lists/filling.hpp
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1 /*
2  * Copyright (c) 2021-2024, NVIDIA CORPORATION.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * https://apache.ac.cn/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #pragma once
18 
19 #include <cudf/types.hpp>
22 
23 #include <rmm/cuda_stream_view.hpp>
24 
25 #include <memory>
26 
27 namespace CUDF_EXPORT cudf {
28 namespace lists {
67 std::unique_ptr<column> sequences(
68  column_view const& starts,
69  column_view const& sizes,
72 
108 std::unique_ptr<column> sequences(
109  column_view const& starts,
110  column_view const& steps,
111  column_view const& sizes,
114  // end of group
116 } // namespace lists
117 } // namespace CUDF_EXPORT cudf
设备数据的非拥有、不可变视图,表示为元素的列,其中一些可能为空,如指示... (A non-owning, immutable view of device data as a column of elements, some of which may be null as ind...)
rmm::cuda_stream_view const get_default_stream()
获取当前的默认流。(Get the current default stream.)
std::unique_ptr< column > sequences(column_view const &starts, column_view const &steps, column_view const &sizes, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
创建一个列表列,其中每一行包含由 (start,...) 元组指定的一系列值。(Create a lists column in which each row contains a sequence of values specified by a tuple of (start,...)
rmm::device_async_resource_ref get_current_device_resource_ref()
获取当前的设备内存资源引用。(Get the current device memory resource reference.)
cuda::mr::async_resource_ref< cuda::mr::device_accessible > device_async_resource_ref
cuDF 接口
定义: host_udf.hpp:37
libcudf 的类型声明。(Type declarations for libcudf.)