Equilibrium	equil
	The object containing information about the magnetic equilibrium. More...

Private Member Functions
KOKKOS_INLINE_FUNCTION void	derivs (const double(&x)[2], double phi, double(&dx)[2]) const

Constructor & Destructor Documentation

template<class Device >

MagneticField< Device >::MagneticField	(	double	bt_sign_in,
		double	bp_sign_in,
		int	ff_step_in,
		int	ff_order_in,
		double	bd_min_r_in,
		double	bd_max_r_in,
		double	bd_min_z_in,
		double	bd_max_z_in,
		double	inpsi_in,
		double	outpsi_in,
		double *	rc_in,
		double *	zc_in,
		BicubCoeff *	acoeff_in,
		int	nr_in,
		int	nz_in,
		double	rmin_in,
		double	zmin_in,
		double	dr_inv_in,
		double	dz_inv_in,
		OneDCoeff *	one_d_cub_acoef_in,
		int	ncoeff_in,
		double	max_psi_in,
		double	min_psi_in,
		double	one_d_cub_dpsi_inv_in,
		double	eq_min_r,
		double	eq_max_r,
		double	eq_min_z,
		double	eq_max_z,
		double	eq_x_psi,
		double	epsil_psi,
		double	eq_x_r,
		double	eq_x_slope,
		double	eq_x_z,
		double	eq_x2_r,
		double	eq_x2_slope,
		double	eq_x2_z,
		double	eq_x2_psi,
		double	eq_axis_r,
		double	eq_axis_z,
		int	eq_mpsi
	)

Constructor for magnetic field

template<class Device>

MagneticField< Device >::MagneticField	(	NLReader::NamelistReader &	nlr,
		const MagneticEquilFiles &	equil_files,
		const View< Equil::XPoint *, HostType > &	xpts
	)

inline

template<class Device>

MagneticField< Device >::MagneticField ( const MagneticField< HostType > & magnetic_field_h )

inline

template<class Device>

MagneticField< Device >::MagneticField	(	PsiOption	psi_opt,
		double	safety_factor_coeff = `1.0`,
		int	eq_mr_in = `-1`,
		int	eq_mz_in = `-1`,
		int	eq_mpsi_in = `-1`
	)

inline

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template<class Device>

MagneticField< Device >::MagneticField ( )

inline

template<>

MagneticField< HostType >::MagneticField	(	NLReader::NamelistReader &	nlr,
		const MagneticEquilFiles &	equil_files,
		const View< Equil::XPoint *, HostType > &	xpts
	)

inline

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template<>

MagneticField< DeviceType >::MagneticField ( const MagneticField< HostType > & h )

inline

Member Function Documentation

template<class Device >

KOKKOS_INLINE_FUNCTION void MagneticField< Device >::bmag_interpol	(	const SimdVector &	v,
		Simd< double > &	bmag
	)		const

For vector of coordinates, get the B-field magnitude

Parameters

[in]	v	Vector of {r,z,phi} coordinates
[out]	bmag	Vector of magnetic field magnitudes

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template<class Device >

KOKKOS_INLINE_FUNCTION void MagneticField< Device >::bmag_interpol	(	const SimdVector2D &	x,
		const Simd< double > &	phi,
		Simd< double > &	bmag
	)		const

For vector of coordinates, get the B-field magnitude

Parameters

[in]	x	Vector of {r,z} coordinates
[out]	bmag	Vector of magnetic field magnitudes

template<class Device >

KOKKOS_INLINE_FUNCTION void MagneticField< Device >::bvec_interpol	(	double	r,
		double	z,
		double	phi,
		double &	br,
		double &	bz,
		double &	bphi
	)		const

Get the magnetic field components at single location

Parameters

[in]	r	r coordinate
[in]	z	z coordinate
[in]	phi	phi coordinate
[out]	br	r component of B
[out]	bz	z component of B
[out]	bphi	phi component of B

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template<class Device >

KOKKOS_INLINE_FUNCTION void MagneticField< Device >::derivs	(	const double(&)	x[2],
		double	phi,
		double(&)	dx[2]
	)		const

private

Get the derivatives of the magnetic field to see where the particle should move to as it traces the field

Parameters

[in]	x	(r,z) coordinates
[in]	phi	phi coordinate
[out]	dx	change in (r,z)

template<class Device >

KOKKOS_INLINE_FUNCTION void MagneticField< Device >::field	(	const SimdVector2D &	x,
		SimdVector &	bvec,
		SimdVector(&)	jacb[3],
		Simd< double > &	psivec,
		SimdVector2D &	gradpsi,
		SimdVector &	tdb,
		Simd< bool > &	rz_outside
	)		const

