2D specfem::assembly::mesh_impl::points

template<>
struct points<specfem::element::dimension_tag::dim2>

Template specialization for 2D quadrature points in spectral element mesh.

This class stores and manages quadrature points for a 2D spectral element mesh, including their coordinates, global indexing, and boundary information. It uses Kokkos views for efficient memory management and device/host data transfers.

Template Parameters:

specfem::element::dimension_tag::dim2 – Template specialization for 2D case

Subclassed by specfem::assembly::mesh< specfem::element::dimension_tag::dim2 >

Public Types

using IndexMappingViewType = Kokkos::View<int***, Kokkos::LayoutLeft, Kokkos::DefaultExecutionSpace>

Kokkos view for storing global element number for every quadrature point.

using CoordViewType = Kokkos::View<type_real****, Kokkos::LayoutRight, Kokkos::DefaultExecutionSpace>

Kokkos view for storing coordinates of every distinct quadrature point.

Public Functions

points() = default

Default constructor.

Creates an uninitialized points object with default values.

inline points(const int &nspec, const int &ngllz, const int &ngllx, const int &nglob)

Constructor with mesh parameters.

Initializes the points object with the given mesh dimensions and allocates Kokkos views for storing quadrature point data.

Parameters:

  • nspec – Number of spectral elements in the mesh

  • ngllz – Number of quadrature points in the z (vertical) dimension

  • ngllx – Number of quadrature points in the x (horizontal) dimension

  • nglob – Total number of global quadrature points

inline points(const int &nspec, const int &ngllz, const int &ngllx, const int &nglob, IndexMappingViewType::host_mirror_type h_index_mapping_in, CoordViewType::host_mirror_type h_coord_in, type_real xmin_in, type_real xmax_in, type_real zmin_in, type_real zmax_in)

Constructor with pre-computed coordinate data.

Initializes the points object with pre-computed coordinate arrays and boundary information. This constructor copies the provided host data to device memory using Kokkos deep_copy operations.

Parameters:

  • nspec – Number of spectral elements in the mesh

  • ngllz – Number of quadrature points in the z dimension

  • ngllx – Number of quadrature points in the x dimension

  • nglob – Total number of global quadrature points

  • h_index_mapping_in – Pre-computed host mirror of index mapping

  • h_coord_in – Pre-computed host mirror of coordinates

  • xmin_in – Minimum x coordinate value

  • xmax_in – Maximum x coordinate value

  • zmin_in – Minimum z coordinate value

  • zmax_in – Maximum z coordinate value

Public Members

int nspec

Number of spectral elements.

int ngllz

Number of quadrature points in z dimension.

int ngllx

Number of quadrature points in x dimension.

int nglob

Number of global quadrature points.

IndexMappingViewType index_mapping

Global index number for every quadrature point

CoordViewType coord

(x, z) for every distinct quadrature point

IndexMappingViewType::host_mirror_type h_index_mapping

Global element number for every quadrature point

CoordViewType::host_mirror_type h_coord

(x, z) for every distinct quadrature point

type_real zmax

Min and max values of x and z coordinates

Public Static Attributes

static constexpr auto dimension_tag = specfem::element::dimension_tag::dim2

Dimension.

static constexpr auto data_class = specfem::data_access::DataClassType::global_coordinates

Data class.

static constexpr int ndim = specfem::element::dimension<specfem::element::dimension_tag::dim2>::dim

Number of dimensions.