26 class InterpolationDDim,
37 Solver>> : std::true_type
42
43
44
76 Solver>> : std::true_type
81
82
83
97 class LowerExtrapolationRule,
98 class UpperExtrapolationRule>
104 LowerExtrapolationRule,
105 UpperExtrapolationRule>> : std::true_type
110
111
112
126 class EvaluationDDim1,
127 class EvaluationDDim2,
128 class LowerExtrapolationRule1,
129 class UpperExtrapolationRule1,
130 class LowerExtrapolationRule2,
131 class UpperExtrapolationRule2>
139 LowerExtrapolationRule1,
140 UpperExtrapolationRule1,
141 LowerExtrapolationRule2,
142 UpperExtrapolationRule2>> : std::true_type
147
148
149
153template <
class Builder,
class Evaluator>
162 class InterpolationDDim,
166 class LowerExtrapolationRule,
167 class UpperExtrapolationRule>
182 LowerExtrapolationRule,
183 UpperExtrapolationRule>> : std::true_type
199 class LowerExtrapolationRule1,
200 class UpperExtrapolationRule1,
201 class LowerExtrapolationRule2,
202 class UpperExtrapolationRule2>
223 LowerExtrapolationRule1,
224 UpperExtrapolationRule1,
225 LowerExtrapolationRule2,
226 UpperExtrapolationRule2>> : std::true_type
231
232
233
234
friend class DiscreteDomain
KOKKOS_DEFAULTED_FUNCTION constexpr DiscreteElement()=default
KOKKOS_FUNCTION constexpr bool operator!=(DiscreteVector< OTags... > const &rhs) const noexcept
A class which provides helper functions to initialise the Greville points from a B-Spline definition.
static ddc::DiscreteDomain< Sampling > get_domain()
Get the domain which gives us access to all of the Greville points.
static auto get_sampling()
Get the UniformPointSampling defining the Greville points.
Helper class for the initialisation of the mesh of interpolation points.
static auto get_sampling()
Get the sampling of interpolation points.
static ddc::DiscreteDomain< Sampling > get_domain()
Get the domain which can be used to access the interpolation points in the sampling.
A class for creating a 2D spline approximation of a function.
void operator()(ddc::ChunkSpan< double, batched_spline_domain_type< BatchedInterpolationDDom >, Layout, memory_space > spline, ddc::ChunkSpan< double const, BatchedInterpolationDDom, Layout, memory_space > vals, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type1< BatchedInterpolationDDom >, Layout, memory_space > > derivs_min1=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type1< BatchedInterpolationDDom >, Layout, memory_space > > derivs_max1=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type2< BatchedInterpolationDDom >, Layout, memory_space > > derivs_min2=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type2< BatchedInterpolationDDom >, Layout, memory_space > > derivs_max2=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_min1_min2=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_max1_min2=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_min1_max2=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_max1_max2=std::nullopt) const
Compute a 2D spline approximation of a function.
ddc::DiscreteDomain< bsplines_type1, bsplines_type2 > spline_domain() const noexcept
Get the 2D domain on which spline coefficients are defined.
BatchedInterpolationDDom batched_interpolation_domain(BatchedInterpolationDDom const &batched_interpolation_domain) const noexcept
Get the whole domain representing interpolation points.
SplineBuilder2D(SplineBuilder2D &&x)=default
Move-constructs.
SplineBuilder2D & operator=(SplineBuilder2D &&x)=default
Move-assigns.
SplineBuilder2D(interpolation_domain_type const &interpolation_domain, std::optional< std::size_t > cols_per_chunk=std::nullopt, std::optional< unsigned int > preconditioner_max_block_size=std::nullopt)
Build a SplineBuilder2D acting on interpolation_domain.
batched_spline_domain_type< BatchedInterpolationDDom > batched_spline_domain(BatchedInterpolationDDom const &batched_interpolation_domain) const noexcept
Get the whole domain on which spline coefficients are defined.
batch_domain_type< BatchedInterpolationDDom > batch_domain(BatchedInterpolationDDom const &batched_interpolation_domain) const noexcept
Get the batch domain.
~SplineBuilder2D()=default
Destructs.
SplineBuilder2D(SplineBuilder2D const &x)=delete
Copy-constructor is deleted.
interpolation_domain_type interpolation_domain() const noexcept
Get the domain for the 2D interpolation mesh used by this class.
SplineBuilder2D(BatchedInterpolationDDom const &batched_interpolation_domain, std::optional< std::size_t > cols_per_chunk=std::nullopt, std::optional< unsigned int > preconditioner_max_block_size=std::nullopt)
Build a SplineBuilder2D acting on the interpolation domain contained in batched_interpolation_domain.
SplineBuilder2D & operator=(SplineBuilder2D const &x)=delete
Copy-assignment is deleted.
A class for creating a 3D spline approximation of a function.
SplineBuilder3D(SplineBuilder3D const &x)=delete
Copy-constructor is deleted.
void operator()(ddc::ChunkSpan< double, batched_spline_domain_type< BatchedInterpolationDDom >, Layout, memory_space > spline, ddc::ChunkSpan< double const, BatchedInterpolationDDom, Layout, memory_space > vals, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type1< BatchedInterpolationDDom >, Layout, memory_space > > derivs_min1=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type1< BatchedInterpolationDDom >, Layout, memory_space > > derivs_max1=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type2< BatchedInterpolationDDom >, Layout, memory_space > > derivs_min2=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type2< BatchedInterpolationDDom >, Layout, memory_space > > derivs_max2=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type3< BatchedInterpolationDDom >, Layout, memory_space > > derivs_min3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type3< BatchedInterpolationDDom >, Layout, memory_space > > derivs_max3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type1_2< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_min1_min2=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type1_2< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_max1_min2=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type1_2< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_min1_max2=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type1_2< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_max1_max2=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type2_3< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_min2_min3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type2_3< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_max2_min3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type2_3< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_min2_max3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type2_3< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_max2_max3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type1_3< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_min1_min3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type1_3< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_max1_min3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type1_3< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_min1_max3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type1_3< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_max1_max3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_min1_min2_min3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_max1_min2_min3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_min1_max2_min3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_max1_max2_min3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_min1_min2_max3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_max1_min2_max3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_min1_max2_max3=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > mixed_derivs_max1_max2_max3=std::nullopt) const
Compute a 3D spline approximation of a function.
~SplineBuilder3D()=default
Destructs.
batched_spline_domain_type< BatchedInterpolationDDom > batched_spline_domain(BatchedInterpolationDDom const &batched_interpolation_domain) const noexcept
Get the whole domain on which spline coefficients are defined.
SplineBuilder3D(BatchedInterpolationDDom const &batched_interpolation_domain, std::optional< std::size_t > cols_per_chunk=std::nullopt, std::optional< unsigned int > preconditioner_max_block_size=std::nullopt)
Build a SplineBuilder3D acting on the interpolation domain contained in batched_interpolation_domain.
ddc::DiscreteDomain< bsplines_type1, bsplines_type2, bsplines_type3 > spline_domain() const noexcept
Get the 3D domain on which spline coefficients are defined.
batch_domain_type< BatchedInterpolationDDom > batch_domain(BatchedInterpolationDDom const &batched_interpolation_domain) const noexcept
Get the batch domain.
interpolation_domain_type interpolation_domain() const noexcept
Get the domain for the 3D interpolation mesh used by this class.
SplineBuilder3D & operator=(SplineBuilder3D const &x)=delete
Copy-assignment is deleted.
SplineBuilder3D(interpolation_domain_type const &interpolation_domain, std::optional< std::size_t > cols_per_chunk=std::nullopt, std::optional< unsigned int > preconditioner_max_block_size=std::nullopt)
Build a SplineBuilder3D acting on interpolation_domain.
SplineBuilder3D(SplineBuilder3D &&x)=default
Move-constructs.
BatchedInterpolationDDom batched_interpolation_domain(BatchedInterpolationDDom const &batched_interpolation_domain) const noexcept
Get the whole domain representing interpolation points.
SplineBuilder3D & operator=(SplineBuilder3D &&x)=default
Move-assigns.
A class for creating a spline approximation of a function.
batched_derivs_domain_type< BatchedInterpolationDDom > batched_derivs_xmax_domain(BatchedInterpolationDDom const &batched_interpolation_domain) const noexcept
Get the whole domain on which derivatives on upper boundary are defined.
static constexpr SplineSolver s_spline_solver
The SplineSolver giving the backend used to perform the spline approximation.
batch_domain_type< BatchedInterpolationDDom > batch_domain(BatchedInterpolationDDom const &batched_interpolation_domain) const noexcept
Get the batch domain.
std::tuple< ddc::Chunk< double, ddc::DiscreteDomain< ddc::Deriv< typename InterpolationDDim::continuous_dimension_type > >, ddc::KokkosAllocator< double, OutMemorySpace > >, ddc::Chunk< double, ddc::DiscreteDomain< InterpolationDDim >, ddc::KokkosAllocator< double, OutMemorySpace > >, ddc::Chunk< double, ddc::DiscreteDomain< ddc::Deriv< typename InterpolationDDim::continuous_dimension_type > >, ddc::KokkosAllocator< double, OutMemorySpace > > > quadrature_coefficients() const
Compute the quadrature coefficients associated to the b-splines used by this SplineBuilder.
SplineBuilder & operator=(SplineBuilder const &x)=delete
Copy-assignment is deleted.
SplineBuilder(SplineBuilder &&x)=default
Move-constructs.
SplineBuilder(interpolation_domain_type const &interpolation_domain, std::optional< std::size_t > cols_per_chunk=std::nullopt, std::optional< unsigned int > preconditioner_max_block_size=std::nullopt)
Build a SplineBuilder acting on interpolation_domain.
static constexpr ddc::BoundCond s_bc_xmin
The boundary condition implemented at the lower bound.
static constexpr int s_nbc_xmin
The number of equations defining the boundary condition at the lower bound.
SplineBuilder & operator=(SplineBuilder &&x)=default
Move-assigns.
BatchedInterpolationDDom batched_interpolation_domain(BatchedInterpolationDDom const &batched_interpolation_domain) const noexcept
Get the whole domain representing interpolation points.
SplineBuilder(SplineBuilder const &x)=delete
Copy-constructor is deleted.
SplineBuilder(BatchedInterpolationDDom const &batched_interpolation_domain, std::optional< std::size_t > cols_per_chunk=std::nullopt, std::optional< unsigned int > preconditioner_max_block_size=std::nullopt)
Build a SplineBuilder acting on the interpolation domain contained by batched_interpolation_domain.
static constexpr bool s_odd
Indicates if the degree of the splines is odd or even.
interpolation_domain_type interpolation_domain() const noexcept
Get the domain for the 1D interpolation mesh used by this class.
batched_derivs_domain_type< BatchedInterpolationDDom > batched_derivs_xmin_domain(BatchedInterpolationDDom const &batched_interpolation_domain) const noexcept
Get the whole domain on which derivatives on lower boundary are defined.
static constexpr ddc::BoundCond s_bc_xmax
The boundary condition implemented at the upper bound.
static constexpr int s_nbc_xmax
The number of equations defining the boundary condition at the upper bound.
void operator()(ddc::ChunkSpan< double, batched_spline_domain_type< BatchedInterpolationDDom >, Layout, memory_space > spline, ddc::ChunkSpan< double const, BatchedInterpolationDDom, Layout, memory_space > vals, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > derivs_xmin=std::nullopt, std::optional< ddc::ChunkSpan< double const, batched_derivs_domain_type< BatchedInterpolationDDom >, Layout, memory_space > > derivs_xmax=std::nullopt) const
Compute a spline approximation of a function.
batched_spline_domain_type< BatchedInterpolationDDom > batched_spline_domain(BatchedInterpolationDDom const &batched_interpolation_domain) const noexcept
Get the whole domain on which spline coefficients are defined.
ddc::DiscreteDomain< bsplines_type > spline_domain() const noexcept
Get the 1D domain on which spline coefficients are defined.
~SplineBuilder()=default
Destructs.
A class to evaluate, differentiate or integrate a 2D spline function.
void operator()(ddc::ChunkSpan< double, BatchedInterpolationDDom, Layout1, memory_space > const spline_eval, ddc::ChunkSpan< double const, batched_spline_domain_type< BatchedInterpolationDDom >, Layout2, memory_space > const spline_coef) const
Evaluate 2D spline function (described by its spline coefficients) on a mesh.
SplineEvaluator2D(SplineEvaluator2D &&x)=default
Move-constructs.
lower_extrapolation_rule_1_type lower_extrapolation_rule_dim_1() const
Get the lower extrapolation rule along the first dimension.
SplineEvaluator2D & operator=(SplineEvaluator2D const &x)=default
Copy-assigns.
void deriv(DElem const &deriv_order, ddc::ChunkSpan< double, BatchedInterpolationDDom, Layout1, memory_space > const spline_eval, ddc::ChunkSpan< ddc::Coordinate< CoordsDims... > const, BatchedInterpolationDDom, Layout2, memory_space > const coords_eval, ddc::ChunkSpan< double const, batched_spline_domain_type< BatchedInterpolationDDom >, Layout3, memory_space > const spline_coef) const
Differentiate 2D spline function (described by its spline coefficients) on a mesh along the dimension...
SplineEvaluator2D(SplineEvaluator2D const &x)=default
Copy-constructs.
~SplineEvaluator2D()=default
Destructs.
KOKKOS_FUNCTION double deriv(DElem const &deriv_order, ddc::Coordinate< CoordsDims... > const &coord_eval, ddc::ChunkSpan< double const, spline_domain_type, Layout, memory_space > const spline_coef) const
Differentiate 2D spline function (described by its spline coefficients) at a given coordinate along t...
void deriv(DElem const &deriv_order, ddc::ChunkSpan< double, BatchedInterpolationDDom, Layout1, memory_space > const spline_eval, ddc::ChunkSpan< double const, batched_spline_domain_type< BatchedInterpolationDDom >, Layout2, memory_space > const spline_coef) const
Differentiate 2D spline function (described by its spline coefficients) on a mesh along the dimension...
void integrate(ddc::ChunkSpan< double, BatchedDDom, Layout1, memory_space > const integrals, ddc::ChunkSpan< double const, BatchedSplineDDom, Layout2, memory_space > const spline_coef) const
Perform batched 2D integrations of a spline function (described by its spline coefficients) along the...
upper_extrapolation_rule_2_type upper_extrapolation_rule_dim_2() const
Get the upper extrapolation rule along the second dimension.
upper_extrapolation_rule_1_type upper_extrapolation_rule_dim_1() const
Get the upper extrapolation rule along the first dimension.
lower_extrapolation_rule_2_type lower_extrapolation_rule_dim_2() const
Get the lower extrapolation rule along the second dimension.
SplineEvaluator2D & operator=(SplineEvaluator2D &&x)=default
Move-assigns.
KOKKOS_FUNCTION double operator()(ddc::Coordinate< CoordsDims... > const &coord_eval, ddc::ChunkSpan< double const, spline_domain_type, Layout, memory_space > const spline_coef) const
Evaluate 2D spline function (described by its spline coefficients) at a given coordinate.
void operator()(ddc::ChunkSpan< double, BatchedInterpolationDDom, Layout1, memory_space > const spline_eval, ddc::ChunkSpan< ddc::Coordinate< CoordsDims... > const, BatchedInterpolationDDom, Layout2, memory_space > const coords_eval, ddc::ChunkSpan< double const, batched_spline_domain_type< BatchedInterpolationDDom >, Layout3, memory_space > const spline_coef) const
Evaluate 2D spline function (described by its spline coefficients) on a mesh.
SplineEvaluator2D(LowerExtrapolationRule1 const &lower_extrap_rule1, UpperExtrapolationRule1 const &upper_extrap_rule1, LowerExtrapolationRule2 const &lower_extrap_rule2, UpperExtrapolationRule2 const &upper_extrap_rule2)
Build a SplineEvaluator2D acting on batched_spline_domain.
A class to evaluate, differentiate or integrate a 3D spline function.
upper_extrapolation_rule_1_type upper_extrapolation_rule_dim_1() const
Get the upper extrapolation rule along the first dimension.
void deriv(DElem const &deriv_order, ddc::ChunkSpan< double, BatchedInterpolationDDom, Layout1, memory_space > const spline_eval, ddc::ChunkSpan< double const, batched_spline_domain_type< BatchedInterpolationDDom >, Layout2, memory_space > const spline_coef) const
Differentiate 3D spline function (described by its spline coefficients) on a mesh along the dimension...
void operator()(ddc::ChunkSpan< double, BatchedInterpolationDDom, Layout1, memory_space > const spline_eval, ddc::ChunkSpan< ddc::Coordinate< CoordsDims... > const, BatchedInterpolationDDom, Layout2, memory_space > const coords_eval, ddc::ChunkSpan< double const, batched_spline_domain_type< BatchedInterpolationDDom >, Layout3, memory_space > const spline_coef) const
Evaluate 3D spline function (described by its spline coefficients) on a mesh.