Get complete B-field info

Parameters

[in]	x	Vector of {r,z} coordinates
[in]	fld_z	Vector of z coordinates
[out]	bvec	Vector of magnetic field components (r,z,phi)
[out]	jacb	Vector of jacobians (3x3xSIMD_SIZE)
[out]	psivec	Vector of psi coordinates
[out]	gradpsi	Vector of psi gradients (r,z)
[out]	tdb	Vector of perturbed magnetic field (r,z,phi) NOT functional yet
[out]	rz_outside	Vector of whether the particles are outside the equilibrium

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template<class Device >

KOKKOS_INLINE_FUNCTION void MagneticField< Device >::follow_field	(	const SimdVector2D &	x_org,
		const Simd< double > &	phi_org,
		const Simd< double > &	phi_dest,
		SimdVector2D &	x_dest
	)		const

For a vector of locations in (r,z,phi), follow the equilibrium magnetic field back to a phi midplane to do particle-grid operations. The field is followed with a Runge Kutta scheme, which can be order 1, 2, or 4. Splitting this up to avoid branching could improve vectorization.

Parameters

[in]	x_org	Vector of (r,z) coordinates
[in]	phi_org	Vector of phi coordinates
[in]	phi_dest	Vector of phi coordinates of the target midplanes
[out]	x_dest	Vector of the (r,z) coordinates when the particles are projected along the field onto the specified plane

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template<class Device >

KOKKOS_INLINE_FUNCTION void MagneticField< Device >::get_psi	(	const SimdVector2D &	x,
		Simd< double > &	psi_out
	)		const

Get psi

Parameters

[in]	r_in	Vector of r coordinates
[in]	z_in	Vector of z coordinates
[out]	psi_out	Vector of psi coordinates

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template<class Device >

KOKKOS_INLINE_FUNCTION double MagneticField< Device >::I_deriv	(	double	psi_in,
		int	rgn3
	)		const

Interpolate the phi component of the magnetic field or its derivative at a single point

Parameters

[in]	psi_in	Poloidal magnetic flux at that point
[in]	rgn3	Whether the location is in region 3

Returns: The phi component of the magnetic field or its derivative

template<class Device >

KOKKOS_INLINE_FUNCTION double MagneticField< Device >::I_value	(	double	psi_in,
		int	rgn3
	)		const

Interpolate the phi component of the magnetic field or its derivative at a single point

Parameters

[in]	psi_in	Poloidal magnetic flux at that point
[in]	rgn3	Whether the location is in region 3

Returns: The phi component of the magnetic field or its derivative

Member Data Documentation

template<class Device>

double MagneticField< Device >::bd_max_r

Maximum r (of what exactly?)

template<class Device>

double MagneticField< Device >::bd_max_z

Maximum z (of what exactly?)

template<class Device>

double MagneticField< Device >::bd_min_r

Minimum r (of what exactly?)

template<class Device>

double MagneticField< Device >::bd_min_z

Minimum z (of what exactly?)

template<class Device>

double MagneticField< Device >::bp_sign

Whether poloidal field is reversed?

template<class Device>

double MagneticField< Device >::bt_sign

Whether toroidal field is reversed?

template<class Device>

Equilibrium MagneticField< Device >::equil

The object containing information about the magnetic equilibrium.

template<class Device>

int MagneticField< Device >::ff_order

Order of RK scheme used for field following. Can be 1, 2, or 4.

template<class Device>

int MagneticField< Device >::ff_step

Number of steps taken when projecting the particle location onto the midplane.

template<class Device>

CubInterp<Device> MagneticField< Device >::I_interp

The object for interpolating I (for deriving toroidal magnetic field)

template<class Device>

double MagneticField< Device >::inpsi

Boundary condition used in a few spots.

template<class Device>

double MagneticField< Device >::outpsi

Boundary condition used in a few spots.

template<class Device>

Bicub<Device> MagneticField< Device >::psi_bicub

The object for interpolating psi (magnetic flux surfaces)

The documentation for this class was generated from the following files:

/u/gitlab-xgc/builds/YGMz2TJ8/0/xgc/XGC-Devel/XGC_core/cpp/magnetic_field.hpp
/u/gitlab-xgc/builds/YGMz2TJ8/0/xgc/XGC-Devel/XGC_core/cpp/magnetic_field.tpp

Public Member Functions

Public Attributes

Private Member Functions

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation