mirror of
https://github.com/pytorch/pytorch.git
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a8ca340ad6
Summary: AT_CHECK has been deprecated and provides no more features than TORCH_CHECK Pull Request resolved: https://github.com/pytorch/pytorch/pull/34846 Differential Revision: D20481339 Pulled By: mrshenli fbshipit-source-id: 1777e769a069a78e03118270294e5e273d516ca7
718 lines
31 KiB
C++
718 lines
31 KiB
C++
#include <torch/csrc/python_headers.h>
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#include <torch/csrc/utils/tensor_new.h>
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#include <pybind11/pybind11.h>
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#include <torch/csrc/DynamicTypes.h>
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#include <torch/csrc/Exceptions.h>
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#include <torch/csrc/Size.h>
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#include <torch/csrc/autograd/variable.h>
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#include <torch/csrc/utils/cuda_lazy_init.h>
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#include <torch/csrc/utils/numpy_stub.h>
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#include <torch/csrc/utils/python_arg_parser.h>
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#include <torch/csrc/utils/python_numbers.h>
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#include <torch/csrc/utils/python_scalars.h>
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#include <torch/csrc/utils/python_strings.h>
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#include <torch/csrc/utils/tensor_numpy.h>
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#include <torch/csrc/autograd/generated/variable_factories.h>
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#include <ATen/ATen.h>
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#include <ATen/InitialTensorOptions.h>
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#include <ATen/NamedTensorUtils.h>
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#include <c10/core/Backend.h>
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#include <c10/core/Layout.h>
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#include <c10/util/Exception.h>
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#include <c10/util/Optional.h>
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#include <stdexcept>
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#include <vector>
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using at::Backend;
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using at::Device;
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using at::DeviceType;
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using at::IntArrayRef;
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using at::kCPU;
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using at::kCUDA;
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using at::kLong;
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using at::Scalar;
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using at::ScalarType;
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using at::Storage;
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using at::Tensor;
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using at::TensorOptions;
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using at::Type;
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using c10::optional;
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namespace torch { namespace utils {
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namespace {
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const int MAX_DIMS = 128;
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Backend backendToBackendOfDeviceType(Backend b, DeviceType d) {
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switch (d) {
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case DeviceType::CPU:
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return backendToCPU(b);
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case DeviceType::CUDA:
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return backendToCUDA(b);
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case DeviceType::HIP:
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return backendToHIP(b);
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case DeviceType::MSNPU:
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TORCH_CHECK(!isSparse(b), "Sparse not implemented for MSNPU");
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return Backend::MSNPU;
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case DeviceType::XLA:
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TORCH_CHECK(!isSparse(b), "Sparse not implemented for XLA");
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return Backend::XLA;
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default:
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AT_ERROR("Unknown device type");
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}
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}
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TensorOptions options(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, const c10::optional<Device>& device=c10::nullopt) {
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auto options = TensorOptions(scalar_type)
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.device(computeDeviceType(dispatch_key))
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.layout(layout_from_backend(dispatchKeyToBackend(dispatch_key)));
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if (device.has_value()) {
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return options.device(device);
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}
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return options;
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}
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void maybe_initialize_cuda(c10::DispatchKey dispatch_key) {
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if (backendToDeviceType(dispatchKeyToBackend(dispatch_key)) == kCUDA) {
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torch::utils::cuda_lazy_init();
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}
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}
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void maybe_initialize_cuda(const Device device) {
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if (device.is_cuda()) {
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torch::utils::cuda_lazy_init();
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}
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}
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Tensor dispatch_zeros(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, const optional<Device>& device, IntArrayRef sizes) {
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maybe_initialize_cuda(dispatch_key);
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pybind11::gil_scoped_release no_gil;
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return torch::zeros(sizes, options(dispatch_key, scalar_type, device));
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}
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Tensor dispatch_ones(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, const optional<Device>& device, IntArrayRef sizes) {
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maybe_initialize_cuda(dispatch_key);
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pybind11::gil_scoped_release no_gil;
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return torch::ones(sizes, options(dispatch_key, scalar_type, device));
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}
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Tensor dispatch_full(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, Scalar fill_value, const optional<Device>& device, IntArrayRef sizes) {
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maybe_initialize_cuda(dispatch_key);
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pybind11::gil_scoped_release no_gil;