SplineEvaluator3D & operator=(SplineEvaluator3D &&x)=default
Move-assigns.
upper_extrapolation_rule_3_type upper_extrapolation_rule_dim_3() const
Get the upper extrapolation rule along the third dimension.
SplineEvaluator3D(LowerExtrapolationRule1 const &lower_extrap_rule1, UpperExtrapolationRule1 const &upper_extrap_rule1, LowerExtrapolationRule2 const &lower_extrap_rule2, UpperExtrapolationRule2 const &upper_extrap_rule2, LowerExtrapolationRule3 const &lower_extrap_rule3, UpperExtrapolationRule3 const &upper_extrap_rule3)
Build a SplineEvaluator3D acting on batched_spline_domain.
~SplineEvaluator3D()=default
Destructs.
lower_extrapolation_rule_1_type lower_extrapolation_rule_dim_1() const
Get the lower extrapolation rule along the first dimension.
upper_extrapolation_rule_2_type upper_extrapolation_rule_dim_2() const
Get the upper extrapolation rule along the second dimension.
void deriv(DElem const &deriv_order, ddc::ChunkSpan< double, BatchedInterpolationDDom, Layout1, memory_space > const spline_eval, ddc::ChunkSpan< ddc::Coordinate< CoordsDims... > const, BatchedInterpolationDDom, Layout2, memory_space > const coords_eval, ddc::ChunkSpan< double const, batched_spline_domain_type< BatchedInterpolationDDom >, Layout3, memory_space > const spline_coef) const
Differentiate 3D spline function (described by its spline coefficients) on a mesh along the dimension...
KOKKOS_FUNCTION double deriv(DElem const &deriv_order, ddc::Coordinate< CoordsDims... > const &coord_eval, ddc::ChunkSpan< double const, spline_domain_type, Layout, memory_space > const spline_coef) const
Differentiate 3D spline function (described by its spline coefficients) at a given coordinate along t...
SplineEvaluator3D(SplineEvaluator3D const &x)=default
Copy-constructs.
KOKKOS_FUNCTION double operator()(ddc::Coordinate< CoordsDims... > const &coord_eval, ddc::ChunkSpan< double const, spline_domain_type, Layout, memory_space > const spline_coef) const
Evaluate 3D spline function (described by its spline coefficients) at a given coordinate.
lower_extrapolation_rule_3_type lower_extrapolation_rule_dim_3() const
Get the lower extrapolation rule along the third dimension.
SplineEvaluator3D(SplineEvaluator3D &&x)=default
Move-constructs.
void integrate(ddc::ChunkSpan< double, BatchedDDom, Layout1, memory_space > const integrals, ddc::ChunkSpan< double const, BatchedSplineDDom, Layout2, memory_space > const spline_coef) const
Perform batched 3D integrations of a spline function (described by its spline coefficients) along the...
lower_extrapolation_rule_2_type lower_extrapolation_rule_dim_2() const
Get the lower extrapolation rule along the second dimension.
SplineEvaluator3D & operator=(SplineEvaluator3D const &x)=default
Copy-assigns.
void operator()(ddc::ChunkSpan< double, BatchedInterpolationDDom, Layout1, memory_space > const spline_eval, ddc::ChunkSpan< double const, batched_spline_domain_type< BatchedInterpolationDDom >, Layout2, memory_space > const spline_coef) const
Evaluate 3D spline function (described by its spline coefficients) on a mesh.
A class to evaluate, differentiate or integrate a spline function.
void operator()(ddc::ChunkSpan< double, BatchedInterpolationDDom, Layout1, memory_space > const spline_eval, ddc::ChunkSpan< ddc::Coordinate< CoordsDims... > const, BatchedInterpolationDDom, Layout2, memory_space > const coords_eval, ddc::ChunkSpan< double const, batched_spline_domain_type< BatchedInterpolationDDom >, Layout3, memory_space > const spline_coef) const
Evaluate spline function (described by its spline coefficients) on a mesh.
upper_extrapolation_rule_type upper_extrapolation_rule() const
Get the upper extrapolation rule.
SplineEvaluator & operator=(SplineEvaluator const &x)=default
Copy-assigns.
SplineEvaluator & operator=(SplineEvaluator &&x)=default
Move-assigns.
