379 lines
16 KiB
C++
379 lines
16 KiB
C++
// Copyright (c) 2025 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/index_elementwise_put_kernel.h"
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#include "paddle/phi/backends/xpu/xpu_context.h"
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#include "paddle/phi/core/kernel_registry.h"
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#include "paddle/phi/kernels/funcs/index_elementwise.h"
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#include "paddle/phi/kernels/funcs/index_put_utils.h"
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#include "paddle/phi/kernels/funcs/stride_utils.h"
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#include "paddle/phi/kernels/reduce_sum_kernel.h"
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namespace phi {
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template <typename T, typename Context, typename IndexT = int>
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void XPUIndexElementwisePutGradKernel(
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const Context& dev_ctx,
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const DenseTensor& out_grad,
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const std::vector<const DenseTensor*>& index,
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const std::vector<int64_t>& input_dims,
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const std::vector<int64_t>& input_strides,
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const std::vector<int64_t>& index_dims,
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const std::vector<int64_t>& index_strides,
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const int64_t slice_offset,
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DenseTensor* x_grad,
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DenseTensor* value_grad) {
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int64_t numel = 0;
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int64_t num_indices = 0;
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std::vector<int64_t> shape_tmp;
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std::vector<int64_t> stride_tmp;
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funcs::cal_shape_stride(index_dims, &num_indices, &shape_tmp, &stride_tmp);
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auto sizes = std::array<int64_t, phi::DDim::kMaxRank + 1>{};
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auto strides = std::array<int64_t, phi::DDim::kMaxRank + 1>{};
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for (int64_t i = 0; i < num_indices; i++) {
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sizes[i] = index_dims[i];
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strides[i] = index_strides[i];
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}
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std::array<int64_t*, 3> strides_array;
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std::vector<int64_t> desired_shape;
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std::array<std::vector<int64_t>, 3> strides_vec;
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std::vector<int64_t> value_dims;
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std::vector<int64_t> value_strides;
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// default value_ele_size when value_grad is nullptr
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int64_t value_ele_size = 4;
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if (value_grad) {
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value_dims = vectorize<int64_t>(value_grad->dims());
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value_strides = vectorize<int64_t>(value_grad->strides());
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value_ele_size = phi::SizeOf(value_grad->dtype());
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}
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funcs::IndexPutStride<3>(input_dims,
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input_strides,
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phi::SizeOf(out_grad.dtype()),
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value_dims,
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value_strides,
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value_ele_size,
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shape_tmp,
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stride_tmp,
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phi::SizeOf(index[0]->dtype()),
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&desired_shape,
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&strides_array,
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&numel,
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strides_vec);
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if (value_grad != nullptr) {
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const int64_t N = value_grad->numel();
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PADDLE_ENFORCE_EQ(true,
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(N >= 0 && N <= std::numeric_limits<int32_t>::max()),
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common::errors::PreconditionNotMet(
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"the numel of input or output should be in [0, "
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"std::numeric_limits<int32_t>::max()]"));
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}
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using XPUType = typename XPUTypeTrait<T>::Type;
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using XPUTypeIndexT = typename XPUTypeTrait<IndexT>::Type;
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// passed vector params for XPU
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std::vector<const XPUTypeIndexT*> index_ptrs_vec;
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std::vector<int64_t> index_numel_vec;
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for (int i = 0; i < num_indices; i++) {
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// since XPU WRAPPER_CHECK_PTR only supports original GM ptrs, so we pass
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// the IndexT* type ptrs, which is different from the CPU/GPU's char* ptr.