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return torch::full(sizes, fill_value, options(dispatch_key, scalar_type, device));
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}
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Tensor new_with_sizes(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, const optional<Device>& device, IntArrayRef sizes) {
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maybe_initialize_cuda(dispatch_key);
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pybind11::gil_scoped_release no_gil;
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return torch::empty(sizes, options(dispatch_key, scalar_type, device));
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}
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Tensor new_with_storage(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, Storage storage) {
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auto tensor = at::empty({}, options(dispatch_key, scalar_type));
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tensor.set_(std::move(storage));
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return tensor;
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}
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Tensor new_with_tensor(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, const Tensor& other) {
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if (legacyExtractDispatchKey(other.key_set()) != dispatch_key) {
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// In temporary expression lifetime we trust
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throw TypeError("expected %s (got %s)", toString(dispatch_key), toString(other.key_set()).c_str());
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}
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if (other.scalar_type() != scalar_type) {
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throw TypeError("expected %s (got %s)", toString(scalar_type), toString(other.scalar_type()));
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}
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return other.slice();
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}
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std::vector<int64_t> compute_sizes(PyObject* seq) {
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std::vector<int64_t> sizes;
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THPObjectPtr handle;
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while (PySequence_Check(seq)) {
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auto length = PySequence_Length(seq);
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if (length < 0) throw python_error();
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sizes.push_back(length);
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if (sizes.size() > MAX_DIMS) {
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throw ValueError("too many dimensions '%s'", Py_TYPE(seq)->tp_name);
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}
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if (length == 0) break;
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handle = THPObjectPtr(PySequence_GetItem(seq, 0));
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if (!handle) {
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throw ValueError("could not determine the shape of object type '%s'", Py_TYPE(seq)->tp_name);
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}
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seq = handle.get();
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}
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return sizes;
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}
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ScalarType infer_scalar_type(PyObject *obj) {
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#ifdef USE_NUMPY
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if (PyArray_Check(obj)) {
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return numpy_dtype_to_aten(PyArray_TYPE((PyArrayObject*)obj));
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}
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if (PyArray_CheckScalar(obj)) {
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THPObjectPtr arr(PyArray_FromScalar(obj, nullptr));
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return numpy_dtype_to_aten(PyArray_TYPE((PyArrayObject*) arr.get()));
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}
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#endif
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if (PyFloat_Check(obj)) {
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// this is always guaranteed to be a floating-point type, and makes it more
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// convenient to write e.g. torch.tensor(0.) than torch.tensor(0., dtype=torch.Tensor.dtype).
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return torch::tensors::get_default_scalar_type();
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}
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if (THPUtils_checkLong(obj)) {
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return ScalarType::Long;
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}
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if (PyBool_Check(obj)) {
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return ScalarType::Bool;
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}
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if (PyComplex_Check(obj)) {
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switch (torch::tensors::get_default_scalar_type()) {
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case ScalarType::Float: return ScalarType::ComplexFloat;
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case ScalarType::Double: return ScalarType::ComplexDouble;
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default: TORCH_CHECK(false, "invalid default scalar type for complex");
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}
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}
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if (THPVariable_Check(obj)) {
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auto var = reinterpret_cast<THPVariable*>(obj)->cdata;
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return var.scalar_type();
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}
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if (THPUtils_checkString(obj)) {
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throw TypeError("new(): invalid data type '%s'", Py_TYPE(obj)->tp_name);
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}
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if (PySequence_Check(obj)) {
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c10::optional<ScalarType> scalarType;
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auto length = PySequence_Length(obj);
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if (length < 0) throw python_error();
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// match NumPy semantics, except use default tensor type instead of double.
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if (length == 0) return torch::tensors::get_default_scalar_type();
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for (int i = 0; i < length; ++i) {
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THPObjectPtr handle(PySequence_GetItem(obj, i));
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if (!handle) throw python_error();
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auto cur_item = handle.get();
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if (cur_item == obj) throw TypeError("new(): self-referential lists are incompatible");
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ScalarType item_scalarType = infer_scalar_type(cur_item);
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scalarType = (scalarType) ?
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at::promoteTypes(*scalarType, item_scalarType) : item_scalarType;
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if (scalarType == ScalarType::Double) {
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// this won't change (unless we hit undefined, but that will fail later).
