dash::SeqTilePattern< NumDimensions, Arrangement, IndexType > Class Template Reference

Defines how a list of global indices is mapped to single units within a Team. More...

#include <SeqTilePattern.h>

Classes
struct	local_coords_t
struct	local_index_t

Public Types
typedef pattern_partitioning_properties< pattern_partitioning_tag::minimal, pattern_partitioning_tag::rectangular, pattern_partitioning_tag::balanced >	partitioning_properties
	Satisfiable properties in pattern property category Partitioning: More...
typedef pattern_mapping_properties< pattern_mapping_tag::balanced, pattern_mapping_tag::unbalanced, pattern_mapping_tag::diagonal >	mapping_properties
	Satisfiable properties in pattern property category Mapping: More...
typedef pattern_layout_properties< pattern_layout_tag::blocked, pattern_layout_tag::linear >	layout_properties
	Satisfiable properties in pattern property category Layout: More...
typedef IndexType	index_type
typedef SizeType	size_type
typedef ViewSpec_t	viewspec_type

Public Member Functions
template<typename ... Args>
	SeqTilePattern (SizeType arg, Args &&... args)
	Constructor, initializes a pattern from an argument list consisting of the pattern size (extent, number of elements) in every dimension followed by optional distribution types. More...
	SeqTilePattern (const SizeSpec_t &sizespec, DistributionSpec_t dist, const TeamSpec_t &teamspec, dash::Team &team=dash::Team::All())
	Constructor, initializes a pattern from explicit instances of SizeSpec, DistributionSpec, TeamSpec and a Team. More...
	SeqTilePattern (const SizeSpec_t &sizespec, const DistributionSpec_t &dist=DistributionSpec_t(), Team &team=dash::Team::All())
	Constructor, initializes a pattern from explicit instances of SizeSpec, DistributionSpec and a Team. More...
	SeqTilePattern (const self_t &other)
	Copy constructor. More...
	SeqTilePattern (self_t &other)
	Copy constructor using non-const lvalue reference parameter. More...
bool	operator== (const self_t &other) const
	Equality comparison operator. More...
bool	operator!= (const self_t &other) const
	Inquality comparison operator. More...
SeqTilePattern &	operator= (const SeqTilePattern &other)
	Assignment operator. More...
IndexType	lbegin () const
	Resolves the global index of the first local element in the pattern. More...
IndexType	lend () const
	Resolves the global index past the last local element in the pattern. More...
team_unit_t	unit_at (const std::array< IndexType, NumDimensions > &coords, const ViewSpec_t &viewspec) const
	unit_at More...
team_unit_t	unit_at (const std::array< IndexType, NumDimensions > &coords) const
	Convert given coordinate in pattern to its assigned unit id. More...
team_unit_t	unit_at (IndexType global_pos, const ViewSpec_t &viewspec) const
	Convert given global linear index to its assigned unit id. More...
team_unit_t	unit_at (IndexType global_pos) const
	Convert given global linear index to its assigned unit id. More...
SizeType	extent (dim_t dim) const
	extent More...
SizeType	local_extent (dim_t dim) const
	The actual number of elements in this pattern that are local to the calling unit in the given dimension. More...
std::array< SizeType, NumDimensions >	local_extents (team_unit_t unit=UNDEFINED_TEAM_UNIT_ID) const
	The actual number of elements in this pattern that are local to the given unit, by dimension. More...
IndexType	local_at (const std::array< IndexType, NumDimensions > &local_coords, const ViewSpec_t &viewspec) const
	local More...
IndexType	local_at (const std::array< IndexType, NumDimensions > &local_coords) const
	Convert given local coordinates to linear local offset (index). More...
local_coords_t	local (const std::array< IndexType, NumDimensions > &global_coords) const
	Converts global coordinates to their associated unit and its respective local coordinates. More...
local_index_t	local (IndexType g_index) const
	Converts global index to its associated unit and respective local index. More...
std::array< IndexType, NumDimensions >	local_coords (const std::array< IndexType, NumDimensions > &global_coords) const
	Converts global coordinates to their associated unit's respective local coordinates. More...
local_index_t	local_index (const std::array< IndexType, NumDimensions > &global_coords) const
	Resolves the unit and the local index from global coordinates. More...
std::array< IndexType, NumDimensions >	global (team_unit_t unit, const std::array< IndexType, NumDimensions > &local_coords) const
	global More...
std::array< IndexType, NumDimensions >	global (const std::array< IndexType, NumDimensions > &local_coords) const
	Converts local coordinates of a active unit to global coordinates. More...
IndexType	global (IndexType local_index) const
	Resolve an element's linear global index from the calling unit's local index of that element. More...
IndexType	global_index (team_unit_t unit, const std::array< IndexType, NumDimensions > &local_coords) const
	Resolve an element's linear global index from a given unit's local coordinates of that element. More...
IndexType	global_at (const std::array< IndexType, NumDimensions > &global_coords, const ViewSpec_t &viewspec) const
	Global coordinates and viewspec to global position in the pattern's block-wise iteration order. More...
IndexType	global_at (const std::array< IndexType, NumDimensions > &global_coords) const
	Global coordinates to global position in the pattern's block-wise iteration order. More...
IndexType	at (const std::array< IndexType, NumDimensions > &global_coords, const ViewSpec_t &viewspec) const
	at More...
IndexType	at (std::array< IndexType, NumDimensions > global_coords) const
	Global coordinates to local index. More...
template<typename ... Values>
IndexType	at (Values ... values) const
	Global coordinates to local index. More...
bool	has_local_elements (dim_t dim, IndexType dim_offset, team_unit_t unit, const ViewSpec_t &viewspec) const
	is_local More...
bool	is_local (IndexType index, team_unit_t unit) const
	Whether the given global index is local to the specified unit. More...
bool	is_local (IndexType index) const
	Whether the given global index is local to the unit that created this pattern instance. More...
index_type	block_at (const std::array< index_type, NumDimensions > &g_coords) const
	block More...
ViewSpec_t	block (index_type global_block_index) const
	View spec (offset and extents) of block at global linear block index in global cartesian element space. More...
ViewSpec_t	local_block (index_type local_block_index) const
	View spec (offset and extents) of block at local linear block index in global cartesian element space. More...
ViewSpec_t	local_block (team_unit_t unit, index_type local_block_index) const
	View spec (offset and extents) of block at local linear block index in global cartesian element space. More...
ViewSpec_t	local_block_local (index_type local_block_index) const
	View spec (offset and extents) of block at local linear block index in local cartesian element space. More...
const BlockSpec_t &	blockspec () const
	Cartesian arrangement of pattern blocks. More...
const BlockSpec_t &	local_blockspec () const
	Cartesian arrangement of pattern blocks. More...
BlockSpec_t	local_blockspec (team_unit_t unit) const
	Cartesian arrangement of pattern blocks. More...
SizeType	blocksize (dim_t dimension) const
	Maximum number of elements in a single block in the given dimension. More...
SizeType	max_blocksize () const
	Maximum number of elements in a single block in all dimensions. More...
SizeType	local_capacity () const
	Maximum number of elements assigned to a single unit in total, equivalent to the local capacity of every unit in this pattern. More...
SizeType	local_size (team_unit_t unit=UNDEFINED_TEAM_UNIT_ID) const
	The actual number of elements in this pattern that are local to the calling unit in total. More...
IndexType	num_units () const
	The number of units to which this pattern's elements are mapped. More...
IndexType	capacity () const
	The maximum number of elements arranged in this pattern. More...
IndexType	size () const
	The number of elements arranged in this pattern. More...
dash::Team &	team () const
	The Team containing the units to which this pattern's elements are mapped. More...
const DistributionSpec_t &	distspec () const
	Distribution specification of this pattern. More...
SizeSpec_t	sizespec () const
	Size specification of the index space mapped by this pattern. More...
const std::array< SizeType, NumDimensions > &	extents () const
	Size specification of the index space mapped by this pattern. More...
const TeamSpec_t &	teamspec () const
	Cartesian arrangement of the Team containing the units to which this pattern's elements are mapped. More...
std::array< IndexType, NumDimensions >	coords (IndexType index) const
	Convert given global linear offset (index) to global cartesian coordinates. More...
std::array< IndexType, NumDimensions >	coords (IndexType index, const ViewSpec_t &viewspec) const
	Convert given global linear offset (index) to global cartesian coordinates using viewspec. More...

