343 lines
13 KiB
Plaintext
343 lines
13 KiB
Plaintext
// 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/selected_rows/adam_kernel.h"
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#include "glog/logging.h"
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#include "paddle/phi/backends/gpu/gpu_context.h"
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#include "paddle/phi/common/amp_type_traits.h"
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#include "paddle/phi/core/kernel_registry.h"
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#include "paddle/phi/core/tensor_utils.h"
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#include "paddle/phi/kernels/funcs/adam_functors.h"
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#include "paddle/phi/kernels/funcs/for_range.h"
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#include "paddle/phi/kernels/funcs/selected_rows_functor.h"
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namespace phi {
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namespace sr {
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template <typename T>
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__global__ void UpdateBetaPow(T beta1,
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T beta2,
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const T* beta1_pow_,
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const T* beta2_pow_,
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T* beta1_pow_out,
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T* beta2_pow_out) {
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*beta1_pow_out = beta1 * beta1_pow_[0];
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*beta2_pow_out = beta2 * beta2_pow_[0];
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}
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template <typename T, typename MT>
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__global__ void SparseAdamCUDAKernelREG(MT beta1,
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MT beta2,
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MT epsilon,
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const MT beta1_pow,
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const MT beta2_pow,
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const MT* mom1_,
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MT* mom1_out_,
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const MT* mom2_,
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MT* mom2_out_,
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const MT* mom2_max_,
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MT* mom2_max_out_,
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const double* lr_,
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const T* grad_,
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const T* param_,
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T* param_out_,
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const MT* master_param,
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MT* master_param_out,
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const int64_t* rows_,
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int64_t row_numel,
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int64_t row_count,
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bool lazy_mode,
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int ndim,
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bool amsgrad) {
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int64_t id =
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static_cast<int64_t>(blockIdx.x) * static_cast<int64_t>(blockDim.x) +
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static_cast<int64_t>(threadIdx.x);
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MT lr = static_cast<MT>(*lr_);
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for (; id < ndim; id += blockDim.x * gridDim.x) {
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auto row_idx =
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funcs::BinarySearch<int64_t>(rows_, row_count, id / row_numel);
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if (lazy_mode && row_idx < 0) {
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return;
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} else {
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MT mom1 = mom1_[id];
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MT mom2 = mom2_[id];
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MT p = master_param ? master_param[id] : static_cast<MT>(param_[id]);
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MT g = row_idx >= 0
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? static_cast<MT>(grad_[row_idx * row_numel + id % row_numel])
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: static_cast<MT>(0);
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mom1 = beta1 * mom1 + (static_cast<MT>(1.0) - beta1) * g;
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mom2 = beta2 * mom2 + (static_cast<MT>(1.0) - beta2) * g * g;
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MT denom;
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if (amsgrad) {
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MT mom2_max = mom2_max_[id];
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MT moment2_max_ = std::max(mom2, mom2_max);
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mom2_max_out_[id] = moment2_max_;
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denom = (sqrt(moment2_max_) / sqrt(static_cast<MT>(1.0) - beta2_pow)) +
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epsilon;
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} else {
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denom = (sqrt(mom2) / sqrt(static_cast<MT>(1.0) - beta2_pow)) + epsilon;
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}
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p += (mom1 / denom) * (-(lr / (static_cast<MT>(1.0) - beta1_pow)));
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// Write back to global memory
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mom1_out_[id] = mom1;
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mom2_out_[id] = mom2;
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param_out_[id] = static_cast<T>(p);
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if (master_param_out) {
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master_param_out[id] = p;
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}
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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 AdamDenseParamSparseGradKernel(const Context& dev_ctx,
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const DenseTensor& param,
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const SelectedRows& grad,
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const DenseTensor& learning_rate,
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const DenseTensor& moment1,
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const DenseTensor& moment2,
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const optional<DenseTensor>& moment2_max,
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const DenseTensor& beta1_pow,
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const DenseTensor& beta2_pow,
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const optional<DenseTensor>& master_param,
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const optional<DenseTensor>& skip_update,
