wehub-resource-sync
47 lines
1.7 KiB
C++
47 lines
1.7 KiB
C++
// Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <iostream>
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#include <vector>
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#include "paddle/extension.h"
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#define CHECK_INPUT(x) PD_CHECK(x.is_cpu(), #x " must be a CPU Tensor.")
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std::vector<paddle::Tensor> SimpleSliceFunction(const paddle::Tensor& x,
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int64_t begin_index,
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int64_t end_index) {
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return {x.slice(begin_index, end_index)};
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}
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std::vector<std::vector<int64_t>> SimpleSliceInferShape(
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const std::vector<int64_t>& x_shape,
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int64_t begin_index,
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int64_t end_index) {
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PD_CHECK(begin_index > 0, "The begin index is out of bound.");
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PD_CHECK(end_index > 0, "The end index must is out of bound.");
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PD_CHECK(begin_index < end_index,
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"The begin index is greater than end index.");
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auto out_shape = x_shape;
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out_shape[0] = end_index - begin_index;
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return {out_shape};
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}
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PD_BUILD_OP(custom_simple_slice)
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.Inputs({"X"})
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.Outputs({"Out"})
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.Attrs({"begin_index: int64_t", "end_index: int64_t"})
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.SetKernelFn(PD_KERNEL(SimpleSliceFunction))
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.SetInferShapeFn(PD_INFER_SHAPE(SimpleSliceInferShape));
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