wehub-resource-sync
63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
// Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
|
|
//
|
|
// 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.
|
|
|
|
#pragma once
|
|
#include <vector>
|
|
|
|
#include "paddle/phi/kernels/empty_kernel.h"
|
|
#include "paddle/phi/kernels/flatten_grad_kernel.h"
|
|
#include "paddle/phi/kernels/flatten_kernel.h"
|
|
#include "paddle/phi/kernels/funcs/blas/blas.h"
|
|
#include "paddle/phi/kernels/funcs/flatten2_utils.h"
|
|
#include "paddle/phi/kernels/funcs/math_function.h"
|
|
|
|
namespace phi {
|
|
|
|
template <typename T, typename Context>
|
|
void Flatten2Kernel(const Context &dev_ctx,
|
|
const DenseTensor &x,
|
|
int axis,
|
|
DenseTensor *out,
|
|
DenseTensor *x_shape) {
|
|
auto &axes = axis;
|
|
|
|
auto *in = &x;
|
|
auto x_dims = in->dims();
|
|
|
|
auto out_dims = make_ddim(funcs::GetOutputShape(axes, x_dims));
|
|
|
|
dev_ctx.Alloc(out, x.dtype());
|
|
Copy(dev_ctx, *in, dev_ctx.GetPlace(), false, out);
|
|
out->Resize(out_dims);
|
|
}
|
|
|
|
template <typename T, typename Context>
|
|
void Flatten2GradKernel(const Context &dev_ctx,
|
|
const DenseTensor &x,
|
|
const DenseTensor &x_shape,
|
|
const DenseTensor &out_grad,
|
|
int axis,
|
|
DenseTensor *x_grad) {
|
|
auto *d_x = x_grad;
|
|
auto *d_out = &out_grad;
|
|
|
|
auto xshape_dims = x_shape.dims();
|
|
auto x_dims = slice_ddim(xshape_dims, 1, xshape_dims.size());
|
|
|
|
dev_ctx.Alloc(x_grad, out_grad.dtype());
|
|
Copy(dev_ctx, *d_out, dev_ctx.GetPlace(), false, d_x);
|
|
d_x->Resize(x_dims);
|
|
}
|
|
} // namespace phi
|