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return *scalarType;
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}
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}
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return *scalarType;
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}
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AT_ERROR("Could not infer dtype of ", Py_TYPE(obj)->tp_name);
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}
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void recursive_store(char* data, IntArrayRef sizes, IntArrayRef strides, int64_t dim,
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ScalarType scalarType, int elementSize, PyObject* obj) {
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int64_t ndim = sizes.size();
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if (dim == ndim) {
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torch::utils::store_scalar(data, scalarType, obj);
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return;
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}
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auto n = sizes[dim];
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auto seq = THPObjectPtr(PySequence_Fast(obj, "not a sequence"));
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if (!seq) throw python_error();
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auto seq_size = PySequence_Fast_GET_SIZE(seq.get());
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if (seq_size != n) {
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throw ValueError("expected sequence of length %lld at dim %lld (got %lld)",
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(long long)n, (long long)dim, (long long)seq_size);
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}
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PyObject** items = PySequence_Fast_ITEMS(seq.get());
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for (int64_t i = 0; i < n; i++) {
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recursive_store(data, sizes, strides, dim + 1, scalarType, elementSize, items[i]);
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data += strides[dim] * elementSize;
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}
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}
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Tensor internal_new_from_data(
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c10::DispatchKey dispatch_key,
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at::ScalarType scalar_type,
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c10::optional<Device> device_opt,
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PyObject* data,
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bool copy_variables,
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bool copy_numpy,
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bool type_inference,
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bool pin_memory = false) {
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if (THPUtils_checkString(data)) {
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throw TypeError("new(): invalid data type '%s'", Py_TYPE(data)->tp_name);
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}
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if (THPVariable_Check(data)) {
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TORCH_CHECK(!pin_memory, "Can't pin tensor constructed from a variable");
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auto var = reinterpret_cast<THPVariable*>(data)->cdata;
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if (copy_variables) {
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var = var.detach();
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}
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// infer the scalar type and device type; it's not expected to infer the layout since these constructors
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// are defined per-layout-type (e.g. tensor vs sparse_coo_tensor).
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const auto& inferred_scalar_type = type_inference ? var.scalar_type() : scalar_type;
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auto device = device_opt.has_value() ? *device_opt : (type_inference ? var.device() : at::Device(computeDeviceType(dispatch_key)));
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pybind11::gil_scoped_release no_gil;
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maybe_initialize_cuda(device);
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return var.to(device, inferred_scalar_type, /*non_blocking=*/false, /*copy=*/copy_variables);
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}
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#ifdef USE_NUMPY
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if (PyObject_HasAttrString(data, "__cuda_array_interface__")) {
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TORCH_CHECK(!pin_memory, "Can't pin tensor constructed from __cuda_array_interface__");
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auto tensor = tensor_from_cuda_array_interface(data);
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const auto& inferred_scalar_type = type_inference ? tensor.scalar_type() : scalar_type;
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auto device = device_opt.has_value() ? *device_opt : at::Device(computeDeviceType(dispatch_key));
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pybind11::gil_scoped_release no_gil;
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maybe_initialize_cuda(device);
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return tensor.to(device, inferred_scalar_type, /*non_blocking=*/false, /*copy=*/copy_numpy);
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}
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if (PyArray_Check(data)) {
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TORCH_CHECK(!pin_memory, "Can't pin tensor constructed from numpy");
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auto tensor = tensor_from_numpy(data);
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const auto& inferred_scalar_type = type_inference ? tensor.scalar_type() : scalar_type;
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auto device = device_opt.has_value() ? *device_opt : at::Device(computeDeviceType(dispatch_key));
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pybind11::gil_scoped_release no_gil;
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maybe_initialize_cuda(device);
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return tensor.to(device, inferred_scalar_type, /*non_blocking=*/false, /*copy=*/copy_numpy);
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}
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#endif
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auto sizes = compute_sizes(data);
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ScalarType inferred_scalar_type = type_inference ? infer_scalar_type(data) : scalar_type;
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// This exists to prevent us from tracing the call to empty(). The actual
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// autograd code doesn't really matter, because requires_grad is always false
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// here.
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Tensor tensor;
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{
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at::AutoNonVariableTypeMode guard;
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tensor = at::empty(sizes, at::initialTensorOptions().dtype(inferred_scalar_type).pinned_memory(pin_memory));
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recursive_store(
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(char*)tensor.data_ptr(), tensor.sizes(), tensor.strides(), 0,
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inferred_scalar_type, tensor.dtype().itemsize(), data);
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}
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auto device = device_opt.has_value() ? *device_opt : at::Device(computeDeviceType(dispatch_key));
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pybind11::gil_scoped_release no_gil;
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maybe_initialize_cuda(device);
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// However, it is VERY important that we trace the to() call here (even
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// though the reason this is important is a hack). Without *some* factory
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// function call that is traced at construction time, we will consider
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// a tensor constant as originating from "outside" the trace, and if you
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// try to return it directly we will fail with the error saying no
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// "no observable data dependence". In an ideal world, we wouldn't trace
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// a to() call but I need to think harder about what exactly we should trace
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// in this case.
