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tree_amg_aggregate Module Reference
Implements an aggregation for TreeAMG hierarchy structure.
Data Types | |
| type | tamg_agg_monitor_t |
Functions/Subroutines | |
| subroutine | aggregate_finest_level (tamg, lx, ly, lz, ne) |
| Aggregaiton on finest level Aggregates all dofs in an element into a single aggregate. | |
| subroutine | agg_greedy_first_pass (naggs, max_aggs, n_elements, facet_neigh, offset_el, n_facet, is_aggregated, aggregate_size) |
| First pass of a greedy aggregation Loop through all dofs and aggregate on dof that has all unaggregated neighbors. | |
| subroutine | agg_greedy_second_pass (naggs, max_aggs, n_elements, facet_neigh, offset_el, n_facet, is_aggregated, aggregate_size) |
| Second pass of a greedy aggregation Loop through all unaggregated dofs and add them to a neighboring aggregate. If no neighboring aggregates, create a new aggregate. | |
| subroutine | agg_fill_nhbr_info (agg_nhbr, n_agg_nhbr, n_elements, facet_neigh, offset_el, n_facet, is_aggregated) |
| Create information on which aggregates are "adjacent" to eachother. | |
| subroutine | aggregate_greedy (tamg, lvl_id, max_aggs, facet_neigh, agg_nhbr) |
| Aggregates dofs based on adjacent dofs. | |
| subroutine | aggregate_end (tamg, lvl_id) |
| Aggregate all dofs to a single point to form a tree-like structure. | |
| subroutine | aggregation_monitor_finest (lvl, ndof, nagg) |
| subroutine | aggregation_monitor_phase1 (lvl, ndof, nagg, is_aggregated) |
| subroutine | aggregation_monitor_phase2 (lvl, ndof, nagg, is_aggregated) |
| subroutine | aggregation_monitor_final (lvl, ndof, nagg) |
| subroutine | aggregate_pairs (tamg, lvl_id, max_aggs, facet_neigh, agg_nhbr) |
| Aggregates pairs of dofs based on adjacent dofs. | |
Function/Subroutine Documentation
◆ agg_fill_nhbr_info()
| subroutine tree_amg_aggregate::agg_fill_nhbr_info | ( | integer, dimension(:,:), intent(inout), allocatable | agg_nhbr, |
| integer, intent(inout) | n_agg_nhbr, | ||
| integer, intent(in) | n_elements, | ||
| integer, dimension(:,:), intent(in) | facet_neigh, | ||
| integer, intent(in) | offset_el, | ||
| integer, intent(in) | n_facet, | ||
| integer, dimension(:), intent(inout) | is_aggregated | ||
| ) |
- Parameters
-
agg_nhbr Aggregate adjacency information (same structure as facet_neigh) n_agg_nhbr The max number of aggregate neighbors over all aggregates n_elements The number of elements (dofs) facet_neigh Dof adjacency information offset_el Offset for facet_neigh n_facet Max number of adjecnt dofs (ex. 6 if element is a cube) is_aggregated Array containing aggregate info. Maps from dof id to agg id
Definition at line 264 of file tree_amg_aggregate.f90.
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◆ agg_greedy_first_pass()
| subroutine tree_amg_aggregate::agg_greedy_first_pass | ( | integer, intent(inout) | naggs, |
| integer, intent(in) | max_aggs, | ||
| integer, intent(in) | n_elements, | ||
| integer, dimension(:,:), intent(in) | facet_neigh, | ||
| integer, intent(in) | offset_el, | ||
| integer, intent(in) | n_facet, | ||
| integer, dimension(:), intent(inout) | is_aggregated, | ||
| integer, dimension(:), intent(inout), allocatable | aggregate_size | ||
| ) |
- Parameters
-
naggs The number of aggregates that have been created max_aggs The maximum number of aggregates to allow to be created facet_neigh Dof adjacency information offset_el Offset for facet_neigh n_facet Max number of adjecnt dofs (ex. 6 if element is a cube) is_aggregated Array containing aggregate info. Maps from dof id to agg id aggregate_size Array containing the size of each aggregate
Definition at line 115 of file tree_amg_aggregate.f90.
