wehub-resource-sync
108 lines
3.5 KiB
C++
108 lines
3.5 KiB
C++
// Copyright (c) 2022 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 "paddle/phi/kernels/one_hot_kernel.h"
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#include "paddle/phi/core/kernel_registry.h"
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#include "paddle/phi/core/utils/data_type.h"
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#include "paddle/phi/kernels/funcs/math_function.h"
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namespace phi {
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template <typename Context, typename InT>
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struct OneHotV2OpFunctor {
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const DenseTensor* in_;
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DenseTensor* out_;
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int depth_;
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const Context& dev_ctx_;
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OneHotV2OpFunctor(const DenseTensor* in,
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DenseTensor* out,
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int depth,
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const Context& dev_ctx)
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: in_(in), out_(out), depth_(depth), dev_ctx_(dev_ctx) {}
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template <typename OutT>
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void apply() const {
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auto* p_in_data = in_->data<InT>();
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auto numel = in_->numel();
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auto* p_out_data = dev_ctx_.template Alloc<OutT>(out_);
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funcs::set_constant(dev_ctx_, out_, static_cast<OutT>(0.0));
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for (int i = 0; i < numel; ++i) {
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PADDLE_ENFORCE_GE(
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p_in_data[i],
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0,
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common::errors::InvalidArgument(
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"Illegal index value, Input(input) value should be at least 0, "
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"but received input (%d) less than 0",
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p_in_data[i]));
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PADDLE_ENFORCE_LT(
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p_in_data[i],
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depth_,
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common::errors::InvalidArgument(
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"Illegal index value, Input(input) value should be less than "
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"Input(depth), "
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"but received input (%d) not less than depth (%d)",
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p_in_data[i],
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depth_));
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*(p_out_data + i * depth_ + p_in_data[i]) = 1.0;
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}
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}
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};
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template <typename T, typename Context>
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void OneHotKernel(const Context& dev_ctx,
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const DenseTensor& x,
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const Scalar& depth,
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DenseTensor* out) {
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auto depth_v = depth.to<int>();
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auto out_dims = out->dims();
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if (out_dims[out_dims.size() - 1] == -1) {
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out_dims[out_dims.size() - 1] = depth_v;
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out->Resize(out_dims);
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}
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auto* p_in_data = x.data<T>();
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auto numel = x.numel();
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auto* p_out_data = dev_ctx.template Alloc<float>(out);
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funcs::set_constant(dev_ctx, out, 0.0f);
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for (int i = 0; i < numel; ++i) {
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PADDLE_ENFORCE_GE(
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p_in_data[i],
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0,
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common::errors::InvalidArgument(
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"Illegal index value, Input(input) value should be at least 0, "
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"but received input (%d) less than 0",
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p_in_data[i]));
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PADDLE_ENFORCE_LT(
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p_in_data[i],
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depth_v,
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common::errors::InvalidArgument(
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"Illegal index value, Input(input) value should be less than "
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"Input(depth), "
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"but received input (%d) not less than depth (%d)",
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p_in_data[i],
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depth_v));
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*(p_out_data + i * depth_v + p_in_data[i]) = 1.0;
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}
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}
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} // namespace phi
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PD_REGISTER_KERNEL(one_hot, CPU, ALL_LAYOUT, phi::OneHotKernel, int, int64_t) {
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kernel->OutputAt(0).SetDataType(phi::DataType::FLOAT32);
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}
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