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return tensor.to(device, inferred_scalar_type, /*non_blocking=*/false, /*copy=*/false);
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}
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Tensor new_from_data_copy(
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c10::DispatchKey dispatch_key,
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at::ScalarType scalar_type,
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c10::optional<Device> device,
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PyObject* data) {
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return internal_new_from_data(dispatch_key, scalar_type, std::move(device), data, true, true, false);
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}
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Tensor legacy_new_from_sequence(
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c10::DispatchKey dispatch_key,
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at::ScalarType scalar_type,
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c10::optional<Device> device,
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PyObject* data) {
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if (!PySequence_Check(data)) {
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throw TypeError("new(): data must be a sequence (got %s)", Py_TYPE(data)->tp_name);
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}
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return internal_new_from_data(dispatch_key, scalar_type, std::move(device), data, false, false, false);
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}
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// "base" here refers to the Tensor type on which the function was invoked, e.g.:
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// in x.new(y), 'x' is the base.
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void check_base_legacy_new(c10::DispatchKey dispatch_key, at::Layout expected_layout) {
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if (expected_layout == c10::kStrided) {
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TORCH_CHECK(dispatch_key == c10::DispatchKey::CPUTensorId
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|| dispatch_key == c10::DispatchKey::CUDATensorId
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|| dispatch_key == c10::DispatchKey::HIPTensorId
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|| dispatch_key == c10::XLATensorId(),
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"new(): expected DispatchKey: ", c10::DispatchKey::CPUTensorId,
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" or ", c10::DispatchKey::CUDATensorId,
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" or ", c10::DispatchKey::HIPTensorId,
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" or ", c10::DispatchKey::XLATensorId,
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" but got: ", dispatch_key);
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} else if(expected_layout == c10::kSparse) {
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// NOTE: no sparse XLA
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TORCH_CHECK(dispatch_key == c10::DispatchKey::SparseCPUTensorId
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|| dispatch_key == c10::DispatchKey::SparseCUDATensorId
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|| dispatch_key == c10::DispatchKey::SparseHIPTensorId,
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"new(): expected DispatchKey: ", c10::DispatchKey::SparseCPUTensorId,
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" or ", c10::DispatchKey::SparseCUDATensorId,
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" or ", c10::DispatchKey::SparseHIPTensorId,
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" but got: ", dispatch_key);
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} else {
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TORCH_INTERNAL_ASSERT(false, "unexpected layout");
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}
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}
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void check_legacy_ctor_device(c10::DispatchKey dispatch_key, c10::optional<Device> device) {
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if (device.has_value()) {
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TORCH_CHECK(computeDeviceType(dispatch_key) == device.value().type(),
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"legacy constructor for device type: ", computeDeviceType(dispatch_key),
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" was passed device type: ", device.value().type(),
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", but device type must be: ", computeDeviceType(dispatch_key));
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}
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}
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Tensor legacy_sparse_tensor_ctor(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, PyObject* args, PyObject* kwargs) {
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static PythonArgParser parser({
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"new(*, Device? device=None)",
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"new(*, int64_t cdata)|hidden",
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"new(Tensor indices, Tensor values, *, Device? device=None)",