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const Scalar& beta1,
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const Scalar& beta2,
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const Scalar& epsilon,
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bool lazy_mode,
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int64_t min_row_size_to_use_multithread,
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bool multi_precision,
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bool use_global_beta_pow,
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bool amsgrad,
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DenseTensor* param_out,
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DenseTensor* moment1_out,
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DenseTensor* moment2_out,
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DenseTensor* moment2_max_out,
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DenseTensor* beta1_pow_out,
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DenseTensor* beta2_pow_out,
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DenseTensor* master_param_outs) {
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using MT = typename phi::dtype::MPTypeTrait<T>::Type;
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VLOG(4) << "use_global_beta_pow:" << use_global_beta_pow;
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bool skip_update_ = false;
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if (skip_update.is_initialized()) {
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PADDLE_ENFORCE_EQ(
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skip_update->numel(),
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1,
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errors::InvalidArgument("Input(SkipUpdate) size must be 1, but get %d",
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skip_update->numel()));
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std::vector<bool> skip_update_vec;
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TensorToVector(*skip_update, dev_ctx, &skip_update_vec);
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skip_update_ = skip_update_vec[0];
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}
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// skip_update=true, just copy input to output, and TensorCopy will call
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// mutable_data
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if (skip_update_) {
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VLOG(4) << "Adam skip update";
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phi::Copy(dev_ctx, param, dev_ctx.GetPlace(), false, param_out);
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phi::Copy(dev_ctx, moment1, dev_ctx.GetPlace(), false, moment1_out);
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phi::Copy(dev_ctx, moment2, dev_ctx.GetPlace(), false, moment2_out);
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if (amsgrad) {
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phi::Copy(dev_ctx,
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moment2_max.get(),
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dev_ctx.GetPlace(),
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false,
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moment2_max_out);
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}
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if (!use_global_beta_pow) {
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phi::Copy(dev_ctx, beta1_pow, beta1_pow.place(), false, beta1_pow_out);
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phi::Copy(dev_ctx, beta2_pow, beta2_pow.place(), false, beta2_pow_out);
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}
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return;
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}
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MT beta1_ = beta1.to<MT>();
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MT beta2_ = beta2.to<MT>();
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MT epsilon_ = epsilon.to<MT>();
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VLOG(3) << "beta1_pow.numel() : " << beta1_pow.numel()
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<< "beta2_pow.numel() : " << beta2_pow.numel();
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VLOG(3) << "param.numel(): " << param.numel();
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PADDLE_ENFORCE_EQ(
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beta1_pow_out->numel(),
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1,
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errors::InvalidArgument("beta1 pow output size should be 1, but received "
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"value is:%d.",
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beta1_pow_out->numel()));
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PADDLE_ENFORCE_EQ(
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beta2_pow_out->numel(),
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1,
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errors::InvalidArgument("beta2 pow output size should be 1, but received "
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"value is:%d.",
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beta2_pow_out->numel()));
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const MT* master_in_data =
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multi_precision ? master_param->data<MT>() : nullptr;
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MT* master_out_data =
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multi_precision ? dev_ctx.template Alloc<MT>(master_param_outs) : nullptr;
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const MT* moment2_max_in_data =
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amsgrad ? moment2_max.get().data<MT>() : nullptr;
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MT* moment2_max_out_data =
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amsgrad ? dev_ctx.template Alloc<MT>(moment2_max_out) : nullptr;
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if (grad.rows().size() == 0) {
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VLOG(3) << "grad row size is 0!!";
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return;
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}
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std::vector<int64_t> cpu_rows(grad.rows().begin(), grad.rows().end());
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bool is_strict_sorted = true;
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for (size_t i = 1; i < cpu_rows.size(); ++i) {
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if (cpu_rows[i - 1] >= cpu_rows[i]) {
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is_strict_sorted = false;
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break;
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}
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}
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SelectedRows tmp_grad_merge;
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const SelectedRows* grad_merge_ptr;
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if (is_strict_sorted) {
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grad_merge_ptr = &grad;
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} else {
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// merge duplicated rows if any.