Static Public Member Functions
static constexpr MemArrange	memory_order ()
	Memory order followed by the pattern. More...
static constexpr dim_t	ndim ()
	Number of dimensions of the cartesian space partitioned by the pattern. More...

Static Public Attributes
static constexpr char const *	PatternName = "SeqTilePattern"

Detailed Description

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>
class dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >

Defines how a list of global indices is mapped to single units within a Team.

Expects extent[d] to be a multiple of (blocksize[d] * nunits[d]) to ensure the balanced property.

Template Parameters

NumDimensions	The number of dimensions of the pattern
Arrangement	The memory order of the pattern (ROW_MAJOR or COL_MAJOR), defaults to ROW_MAJOR. Memory order defines how elements in the pattern will be iterated predominantly

See also

MemArrange

Implemented concept:

Pattern Concept

Examples:

ex.06.pattern-block-visualizer/main.cpp.

Definition at line 48 of file SeqTilePattern.h.

Member Typedef Documentation

layout_properties

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

typedef pattern_layout_properties< pattern_layout_tag::blocked, pattern_layout_tag::linear > dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::layout_properties

Satisfiable properties in pattern property category Layout:

Definition at line 81 of file SeqTilePattern.h.

mapping_properties

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

typedef pattern_mapping_properties< pattern_mapping_tag::balanced, pattern_mapping_tag::unbalanced, pattern_mapping_tag::diagonal > dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::mapping_properties

Satisfiable properties in pattern property category Mapping:

Definition at line 72 of file SeqTilePattern.h.

partitioning_properties

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

typedef pattern_partitioning_properties< pattern_partitioning_tag::minimal, pattern_partitioning_tag::rectangular, pattern_partitioning_tag::balanced > dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::partitioning_properties

Satisfiable properties in pattern property category Partitioning:

Definition at line 63 of file SeqTilePattern.h.

Constructor & Destructor Documentation

SeqTilePattern() [1/5]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

template<typename ... Args>

dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::SeqTilePattern ( SizeType  arg, Args &&...  args  )

inline

Constructor, initializes a pattern from an argument list consisting of the pattern size (extent, number of elements) in every dimension followed by optional distribution types.

Examples:

// A 5x3 rectangle with blocked distribution in the first dimension
SeqTilePattern p1(10,20);
auto num_units = dash::Team::All.size();
// Same as
SeqTilePattern p1(SizeSpec<2>(10,20,
               DistributionSpec<2>(TILE(10/num_units),
                                   TILE(20/num_units)));
// Same as
SeqTilePattern p1(SizeSpec<2>(10,20),
               DistributionSpec<2>(TILE(10/num_units),
                                   TILE(20/num_units)));
               TeamSpec<2>(dash::Team::All(), 1));
// Same as
SeqTilePattern p1(SizeSpec<2>(10,20),
               DistributionSpec<2>(TILE(10/num_units),
                                   TILE(20/num_units)));
               // How teams are arranged in all dimensions, default
               // is an extent of all units in first, and 1 in all
               // higher dimensions:
               TeamSpec<2>(dash::Team::All(), 1),
               // The team containing the units to which the
               // pattern maps the global indices. Defaults to all
               // all units:
               dash::Team::All());

Parameters

arg	Argument list consisting of the pattern size (extent, number of elements) in every dimension followed by optional distribution types.
args	Argument list consisting of the pattern size (extent, number of elements) in every dimension followed by optional distribution types.

Definition at line 191 of file SeqTilePattern.h.

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::ndim().

  : SeqTilePattern(PatternArguments_t(arg, args...))
  {
    DASH_LOG_TRACE("SeqTilePattern()", "Constructor with Argument list");
    initialize_local_range();
  }

SeqTilePattern() [2/5]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::SeqTilePattern ( const SizeSpec_t &  sizespec, DistributionSpec_t  dist, const TeamSpec_t &  teamspec, dash::Team &  team = dash::Team::All()  )

inline

Constructor, initializes a pattern from explicit instances of SizeSpec, DistributionSpec, TeamSpec and a Team.

Examples:

// A 5x3 rectangle with blocked distribution in the first dimension
SeqTilePattern p1(10,20);
auto num_units = dash::Team::All.size();
// Same as
SeqTilePattern p1(SizeSpec<2>(10,20,
               DistributionSpec<2>(TILE(10/num_units),
                                   TILE(20/num_units)));
// Same as
SeqTilePattern p1(SizeSpec<2>(10,20),
               DistributionSpec<2>(TILE(10/num_units),
                                   TILE(20/num_units)));
               TeamSpec<2>(dash::Team::All(), 1));
// Same as
SeqTilePattern p1(SizeSpec<2>(10,20),
               DistributionSpec<2>(TILE(10/num_units),
                                   TILE(20/num_units)));
               // How teams are arranged in all dimensions, default
               // is an extent of all units in first, and 1 in all
               // higher dimensions:
               TeamSpec<2>(dash::Team::All(), 1),
               // The team containing the units to which the
               // pattern maps the global indices. Defaults to all
               // all units:
               dash::Team::All());

Parameters

sizespec	SeqTilePattern size (extent, number of elements) in every dimension
dist	Distribution type (BLOCKED, CYCLIC, BLOCKCYCLIC, TILE or NONE) of all dimensions. Defaults to BLOCKED in first, and NONE in higher dimensions
teamspec	Cartesian arrangement of units within the team
team	Team containing units to which this pattern maps its elements

Definition at line 239 of file SeqTilePattern.h.