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"new(Tensor indices, Tensor values, IntArrayRef size, *, Device? device=None)",
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"new(IntArrayRef size, *, Device? device=None)",
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});
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ParsedArgs<4> parsed_args;
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auto r = parser.parse(args, kwargs, parsed_args);
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if (r.idx == 0) {
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auto deviceOptional = r.deviceOptional(0);
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check_legacy_ctor_device(dispatch_key, deviceOptional);
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return at::empty({0}, options(dispatch_key, scalar_type, deviceOptional));
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} else if (r.idx == 1) {
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auto cdata = reinterpret_cast<void*>(r.toInt64(0));
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return at::unsafeTensorFromTH(cdata, true);
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} else if (r.idx == 2) {
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auto deviceOptional = r.deviceOptional(2);
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check_legacy_ctor_device(dispatch_key, deviceOptional);
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at::OptionalDeviceGuard device_guard(deviceOptional);
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return at::sparse_coo_tensor(r.tensor(0), r.tensor(1));
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} else if (r.idx == 3) {
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auto deviceOptional = r.deviceOptional(3);
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check_legacy_ctor_device(dispatch_key, deviceOptional);
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at::OptionalDeviceGuard device_guard(deviceOptional);
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return at::sparse_coo_tensor(r.tensor(0), r.tensor(1), r.intlist(2));
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} else if (r.idx == 4) {
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PyObject* arg = r.pyobject(0);
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auto deviceOptional = r.deviceOptional(1);
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check_legacy_ctor_device(dispatch_key, deviceOptional);
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if (!THPSize_Check(arg) && PyTuple_GET_SIZE(args) >= 1 && arg == PyTuple_GET_ITEM(args, 0)) {
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// new(sequence) binds to this signature but should be treated differently
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// unless the sequences is a torch.Size
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throw TypeError("torch.SparseTensor(sequence) only accepts sizes. Please use torch.sparse_coo_tensor() " \
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"or construct a strided tensor and convert it to sparse via to_sparse.");
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}
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return new_with_sizes(dispatch_key, scalar_type, r.deviceOptional(1), r.intlist(0));
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}
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throw std::runtime_error("new(): invalid arguments");
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}
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Tensor legacy_sparse_tensor_new(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, PyObject* args, PyObject* kwargs) {
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static PythonArgParser parser({
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"new(*, Device? device=None)",
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"new(*, int64_t cdata)|hidden",
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"new(Tensor indices, Tensor values, *, Device? device=None)",
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"new(Tensor indices, Tensor values, IntArrayRef size, *, Device? device=None)",
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|
"new(IntArrayRef size, *, Device? device=None)",
|
|
});
|
|
check_base_legacy_new(dispatch_key, c10::kSparse);
|
|
ParsedArgs<5> parsed_args;
|
|
auto r = parser.parse(args, kwargs, parsed_args);
|
|
if (r.idx == 0) {
|
|
auto deviceOptional = r.deviceOptional(0);
|
|
check_legacy_ctor_device(dispatch_key, deviceOptional);
|
|
at::OptionalDeviceGuard device_guard(deviceOptional);
|
|
return at::empty({0}, options(dispatch_key, scalar_type));
|
|
} else if (r.idx == 1) {
|
|
auto cdata = reinterpret_cast<void*>(r.toInt64(0));
|
|
return at::unsafeTensorFromTH(cdata, true);
|
|
} else if (r.idx == 2) {
|
|
// Note: this signature doesn't have a dtype, even though it has a device; it probably shouldn't
|
|
// have a device (we should infer it).
|
|
auto deviceOptional = r.deviceOptional(2);
|
|
check_legacy_ctor_device(dispatch_key, deviceOptional);
|
|
at::OptionalDeviceGuard device_guard(deviceOptional);
|
|
return at::sparse_coo_tensor(r.tensor(0), r.tensor(1));
|
|
} else if (r.idx == 3) {
|
|
// Note: this signature doesn't have a dtype, even though it has a device; it probably shouldn't
|
|
// have a device (we should infer it).
