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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| /* | ||
| * Copyright (c) 2021, NVIDIA CORPORATION. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| #include <cudf/column/column.hpp> | ||
| #include <cudf/detail/aggregation/aggregation.hpp> | ||
| #include <cudf/detail/copy.hpp> | ||
| #include <cudf/detail/nvtx/ranges.hpp> | ||
| #include <cudf/detail/quantiles.hpp> | ||
| #include <cudf/detail/reduction_functions.hpp> | ||
| #include <cudf/detail/sorting.hpp> | ||
| #include <cudf/detail/stream_compaction.hpp> | ||
| #include <cudf/reduction.hpp> | ||
| #include <cudf/scalar/scalar_factories.hpp> | ||
|
|
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| #include <cudf/structs/structs_column_view.hpp> | ||
| #include <rmm/cuda_stream_view.hpp> | ||
|
|
||
| namespace cudf { | ||
| namespace detail { | ||
| struct segmented_reduce_dispatch_functor { | ||
| column_view const col; | ||
| column_view const offsets; | ||
| data_type output_dtype; | ||
| rmm::mr::device_memory_resource* mr; | ||
| rmm::cuda_stream_view stream; | ||
|
|
||
| segmented_reduce_dispatch_functor(column_view const& col, | ||
| column_view const& offsets, | ||
| data_type output_dtype, | ||
| rmm::cuda_stream_view stream, | ||
| rmm::mr::device_memory_resource* mr) | ||
| : col(col), offsets(offsets), output_dtype(output_dtype), mr(mr), stream(stream) | ||
| { | ||
| } | ||
|
|
||
| template <aggregation::Kind k> | ||
| std::unique_ptr<column> operator()(std::unique_ptr<aggregation> const& agg) | ||
| { | ||
| switch (k) { | ||
| case aggregation::SUM: | ||
| return reduction::segmented_sum(col, offsets, output_dtype, stream, mr); | ||
| break; | ||
| // case aggregation::PRODUCT: return reduction::product(col, output_dtype, stream, mr); break; | ||
| // case aggregation::MIN: return reduction::min(col, output_dtype, stream, mr); break; | ||
| // case aggregation::MAX: return reduction::max(col, output_dtype, stream, mr); break; | ||
| // case aggregation::ANY: return reduction::any(col, output_dtype, stream, mr); break; | ||
| // case aggregation::ALL: return reduction::all(col, output_dtype, stream, mr); break; | ||
| default: CUDF_FAIL("Unsupported aggregation type."); | ||
| } | ||
| } | ||
| }; | ||
|
|
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| std::unique_ptr<column> segmented_reduce( | ||
| column_view const& col, | ||
| column_view const& offsets, | ||
| std::unique_ptr<aggregation> const& agg, | ||
| data_type output_dtype, | ||
| rmm::cuda_stream_view stream = rmm::cuda_stream_default, | ||
| rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource()) | ||
| { | ||
| // TODO: handle invalid inputs. | ||
|
|
||
| return aggregation_dispatcher( | ||
| agg->kind, segmented_reduce_dispatch_functor{col, offsets, output_dtype, stream, mr}, agg); | ||
| } | ||
| } // namespace detail | ||
|
|
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| std::unique_ptr<column> segmented_reduce(column_view const& col, | ||
| column_view const& offsets, | ||
| std::unique_ptr<aggregation> const& agg, | ||
| data_type output_dtype, | ||
| rmm::mr::device_memory_resource* mr) | ||
| { | ||
| CUDF_FUNC_RANGE(); | ||
| return detail::segmented_reduce(col, offsets, agg, output_dtype, rmm::cuda_stream_default, mr); | ||
| } | ||
|
|
||
| } // namespace cudf |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| /* | ||
| * Copyright (c) 2019-2021, NVIDIA CORPORATION. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| #include <cudf/detail/reduction_functions.hpp> | ||
| #include <cudf/dictionary/dictionary_column_view.hpp> | ||
| #include <reductions/simple_segmented.cuh> | ||
|
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| #include <rmm/cuda_stream_view.hpp> | ||
|
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| namespace cudf { | ||
| namespace reduction { | ||
|
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| std::unique_ptr<cudf::column> segmented_sum(column_view const& col, | ||
| column_view const& offsets, | ||
| cudf::data_type const output_dtype, | ||
| rmm::cuda_stream_view stream, | ||
| rmm::mr::device_memory_resource* mr) | ||
| { | ||
| return cudf::type_dispatcher(col.type(), | ||
| simple::column_type_dispatcher<cudf::reduction::op::sum>{}, | ||
| col, | ||
| offsets, | ||
| output_dtype, | ||
| stream, | ||
| mr); | ||
| } | ||
|
|
||
| } // namespace reduction | ||
| } // namespace cudf |
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