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index_ptrs_vec.push_back(
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reinterpret_cast<const XPUTypeIndexT*>(index[i]->data<IndexT>()));
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// index_numel_vec is for the length of WRAPPER_CHECK_PTR
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index_numel_vec.push_back(index[i]->numel());
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}
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std::vector<int64_t> sizes_vec =
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std::vector<int64_t>(sizes.begin(), sizes.begin() + num_indices);
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std::vector<int64_t> orig_strides_vec =
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std::vector<int64_t>(strides.begin(), strides.begin() + num_indices);
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std::vector<std::vector<int64_t>> strides_vec_vec =
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std::vector<std::vector<int64_t>>(strides_vec.begin(), strides_vec.end());
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const XPUType* out_grad_ptr =
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reinterpret_cast<const XPUType*>(out_grad.data<T>());
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XPUType* x_grad_ptr = x_grad == nullptr
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? nullptr
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: reinterpret_cast<XPUType*>(x_grad->data<T>());
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XPUType* value_grad_ptr =
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value_grad == nullptr ? nullptr
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: reinterpret_cast<XPUType*>(value_grad->data<T>());
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int r = xpu::index_elementwise_put_grad<XPUType, XPUTypeIndexT>(
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dev_ctx.x_context(), // ctx
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out_grad_ptr, // out_grad
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input_dims, // input_shape
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index_ptrs_vec, // index_list
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index_numel_vec, // index_numel
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desired_shape, // desired_shape
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sizes_vec, // sizes
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orig_strides_vec, // orig_strides
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strides_vec_vec, // strides_vec
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slice_offset, // slice_offset
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numel, // numel
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x_grad_ptr, // x_grad
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value_grad_ptr // value_grad
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);
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PADDLE_ENFORCE_XDNN_SUCCESS(r, "index_elementwise_put_grad");
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}
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template <typename T, typename Context>
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void LaunchIndexElementwisePutWithTensorGradXPUKernel(
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const Context& dev_ctx,
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const std::vector<const DenseTensor*>& indices,
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const DenseTensor& out_grad,
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const std::vector<int64_t>& input_dims,
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const std::vector<int64_t>& input_strides,
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const std::vector<int64_t>& index_dims,
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const std::vector<int64_t>& index_strides,
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const int64_t slice_offset,
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DenseTensor* value_grad,
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DenseTensor* x_grad) {
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if (x_grad && !value_grad) {
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Copy(dev_ctx, out_grad, dev_ctx.GetPlace(), false, x_grad);
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XPUIndexElementwisePutGradKernel<T, Context, int64_t>(dev_ctx,
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out_grad,
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indices,
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input_dims,
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input_strides,
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index_dims,
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index_strides,
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slice_offset,
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x_grad,
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value_grad);
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} else if (value_grad) {
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if (x_grad) {
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Copy(dev_ctx, out_grad, dev_ctx.GetPlace(), false, x_grad);
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}
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if (value_grad->numel() == 1) {
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DenseTensor tmp_value_grad(value_grad->dtype());
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tmp_value_grad.Resize(input_dims);
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dev_ctx.template Alloc<T>(&tmp_value_grad);
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XPUIndexElementwisePutGradKernel<T, Context, int64_t>(dev_ctx,
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out_grad,
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indices,
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input_dims,
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input_strides,
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index_dims,
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index_strides,
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slice_offset,
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x_grad,
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&tmp_value_grad);
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std::vector<int> v_dims(tmp_value_grad.dims().size());
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std::iota(v_dims.begin(), v_dims.end(), 0);
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IntArray v_axis(v_dims);
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SumKernel<T, Context>(dev_ctx,
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tmp_value_grad,
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v_axis,
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value_grad->dtype(),
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false,
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value_grad);
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} else if (value_grad->dims() == make_ddim(input_dims)) {
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dev_ctx.template Alloc<T>(value_grad);
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XPUIndexElementwisePutGradKernel<T, Context, int64_t>(dev_ctx,
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out_grad,
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indices,
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input_dims,
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input_strides,
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index_dims,
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index_strides,
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slice_offset,
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x_grad,
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value_grad);
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} else {
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DenseTensor tmp_value_grad(value_grad->dtype());
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tmp_value_grad.Resize(input_dims);
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dev_ctx.template Alloc<T>(&tmp_value_grad);
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XPUIndexElementwisePutGradKernel<T, Context, int64_t>(dev_ctx,
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out_grad,
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indices,
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input_dims,
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input_strides,
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index_dims,
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index_strides,
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slice_offset,
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x_grad,
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&tmp_value_grad);
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std::vector<int64_t> after_dims = vectorize(tmp_value_grad.dims());
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std::vector<int64_t> before_dims = vectorize(value_grad->dims());
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std::vector<int64_t> compress_dims;
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std::vector<int64_t> dims_without_1;
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funcs::CalCompressedDimsWith1AndWithout1(
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&after_dims, &before_dims, &compress_dims, &dims_without_1);
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auto pre_dims = value_grad->dims();
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value_grad->Resize(dims_without_1);
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IntArray v_axis(compress_dims);
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SumKernel<T, Context>(dev_ctx,
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tmp_value_grad,
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v_axis,
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value_grad->dtype(),
