sorting.hpp
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16 
17 #pragma once
18 
19 #include <cudf/aggregation.hpp>
20 #include <cudf/types.hpp>
21 
23 
24 #include <memory>
25 #include <vector>
26 
27 namespace cudf {
28 
50 std::unique_ptr<column> sorted_order(
51  table_view const& input,
52  std::vector<order> const& column_order = {},
53  std::vector<null_order> const& null_precedence = {},
54  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
55 
64 std::unique_ptr<column> stable_sorted_order(
65  table_view const& input,
66  std::vector<order> const& column_order = {},
67  std::vector<null_order> const& null_precedence = {},
68  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
69 
87  std::vector<order> const& column_order,
88  std::vector<null_order> const& null_precedence);
89 
104 std::unique_ptr<table> sort(
105  table_view const& input,
106  std::vector<order> const& column_order = {},
107  std::vector<null_order> const& null_precedence = {},
108  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
109 
131 std::unique_ptr<table> sort_by_key(
132  table_view const& values,
133  table_view const& keys,
134  std::vector<order> const& column_order = {},
135  std::vector<null_order> const& null_precedence = {},
136  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
137 
161 std::unique_ptr<table> stable_sort_by_key(
162  table_view const& values,
163  table_view const& keys,
164  std::vector<order> const& column_order = {},
165  std::vector<null_order> const& null_precedence = {},
166  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
167 
197 std::unique_ptr<column> rank(
198  column_view const& input,
199  rank_method method,
200  order column_order,
201  null_policy null_handling,
202  null_order null_precedence,
203  bool percentage,
204  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
205 
248 std::unique_ptr<column> segmented_sorted_order(
249  table_view const& keys,
250  column_view const& segment_offsets,
251  std::vector<order> const& column_order = {},
252  std::vector<null_order> const& null_precedence = {},
253  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
254 
260 std::unique_ptr<column> stable_segmented_sorted_order(
261  table_view const& keys,
262  column_view const& segment_offsets,
263  std::vector<order> const& column_order = {},
264  std::vector<null_order> const& null_precedence = {},
265  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
266 
313 std::unique_ptr<table> segmented_sort_by_key(
314  table_view const& values,
315  table_view const& keys,
316  column_view const& segment_offsets,
317  std::vector<order> const& column_order = {},
318  std::vector<null_order> const& null_precedence = {},
319  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
320 
326 std::unique_ptr<table> stable_segmented_sort_by_key(
327  table_view const& values,
328  table_view const& keys,
329  column_view const& segment_offsets,
330  std::vector<order> const& column_order = {},
331  std::vector<null_order> const& null_precedence = {},
332  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
333  // end of group
335 } // namespace cudf
cudf::rank_method
rank_method
Tie-breaker method to use for ranking the column.
Definition: aggregation.hpp:53
per_device_resource.hpp
cudf::null_policy
null_policy
Enum to specify whether to include nulls or exclude nulls.
Definition: types.hpp:111
cudf::sort_by_key
std::unique_ptr< table > sort_by_key(table_view const &values, table_view const &keys, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Performs a key-value sort.
cudf::column_view
A non-owning, immutable view of device data as a column of elements, some of which may be null as ind...
Definition: column_view.hpp:313
types.hpp
Type declarations for libcudf.
cudf::table
A set of cudf::column's of the same size.
Definition: table.hpp:40
cudf::rank
std::unique_ptr< column > rank(column_view const &input, rank_method method, order column_order, null_policy null_handling, null_order null_precedence, bool percentage, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Computes the ranks of input column in sorted order.
cudf::stable_sorted_order
std::unique_ptr< column > stable_sorted_order(table_view const &input, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Computes the row indices that would produce input in a stable lexicographical sorted order.
cudf::segmented_sort_by_key
std::unique_ptr< table > segmented_sort_by_key(table_view const &values, table_view const &keys, column_view const &segment_offsets, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Performs a lexicographic segmented sort of a table.
cudf::stable_sort_by_key
std::unique_ptr< table > stable_sort_by_key(table_view const &values, table_view const &keys, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Performs a key-value stable sort.
cudf::null_order
null_order
Indicates how null values compare against all other values.
Definition: types.hpp:144
cudf::is_sorted
bool is_sorted(cudf::table_view const &table, std::vector< order > const &column_order, std::vector< null_order > const &null_precedence)
Checks whether the rows of a table are sorted in a lexicographical order.
cudf::stable_segmented_sorted_order
std::unique_ptr< column > stable_segmented_sorted_order(table_view const &keys, column_view const &segment_offsets, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Returns sorted order after stably sorting each segment in the table.
cudf::table_view
A set of cudf::column_view's of the same size.
Definition: table_view.hpp:187
cudf::segmented_sorted_order
std::unique_ptr< column > segmented_sorted_order(table_view const &keys, column_view const &segment_offsets, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Returns sorted order after sorting each segment in the table.
cudf
cuDF interfaces
Definition: aggregation.hpp:34
cudf::sorted_order
std::unique_ptr< column > sorted_order(table_view const &input, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Computes the row indices that would produce input in a lexicographical sorted order.
cudf::stable_segmented_sort_by_key
std::unique_ptr< table > stable_segmented_sort_by_key(table_view const &values, table_view const &keys, column_view const &segment_offsets, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Performs a stably lexicographic segmented sort of a table.
aggregation.hpp
Representation for specifying desired aggregations from aggregation-based APIs, e....
rmm::mr::device_memory_resource
cudf::sort
std::unique_ptr< table > sort(table_view const &input, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Performs a lexicographic sort of the rows of a table.
cudf::order
order
Indicates the order in which elements should be sorted.
Definition: types.hpp:103