    : _distspec(std::move(dist))
    , _team(&team)
    , _myid(_team->myid())
    , _teamspec(teamspec, _distspec, *_team)
    , _memory_layout(sizespec.extents())
    , _nunits(_teamspec.size())
    , _blocksize_spec(
          initialize_blocksizespec(sizespec, _distspec, _teamspec))
    , _blockspec(initialize_blockspec(sizespec, _blocksize_spec, _teamspec))
    , _local_blockspec(initialize_local_blockspec(_blockspec))
    , _local_memory_layout(initialize_local_extents(_myid))
    , _local_capacity(initialize_local_capacity(_local_memory_layout))
  {
    DASH_LOG_TRACE("SeqTilePattern()", "(sizespec, dist, teamspec, team)");
    initialize_local_range();
  }

SeqTilePattern() [3/5]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::SeqTilePattern ( const SizeSpec_t &  sizespec, const DistributionSpec_t &  dist = DistributionSpec_t(), Team &  team = dash::Team::All()  )

inline

Constructor, initializes a pattern from explicit instances of SizeSpec, DistributionSpec and a Team.

Examples:

// A 5x3 rectangle with blocked distribution in the first dimension
SeqTilePattern p1(10,20);
auto num_units = dash::Team::All.size();
// Same as
SeqTilePattern p1(SizeSpec<2>(10,20,
               DistributionSpec<2>(TILE(10/num_units),
                                   TILE(20/num_units)));
// Same as
SeqTilePattern p1(SizeSpec<2>(10,20),
               DistributionSpec<2>(TILE(10/num_units),
                                   TILE(20/num_units)));
               TeamSpec<2>(dash::Team::All(), 1));
// Same as
SeqTilePattern p1(SizeSpec<2>(10,20),
               DistributionSpec<2>(TILE(10/num_units),
                                   TILE(20/num_units)));
               // How teams are arranged in all dimensions, default
               // is an extent of all units in first, and 1 in all
               // higher dimensions:
               TeamSpec<2>(dash::Team::All(), 1),
               // The team containing the units to which the
               // pattern maps the global indices. Defaults to all
               // all units:
               dash::Team::All());

Parameters

sizespec	SeqTilePattern size (extent, number of elements) in every dimension
dist	Distribution type (BLOCKED, CYCLIC, BLOCKCYCLIC, TILE or NONE) of all dimensions. Defaults to BLOCKED in first, and NONE in higher dimensions
team	Team containing units to which this pattern maps its elements

Definition at line 300 of file SeqTilePattern.h.

  : _distspec(dist),
    _team(&team),
    _myid(_team->myid()),
    _teamspec(_distspec, *_team),
    _memory_layout(sizespec.extents()),
    _nunits(_teamspec.size()),
    _blocksize_spec(initialize_blocksizespec(
        sizespec,
        _distspec,
        _teamspec)),
    _blockspec(initialize_blockspec(
        sizespec,
        _blocksize_spec,
        _teamspec)),
    _local_blockspec(initialize_local_blockspec(
        _blockspec)),
    _local_memory_layout(
        initialize_local_extents(_myid)),
    _local_capacity(
        initialize_local_capacity(_local_memory_layout)) {
    DASH_LOG_TRACE("SeqTilePattern()", "(sizespec, dist, team)");
    initialize_local_range();
  }

SeqTilePattern() [4/5]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::SeqTilePattern ( const self_t &  other )

inline

Copy constructor.

Definition at line 336 of file SeqTilePattern.h.

  : _distspec(other._distspec),
    _team(other._team),
    _myid(_team->myid()),
    _teamspec(other._teamspec),
    _memory_layout(other._memory_layout),
    _nunits(other._nunits),
    _blocksize_spec(other._blocksize_spec),
    _blockspec(other._blockspec),
    _local_blockspec(other._local_blockspec),
    _local_memory_layout(other._local_memory_layout),
    _local_capacity(other._local_capacity),
    _lbegin(other._lbegin),
    _lend(other._lend) {
  }

SeqTilePattern() [5/5]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::SeqTilePattern ( self_t &  other )

inline

Copy constructor using non-const lvalue reference parameter.

Introduced so variadic constructor is not a better match for copy-construction.

Definition at line 358 of file SeqTilePattern.h.

  : SeqTilePattern(static_cast<const self_t &>(other))
  { }

Member Function Documentation

at() [1/3]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::at ( const std::array< IndexType, NumDimensions > &  global_coords, const ViewSpec_t &  viewspec  ) const

inline

at

Global coordinates and viewspec to local index.

See also

global_at

Pattern Concept

Definition at line 982 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::at(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent(), and dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::size().

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::at().

  {
    DASH_LOG_TRACE("SeqTilePattern.at()",
                   "gcoords:",  global_coords,
                   "viewspec:", viewspec);
    // Phase coordinates of element:
    std::array<IndexType, NumDimensions> phase_coords;
    // Coordinates of the block containing the element:
    std::array<IndexType, NumDimensions> block_coords;
    // Local coordinates of the block containing the element:
    std::array<IndexType, NumDimensions> l_block_coords;
    for (auto d = 0; d < NumDimensions; ++d) {
      auto vs_coord     = global_coords[d] + viewspec.offset(d);
      phase_coords[d]   = vs_coord % _blocksize_spec.extent(d);
      block_coords[d]   = vs_coord / _blocksize_spec.extent(d);
    }
    index_type g_block_index = _blockspec.at(block_coords);
    auto l_block_index       = g_block_index / _nunits;
    DASH_LOG_TRACE("SeqTilePattern.at",
                   "block_coords:",   block_coords,
                   "g_block_index:",  g_block_index,
                   "phase_coords:",   phase_coords,
                   "l_block_index:",  l_block_index);
    auto offset = l_block_index * _blocksize_spec.size() + // prec. blocks
                  _blocksize_spec.at(phase_coords);        // elem. phase
    DASH_LOG_TRACE_VAR("SeqTilePattern.at >", offset);
    return offset;
  }

at() [2/3]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::at ( std::array< IndexType, NumDimensions >  global_coords ) const

inline

Global coordinates to local index.

Convert given global coordinates in pattern to their respective linear local index.

See also

Pattern Concept

Definition at line 1021 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::at(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent(), and dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::size().

  {
    DASH_LOG_TRACE("SeqTilePattern.at()",
                   "gcoords:",  global_coords);
    // Phase coordinates of element:
    std::array<IndexType, NumDimensions> phase_coords{};
    // Coordinates of the block containing the element:
    std::array<IndexType, NumDimensions> block_coords{};
    // Local coordinates of the block containing the element:
    std::array<IndexType, NumDimensions> l_block_coords{};
    for (auto d = 0; d < NumDimensions; ++d) {
      auto vs_coord     = global_coords[d];
      phase_coords[d]   = vs_coord % _blocksize_spec.extent(d);
      block_coords[d]   = vs_coord / _blocksize_spec.extent(d);
    }
    index_type g_block_index = _blockspec.at(block_coords);
    auto l_block_index       = g_block_index / _nunits;
    DASH_LOG_TRACE("SeqTilePattern.at",
                   "block_coords:",   block_coords,
                   "g_block_index:",  g_block_index,
                   "phase_coords:",   phase_coords,
                   "l_block_index:",  l_block_index);
    auto offset = l_block_index * _blocksize_spec.size() + // prec. blocks
                  _blocksize_spec.at(phase_coords);        // elem. phase
    DASH_LOG_TRACE_VAR("SeqTilePattern.at >", offset);
    return offset;
  }

at() [3/3]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

template<typename ... Values>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::at ( Values ...  values ) const

inline

Global coordinates to local index.

Convert given coordinate in pattern to its linear local index.