|
|
auto deviceOptional = r.deviceOptional(3);
|
|
check_legacy_ctor_device(dispatch_key, deviceOptional);
|
|
at::OptionalDeviceGuard device_guard(deviceOptional);
|
|
return at::sparse_coo_tensor(r.tensor(0), r.tensor(1), r.intlist(2));
|
|
} else if (r.idx == 4) {
|
|
PyObject* arg = r.pyobject(0);
|
|
auto deviceOptional = r.deviceOptional(1);
|
|
check_legacy_ctor_device(dispatch_key, deviceOptional);
|
|
if (!THPSize_Check(arg) && PyTuple_GET_SIZE(args) >= 1 && arg == PyTuple_GET_ITEM(args, 0)) {
|
|
// new(sequence) binds to this signature but should be treated differently
|
|
// unless the sequences is a torch.Size
|
|
throw TypeError("SparseTensor.new(sequence) only accepts sizes. Please use torch.sparse_coo_tensor() " \
|
|
"or construct a strided tensor and convert it to sparse via to_sparse.");
|
|
}
|
|
return new_with_sizes(dispatch_key, scalar_type, r.deviceOptional(1), r.intlist(0));
|
|
}
|
|
throw std::runtime_error("new(): invalid arguments");
|
|
}
|
|
|
|
// NB: device_idx here is NOT a DeviceIndex, but index into PythonArgs
|
|
c10::DispatchKey typeIdWithDefault(PythonArgs& r, int64_t device_idx, c10::DispatchKey dispatch_key) {
|
|
auto device_type = r.isNone(device_idx) ? computeDeviceType(dispatch_key) : r.device(device_idx).type();
|
|
return backendToDispatchKey(backendToBackendOfDeviceType(dispatchKeyToBackend(dispatch_key), device_type));
|
|
}
|
|
|
|
// NB: device_idx here is NOT a DeviceIndex, but index into PythonArgs
|
|
c10::DispatchKey denseTypeIdWithDefault(PythonArgs& r, int64_t device_idx, c10::DispatchKey dispatch_key) {
|
|
auto device_type = r.isNone(device_idx) ? computeDeviceType(dispatch_key) : r.device(device_idx).type();
|
|
return backendToDispatchKey(toDense(backendToBackendOfDeviceType(dispatchKeyToBackend(dispatch_key), device_type)));
|
|
}
|
|
} // namespace
|
|
|
|
Tensor legacy_tensor_ctor(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, PyObject* args, PyObject* kwargs) {
|
|
static PythonArgParser parser({
|
|
"new(*, Device? device=None)",
|
|
"new(Storage storage)",
|
|
"new(*, int64_t cdata)|hidden",
|
|
"new(Tensor other)",
|
|
"new(IntArrayRef size, *, Device? device=None)",
|
|
"new(PyObject* data, *, Device? device=None)",
|
|
});
|
|
|
|
if (isSparse(dispatchKeyToBackend(dispatch_key))) {
|
|
return legacy_sparse_tensor_ctor(dispatch_key, scalar_type, args, kwargs);
|
|
}
|
|
|
|
ParsedArgs<2> parsed_args;
|
|
auto r = parser.parse(args, kwargs, parsed_args);
|
|
if (r.idx == 0) {
|
|
auto deviceOptional = r.deviceOptional(0);
|
|
check_legacy_ctor_device(dispatch_key, deviceOptional);
|
|
at::OptionalDeviceGuard device_guard(deviceOptional);
|
|
return at::empty({0}, options(dispatch_key, scalar_type));
|
|
} else if (r.idx == 1) {
|
|
return new_with_storage(dispatch_key, scalar_type, r.storage(0));
|
|
} else if (r.idx == 2) {
|
|
auto cdata = reinterpret_cast<void*>(r.toInt64(0));
|
|
return at::unsafeTensorFromTH(cdata, true);
|
|
} else if (r.idx == 3) {
|
|
return new_with_tensor(dispatch_key, scalar_type, r.tensor(0));
|
|
} else if (r.idx == 4) {
|
|
PyObject* arg = r.pyobject(0);
|
|
auto deviceOptional = r.deviceOptional(1);
|
|
check_legacy_ctor_device(dispatch_key, deviceOptional);
|
|
if (!THPSize_Check(arg) && PyTuple_GET_SIZE(args) >= 1 && arg == PyTuple_GET_ITEM(args, 0)) {
|
|
// new(sequence) binds to this signature but should be treated differently
|
|
// unless the sequences is a torch.Size
|
|
return legacy_new_from_sequence(dispatch_key, scalar_type, deviceOptional, r.pyobject(0));
|
|
}
|
|
return new_with_sizes(dispatch_key, scalar_type, r.deviceOptional(1), r.intlist(0));
|
|
} else if (r.idx == 5) {
|
|
auto deviceOptional = r.deviceOptional(1);
|
|
check_legacy_ctor_device(dispatch_key, deviceOptional);
|
|
return legacy_new_from_sequence(dispatch_key, scalar_type, deviceOptional, r.pyobject(0));
|
|
}
|
|
throw std::runtime_error("new(): invalid arguments");
|
|
}
|
|
|
|
Tensor legacy_tensor_new(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, PyObject* args, PyObject* kwargs) {
|
|
static PythonArgParser parser({
|
|
"new(*, Device? device=None)",
|
|
"new(Storage storage)",
|
|
"new(*, int64_t cdata)|hidden",
|
|
"new(Tensor other)", // this doesn't have a dtype/device because it creates an alias.
