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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.
#if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
#include "paddle/phi/kernels/compare_kernel.h"
#include <limits>
#include "paddle/common/flags.h"
#include "paddle/phi/backends/gpu/gpu_context.h"
#include "paddle/phi/core/kernel_registry.h"
#include "paddle/phi/core/visit_type.h"
#include "paddle/phi/kernels/contiguous_kernel.h"
#include "paddle/phi/kernels/funcs/compare_functors.h"
#include "paddle/phi/kernels/funcs/dense_tensor_iterator.h"
#include "paddle/phi/kernels/funcs/index_elementwise.cu.h"
#include "paddle/phi/kernels/funcs/indexing.h"
#include "paddle/phi/kernels/stride/elementwise_stride_base.cu.h"
#if defined(__NVCC__) || defined(__HIPCC__) || defined(__xpu__)
#include "paddle/phi/kernels/funcs/dims_simplifier.h"
#endif
COMMON_DECLARE_bool(use_stride_kernel);
COMMON_DECLARE_bool(use_stride_compute_kernel);
COMMON_DECLARE_bool(force_stride_compute_contig_out);
namespace phi {
template <typename T, typename Context, typename Functor>
void LaunchCompareStrideKernel(const Context &dev_ctx,
const DenseTensor &x,
const DenseTensor &y,
Functor func,
int axis,
DenseTensor *out) {
dev_ctx.template Alloc<bool>(out);
out->set_type(phi::DataType::BOOL);
if (out->numel() == 0) return;
std::vector<const DenseTensor *> inputs = {&x, &y};
std::vector<DenseTensor *> outputs = {out};
BinaryStrideBroadcastKernel<bool, Context>(
dev_ctx, inputs, &outputs, Functor(), axis);
}
#define DEFINE_CUDA_COMPARE_STRIDE_OP(name, functor_name) \
template <typename T, typename Context> \
void name##StrideKernel(const Context &dev_ctx, \
const DenseTensor &x, \
const DenseTensor &y, \
DenseTensor *out) { \
if (!FLAGS_use_stride_kernel) { \
PADDLE_THROW(common::errors::Fatal( \
"FLAGS_use_stride_kernel is closed. Strided kernel " \
"be called, something wrong has happened!")); \
} \
DenseTensor x_; \
DenseTensor y_; \
bool zero_size = false; \
if (x.numel() == 0 || y.numel() == 0) { \
zero_size = true; \
} \
if (!FLAGS_use_stride_compute_kernel || zero_size) { \
if (!x.meta().is_contiguous()) { \
x_ = Tensor2Contiguous<Context>(dev_ctx, x); \
} else { \
x_ = x; \
} \
if (!y.meta().is_contiguous()) { \
y_ = Tensor2Contiguous<Context>(dev_ctx, y); \
} else { \
y_ = y; \
} \
} else { \
x_ = x; \
y_ = y; \
} \
if (x_.meta().is_contiguous() && y_.meta().is_contiguous()) { \
auto meta = out->meta(); \
meta.strides = meta.calc_strides(out->dims()); \
out->set_meta(meta); \
phi::name##Kernel<T, Context>(dev_ctx, x_, y_, out); \
return; \
} \
if (!FLAGS_use_stride_compute_kernel) { \
PADDLE_THROW( \
common::errors::Fatal("FLAGS_use_stride_compute_kernel is closed. " \
"Kernel using DenseTensorIterator " \
"be called, something wrong has happened!")); \
} \
\
if (FLAGS_force_stride_compute_contig_out) { \
auto meta = out->meta(); \
meta.strides = meta.calc_strides(out->dims()); \
out->set_meta(meta); \
} \
if (out->IsSharedWith(x_)) { \
auto x_origin = x_; \
LaunchCompareStrideKernel<T, Context>( \
dev_ctx, x_origin, y_, funcs::functor_name##Functor<T>(), -1, out); \
} else { \
LaunchCompareStrideKernel<T, Context>( \
dev_ctx, x_, y_, funcs::functor_name##Functor<T>(), -1, out); \
} \
}
DEFINE_CUDA_COMPARE_STRIDE_OP(LessThan, LessThan)
DEFINE_CUDA_COMPARE_STRIDE_OP(LessEqual, LessEqual)
DEFINE_CUDA_COMPARE_STRIDE_OP(GreaterThan, GreaterThan)
DEFINE_CUDA_COMPARE_STRIDE_OP(GreaterEqual, GreaterEqual)
DEFINE_CUDA_COMPARE_STRIDE_OP(Equal, Equal)
DEFINE_CUDA_COMPARE_STRIDE_OP(NotEqual, NotEqual)
#undef DEFINE_CUDA_COMPARE_STRIDE_OP
} // namespace phi
#define REGISTER_STRIDE_COMPLEX_COMPARE_KERNEL(less_than, func) \
PD_REGISTER_KERNEL(less_than, \
GPU, \
STRIDED, \
phi::func##Kernel, \
bool, \
int, \
uint8_t, \
int8_t, \
int16_t, \
int64_t, \
phi::complex64, \
phi::complex128, \
float, \
double, \
phi::float16, \
phi::bfloat16) { \
kernel->OutputAt(0).SetDataType(phi::DataType::BOOL); \
}
REGISTER_STRIDE_COMPLEX_COMPARE_KERNEL(less_than, LessThanStride)
REGISTER_STRIDE_COMPLEX_COMPARE_KERNEL(less_equal, LessEqualStride)
REGISTER_STRIDE_COMPLEX_COMPARE_KERNEL(greater_than, GreaterThanStride)
REGISTER_STRIDE_COMPLEX_COMPARE_KERNEL(greater_equal, GreaterEqualStride)
REGISTER_STRIDE_COMPLEX_COMPARE_KERNEL(equal, EqualStride)
REGISTER_STRIDE_COMPLEX_COMPARE_KERNEL(not_equal, NotEqualStride)
#undef REGISTER_STRIDE_COMPLEX_COMPARE_KERNEL
#endif