See also

Pattern Concept

Definition at line 1058 of file SeqTilePattern.h.

References dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::at().

  {
    static_assert(
      sizeof...(values) == NumDimensions,
      "Wrong parameter number");
    std::array<IndexType, NumDimensions> inputindex = {
      (IndexType)values...
    };
    return at(inputindex);
  }

block()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

ViewSpec_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::block ( index_type  global_block_index ) const

inline

View spec (offset and extents) of block at global linear block index in global cartesian element space.

See also

Pattern Concept

Definition at line 1168 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::coords(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extents(), and dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::extents().

  {
    DASH_LOG_TRACE_VAR("SeqTilePattern.block()", global_block_index);
    // block index -> block coords -> offset
    auto g_block_coords = _blockspec.coords(global_block_index);
    DASH_LOG_TRACE_VAR("SeqTilePattern.block", g_block_coords);
    DASH_LOG_TRACE_VAR("SeqTilePattern.block", _blocksize_spec.extents());
    std::array<index_type, NumDimensions> offsets{};
    std::array<size_type, NumDimensions>  extents{};
    for (auto d = 0; d < NumDimensions; ++d) {
      auto blocksize_d = _blocksize_spec.extent(d);
      extents[d] = blocksize_d;
      offsets[d] = g_block_coords[d] * blocksize_d;
    }
    DASH_LOG_TRACE("SeqTilePattern.block",
                   "offsets:", offsets,
                   "extents:", extents);
    auto block_vs = ViewSpec_t(offsets, extents);
    DASH_LOG_TRACE_VAR("SeqTilePattern.block >", block_vs);
    return block_vs;
  }

block_at()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

index_type dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::block_at ( const std::array< index_type, NumDimensions > &  g_coords ) const

inline

block

Index of block at given global coordinates.

See also

Pattern Concept

Parameters

g_coords

Global coordinates of element

Definition at line 1145 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::at(), and dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent().

  {
    std::array<index_type, NumDimensions> block_coords;
    // Coord to block coord to unit coord:
    for (auto d = 0; d < NumDimensions; ++d) {
      block_coords[d] = g_coords[d] / _blocksize_spec.extent(d);
    }
    // Block coord to block index:
    auto block_idx = _blockspec.at(block_coords);
    DASH_LOG_TRACE("SeqTilePattern.block_at",
                   "coords", g_coords,
                   "> block index", block_idx);
    return block_idx;
  }

blocksize()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

SizeType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::blocksize ( dim_t  dimension ) const

inline

Maximum number of elements in a single block in the given dimension.

Returns

The blocksize in the given dimension

See also

Pattern Concept

Parameters

dimension

The dimension in the pattern

Definition at line 1292 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent().

  {
    return _blocksize_spec.extent(dimension);
  }

blockspec()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

const BlockSpec_t& dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::blockspec ( ) const

inline

Cartesian arrangement of pattern blocks.

Definition at line 1261 of file SeqTilePattern.h.

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::ndim().

  {
    return _blockspec;
  }

capacity()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::capacity ( ) const

inline

The maximum number of elements arranged in this pattern.

See also

Pattern Concept

Definition at line 1354 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::size().

                             {
    return _memory_layout.size();
  }

coords() [1/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

std::array<IndexType, NumDimensions> dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::coords ( IndexType  index ) const

inline

Convert given global linear offset (index) to global cartesian coordinates.

See also

Pattern Concept

Definition at line 1416 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::coords().

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local().

                           {
    return _memory_layout.coords(index);
  }

coords() [2/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

std::array<IndexType, NumDimensions> dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::coords ( IndexType  index, const ViewSpec_t &  viewspec  ) const

inline

Convert given global linear offset (index) to global cartesian coordinates using viewspec.

See also

Pattern Concept

Definition at line 1427 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::coords().

                                       {
    return _memory_layout.coords(index, viewspec);
  }

distspec()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

const DistributionSpec_t& dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::distspec ( ) const

inline

Distribution specification of this pattern.

Definition at line 1378 of file SeqTilePattern.h.

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::ndim().

                                              {
    return _distspec;
  }

extent()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

SizeType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::extent ( dim_t  dim ) const

inline

extent

The number of elements in this pattern in the given dimension.

See also

blocksize()

local_size()

local_extent()

Pattern Concept

Definition at line 532 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent().

                                   {
    if (dim >= NumDimensions || dim < 0) {
      DASH_THROW(
        dash::exception::OutOfRange,
        "Wrong dimension for SeqTilePattern::local_extent. "
        << "Expected dimension between 0 and " << NumDimensions-1 << ", "
        << "got " << dim);
    }
    return _memory_layout.extent(dim);
  }

extents()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

const std::array<SizeType, NumDimensions>& dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::extents ( ) const

inline

Size specification of the index space mapped by this pattern.

See also

Pattern Concept

Definition at line 1396 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extents().

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::block(), and dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_block_local().

                                                            {
    return _memory_layout.extents();
  }

global() [1/3]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

std::array<IndexType, NumDimensions> dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::global ( team_unit_t  unit, const std::array< IndexType, NumDimensions > &  local_coords  ) const

inline

global

Converts local coordinates of a given unit to global coordinates.

See also

Pattern Concept

Definition at line 786 of file SeqTilePattern.h.

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::global(), and dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::ndim().

  {
    // Blocks in local memory are arranged in a one-dimensional sequence.
    // Local blockspec has extents { n_local_blocks, 1, 1, ... }.
    DASH_LOG_DEBUG("SeqTilePattern.global()",
                   "unit:",    unit,
                   "lcoords:", local_coords);
    auto l_block_index  = local_coords[0] / _blocksize_spec.extent(0);
    auto g_block_index  = l_block_index * _nunits + unit;
    auto g_block_coords = _blockspec.coords(g_block_index);
    DASH_LOG_DEBUG("SeqTilePattern.global()",
                   "l_block_index:",  l_block_index,
                   "g_block_index:",  g_block_index,
                   "g_block_coords:", g_block_coords);
    // Global coordinate of local element:
    std::array<IndexType, NumDimensions> global_coords{};
    for (dim_t d = 0; d < NumDimensions; ++d) {
      auto blocksize_d     = _blocksize_spec.extent(d);
      auto phase           = local_coords[d] % blocksize_d;
      auto g_block_coord_d = g_block_coords[d];
      global_coords[d]     = (g_block_coord_d * blocksize_d) + phase;
    }
    DASH_LOG_DEBUG_VAR("SeqTilePattern.global >", global_coords);
    return global_coords;
  }

global() [2/3]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

std::array<IndexType, NumDimensions> dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::global ( const std::array< IndexType, NumDimensions > &  local_coords ) const

inline

Converts local coordinates of a active unit to global coordinates.

See also

Pattern Concept

Definition at line 819 of file SeqTilePattern.h.

References dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::global().

                                                                   {
    return global(_myid, local_coords);
  }

global() [3/3]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::global ( IndexType  local_index ) const

inline

Resolve an element's linear global index from the calling unit's local index of that element.

TODO: Optmize

See also

at Inverse of global()

Pattern Concept

Definition at line 834 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::at(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::coords(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent(), dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::global(), and dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::size().