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// The rows of grad_merge have been sorted inside MergeAdd functor
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funcs::scatter::MergeAdd<Context, T> merge_func;
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merge_func(dev_ctx, grad, &tmp_grad_merge, true);
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grad_merge_ptr = &tmp_grad_merge;
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}
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auto& grad_merge = *grad_merge_ptr;
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auto& grad_tensor = grad_merge.value();
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const T* grad_data = grad_tensor.template data<T>();
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auto* grad_merge_rows = &grad_merge.rows();
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phi::MixVector<int64_t> mixv_grad_merge_rows(grad_merge_rows);
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const int64_t* rows = mixv_grad_merge_rows.Data(dev_ctx.GetPlace());
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auto row_numel = grad_tensor.numel() / grad_merge.rows().size();
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if (beta1_pow.place() == CPUPlace() && beta2_pow.place() == CPUPlace()) {
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int threads = 512;
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int64_t ndim = param.numel();
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int64_t blocks = (ndim + threads - 1) / threads;
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// NOTE(large-tensor): Kernel launch requires int type for grid dimension
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PADDLE_ENFORCE_LE_INT_MAX(blocks, "blocks");
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SparseAdamCUDAKernelREG<T, MT>
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<<<static_cast<int>(blocks), threads, 0, dev_ctx.stream()>>>(
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beta1_,
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beta2_,
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epsilon_,
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*beta1_pow.data<MT>(),
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*beta2_pow.data<MT>(),
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moment1.data<MT>(),
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dev_ctx.template Alloc<MT>(moment1_out),
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moment2.data<MT>(),
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dev_ctx.template Alloc<MT>(moment2_out),
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moment2_max_in_data,
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moment2_max_out_data,
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learning_rate.data<double>(),
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grad_data,
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param.data<T>(),
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dev_ctx.template Alloc<T>(param_out),
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master_in_data,
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master_out_data,
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rows,
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row_numel,
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grad_merge.rows().size(),
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lazy_mode,
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ndim,
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amsgrad);
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if (!use_global_beta_pow) {
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// Update with cpu
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dev_ctx.template HostAlloc<MT>(beta1_pow_out)[0] =
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beta1_ * beta1_pow.data<MT>()[0];
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dev_ctx.template HostAlloc<MT>(beta2_pow_out)[0] =
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beta2_ * beta2_pow.data<MT>()[0];
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}
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} else {
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funcs::SparseAdamFunctor<T, funcs::GPUAdam, MT> functor(
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beta1_,
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beta2_,
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epsilon_,
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beta1_pow.data<MT>(),
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beta2_pow.data<MT>(),
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moment1.data<MT>(),
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dev_ctx.template Alloc<MT>(moment1_out),
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moment2.data<MT>(),
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dev_ctx.template Alloc<MT>(moment2_out),
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moment2_max_in_data,
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moment2_max_out_data,
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learning_rate.data<double>(),
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grad_data,
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param.data<T>(),
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dev_ctx.template Alloc<T>(param_out),
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master_in_data,
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master_out_data,
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rows,
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row_numel,
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grad_merge.rows().size(),
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lazy_mode,
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amsgrad);
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// FIXME(minqiyang): remove BinarySearch in GPU later
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funcs::ForRange<Context> for_range(dev_ctx, param.numel());
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for_range(functor);
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if (!use_global_beta_pow) {
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// update beta1 and beta2
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UpdateBetaPow<MT><<<1, 32, 0, dev_ctx.stream()>>>(
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beta1_,
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beta2_,
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beta1_pow.data<MT>(),
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beta2_pow.data<MT>(),
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dev_ctx.template Alloc<MT>(beta1_pow_out),
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dev_ctx.template Alloc<MT>(beta2_pow_out));
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}
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}
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}
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} // namespace sr
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} // namespace phi
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PD_REGISTER_KERNEL(adam_dense_param_sparse_grad,
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GPU,
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ALL_LAYOUT,
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phi::sr::AdamDenseParamSparseGradKernel,
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float,
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double,
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phi::float16) {
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// Skip beta1_pow, beta2_pow, skip_update data transform
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kernel->InputAt(6).SetBackend(phi::Backend::ALL_BACKEND);
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kernel->InputAt(7).SetBackend(phi::Backend::ALL_BACKEND);
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kernel->InputAt(9).SetBackend(phi::Backend::ALL_BACKEND);
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if (kernel_key.dtype() == phi::DataType::FLOAT16) {
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kernel->OutputAt(1).SetDataType(phi::DataType::FLOAT32);
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kernel->OutputAt(2).SetDataType(phi::DataType::FLOAT32);
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kernel->OutputAt(3).SetDataType(phi::DataType::FLOAT32);
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kernel->OutputAt(4).SetDataType(phi::DataType::FLOAT32);
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kernel->OutputAt(5).SetDataType(phi::DataType::FLOAT32);
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kernel->OutputAt(6).SetDataType(phi::DataType::FLOAT32);
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}
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kernel->OutputAt(4).SetBackend(phi::Backend::UNDEFINED);
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kernel->OutputAt(5).SetBackend(phi::Backend::UNDEFINED);
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}
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