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false,
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value_grad);
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value_grad->Resize(pre_dims);
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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 LaunchIndexElementwisePutGradXPUKernel(
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const Context& dev_ctx,
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const std::vector<const DenseTensor*>& indices,
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const DenseTensor& out_grad,
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const std::vector<int64_t>& input_dims,
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const std::vector<int64_t>& input_strides,
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const std::vector<int64_t>& index_dims,
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const std::vector<int64_t>& index_strides,
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const int64_t slice_offset,
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DenseTensor* x_grad) {
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if (x_grad) {
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Copy(dev_ctx, out_grad, dev_ctx.GetPlace(), false, x_grad);
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XPUIndexElementwisePutGradKernel<T, Context, int64_t>(dev_ctx,
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out_grad,
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indices,
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input_dims,
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input_strides,
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index_dims,
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index_strides,
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slice_offset,
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x_grad,
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nullptr);
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}
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}
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template <typename T, typename Context>
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void IndexElementwisePutGradKernel(
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const Context& dev_ctx,
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const DenseTensor& x,
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const std::vector<const DenseTensor*>& indices,
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const DenseTensor& out_grad,
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const std::vector<int64_t>& input_dims,
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const std::vector<int64_t>& input_strides,
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const std::vector<int64_t>& index_dims,
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const std::vector<int64_t>& index_strides,
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const int64_t slice_offset,
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DenseTensor* x_grad) {
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const auto& index_type = indices[0]->dtype();
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PADDLE_ENFORCE_EQ(index_type == DataType::INT64 ||
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(index_type == DataType::BOOL && indices.size() == 1),
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true,
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common::errors::InvalidArgument(
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"Index holds the wrong type, it holds [%s], but "
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"desires to be [%s].",
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index_type,
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DataType::INT64));
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std::vector<DenseTensor> tmp_args;
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if (indices.empty()) {
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if (x_grad) {
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Copy(dev_ctx, out_grad, dev_ctx.GetPlace(), false, x_grad);
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}
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return;
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}
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LaunchIndexElementwisePutGradXPUKernel<T, Context>(dev_ctx,
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indices,
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out_grad,
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input_dims,
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input_strides,
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index_dims,
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index_strides,
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slice_offset,
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x_grad);
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}
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template <typename T, typename Context>
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void IndexElementwisePutWithTensorGradKernel(
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const Context& dev_ctx,
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const DenseTensor& x,
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const std::vector<const DenseTensor*>& indices,
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const DenseTensor& value,
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const DenseTensor& out_grad,
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const std::vector<int64_t>& input_dims,
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const std::vector<int64_t>& input_strides,
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const std::vector<int64_t>& index_dims,
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const std::vector<int64_t>& index_strides,
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const int64_t slice_offset,
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DenseTensor* x_grad,
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DenseTensor* value_grad) {
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const auto& index_type = indices[0]->dtype();
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PADDLE_ENFORCE_EQ(index_type == DataType::INT64,
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true,
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common::errors::InvalidArgument(
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"Index holds the wrong type, it holds [%s], but "
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"desires to be [%s].",
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index_type,
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DataType::INT64));
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std::vector<DenseTensor> tmp_args;
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if (indices.empty()) {
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if (x_grad) {
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Copy(dev_ctx, out_grad, dev_ctx.GetPlace(), false, x_grad);
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}
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if (value_grad) {
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Full<T, Context>(dev_ctx, value_grad->dims(), 0.0f, value_grad);
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}
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return;
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}
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LaunchIndexElementwisePutWithTensorGradXPUKernel<T, Context>(dev_ctx,
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indices,
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out_grad,
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input_dims,
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input_strides,
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index_dims,
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index_strides,
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slice_offset,
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value_grad,
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x_grad);
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}
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} // namespace phi
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PD_REGISTER_KERNEL(index_elementwise_put_grad,
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XPU,
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ALL_LAYOUT,
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phi::IndexElementwisePutGradKernel,
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bool,
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float,
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double,
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int,
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int8_t,
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int64_t,
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int16_t,
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uint8_t,
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phi::float16,
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phi::bfloat16) {}
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PD_REGISTER_KERNEL(index_elementwise_put_with_tensor_grad,
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XPU,
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ALL_LAYOUT,
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phi::IndexElementwisePutWithTensorGradKernel,
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bool,
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float,
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int,
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int8_t,
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int64_t,
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phi::float16,
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phi::bfloat16) {}
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