  {
    DASH_LOG_TRACE("SeqTilePattern.global()",
                   "local_index:", local_index,
                   "unit:",        _myid);
    auto block_size    = _blocksize_spec.size();
    auto phase         = local_index % block_size;
    auto l_block_index = local_index / block_size;
    // Block coordinate in local memory:
    auto l_block_coord = _local_blockspec.coords(l_block_index);
    // Coordinate of element in block:
    auto phase_coord   = _blocksize_spec.coords(phase);
    DASH_LOG_TRACE("SeqTilePattern.global",
                   "local block index:",  l_block_index,
                   "local block coords:", l_block_coord,
                   "phase coords:",       phase_coord);
    // Coordinate of element in local memory:
    std::array<IndexType, NumDimensions> l_coords{};
    for (auto d = 0; d < NumDimensions; ++d) {
      l_coords[d] = l_block_coord[d] * _blocksize_spec.extent(d) +
                    phase_coord[d];
    }
    std::array<IndexType, NumDimensions> g_coords =
      global(_myid, l_coords);
    auto offset = _memory_layout.at(g_coords);
    DASH_LOG_TRACE_VAR("SeqTilePattern.global >", offset);
    return offset;
  }

global_at() [1/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::global_at ( const std::array< IndexType, NumDimensions > &  global_coords, const ViewSpec_t &  viewspec  ) const

inline

Global coordinates and viewspec to global position in the pattern's block-wise iteration order.

NOTE: Expects extent[d] to be a multiple of blocksize[d] * nunits[d] to ensure the balanced property.

See also

at

local_at

Pattern Concept

Definition at line 900 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::at(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent(), and dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::size().

  {
    DASH_LOG_TRACE("SeqTilePattern.global_at()",
                   "gcoords:",  global_coords,
                   "viewspec:", viewspec);
    // Phase coordinates of element:
    std::array<IndexType, NumDimensions> phase_coords{};
    // Coordinates of the block containing the element:
    std::array<IndexType, NumDimensions> block_coords{};
    for (auto d = 0; d < NumDimensions; ++d) {
      auto vs_coord   = global_coords[d] + viewspec.offset(d);
      phase_coords[d] = vs_coord % _blocksize_spec.extent(d);
      block_coords[d] = vs_coord / _blocksize_spec.extent(d);
    }
    DASH_LOG_TRACE("SeqTilePattern.global_at",
                   "block coords:", block_coords,
                   "phase coords:", phase_coords);
    // Number of blocks preceeding the coordinates' block, equivalent
    // to linear global block offset:
    auto block_index = _blockspec.at(block_coords);
    DASH_LOG_TRACE("SeqTilePattern.global_at",
                   "block index:",   block_index);
    auto offset = block_index * _blocksize_spec.size() + // preceed. blocks
                  _blocksize_spec.at(phase_coords);      // element phase
    DASH_LOG_TRACE_VAR("SeqTilePattern.global_at >", offset);
    return offset;
  }

global_at() [2/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::global_at ( const std::array< IndexType, NumDimensions > &  global_coords ) const

inline

Global coordinates to global position in the pattern's block-wise iteration order.

NOTE: Expects extent[d] to be a multiple of blocksize[d] * nunits[d] to ensure the balanced property.

See also

at

local_at

Pattern Concept

Definition at line 943 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::at(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent(), and dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::size().

  {
    DASH_LOG_TRACE("SeqTilePattern.global_at()",
                   "gcoords:",  global_coords);
    // Phase coordinates of element:
    std::array<IndexType, NumDimensions> phase_coords;
    // Coordinates of the block containing the element:
    std::array<IndexType, NumDimensions> block_coords;
    for (auto d = 0; d < NumDimensions; ++d) {
      auto vs_coord   = global_coords[d];
      phase_coords[d] = vs_coord % _blocksize_spec.extent(d);
      block_coords[d] = vs_coord / _blocksize_spec.extent(d);
    }
    DASH_LOG_TRACE("SeqTilePattern.global_at",
                   "block coords:", block_coords,
                   "phase coords:", phase_coords);
    // Number of blocks preceeding the coordinates' block, equivalent
    // to linear global block offset:
    auto block_index = _blockspec.at(block_coords);
    DASH_LOG_TRACE("SeqTilePattern.global_at",
                   "block index:",   block_index);
    auto offset = block_index * _blocksize_spec.size() + // preceed. blocks
                  _blocksize_spec.at(phase_coords);      // element phase
    DASH_LOG_TRACE_VAR("SeqTilePattern.global_at >", offset);
    return offset;
  }

global_index()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::global_index ( team_unit_t  unit, const std::array< IndexType, NumDimensions > &  local_coords  ) const

inline

Resolve an element's linear global index from a given unit's local coordinates of that element.

See also

at

global_at

Pattern Concept

Definition at line 873 of file SeqTilePattern.h.

  {
    DASH_LOG_TRACE("SeqTilePattern.global_index()",
                   "unit:",         unit,
                   "local_coords:", local_coords);
    std::array<IndexType, NumDimensions> global_coords =
      global(unit, local_coords);
    auto g_index = _memory_layout.at(global_coords);
    DASH_LOG_TRACE_VAR("SeqTilePattern.global_index >", g_index);
    return g_index;
  }

has_local_elements()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

bool dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::has_local_elements ( dim_t  dim, IndexType  dim_offset, team_unit_t  unit, const ViewSpec_t &  viewspec  ) const

inline

is_local

Whether there are local elements in a dimension at a given offset, e.g. in a specific row or column.

See also

Pattern Concept

Parameters

dim	Dimension to check
dim_offset	Offset in dimension
unit	DART id of the unit
viewspec	Viewspec to apply

Definition at line 1079 of file SeqTilePattern.h.

  {
    DASH_LOG_TRACE_VAR("SeqTilePattern.has_local_elements()", dim);
    DASH_LOG_TRACE_VAR("SeqTilePattern.has_local_elements()", dim_offset);
    DASH_LOG_TRACE_VAR("SeqTilePattern.has_local_elements()", unit);
    DASH_LOG_TRACE_VAR("SeqTilePattern.has_local_elements()", viewspec);
    // Apply viewspec offset in dimension to given position
    dim_offset += viewspec.offset(dim);
    // Offset to block offset
    IndexType block_coord_d    = dim_offset / _blocksize_spec.extent(dim);
    DASH_LOG_TRACE_VAR("SeqTilePattern.has_local_elements", block_coord_d);
    // Coordinate of unit in team spec in given dimension
    IndexType teamspec_coord_d = block_coord_d % _teamspec.extent(dim);
    DASH_LOG_TRACE_VAR("SeqTilePattern.has_local_elements",
                       teamspec_coord_d);
    // Check if unit id lies in cartesian sub-space of team spec
    return _teamspec.includes_index(
              teamspec_coord_d,
              dim,
              dim_offset);
  }

is_local() [1/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

bool dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::is_local ( IndexType  index, team_unit_t  unit  ) const

inline

Whether the given global index is local to the specified unit.

See also

Pattern Concept

Definition at line 1114 of file SeqTilePattern.h.

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::is_local().