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◆ agg_greedy_second_pass()
| subroutine tree_amg_aggregate::agg_greedy_second_pass | ( | integer, intent(inout) | naggs, |
| integer, intent(in) | max_aggs, | ||
| integer, intent(in) | n_elements, | ||
| integer, dimension(:,:), intent(in) | facet_neigh, | ||
| integer, intent(in) | offset_el, | ||
| integer, intent(in) | n_facet, | ||
| integer, dimension(:), intent(inout) | is_aggregated, | ||
| integer, dimension(:), intent(inout) | aggregate_size | ||
| ) |
- Parameters
-
naggs The number of aggregates that have ben created max_aggs The maximum number of aggregates to allow to be created facet_neigh Dof adjacency information offset_el Offset for facet_neigh n_facet Max number of adjecnt dofs (ex. 6 if element is a cube) is_aggregated Array containing aggregate info. Maps from dof id to agg id aggregate_size Array containing the size of each aggregate
Definition at line 195 of file tree_amg_aggregate.f90.
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◆ aggregate_end()
| subroutine tree_amg_aggregate::aggregate_end | ( | type(tamg_hierarchy_t), intent(inout) | tamg, |
| integer, intent(in) | lvl_id | ||
| ) |
- Parameters
-
tamg TreeAMG hierarchy data structure being aggregated lvl_id The level id for which aggregates are being created
Definition at line 425 of file tree_amg_aggregate.f90.
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◆ aggregate_finest_level()
| subroutine tree_amg_aggregate::aggregate_finest_level | ( | type(tamg_hierarchy_t), intent(inout) | tamg, |
| integer, intent(in) | lx, | ||
| integer, intent(in) | ly, | ||
| integer, intent(in) | lz, | ||
| integer, intent(in) | ne | ||
| ) |
- Parameters
-
tamg TreeAMG hierarchy data structure being aggregated lx Number of dofs in x direction per element ly Number of dofs in y direction per element lz Number of dofs in z direction per element ne Number of elements
Definition at line 66 of file tree_amg_aggregate.f90.
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◆ aggregate_greedy()
| subroutine tree_amg_aggregate::aggregate_greedy | ( | type(tamg_hierarchy_t), intent(inout) | tamg, |
| integer, intent(in) | lvl_id, | ||
| integer, intent(in) | max_aggs, | ||
| integer, dimension(:,:), intent(in) | facet_neigh, | ||
| integer, dimension(:,:), intent(inout), allocatable | agg_nhbr | ||
| ) |
- Parameters
-
tamg TreeAMG hierarchy data structure being aggregated lvl_id The level id for which aggregates are being created max_aggs Target number of aggregates to create on level facet_neigh Input array that contains adjacency of dofs on level agg_nhbr Output array that contains adjacency of created aggregates
Definition at line 333 of file tree_amg_aggregate.f90.
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◆ aggregate_pairs()
| subroutine tree_amg_aggregate::aggregate_pairs | ( | type(tamg_hierarchy_t), intent(inout) | tamg, |
| integer, intent(in) | lvl_id, | ||
| integer, intent(in) | max_aggs, | ||
| integer, dimension(:,:), intent(in) | facet_neigh, | ||
| integer, dimension(:,:), intent(inout), allocatable | agg_nhbr | ||
| ) |
- Parameters
-
tamg TreeAMG hierarchy data structure being aggregated lvl_id The level id for which aggregates are being created max_aggs Target number of aggregates to create on level facet_neigh Input array that contains adjacency of dofs on level agg_nhbr Output array that contains adjacency of created aggregates
NEKO elements are hexes, thus have 6 face neighbors
Definition at line 559 of file tree_amg_aggregate.f90.
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