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SparseUnaryOps.cpp
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// #define TORCH_ASSERT_ONLY_METHOD_OPERATORS
#include <ATen/native/SparseTensorUtils.h>
#include <ATen/core/Tensor.h>
#ifndef AT_PER_OPERATOR_HEADERS
#include <ATen/Functions.h>
#include <ATen/NativeFunctions.h>
#else
#include <ATen/ops/_sparse_coo_tensor_with_dims_and_tensors.h>
#include <ATen/ops/abs.h>
#include <ATen/ops/abs_native.h>
#include <ATen/ops/asin.h>
#include <ATen/ops/asin_native.h>
#include <ATen/ops/asinh.h>
#include <ATen/ops/asinh_native.h>
#include <ATen/ops/atan.h>
#include <ATen/ops/atan_native.h>
#include <ATen/ops/atanh.h>
#include <ATen/ops/atanh_native.h>
#include <ATen/ops/ceil.h>
#include <ATen/ops/ceil_native.h>
#include <ATen/ops/deg2rad.h>
#include <ATen/ops/deg2rad_native.h>
#include <ATen/ops/erf.h>
#include <ATen/ops/erf_native.h>
#include <ATen/ops/erfinv.h>
#include <ATen/ops/erfinv_native.h>
#include <ATen/ops/expm1.h>
#include <ATen/ops/expm1_native.h>
#include <ATen/ops/floor.h>
#include <ATen/ops/floor_native.h>
#include <ATen/ops/frac.h>
#include <ATen/ops/frac_native.h>
#include <ATen/ops/isinf.h>
#include <ATen/ops/isinf_native.h>
#include <ATen/ops/isnan.h>
#include <ATen/ops/isnan_native.h>
#include <ATen/ops/isneginf.h>
#include <ATen/ops/isneginf_native.h>
#include <ATen/ops/isposinf.h>
#include <ATen/ops/isposinf_native.h>
#include <ATen/ops/log1p.h>
#include <ATen/ops/log1p_native.h>
#include <ATen/ops/nan_to_num.h>
#include <ATen/ops/nan_to_num_native.h>
#include <ATen/ops/rad2deg.h>
#include <ATen/ops/rad2deg_native.h>
#include <ATen/ops/relu.h>
#include <ATen/ops/relu_native.h>
#include <ATen/ops/round.h>
#include <ATen/ops/round_native.h>
#include <ATen/ops/sgn.h>
#include <ATen/ops/sgn_native.h>
#include <ATen/ops/sign.h>
#include <ATen/ops/sign_native.h>
#include <ATen/ops/signbit.h>
#include <ATen/ops/signbit_native.h>
#include <ATen/ops/sin.h>
#include <ATen/ops/sin_native.h>
#include <ATen/ops/sinh.h>
#include <ATen/ops/sinh_native.h>
#include <ATen/ops/sparse_resize_native.h>
#include <ATen/ops/sqrt.h>
#include <ATen/ops/sqrt_native.h>
#include <ATen/ops/tan.h>
#include <ATen/ops/tan_native.h>
#include <ATen/ops/tanh.h>
#include <ATen/ops/tanh_native.h>
#include <ATen/ops/threshold_backward.h>
#include <ATen/ops/threshold_backward_native.h>
#include <ATen/ops/trunc.h>
#include <ATen/ops/trunc_native.h>
#endif
namespace at::native {
namespace {
template <typename Ufunc>
Tensor coalesced_unary_ufunc(const Tensor &self, const Ufunc &ufunc) {
TORCH_INTERNAL_ASSERT(self.is_sparse());
const auto input = self.coalesce();
Tensor out_values = ufunc(input.values());
Tensor result = at::_sparse_coo_tensor_with_dims_and_tensors(
input.sparse_dim(),
input.dense_dim(),
input.sizes(),
input.indices().clone(),
out_values,
input.options().dtype(out_values.scalar_type()));
result._coalesced_(true);
return result;
}
template <typename Ufunc>
Tensor& coalesced_unary_ufunc_(Tensor &self, const Ufunc &ufunc) {
TORCH_INTERNAL_ASSERT(self.is_sparse());
auto values = self._values();
ufunc(values);
return self;
}
template <typename Ufunc>
Tensor& coalesced_unary_ufunc_out(const Tensor &self, Tensor &result, const Ufunc &ufunc) {
if (self.is_same(result)) {
TORCH_CHECK(self.is_coalesced(), "expected coalesced tensor for inplace operation");
auto values = self._values();
ufunc(values, values);
return result;
}
TORCH_CHECK(self.is_sparse() && result.is_sparse());
const auto input = self.coalesce();
sparse_resize_(result, input.sizes(), input.sparse_dim(), input.dense_dim());
auto *input_impl = sparse::get_sparse_impl(input);
auto *result_impl = sparse::get_sparse_impl(result);
auto input_values = input_impl->values();
auto result_values = result_impl->values();
result_values.resize_(input_values.sizes());
ufunc(input_values, result_values);
auto input_indices = input_impl->indices();
auto result_indices = result_impl->indices();
result_indices.resize_(input_indices.sizes());
result_indices.copy_(input_indices);
result._coalesced_(true);
return result;
}
} // namespace (anonymous)
// Generic formulation for unary operators which map 0 -> 0 so
// we can just transform self.values() and preserve the sparsity pattern.
