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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.
#include "paddle/phi/kernels/eigh_kernel.h"
#include "paddle/phi/common/data_type.h"
#include "paddle/phi/core/kernel_registry.h"
#include "paddle/phi/kernels/funcs/complex_functors.h"
#include "paddle/phi/kernels/funcs/values_vectors_functor.h"
namespace phi {
template <typename T, typename Context>
void EighKernel(const Context& dev_ctx,
const DenseTensor& x,
const std::string& uplo,
DenseTensor* out_w,
DenseTensor* out_v) {
if (x.numel() == 0) {
auto x_dim = x.dims();
auto w_dim = slice_ddim(x_dim, 0, x_dim.size() - 1);
out_w->Resize(w_dim);
out_v->Resize(x_dim);
dev_ctx.template Alloc<T>(out_w);
dev_ctx.template Alloc<T>(out_v);
return;
}
bool is_lower = (uplo == "L");
funcs::MatrixEighFunctor<Context, T> functor;
functor(dev_ctx, x, out_w, out_v, is_lower, true);
}
} // namespace phi
#ifdef PADDLE_WITH_HIP
PD_REGISTER_KERNEL(eigh, GPU, ALL_LAYOUT, phi::EighKernel, float, double) {
kernel->OutputAt(0).SetDataType(phi::dtype::ToReal(kernel_key.dtype()));
}
#else
PD_REGISTER_KERNEL(eigh,
GPU,
ALL_LAYOUT,
phi::EighKernel,
float,
double,
phi::complex64,
phi::complex128) {
kernel->OutputAt(0).SetDataType(phi::dtype::ToReal(kernel_key.dtype()));
}
#endif