treelmesh_type Derived Type

type, public :: treelmesh_type

declaration of the overall mesh on the local partition


Inherits

type~~treelmesh_type~~InheritsGraph type~treelmesh_type treelmesh_type type~tem_property_type tem_property_type type~treelmesh_type->type~tem_property_type Property type~tem_path_type tem_path_type type~treelmesh_type->type~tem_path_type pathList type~tem_global_type tem_global_type type~treelmesh_type->type~tem_global_type global type~tem_prophead_type tem_prophead_type type~tem_global_type->type~tem_prophead_type Property

Inherited by

type~~treelmesh_type~~InheritedByGraph type~treelmesh_type treelmesh_type type~solver_type~5 solver_type type~solver_type~5->type~treelmesh_type tree type~solver_type~6 solver_type type~solver_type~6->type~treelmesh_type tree type~solver_type~4 solver_type type~solver_type~4->type~treelmesh_type tree type~solver_type~9 solver_type type~solver_type~9->type~treelmesh_type tree type~solver_type~3 solver_type type~solver_type~3->type~treelmesh_type tree type~solver_type~7 solver_type type~solver_type~7->type~treelmesh_type tree type~solver_type solver_type type~solver_type->type~treelmesh_type tree type~solver_type~8 solver_type type~solver_type~8->type~treelmesh_type tree type~solver_type~2 solver_type type~solver_type~2->type~treelmesh_type tree

Contents


Components

TypeVisibilityAttributesNameInitial
type(tem_global_type), private :: global

This entry provides some global informations on the mesh, which is needed across all partitions.

integer, private :: nElems
integer(kind=long_k), private :: elemOffset
integer(kind=long_k), private, allocatable:: Part_First(:)

List of treeIDs of the first element on each partition, has a length of global%nParts

integer(kind=long_k), private, allocatable:: Part_Last(:)

List of treeIDs of the last element on each partition, has a length of global%nParts

integer(kind=long_k), private, allocatable:: treeID(:)

The treeIDs of each element (the array has a length of nElems) these IDs identify the element in the complete mesh, with a breadth-first numbering scheme. Allowing easy computation of parents and children. [treeid] \ref treeID

TreeID

The coordinate description of an element has three spatial entries and a fourth entry indicating the refinement level in the octree, resulting in a tuple of four integers: \f$(x, y, z, L)\f$.

This coordinate fully describes the spatial shape and position of an element and is important to determine spatial relations between elements. It can be obtained from a given treeID by the following procedure. 1. First, the \ref tem_topology_module::tem_levelof "refinement level" is found. 2. Then a \ref tem_topology_module::tem_firstidatlevel "level-offset" is calculated. 3. After the offset is known, the Morton index of the node in question is obtained by subtracting the offset \f$s\f$ from the treeID of the node. 4. Finally a simple bit interleaving rule allows the \ref tem_topology_module::tem_coordofid "transformation from the Morton index to the three dimensional coordinates".

The spatial indices are limited by the refinement level: \f$x, y, z \in \mathbf{Z}_{\ge 0}: x, y, z < 2^L\f$. To avoid undefined coordinates, movements through the mesh by additions to indices are done in a modulo(\f$2^L\f$) safeguard resulting in a periodic universe cube. This enables the movement in the mesh in horizontal direction (e.g. for stencil neighbor identification) by index alteration and translation into a treeID again.

integer(kind=long_k), private, allocatable:: ElemPropertyBits(:)

Bit field of element properties for each element (the array has a length of nElems), each bit in the 8 byte integer indicates the presence or absence of a given property, which are further described in the Property component.

type(tem_property_type), private, pointer:: Property(:)=> null()

declaration of additional elemental properties, the array has a length of global%nProperties, each property provides a list of local element indices of elements with this property.

type(tem_path_type), private, allocatable:: pathList(:)

Path for all elements in the treeID array

character(len=pathLen), private :: weights_file =''

Name of the file that contains weight information for each element to allow load balancing. If empty string, balancing will be deactivated.

character(len=pathLen), private :: write_weights

File to write weights to after simulation. Defaults to the same name as weights_file, if you do not want to have the input file overwritten, you can provide a different file to write to by setting write_weights accordingly in the configuration.

real(kind=rk), private :: levelWeight(globalMaxLevels)

Level weights as provided by the solver.