  {
    auto glob_coords = coords(index);
    auto coords_unit = unit_at(glob_coords);
    DASH_LOG_TRACE_VAR("SeqTilePattern.is_local >", (coords_unit == unit));
    return coords_unit == unit;
  }

is_local() [2/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

bool dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::is_local ( IndexType  index ) const

inline

Whether the given global index is local to the unit that created this pattern instance.

See also

Pattern Concept

Definition at line 1130 of file SeqTilePattern.h.

References dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::is_local().

  {
    return is_local(index, _myid);
  }

lbegin()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::lbegin ( ) const

inline

Resolves the global index of the first local element in the pattern.

See also

Pattern Concept

Definition at line 420 of file SeqTilePattern.h.

                           {
    return _lbegin;
  }

lend()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::lend ( ) const

inline

Resolves the global index past the last local element in the pattern.

See also

Pattern Concept

Definition at line 429 of file SeqTilePattern.h.

                         {
    return _lend;
  }

local() [1/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

local_coords_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local ( const std::array< IndexType, NumDimensions > &  global_coords ) const

inline

Converts global coordinates to their associated unit and its respective local coordinates.

See also

Pattern Concept

Definition at line 678 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::at(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent(), and dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_coords().

  {
    local_coords_t l_coords;
    std::array<IndexType, NumDimensions> local_coords;
    std::array<IndexType, NumDimensions> g_block_coords;
    std::array<IndexType, NumDimensions> phase;
    for (dim_t d = 0; d < NumDimensions; ++d) {
      auto blocksize_d  = _blocksize_spec.extent(d);
      g_block_coords[d] = global_coords[d] / blocksize_d;
      phase[d]          = global_coords[d] % blocksize_d;
    }
    auto g_block_index = _blockspec.at(g_block_coords);
    l_coords.unit      = g_block_index % _nunits;
    auto l_block_index = g_block_index / _nunits;
    local_coords[0]    = l_block_index * _blocksize_spec.extent(0) +
                         phase[0];
    for (dim_t d = 1; d < NumDimensions; ++d) {
      local_coords[d] = phase[d];
    }
    l_coords.coords = local_coords;
    return l_coords;
  }

local() [2/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

local_index_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local ( IndexType  g_index ) const

inline

Converts global index to its associated unit and respective local index.

TODO: Unoptimized

See also

Pattern Concept

Definition at line 710 of file SeqTilePattern.h.

References dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::coords(), and dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_index().

  {
    DASH_LOG_TRACE_VAR("SeqTilePattern.local()", g_index);
    // TODO: Implement dedicated method for this, conversion to/from
    //       global coordinates is expensive.
    return local_index(coords(g_index));
  }

local_at() [1/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_at ( const std::array< IndexType, NumDimensions > &  local_coords, const ViewSpec_t &  viewspec  ) const

inline

local

Convert given local coordinates and viewspec to linear local offset (index).

See also

Pattern Concept

Parameters

local_coords	Point in local memory
viewspec	View specification (local offsets) to apply on local_coords

Definition at line 599 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::at(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extents(), dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_index(), and dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::size().

  {
    DASH_LOG_TRACE("SeqTilePattern.local_at()",
                   "local_coords:", local_coords,
                   "view:",         viewspec,
                   "local blocks:", _local_blockspec.extents());
    // Phase coordinates of element:
    std::array<IndexType, NumDimensions> phase_coords{};
    // Coordinates of the local block containing the element:
    std::array<IndexType, NumDimensions> block_coords_l{};
    for (auto d = 0; d < NumDimensions; ++d) {
      auto vs_offset_d  = viewspec.offset(d);
      auto vs_coord_d   = local_coords[d] + vs_offset_d;
      auto block_size_d = _blocksize_spec.extent(d);
      phase_coords[d]   = vs_coord_d % block_size_d;
      block_coords_l[d] = vs_coord_d / block_size_d;
    }
    DASH_LOG_TRACE("SeqTilePattern.local_at",
                   "local_coords:",       local_coords,
                   "view:",               viewspec,
                   "local blocks:",       _local_blockspec.extents(),
                   "local block coords:", block_coords_l,
                   "phase coords:",       phase_coords);
    // Number of blocks preceeding the coordinates' block:
    auto block_offset_l = _local_blockspec.at(block_coords_l);
    auto local_index    =
           block_offset_l * _blocksize_spec.size() + // preceeding blocks
           _blocksize_spec.at(phase_coords);         // element phase
    DASH_LOG_TRACE_VAR("SeqTilePattern.local_at >", local_index);
    return local_index;
  }

local_at() [2/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_at ( const std::array< IndexType, NumDimensions > &  local_coords ) const

inline

Convert given local coordinates to linear local offset (index).

See also

Pattern Concept

Parameters

local_coords

Point in local memory

Definition at line 640 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::at(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extents(), dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_index(), and dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::size().

  {
    DASH_LOG_TRACE("SeqTilePattern.local_at()",
                   "local coords:", local_coords,
                   "local blocks:", _local_blockspec.extents());
    // Phase coordinates of element:
    std::array<IndexType, NumDimensions> phase_coords;
    // Coordinates of the local block containing the element:
    std::array<IndexType, NumDimensions> block_coords_l;
    for (auto d = 0; d < NumDimensions; ++d) {
      auto gcoord_d     = local_coords[d];
      auto block_size_d = _blocksize_spec.extent(d);
      phase_coords[d]   = gcoord_d % block_size_d;
      block_coords_l[d] = gcoord_d / block_size_d;
    }
    DASH_LOG_TRACE("SeqTilePattern.local_at",
                   "local_coords:",       local_coords,
                   "local blocks:",       _local_blockspec.extents(),
                   "local block coords:", block_coords_l,
                   "block size:",         _blocksize_spec.extents(),
                   "phase coords:",       phase_coords);
    // Number of blocks preceeding the coordinates' block:
    auto block_offset_l = _local_blockspec.at(block_coords_l);
    auto local_index    =
           block_offset_l * _blocksize_spec.size() + // preceeding blocks
           _blocksize_spec.at(phase_coords);         // element phase
    DASH_LOG_TRACE_VAR("SeqTilePattern.local_at >", local_index);
    return local_index;
  }

local_block() [1/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

ViewSpec_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_block ( index_type  local_block_index ) const

inline

View spec (offset and extents) of block at local linear block index in global cartesian element space.

See also

Pattern Concept

Definition at line 1197 of file SeqTilePattern.h.

  {
    return local_block(_myid, local_block_index);
  }

local_block() [2/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

ViewSpec_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_block ( team_unit_t  unit, index_type  local_block_index  ) const

inline

View spec (offset and extents) of block at local linear block index in global cartesian element space.

See also

Pattern Concept

Definition at line 1209 of file SeqTilePattern.h.

  {
    DASH_LOG_TRACE("SeqTilePattern.local_block()",
                   "unit:",       unit,
                   "lblock_idx:", local_block_index);
    auto g_block_index  = local_block_index * _nunits + unit;
    auto g_block_coords = _blockspec.coords(g_block_index);

    DASH_LOG_TRACE_VAR("SeqTilePattern.local_block", g_block_coords);
    std::array<index_type, NumDimensions> offsets{};
    std::array<size_type, NumDimensions>  extents{};
    for (auto d = 0; d < NumDimensions; ++d) {
      auto blocksize_d = _blocksize_spec.extent(d);
      offsets[d] = g_block_coords[d] * blocksize_d;
      extents[d] = blocksize_d;
    }
    ViewSpec_t block_vs(offsets, extents);
    DASH_LOG_TRACE_VAR("SeqTilePattern.local_block >", block_vs);
    return block_vs;
  }

local_block_local()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

ViewSpec_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_block_local ( index_type  local_block_index ) const

inline

View spec (offset and extents) of block at local linear block index in local cartesian element space.

