libcudf  23.12.00
sorting.hpp
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16 
17 #pragma once
18 
19 #include <cudf/aggregation.hpp>
20 #include <cudf/types.hpp>
21 #include <cudf/utilities/default_stream.hpp>
22 
24 
25 #include <memory>
26 #include <vector>
27 
28 namespace cudf {
29 
52 std::unique_ptr<column> sorted_order(
53  table_view const& input,
54  std::vector<order> const& column_order = {},
55  std::vector<null_order> const& null_precedence = {},
58 
67 std::unique_ptr<column> stable_sorted_order(
68  table_view const& input,
69  std::vector<order> const& column_order = {},
70  std::vector<null_order> const& null_precedence = {},
73 
92  std::vector<order> const& column_order,
93  std::vector<null_order> const& null_precedence,
95 
111 std::unique_ptr<table> sort(
112  table_view const& input,
113  std::vector<order> const& column_order = {},
114  std::vector<null_order> const& null_precedence = {},
117 
140 std::unique_ptr<table> sort_by_key(
141  table_view const& values,
142  table_view const& keys,
143  std::vector<order> const& column_order = {},
144  std::vector<null_order> const& null_precedence = {},
147 
172 std::unique_ptr<table> stable_sort_by_key(
173  table_view const& values,
174  table_view const& keys,
175  std::vector<order> const& column_order = {},
176  std::vector<null_order> const& null_precedence = {},
179 
210 std::unique_ptr<column> rank(
211  column_view const& input,
212  rank_method method,
213  order column_order,
214  null_policy null_handling,
215  null_order null_precedence,
216  bool percentage,
219 
263 std::unique_ptr<column> segmented_sorted_order(
264  table_view const& keys,
265  column_view const& segment_offsets,
266  std::vector<order> const& column_order = {},
267  std::vector<null_order> const& null_precedence = {},
270 
276 std::unique_ptr<column> stable_segmented_sorted_order(
277  table_view const& keys,
278  column_view const& segment_offsets,
279  std::vector<order> const& column_order = {},
280  std::vector<null_order> const& null_precedence = {},
283 
331 std::unique_ptr<table> segmented_sort_by_key(
332  table_view const& values,
333  table_view const& keys,
334  column_view const& segment_offsets,
335  std::vector<order> const& column_order = {},
336  std::vector<null_order> const& null_precedence = {},
339 
345 std::unique_ptr<table> stable_segmented_sort_by_key(
346  table_view const& values,
347  table_view const& keys,
348  column_view const& segment_offsets,
349  std::vector<order> const& column_order = {},
350  std::vector<null_order> const& null_precedence = {},
353  // end of group
355 } // namespace cudf
Representation for specifying desired aggregations from aggregation-based APIs, e....
A non-owning, immutable view of device data as a column of elements, some of which may be null as ind...
A set of cudf::column_view's of the same size.
Definition: table_view.hpp:187
A set of cudf::column's of the same size.
Definition: table.hpp:40
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::cuda_stream_view stream=cudf::get_default_stream(), rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Returns sorted order after stably sorting each segment in the table.
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::cuda_stream_view stream=cudf::get_default_stream(), rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Performs a stably lexicographic segmented sort of a table.
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::cuda_stream_view stream=cudf::get_default_stream(), rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Performs a key-value stable sort.
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::cuda_stream_view stream=cudf::get_default_stream(), rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Returns sorted order after sorting each segment in the table.
std::unique_ptr< table > sort(table_view const &input, std::vector< order > const &column_order={}, std::vector< null_order > const &null_precedence={}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Performs a lexicographic sort of the rows of a table.
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::cuda_stream_view stream=cudf::get_default_stream(), 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.
bool is_sorted(cudf::table_view const &table, std::vector< order > const &column_order, std::vector< null_order > const &null_precedence, rmm::cuda_stream_view stream=cudf::get_default_stream())
Checks whether the rows of a table are sorted in a lexicographical 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::cuda_stream_view stream=cudf::get_default_stream(), 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.
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::cuda_stream_view stream=cudf::get_default_stream(), rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Performs a key-value sort.
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::cuda_stream_view stream=cudf::get_default_stream(), rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Performs a lexicographic segmented sort of a table.
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::cuda_stream_view stream=cudf::get_default_stream(), rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Computes the ranks of input column in sorted order.
rank_method
Tie-breaker method to use for ranking the column.
Definition: aggregation.hpp:53
device_memory_resource * get_current_device_resource()
null_order
Indicates how null values compare against all other values.
Definition: types.hpp:143
null_policy
Enum to specify whether to include nulls or exclude nulls.
Definition: types.hpp:110
order
Indicates the order in which elements should be sorted.
Definition: types.hpp:102
cuDF interfaces
Definition: aggregation.hpp:34
rmm::cuda_stream_view const get_default_stream()
Get the current default stream.
Type declarations for libcudf.