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paddlepaddle--paddle/paddle/phi/kernels/gpu/ap_variadic_kernel.cu
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// Copyright (c) 2025 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/gpu/ap_variadic_kernel.h"
#include "paddle/ap/include/axpr/data_type_util.h"
#include "paddle/ap/include/kernel_dispatch/ap_variadic_kernel.h"
#include "paddle/ap/include/paddle/phi/device_ctx.h"
#include "paddle/common/enforce.h"
#include "paddle/phi/backends/gpu/gpu_context.h"
#include "paddle/phi/core/dense_tensor.h"
#include "paddle/phi/core/kernel_registry.h"
namespace phi {
template <typename Context>
void AllocateOutTensors(const Context& dev_ctx,
const std::vector<DenseTensor*>& outs) {
for (auto* out : outs) {
auto out_dtype = ap::axpr::GetDataTypeFromPhiDataType(out->dtype());
PADDLE_ENFORCE_EQ(out_dtype.HasOkValue(),
true,
common::errors::InvalidArgument(
"GetDataTypeFromPhiDataType() failed !"));
out_dtype.GetOkValue().Match(
[&](const ap::axpr::CppDataType<ap::adt::Undefined>&) {
PADDLE_THROW(common::errors::InvalidArgument(
"allocate not support undefined !"));
},
[&](const ap::axpr::CppDataType<uint64_t>&) {
PADDLE_THROW(common::errors::InvalidArgument(
"allocate not support uint64_t !"));
},
[&](const ap::axpr::CppDataType<uint32_t>&) {
PADDLE_THROW(common::errors::InvalidArgument(
"allocate not support uint32_t !"));
},
[&](const ap::axpr::CppDataType<uint16_t>&) {
PADDLE_THROW(common::errors::InvalidArgument(
"allocate not support uint16_t !"));
},
[&](const auto& impl) {
using tensor_type = typename std::decay_t<decltype(impl)>::type;
dev_ctx.template Alloc<tensor_type>(out);
});
}
return;
}
template <typename T, typename Context>
void ApVariadicKernel(const Context& dev_ctx,
const std::vector<const DenseTensor*>& xs,
int num_outputs,
const std::string& code_module_lambda,
const std::string& infer_symbolic_lambda,
const std::string& infer_meta_lambda,
const std::string& kernel_dispatch_lambda,
const std::string& kernel_dispatch_const_data_lambda,
std::vector<DenseTensor*> outs) {
PADDLE_ENFORCE_GT(
xs.size(),
0,
common::errors::InvalidArgument(
"At least 1 input is required. current number out uts: // %d",
xs.size()));
PADDLE_ENFORCE_GT(
outs.size(),
0,
common::errors::InvalidArgument(
"num_outputs must be greater than 1. current _outputs: // %d",
outs.size()));
AllocateOutTensors<Context>(dev_ctx, outs);
std::shared_ptr<ap::kernel_dispatch::DeviceCtxImpl> impl =
std::make_shared<ap::paddle::DeviceCtx<Context>>(&dev_ctx);
ap::kernel_dispatch::DeviceCtx ap_device_ctx{impl};
const auto& ret =
ap::kernel_dispatch::ApVariadicKernel(ap_device_ctx,
xs,
num_outputs,
code_module_lambda,
infer_meta_lambda,
kernel_dispatch_lambda,
kernel_dispatch_const_data_lambda,
outs);
PADDLE_ENFORCE_EQ(
ret.HasError(),
false,
common::errors::Fatal("ap_variadic failed. \nTraceback (most "
"recent call last):\n%s\n%s: %s. ",
ret.GetError().CallStackToString(),
ret.GetError().class_name(),
ret.GetError().msg()));
}
} // namespace phi
#ifdef PADDLE_WITH_HIP
PD_REGISTER_KERNEL(ap_variadic,
GPU,
ALL_LAYOUT,
phi::ApVariadicKernel,
float,
double,
phi::float16) {}
#else
PD_REGISTER_KERNEL(ap_variadic,
GPU,
ALL_LAYOUT,
phi::ApVariadicKernel,
float,
double,
phi::float16,
phi::bfloat16) {}
#endif