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SparseBinaryOpIntersectionKernel.cpp
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SparseBinaryOpIntersectionKernel.cpp
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#define TORCH_ASSERT_ONLY_METHOD_OPERATORS
#include <ATen/native/sparse/SparseStubs.h>
#include <ATen/native/sparse/SparseBinaryOpIntersectionCommon.h>
#include <ATen/native/cpu/Loops.h>
#include <ATen/native/TensorIterator.h>
#include <ATen/AccumulateType.h>
namespace at::native {
namespace {
template <typename func_t>
struct CPUKernelLauncher {
static void launch(TensorIteratorBase& iter, const func_t& f) {
cpu_kernel(iter, f);
}
};
struct MulOp {
template <typename scalar_t>
static scalar_t apply(scalar_t a, scalar_t b) {
return a * b;
}
};
template <>
bool MulOp::apply(bool a, bool b) {
return a && b;
}
struct RhsProjOp {
template <typename scalar_t>
static scalar_t apply(scalar_t a, scalar_t b) {
return b;
}
};
struct LhsProjOp {
template <typename scalar_t>
static scalar_t apply(scalar_t a, scalar_t b) {
return a;
}
};
template <typename binary_op_t>
struct CPUValueSelectionIntersectionKernel {
static Tensor apply(
const Tensor& lhs_values,
const Tensor& lhs_select_idx,
const Tensor& rhs_values,
const Tensor& rhs_select_idx,
const Tensor& intersection_counts,
const Tensor& argsort,
const bool accumulate_matches) {
auto iter = make_value_selection_intersection_iter(
lhs_values,
lhs_select_idx,
rhs_values,
rhs_select_idx,
intersection_counts);
auto res_values = iter.tensor(0);
auto lhs_nnz_stride = lhs_values.stride(0);
auto rhs_nnz_stride = rhs_values.stride(0);
AT_DISPATCH_ALL_TYPES_AND_COMPLEX_AND4(
ScalarType::Bool, ScalarType::Half, ScalarType::BFloat16, at::ScalarType::ComplexHalf,
res_values.scalar_type(),
"binary_op_intersection_cpu", [&] {
// COO indices are only 64-bit for now.
using index_t = int64_t;
auto loop = [&](char** data, const int64_t* strides, int64_t n) {
auto* ptr_res_values_bytes = data[0];
const auto* ptr_lhs_values_bytes = data[1];
const auto* ptr_lhs_select_idx_bytes = data[2];
const auto* ptr_rhs_values_bytes = data[3];
const auto* ptr_rhs_select_idx_bytes = data[4];
const auto* ptr_intersection_counts_bytes = data[5];
const auto* ptr_argsort = argsort.const_data_ptr<index_t>();
for (int64_t i = 0; i < n; ++i) {
// Exctract data
auto* ptr_res_values = reinterpret_cast<scalar_t*>(ptr_res_values_bytes);
const auto* ptr_lhs_values = reinterpret_cast<const scalar_t*>(ptr_lhs_values_bytes);
const auto lhs_nnz_idx = *reinterpret_cast<const index_t*>(ptr_lhs_select_idx_bytes);
const auto* ptr_rhs_values = reinterpret_cast<const scalar_t*>(ptr_rhs_values_bytes);
const auto rhs_nnz_idx = *reinterpret_cast<const index_t*>(ptr_rhs_select_idx_bytes);
const auto count = *reinterpret_cast<const int64_t*>(ptr_intersection_counts_bytes);
const auto* ptr_lhs_begin = ptr_lhs_values + lhs_nnz_idx * lhs_nnz_stride;
const auto* ptr_rhs_sorted_nnz_idx = ptr_argsort + rhs_nnz_idx;
using accscalar_t = at::acc_type<scalar_t, /*is_gpu=*/false>;
accscalar_t res_values = 0;
accscalar_t lhs_values = static_cast<accscalar_t>(*ptr_lhs_begin);
accscalar_t rhs_values;
index_t rhs_sorted_nnz_idx;
const auto match_count = accumulate_matches ? count : std::min<int64_t>(count, 1);
for (int64_t c = 0; c < match_count; ++c) {