SplineEvaluator(LowerExtrapolationRule const &lower_extrap_rule, UpperExtrapolationRule const &upper_extrap_rule)
Build a SplineEvaluator acting on batched_spline_domain.
lower_extrapolation_rule_type lower_extrapolation_rule() const
Get the lower extrapolation rule.
void deriv(DElem const &deriv_order, ddc::ChunkSpan< double, BatchedInterpolationDDom, Layout1, memory_space > const spline_eval, ddc::ChunkSpan< double const, batched_spline_domain_type< BatchedInterpolationDDom >, Layout2, memory_space > const spline_coef) const
Differentiate 1D spline function (described by its spline coefficients) on a mesh.
KOKKOS_FUNCTION double operator()(ddc::Coordinate< CoordsDims... > const &coord_eval, ddc::ChunkSpan< double const, spline_domain_type, Layout, memory_space > const spline_coef) const
Evaluate 1D spline function (described by its spline coefficients) at a given coordinate.
KOKKOS_FUNCTION double deriv(DElem const &deriv_order, ddc::Coordinate< CoordsDims... > const &coord_eval, ddc::ChunkSpan< double const, spline_domain_type, Layout, memory_space > const spline_coef) const
Differentiate 1D spline function (described by its spline coefficients) at a given coordinate.
SplineEvaluator(SplineEvaluator const &x)=default
Copy-constructs.
SplineEvaluator(SplineEvaluator &&x)=default
Move-constructs.
void deriv(DElem const &deriv_order, ddc::ChunkSpan< double, BatchedInterpolationDDom, Layout1, memory_space > const spline_eval, ddc::ChunkSpan< ddc::Coordinate< CoordsDims... > const, BatchedInterpolationDDom, Layout2, memory_space > const coords_eval, ddc::ChunkSpan< double const, batched_spline_domain_type< BatchedInterpolationDDom >, Layout3, memory_space > const spline_coef) const
Differentiate 1D spline function (described by its spline coefficients) on a mesh.
void integrate(ddc::ChunkSpan< double, BatchedDDom, Layout1, memory_space > const integrals, ddc::ChunkSpan< double const, BatchedSplineDDom, Layout2, memory_space > const spline_coef) const
Perform batched 1D integrations of a spline function (described by its spline coefficients) along the...
void operator()(ddc::ChunkSpan< double, BatchedInterpolationDDom, Layout1, memory_space > const spline_eval, ddc::ChunkSpan< double const, batched_spline_domain_type< BatchedInterpolationDDom >, Layout2, memory_space > const spline_coef) const
Evaluate a spline function (described by its spline coefficients) on a mesh.
~SplineEvaluator()=default
Destructs.
#define DDC_BUILD_DEPRECATED_CODE
The top-level namespace of DDC.
constexpr int n_boundary_equations(ddc::BoundCond const bc, std::size_t const degree)
Return the number of equations needed to describe a given boundary condition.
constexpr bool is_spline_builder_v
A helper to check if T is a SplineBuilder.
constexpr bool is_uniform_bsplines_v
Indicates if a tag corresponds to uniform B-splines or not.
BoundCond
An enum representing a spline boundary condition.
@ GREVILLE
Use Greville points instead of conditions on derivative for B-Spline interpolation.
@ HERMITE
Hermite boundary condition.
@ PERIODIC
Periodic boundary condition u(1)=u(n)
constexpr bool is_spline_evaluator2d_v
A helper to check if T is a SplineEvaluator2D.
ddc::ChunkSpan< double, ddc::DiscreteDomain< DDim >, Layout, MemorySpace > integrals(ExecSpace const &execution_space, ddc::ChunkSpan< double, ddc::DiscreteDomain< DDim >, Layout, MemorySpace > int_vals)
Compute the integrals of the B-splines.
SplineSolver
An enum determining the backend solver of a SplineBuilder or SplineBuilder2d.
@ LAPACK
Enum member to identify the LAPACK-based solver (direct method)
@ GINKGO
Enum member to identify the Ginkgo-based solver (iterative method)
constexpr bool is_spline_builder2d_v
A helper to check if T is a SplineBuilder2D.
constexpr bool is_spline_evaluator_v
A helper to check if T is a SplineEvaluator.
constexpr bool is_non_uniform_bsplines_v
Indicates if a tag corresponds to non-uniform B-splines or not.
constexpr bool is_evaluator_admissible_v
A helper to check if SplineEvaluator is admissible for SplineBuilder.
A templated struct representing a discrete dimension storing the derivatives of a function along a co...
If the type DDim is a B-spline, defines type to the discrete dimension of the associated knots.