See also

Pattern Concept

Definition at line 1238 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::coords(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extents(), and dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::extents().

  {
    DASH_LOG_TRACE_VAR("SeqTilePattern.local_block_local()",
                       local_block_index);
    // Initialize viewspec result with block extents:
    std::array<index_type, NumDimensions> offsets{};
    std::array<size_type, NumDimensions>  extents =
      _blocksize_spec.extents();
    // Local block index to local block coords:
    auto l_block_coords = _local_blockspec.coords(local_block_index);
    // Local block coords to local element offset:
    for (auto d = 0; d < NumDimensions; ++d) {
      offsets[d] = l_block_coords[d] * extents[d];
    }
    ViewSpec_t block_vs(offsets, extents);
    DASH_LOG_TRACE_VAR("SeqTilePattern.local_block_local >", block_vs);
    return block_vs;
  }

local_blockspec() [1/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

const BlockSpec_t& dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_blockspec ( ) const

inline

Cartesian arrangement of pattern blocks.

Definition at line 1269 of file SeqTilePattern.h.

  {
    return _local_blockspec;
  }

local_blockspec() [2/2]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

BlockSpec_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_blockspec ( team_unit_t  unit ) const

inline

Cartesian arrangement of pattern blocks.

Definition at line 1277 of file SeqTilePattern.h.

  {
    if (unit == _myid) {
      return local_blockspec();
    }
    return initialize_local_blockspec( _blockspec, unit);
  }

local_capacity()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

SizeType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_capacity ( ) const

inline

Maximum number of elements assigned to a single unit in total, equivalent to the local capacity of every unit in this pattern.

See also

Pattern Concept

Definition at line 1317 of file SeqTilePattern.h.

References dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_size().

                                  {
    return local_size();
  }

local_coords()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

std::array<IndexType, NumDimensions> dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_coords ( const std::array< IndexType, NumDimensions > &  global_coords ) const

inline

Converts global coordinates to their associated unit's respective local coordinates.

See also

Pattern Concept

Definition at line 725 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent().

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local().

  {
    std::array<IndexType, NumDimensions> local_coords{};
    for (dim_t d = 0; d < NumDimensions; ++d) {
      auto nunits_d        = _teamspec.extent(d);
      auto blocksize_d     = _blocksize_spec.extent(d);
      auto block_coord_d   = global_coords[d] / blocksize_d;
      auto phase_d         = global_coords[d] % blocksize_d;
      auto l_block_coord_d = block_coord_d / nunits_d;
      local_coords[d]      = (l_block_coord_d * blocksize_d) + phase_d;
    }
    return local_coords;
  }

local_extent()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

SizeType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_extent ( dim_t  dim ) const

inline

The actual number of elements in this pattern that are local to the calling unit in the given dimension.

See also

local_extents()

blocksize()

local_size()

extent()

Pattern Concept

Definition at line 554 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent().

  {
    if (dim >= NumDimensions || dim < 0) {
      DASH_THROW(
        dash::exception::OutOfRange,
        "Wrong dimension for SeqTilePattern::local_extent. "
        << "Expected dimension between 0 and " << NumDimensions-1 << ", "
        << "got " << dim);
    }
    return _local_memory_layout.extent(dim);
  }

local_extents()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

std::array<SizeType, NumDimensions> dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_extents ( team_unit_t  unit = UNDEFINED_TEAM_UNIT_ID ) const

inline

The actual number of elements in this pattern that are local to the given unit, by dimension.

See also

local_extent()

blocksize()

local_size()

extent()

Pattern Concept

Definition at line 577 of file SeqTilePattern.h.

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::ndim().

  {
    if (unit == UNDEFINED_TEAM_UNIT_ID) {
      unit = _myid;
    }
    if (unit == _myid) {
      return _local_memory_layout.extents();
    }
    return initialize_local_extents(unit);
  }

local_index()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

local_index_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_index ( const std::array< IndexType, NumDimensions > &  global_coords ) const

inline

Resolves the unit and the local index from global coordinates.

See also

Pattern Concept

Definition at line 745 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::at(), and dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent().

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local(), and dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_at().

  {
    DASH_LOG_TRACE_VAR("SeqTilePattern.local_index()", global_coords);
    // Global coordinates to unit and local offset:
    // Phase coordinates of element:
    std::array<IndexType, NumDimensions> phase_coords{};
    // Coordinates of the block containing the element:
    std::array<IndexType, NumDimensions> block_coords{};
    // Local coordinates of the block containing the element:
    std::array<IndexType, NumDimensions> l_block_coords{};
    for (auto d = 0; d < NumDimensions; ++d) {
      auto vs_coord     = global_coords[d];
      phase_coords[d]   = vs_coord % _blocksize_spec.extent(d);
      block_coords[d]   = vs_coord / _blocksize_spec.extent(d);
    }
    index_type g_block_index = _blockspec.at(block_coords);
    team_unit_t unit(g_block_index % _nunits);
    auto l_block_index       = g_block_index / _nunits;
    DASH_LOG_TRACE("SeqTilePattern.at",
                   "block_coords:",   block_coords,
                   "g_block_index:",  g_block_index,
                   "phase_coords:",   phase_coords,
                   "l_block_index:",  l_block_index,
                   "unit:",           unit);
    index_type l_index = l_block_index * _blocksize_spec.size() + // prec. blocks
                         _blocksize_spec.at(phase_coords);        // elem. phase
    DASH_LOG_TRACE_VAR("SeqTilePattern.local_index >", l_index);

    return local_index_t { unit, l_index };
  }

local_size()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

SizeType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_size ( team_unit_t  unit = UNDEFINED_TEAM_UNIT_ID ) const

inline

The actual number of elements in this pattern that are local to the calling unit in total.

See also

blocksize()

local_extent()

local_capacity()

Pattern Concept

Definition at line 1331 of file SeqTilePattern.h.

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_capacity(), and dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::ndim().

                                                                       {
    if (unit == DART_UNDEFINED_UNIT_ID) {
      return _local_memory_layout.size();
    }
    // Non-local query, requires to construct local memory layout of
    // remote unit:
    return LocalMemoryLayout_t(initialize_local_extents(unit)).size();
  }

max_blocksize()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

SizeType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::max_blocksize ( ) const

inline

Maximum number of elements in a single block in all dimensions.

Returns

The maximum number of elements in a single block assigned to a unit.

See also

Pattern Concept

Definition at line 1307 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::size().

                                 {
    return _blocksize_spec.size();
  }

memory_order()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

static constexpr MemArrange dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::memory_order ( )

inlinestatic

Memory order followed by the pattern.

Definition at line 1436 of file SeqTilePattern.h.