rhs_sorted_nnz_idx = *ptr_rhs_sorted_nnz_idx++;
rhs_values = static_cast<accscalar_t>(*(ptr_rhs_values + rhs_sorted_nnz_idx * rhs_nnz_stride));
res_values += binary_op_t::apply(lhs_values, rhs_values);
}
*ptr_res_values = static_cast<scalar_t>(res_values);
// Advance
ptr_res_values_bytes += strides[0];
ptr_lhs_values_bytes += strides[1];
ptr_lhs_select_idx_bytes += strides[2];
ptr_rhs_values_bytes += strides[3];
ptr_rhs_select_idx_bytes += strides[4];
ptr_intersection_counts_bytes += strides[5];
}
};
iter.for_each(loop, at::internal::GRAIN_SIZE);
});
return res_values;
}
};
using OptTensor = std::optional<Tensor>;
void mul_sparse_sparse_out_cpu_kernel(
Tensor& result,
const Tensor& x,
const Tensor& y) {
using CPUValueSelectionMulKernel = CPUValueSelectionIntersectionKernel<MulOp>;
_sparse_binary_op_intersection_kernel_out<CPUKernelLauncher, CPUValueSelectionMulKernel>(
result, x, y
);
}
void sparse_mask_intersection_out_cpu_kernel(
Tensor& result,
const Tensor& x,
const Tensor& y,
const OptTensor& x_hash_opt = std::nullopt) {
using CPUValueRhsProjKernel = CPUValueSelectionIntersectionKernel<RhsProjOp>;
_sparse_binary_op_intersection_kernel_out<CPUKernelLauncher, CPUValueRhsProjKernel>(
result, x, y, x_hash_opt
);
}
void sparse_mask_projection_out_cpu_kernel(
Tensor& result,
const Tensor& x,
const Tensor& y,
const OptTensor& x_hash_opt,
bool accumulate_matches) {
using CPUValueLhsProjKernel = CPUValueSelectionIntersectionKernel<LhsProjOp>;
_sparse_binary_op_intersection_kernel_out<CPUKernelLauncher, CPUValueLhsProjKernel>(
result, x, y, x_hash_opt, std::nullopt, accumulate_matches
);
}
}
REGISTER_ARCH_DISPATCH(mul_sparse_sparse_out_stub, DEFAULT, &mul_sparse_sparse_out_cpu_kernel)
REGISTER_AVX512_DISPATCH(mul_sparse_sparse_out_stub, &mul_sparse_sparse_out_cpu_kernel)
REGISTER_AVX2_DISPATCH(mul_sparse_sparse_out_stub, &mul_sparse_sparse_out_cpu_kernel)
REGISTER_VSX_DISPATCH(mul_sparse_sparse_out_stub, &mul_sparse_sparse_out_cpu_kernel)
REGISTER_ZVECTOR_DISPATCH(mul_sparse_sparse_out_stub, &mul_sparse_sparse_out_cpu_kernel)
REGISTER_SVE256_DISPATCH(mul_sparse_sparse_out_stub, &mul_sparse_sparse_out_cpu_kernel)
REGISTER_ARCH_DISPATCH(sparse_mask_intersection_out_stub, DEFAULT, &sparse_mask_intersection_out_cpu_kernel)
REGISTER_AVX512_DISPATCH(sparse_mask_intersection_out_stub, &sparse_mask_intersection_out_cpu_kernel)
REGISTER_AVX2_DISPATCH(sparse_mask_intersection_out_stub, &sparse_mask_intersection_out_cpu_kernel)
REGISTER_VSX_DISPATCH(sparse_mask_intersection_out_stub, &sparse_mask_intersection_out_cpu_kernel)
REGISTER_ZVECTOR_DISPATCH(sparse_mask_intersection_out_stub, &sparse_mask_intersection_out_cpu_kernel)
REGISTER_SVE256_DISPATCH(sparse_mask_intersection_out_stub, &sparse_mask_intersection_out_cpu_kernel)
REGISTER_ARCH_DISPATCH(sparse_mask_projection_out_stub, DEFAULT, &sparse_mask_projection_out_cpu_kernel)
REGISTER_AVX512_DISPATCH(sparse_mask_projection_out_stub, &sparse_mask_projection_out_cpu_kernel)
REGISTER_AVX2_DISPATCH(sparse_mask_projection_out_stub, &sparse_mask_projection_out_cpu_kernel)
REGISTER_VSX_DISPATCH(sparse_mask_projection_out_stub, &sparse_mask_projection_out_cpu_kernel)
REGISTER_ZVECTOR_DISPATCH(sparse_mask_projection_out_stub, &sparse_mask_projection_out_cpu_kernel)
REGISTER_SVE256_DISPATCH(sparse_mask_projection_out_stub, &sparse_mask_projection_out_cpu_kernel)
}