//
// Any non-linear function requires the tensor to be coalesced before
// we can calculate the result. This also means inplace calculations
// are only possible on coalesced tensors.
#define COALESCED_UNARY_UFUNC_FUNCTIONAL(op_name) \
Tensor op_name##_sparse(const Tensor &self) { \
return coalesced_unary_ufunc( \
self, [](const Tensor &t) { \
return at::op_name(t); \
}); \
}
#define COALESCED_UNARY_UFUNC_NO_INPLACE(op_name) \
COALESCED_UNARY_UFUNC_FUNCTIONAL(op_name) \
Tensor& op_name##_sparse_out(const Tensor &self, \
Tensor &out) { \
return coalesced_unary_ufunc_out( \
self, out, [](const Tensor &t, Tensor &out) { \
return at::op_name##_outf(t, out); \
}); \
}
#define COALESCED_UNARY_UFUNC(op_name) \
COALESCED_UNARY_UFUNC_NO_INPLACE(op_name) \
Tensor& op_name##_sparse_(Tensor &self) { \
TORCH_CHECK(self.is_coalesced(), \
#op_name "_ requires coalesced input"); \
return coalesced_unary_ufunc_(self, [](Tensor &t) { \
return t.op_name##_(); \
}); \
}
COALESCED_UNARY_UFUNC(abs);
COALESCED_UNARY_UFUNC(asin);
COALESCED_UNARY_UFUNC(asinh);
COALESCED_UNARY_UFUNC(atan);
COALESCED_UNARY_UFUNC(atanh);
COALESCED_UNARY_UFUNC(ceil);
COALESCED_UNARY_UFUNC(deg2rad);
COALESCED_UNARY_UFUNC(erf);
COALESCED_UNARY_UFUNC(erfinv);
COALESCED_UNARY_UFUNC(expm1);
COALESCED_UNARY_UFUNC(floor);
COALESCED_UNARY_UFUNC(frac);
COALESCED_UNARY_UFUNC(log1p);
COALESCED_UNARY_UFUNC(round);
COALESCED_UNARY_UFUNC(rad2deg);
COALESCED_UNARY_UFUNC(sign);
COALESCED_UNARY_UFUNC(sgn);
COALESCED_UNARY_UFUNC(sin);
COALESCED_UNARY_UFUNC(sinh);
COALESCED_UNARY_UFUNC(sqrt);
COALESCED_UNARY_UFUNC(tan);
COALESCED_UNARY_UFUNC(tanh);
COALESCED_UNARY_UFUNC(trunc);
COALESCED_UNARY_UFUNC(relu);
COALESCED_UNARY_UFUNC_NO_INPLACE(signbit);
COALESCED_UNARY_UFUNC_NO_INPLACE(isneginf);
COALESCED_UNARY_UFUNC_NO_INPLACE(isposinf);
COALESCED_UNARY_UFUNC_FUNCTIONAL(isnan);
COALESCED_UNARY_UFUNC_FUNCTIONAL(isinf);
Tensor isinf_sparse_meta(const Tensor& self) {
TORCH_CHECK_NOT_IMPLEMENTED(0, "nyi isinf for SparseMeta");
}
// Threshold_backward is not unary but it is the backward used for relu which is
// unary
Tensor threshold_backward_sparse(
const Tensor& grad_output,
const Tensor& self,
const Scalar& threshold) {
auto self_v = [&self]() {
if (self.is_coalesced()) {
return self.values();
} else {
return self.coalesce().values();
}
}();
return coalesced_unary_ufunc(grad_output, [&](const Tensor& t) {
return at::threshold_backward(t, self_v, threshold);
});
}
Tensor& threshold_backward_sparse_out(
const Tensor& grad_output,
const Tensor& self,
const Scalar& threshold,
Tensor& grad_input) {
auto self_v = [&self]() {
if (self.is_coalesced()) {
return self.values();
} else {
return self.coalesce().values();
}
}();
return coalesced_unary_ufunc_out(
grad_output, grad_input, [&](const Tensor& t, Tensor& out) {
return at::threshold_backward_outf(t, self_v, threshold, out);
});
}
Tensor nan_to_num_sparse(
const Tensor &self, c10::optional<double> nan,
c10::optional<double> posinf, c10::optional<double> neginf) {
return coalesced_unary_ufunc(
self, [&](const Tensor &t) {
return at::nan_to_num(t, nan, posinf, neginf);
});
}
Tensor& nan_to_num_sparse_out(
const Tensor &self, c10::optional<double> nan,
c10::optional<double> posinf, c10::optional<double> neginf,
Tensor &out) {
return coalesced_unary_ufunc_out(
self, out, [&](const Tensor &t, Tensor &out) {
return at::nan_to_num_outf(t, nan, posinf, neginf, out);
});
}
Tensor& nan_to_num_sparse_(
Tensor &self, c10::optional<double> nan,
c10::optional<double> posinf, c10::optional<double> neginf) {
TORCH_CHECK(self.is_coalesced(), "nan_to_num_ requires coalesced input");
return nan_to_num_sparse_out(self, nan, posinf, neginf, self);
}
} // namespace at::native