                                             {
    return Arrangement;
  }

ndim()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

static constexpr dim_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::ndim ( )

inlinestatic

Number of dimensions of the cartesian space partitioned by the pattern.

Definition at line 1444 of file SeqTilePattern.h.

References dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::blockspec(), dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::distspec(), dash::CartesianSpace< NumDimensions, SizeType >::extent(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent(), dash::CartesianSpace< NumDimensions, SizeType >::extents(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extents(), dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::global(), dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_extents(), dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::local_size(), dash::Distribution::max_blocksize_in_range(), dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::SeqTilePattern(), dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::size(), and dash::UNDEFINED_TEAM_UNIT_ID.

                                {
    return NumDimensions;
  }

num_units()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::num_units ( ) const

inline

The number of units to which this pattern's elements are mapped.

See also

Pattern Concept

Definition at line 1345 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::size().

                              {
    return _teamspec.size();
  }

operator!=()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

bool dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::operator!= ( const self_t &  other ) const

inline

Inquality comparison operator.

Parameters

other

SeqTilePattern instance to compare for inequality

Definition at line 387 of file SeqTilePattern.h.

          {
    return !(*this == other);
  }

operator=()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

SeqTilePattern& dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::operator= ( const SeqTilePattern< NumDimensions, Arrangement, IndexType > &  other )

inline

Assignment operator.

Definition at line 397 of file SeqTilePattern.h.

                                                           {
    if (this != &other) {
      _distspec            = other._distspec;
      _team                = other._team;
      _teamspec            = other._teamspec;
      _memory_layout       = other._memory_layout;
      _local_memory_layout = other._local_memory_layout;
      _blocksize_spec      = other._blocksize_spec;
      _blockspec           = other._blockspec;
      _local_blockspec     = other._local_blockspec;
      _local_capacity      = other._local_capacity;
      _nunits              = other._nunits;
      _lbegin              = other._lbegin;
      _lend                = other._lend;
    }
    return *this;
  }

operator==()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

bool dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::operator== ( const self_t &  other ) const

inline

Equality comparison operator.

Parameters

other

SeqTilePattern instance to compare for equality

Definition at line 365 of file SeqTilePattern.h.

  {
    if (this == &other) {
      return true;
    }
    // no need to compare all members as most are derived from
    // constructor arguments.
    return(
      _distspec       == other._distspec &&
      _teamspec       == other._teamspec &&
      _memory_layout  == other._memory_layout &&
      _blockspec      == other._blockspec &&
      _blocksize_spec == other._blocksize_spec &&
      _nunits         == other._nunits
    );
  }

size()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

IndexType dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::size ( ) const

inline

The number of elements arranged in this pattern.

See also

Pattern Concept

Definition at line 1363 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::size().

                         {
    return _memory_layout.size();
  }

sizespec()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

SizeSpec_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::sizespec ( ) const

inline

Size specification of the index space mapped by this pattern.

See also

Pattern Concept

Definition at line 1387 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extents().

                              {
    return SizeSpec_t(_memory_layout.extents());
  }

team()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

dash::Team& dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::team ( ) const

inline

The Team containing the units to which this pattern's elements are mapped.

Definition at line 1371 of file SeqTilePattern.h.

                          {
    return *_team;
  }

teamspec()

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

const TeamSpec_t& dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::teamspec ( ) const

inline

Cartesian arrangement of the Team containing the units to which this pattern's elements are mapped.

See also

Pattern Concept

Definition at line 1406 of file SeqTilePattern.h.

                                      {
    return _teamspec;
  }

unit_at() [1/4]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

team_unit_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::unit_at ( const std::array< IndexType, NumDimensions > &  coords, const ViewSpec_t &  viewspec  ) const

inline

unit_at

Convert given point in pattern to its assigned unit id.

See also

Pattern Concept

Parameters

coords	Absolute coordinates of the point relative to the given view.
viewspec	View specification (offsets) of the coordinates.

Definition at line 442 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::at(), and dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent().

Referenced by dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::unit_at().

  {
    DASH_LOG_TRACE("SeqTilePattern.unit_at()",
                   "coords:",   coords,
                   "viewspec:", viewspec);
    std::array<IndexType, NumDimensions> block_coords;
    for (auto d = 0; d < NumDimensions; ++d) {
      auto vs_coord      = coords[d] + viewspec.offset(d);
      // Global block coordinate:
      block_coords[d]   = vs_coord / _blocksize_spec.extent(d);
    }
    auto block_idx = _blockspec.at(block_coords);

    team_unit_t unit_id(block_idx % _nunits);
    DASH_LOG_TRACE_VAR("SeqTilePattern.unit_at", block_coords);
    DASH_LOG_TRACE_VAR("SeqTilePattern.unit_at", block_idx);
    DASH_LOG_TRACE_VAR("SeqTilePattern.unit_at >", unit_id);
    return unit_id;
  }

unit_at() [2/4]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

team_unit_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::unit_at ( const std::array< IndexType, NumDimensions > &  coords ) const

inline

Convert given coordinate in pattern to its assigned unit id.

See also

Pattern Concept

Definition at line 471 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::at(), and dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::extent().

  {
    DASH_LOG_TRACE("SeqTilePattern.unit_at()",
                   "coords:",   coords);
    std::array<IndexType, NumDimensions> block_coords{};
    // Unit id from diagonals in cartesian index space,
    // e.g (x + y + z) % nunits
    for (auto d = 0; d < NumDimensions; ++d) {
      // Global block coordinate:
      block_coords[d]   = coords[d] / _blocksize_spec.extent(d);
    }
    auto block_idx = _blockspec.at(block_coords);
    team_unit_t unit_id(block_idx % _nunits);
    DASH_LOG_TRACE_VAR("SeqTilePattern.unit_at", block_coords);
    DASH_LOG_TRACE_VAR("SeqTilePattern.unit_at", block_idx);
    DASH_LOG_TRACE_VAR("SeqTilePattern.unit_at >", unit_id);
    return unit_id;
  }

unit_at() [3/4]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

team_unit_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::unit_at ( IndexType  global_pos, const ViewSpec_t &  viewspec  ) const

inline

Convert given global linear index to its assigned unit id.

See also

Pattern Concept

Parameters

global_pos	Global linear element offset
viewspec	View to apply global position

Definition at line 496 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::coords(), and dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::unit_at().

  {
    auto global_coords = _memory_layout.coords(global_pos);
    return unit_at(global_coords, viewspec);
  }

unit_at() [4/4]

template<dim_t NumDimensions, MemArrange Arrangement = ROW_MAJOR, typename IndexType = dash::default_index_t>

team_unit_t dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::unit_at ( IndexType  global_pos ) const

inline

Convert given global linear index to its assigned unit id.

See also

Pattern Concept

Parameters

global_pos

Global linear element offset

Definition at line 511 of file SeqTilePattern.h.

References dash::CartesianIndexSpace< NumDimensions, Arrangement, IndexType >::coords(), and dash::SeqTilePattern< NumDimensions, Arrangement, IndexType >::unit_at().

  {
    auto global_coords = _memory_layout.coords(global_pos);
    return unit_at(global_coords);
  }

---

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

• /tmp/tmporruphar/dash/include/dash/pattern/SeqTilePattern.h