wehub-resource-sync
61 lines
2.4 KiB
C++
61 lines
2.4 KiB
C++
// Copyright (c) 2022 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.
|
|
|
|
#include "paddle/phi/kernels/warpctc_grad_kernel.h"
|
|
|
|
#include "paddle/phi/backends/xpu/enforce_xpu.h"
|
|
#include "paddle/phi/backends/xpu/xpu_context.h"
|
|
#include "paddle/phi/core/kernel_registry.h"
|
|
|
|
namespace phi {
|
|
|
|
template <typename T, typename Context>
|
|
void WarpctcGradKernel(const Context& dev_ctx,
|
|
const DenseTensor& logits,
|
|
const optional<DenseTensor>& logits_length,
|
|
const DenseTensor& warpctcgrad,
|
|
const DenseTensor& loss_grad,
|
|
int blank,
|
|
bool norm_by_times,
|
|
DenseTensor* logits_grad) {
|
|
dev_ctx.template Alloc<T>(logits_grad);
|
|
|
|
bool has_logits_length = logits_length.is_initialized();
|
|
if (!has_logits_length) {
|
|
PADDLE_THROW(common::errors::External(
|
|
"XPU only support logits_length is_initialized"));
|
|
}
|
|
|
|
int64_t max_seq_length = warpctcgrad.dims()[0]; // Tmax
|
|
int64_t num_sequences = warpctcgrad.dims()[1]; // B
|
|
int64_t seq_width = warpctcgrad.dims()[2]; // D
|
|
auto* logits_length_ptr = logits_length.get_ptr();
|
|
|
|
int r = xpu::ctc_loss_grad<T, int64_t>(dev_ctx.x_context(),
|
|
loss_grad.data<T>(),
|
|
logits_grad->data<T>(),
|
|
warpctcgrad.data<T>(),
|
|
max_seq_length,
|
|
num_sequences,
|
|
seq_width,
|
|
logits_length_ptr->data<int64_t>(),
|
|
norm_by_times);
|
|
PADDLE_ENFORCE_XDNN_SUCCESS(r, "ctc_loss_grad");
|
|
}
|
|
|
|
} // namespace phi
|
|
|
|
PD_REGISTER_KERNEL(
|
|
warpctc_grad, XPU, ALL_LAYOUT, phi::WarpctcGradKernel, float) {}
|