|
|
"new(IntArrayRef size, *, Device? device=None)",
|
|
"new(PyObject* data, *, Device? device=None)",
|
|
});
|
|
|
|
if (isSparse(dispatchKeyToBackend(dispatch_key))) {
|
|
return legacy_sparse_tensor_new(dispatch_key, scalar_type, args, kwargs);
|
|
}
|
|
|
|
check_base_legacy_new(dispatch_key, c10::kStrided);
|
|
ParsedArgs<3> parsed_args;
|
|
auto r = parser.parse(args, kwargs, parsed_args);
|
|
if (r.idx == 0) {
|
|
auto deviceOptional = r.deviceOptional(0);
|
|
check_legacy_ctor_device(dispatch_key, deviceOptional);
|
|
at::OptionalDeviceGuard device_guard(deviceOptional);
|
|
return at::empty({0}, options(dispatch_key, scalar_type));
|
|
} else if (r.idx == 1) {
|
|
return new_with_storage(dispatch_key, scalar_type, r.storage(0));
|
|
} else if (r.idx == 2) {
|
|
auto cdata = reinterpret_cast<void*>(r.toInt64(0));
|
|
return at::unsafeTensorFromTH(cdata, true);
|
|
} else if (r.idx == 3) {
|
|
return new_with_tensor(dispatch_key, scalar_type, r.tensor(0));
|
|
} else if (r.idx == 4) {
|
|
PyObject* arg = r.pyobject(0);
|
|
auto deviceOptional = r.deviceOptional(1);
|
|
check_legacy_ctor_device(dispatch_key, deviceOptional);
|
|
if (!THPSize_Check(arg) && PyTuple_GET_SIZE(args) >= 1 && arg == PyTuple_GET_ITEM(args, 0)) {
|
|
// new(sequence) binds to this signature but should be treated differently
|
|
// unless the sequences is a torch.Size
|
|
return legacy_new_from_sequence(dispatch_key, scalar_type, deviceOptional, r.pyobject(0));
|
|
}
|
|
return new_with_sizes(dispatch_key, scalar_type, r.deviceOptional(1), r.intlist(0));
|
|
} else if (r.idx == 5) {
|
|
auto deviceOptional = r.deviceOptional(1);
|
|
check_legacy_ctor_device(dispatch_key, deviceOptional);
|
|
return legacy_new_from_sequence(dispatch_key, scalar_type, r.deviceOptional(1), r.pyobject(0));
|
|
}
|
|
throw std::runtime_error("new(): invalid arguments");
|
|
}
|
|
|
|
Tensor indexing_tensor_from_data(
|
|
c10::DispatchKey dispatch_key,
|
|
at::ScalarType scalar_type,
|
|
c10::optional<Device> device,
|
|
PyObject* data) {
|
|
// Specific to tensor indexing, converts an indexing list to an
|
|
// indexing tensor (type Byte or Long)
|
|
ScalarType inferred_scalar_type = infer_scalar_type(data);
|
|
if (inferred_scalar_type == ScalarType::Byte || inferred_scalar_type == ScalarType::Bool) {
|
|
return internal_new_from_data(dispatch_key, inferred_scalar_type, std::move(device), data, false, false, false);
|
|
} else {
|
|
return internal_new_from_data(dispatch_key, scalar_type, std::move(device), data, false, false, false);
|
|
}
|
|
}
|
|
|
|
Tensor sparse_coo_tensor_ctor(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, PyObject* args, PyObject* kwargs) {
|
|
static PythonArgParser parser({
|
|
"sparse_coo_tensor(PyObject* indices, PyObject* values, *, ScalarType dtype=None, Device? device=None, bool requires_grad=False)",
|
|
"sparse_coo_tensor(PyObject* indices, PyObject* values, IntArrayRef size, *, ScalarType dtype=None, Device? device=None, bool requires_grad=False)",
|
|
"sparse_coo_tensor(IntArrayRef size, *, ScalarType dtype=None, Device? device=None, bool requires_grad=False)",
|
|
});
|
|
|
|
ParsedArgs<6> parsed_args;
|
|
auto r = parser.parse(args, kwargs, parsed_args);
|
|
if (r.idx == 0) {
|
|
bool type_inference = r.isNone(2);
|
|
const auto inferred_dispatch_key = denseTypeIdWithDefault(r, 3, dispatch_key);
|
|
const auto inferred_scalar_type = r.scalartypeWithDefault(2, scalar_type);
|
|
at::OptionalDeviceGuard device_guard(r.deviceOptional(3));
|
|
// if no dtype provided, infer type based on value type.
