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// 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. | ||
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#include "paddle/phi/kernels/gaussian_random_kernel.h" | ||
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#include "paddle/phi/backends/cpu/cpu_context.h" | ||
#include "paddle/phi/core/kernel_registry.h" | ||
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#include "paddle/fluid/framework/generator.h" | ||
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namespace phi { | ||
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template <typename T, typename Context> | ||
void GaussianRandomKernel(const Context& dev_ctx, | ||
const ScalarArray& shape, | ||
float mean, | ||
float std, | ||
int seed, | ||
DataType dtype, | ||
DenseTensor* out) { | ||
auto tensor = out; | ||
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std::normal_distribution<T> dist(mean, std); | ||
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tensor->Resize(phi::make_ddim(shape.GetData())); | ||
int64_t size = tensor->numel(); | ||
T* data = dev_ctx.template Alloc<T>(tensor); | ||
auto engine = paddle::framework::GetCPURandomEngine(seed); | ||
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for (int64_t i = 0; i < size; ++i) { | ||
data[i] = dist(*engine); | ||
} | ||
} | ||
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} // namespace phi | ||
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PD_REGISTER_KERNEL(gaussian_random, | ||
CPU, | ||
ALL_LAYOUT, | ||
phi::GaussianRandomKernel, | ||
float, | ||
double) {} |
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// 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. | ||
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#pragma once | ||
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#include "paddle/phi/common/scalar_array.h" | ||
#include "paddle/phi/core/dense_tensor.h" | ||
#include "paddle/phi/core/device_context.h" | ||
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namespace phi { | ||
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template <typename T, typename Context> | ||
void GaussianRandomKernel(const Context& ctx, | ||
const ScalarArray& shape, | ||
float mean, | ||
float std, | ||
int seed, | ||
DataType dtype, | ||
DenseTensor* out); | ||
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} // namespace phi |
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// 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. | ||
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#include "paddle/phi/kernels/gaussian_random_kernel.h" | ||
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#include <thrust/device_vector.h> | ||
#include <thrust/host_vector.h> | ||
#include <thrust/random.h> | ||
#include <thrust/transform.h> | ||
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#include "paddle/phi/backends/gpu/gpu_context.h" | ||
#include "paddle/phi/core/dense_tensor.h" | ||
#include "paddle/phi/core/kernel_registry.h" | ||
#include "paddle/phi/kernels/funcs/distribution_helper.h" | ||
#include "paddle/phi/kernels/funcs/index_impl.cu.h" | ||
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#include "paddle/fluid/framework/generator.h" | ||
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DECLARE_bool(use_curand); | ||
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namespace phi { | ||
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template <typename T> | ||
struct GaussianGenerator { | ||
T mean_, std_; | ||
unsigned int seed_; | ||
unsigned int offset_ = 0; | ||
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__host__ __device__ GaussianGenerator(T mean, T std, int seed) | ||
: mean_(mean), std_(std), seed_(seed) {} | ||
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__host__ __device__ GaussianGenerator(T mean, T std, int seed, int offset) | ||
: mean_(mean), std_(std), seed_(seed), offset_(offset) {} | ||
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__host__ __device__ T operator()(const unsigned int n) const { | ||
thrust::minstd_rand rng; | ||
rng.seed(seed_); | ||
using MT = typename phi::kps::details::MPTypeTrait<T>::Type; | ||
thrust::normal_distribution<MT> dist(mean_, std_); | ||
unsigned int new_n = n + offset_; | ||
rng.discard(new_n); | ||
MT out = dist(rng); | ||
return static_cast<T>(out); | ||
} | ||
}; | ||
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template <typename T, typename Context> | ||
void GaussianRandomKernel(const Context& dev_ctx, | ||
const ScalarArray& shape, | ||
float mean, | ||
float std, | ||
int seed, | ||
DataType dtype, | ||
DenseTensor* out) { | ||
auto tensor = out; | ||
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bool seed_flag = false; | ||
if (seed == 0) { | ||
std::random_device rd; | ||
seed = rd(); | ||
seed_flag = true; | ||
} | ||
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tensor->Resize(phi::make_ddim(shape.GetData())); | ||
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T* data = dev_ctx.template Alloc<T>(tensor); | ||
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int64_t size = tensor->numel(); | ||
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int device_id = dev_ctx.GetPlace().GetDeviceId(); | ||
auto gen_cuda = paddle::framework::GetDefaultCUDAGenerator(device_id); | ||
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using MT = typename phi::kps::details::MPTypeTrait<T>::Type; | ||
if (gen_cuda->GetIsInitPy() && seed_flag) { | ||
if (FLAGS_use_curand) { | ||
funcs::normal_distribution<MT> dist; | ||
funcs::normal_transform<MT> trans(mean, std); | ||
funcs::distribution_and_transform<T>(dev_ctx, tensor, dist, trans); | ||
} else { | ||
auto seed_offset = gen_cuda->IncrementOffset(1); | ||
int64_t gen_offset = size * seed_offset.second; | ||
auto func = | ||
GaussianGenerator<MT>(mean, std, seed_offset.first, gen_offset); | ||
IndexKernel<T, GaussianGenerator<MT>>(dev_ctx, tensor, func); | ||
} | ||
} else { | ||
auto func = GaussianGenerator<MT>(mean, std, seed); | ||
IndexKernel<T, GaussianGenerator<MT>>(dev_ctx, tensor, func); | ||
} | ||
} | ||
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} // namespace phi | ||
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PD_REGISTER_KERNEL(gaussian_random, | ||
GPU, | ||
ALL_LAYOUT, | ||
phi::GaussianRandomKernel, | ||
phi::dtype::float16, | ||
float, | ||
double) {} |
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// 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. | ||
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#include "paddle/phi/core/compat/op_utils.h" | ||
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namespace phi { | ||
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KernelSignature GaussianRandomOpArgumentMapping( | ||
const ArgumentMappingContext& ctx) { | ||
if (ctx.InputSize("ShapeTensorList") > 0) { | ||
return KernelSignature("gaussian_random", | ||
{}, | ||
{"ShapeTensorList", "mean", "std", "seed", "dtype"}, | ||
{"Out"}); | ||
} | ||
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const auto& shape = paddle::any_cast<std::vector<int64_t>>(ctx.Attr("shape")); | ||
if (ctx.HasInput("ShapeTensor") && shape.empty()) { | ||
return KernelSignature("gaussian_random", | ||
{}, | ||
{"ShapeTensor", "mean", "std", "seed", "dtype"}, | ||
{"Out"}); | ||
} | ||
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return KernelSignature("gaussian_random", | ||
{}, | ||
{"shape", "mean", "std", "seed", "dtype"}, | ||
{"Out"}); | ||
} | ||
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} // namespace phi | ||
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PD_REGISTER_ARG_MAPPING_FN(gaussian_random, | ||
phi::GaussianRandomOpArgumentMapping); |
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✅Congratulation! Your pull request passed all required CI. You could ask reviewer(s) to approve and merge. 🎉