|
|
Tensor values = internal_new_from_data(inferred_dispatch_key, inferred_scalar_type, r.deviceOptional(3), r.pyobject(1), false, true, type_inference);
|
|
Tensor indices = internal_new_from_data(legacyExtractDispatchKey(values.key_set()), kLong, r.deviceOptional(3), r.pyobject(0), false, true, false);
|
|
return at::sparse_coo_tensor(indices, values, values.options().layout(at::kSparse)).set_requires_grad(r.toBool(4));
|
|
} else if (r.idx == 1) {
|
|
bool type_inference = r.isNone(3);
|
|
const auto inferred_dispatch_key = denseTypeIdWithDefault(r, 4, dispatch_key);
|
|
const auto inferred_scalar_type = r.scalartypeWithDefault(3, scalar_type);
|
|
at::OptionalDeviceGuard device_guard(r.deviceOptional(4));
|
|
Tensor values = internal_new_from_data(inferred_dispatch_key, inferred_scalar_type, r.deviceOptional(4), r.pyobject(1), false, true, type_inference);
|
|
Tensor indices = internal_new_from_data(legacyExtractDispatchKey(values.key_set()), kLong, r.deviceOptional(4), r.pyobject(0), false, true, false);
|
|
return at::sparse_coo_tensor(indices, values, r.intlist(2), values.options().layout(at::kSparse)).set_requires_grad(r.toBool(5));
|
|
} else if (r.idx == 2) {
|
|
const auto inferred_dispatch_key = typeIdWithDefault(r, 2, dispatch_key);
|
|
const auto inferred_scalar_type = r.scalartypeWithDefault(1, scalar_type);
|
|
at::OptionalDeviceGuard device_guard(r.deviceOptional(2));
|
|
return at::sparse_coo_tensor(r.intlist(0), options(inferred_dispatch_key, inferred_scalar_type).layout(at::kSparse)).set_requires_grad(r.toBool(3));
|
|
}
|
|
throw std::runtime_error("sparse_coo_tensor(): invalid arguments");
|
|
}
|
|
|
|
Tensor tensor_ctor(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, PyObject* args, PyObject* kwargs) {
|
|
static PythonArgParser parser({
|
|
"tensor(PyObject* data, *, ScalarType dtype=None, Device? device=None, bool pin_memory=False, bool requires_grad=False, DimnameList? names=None)",
|
|
});
|
|
|
|
constexpr int ctor_num_args = 6;
|
|
ParsedArgs<ctor_num_args> parsed_args;
|
|
auto r = parser.parse(args, kwargs, parsed_args);
|
|
if (r.idx == 0) {
|
|
PyObject* data = r.pyobject(0);
|
|
if (THPVariable_Check(data)) {
|
|
PyErr_WarnEx(PyExc_UserWarning,
|
|
"To copy construct from a tensor, it is recommended to use sourceTensor.clone().detach() "
|
|
"or sourceTensor.clone().detach().requires_grad_(True), rather than torch.tensor(sourceTensor).", 1);
|
|
}
|
|
|
|
bool type_inference = r.isNone(1);
|
|
bool pin_memory = r.toBool(3);
|
|
bool args_requires_grad = r.toBool(4);
|
|
auto new_tensor = internal_new_from_data(
|
|
typeIdWithDefault(r, 2, dispatch_key),
|
|
r.scalartypeWithDefault(1, scalar_type),
|
|
r.deviceOptional(2),
|
|
data,
|
|
true,
|
|
true,
|
|
type_inference,
|
|
pin_memory);
|
|
auto names = r.toDimnameListOptional(5);
|
|
if (names) {
|
|
at::namedinference::propagate_names(new_tensor, *names, /*validate_names=*/true);
|
|
}
|
|
new_tensor.detach_(); // ensure new_tensor a leaf node
|
|
new_tensor.set_requires_grad(args_requires_grad);
|
|
return new_tensor;
|
|
}
|
|
throw std::runtime_error("tensor(): invalid arguments");
|
|
}
|
|
|
|
Tensor as_tensor(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, PyObject* args, PyObject* kwargs) {
|
|
// TODO: add requires_grad once we decide on semantics for sharing data.
|
|
static PythonArgParser parser({
|
|
"as_tensor(PyObject* data, *, ScalarType dtype=None, Device? device=None)",
|
|
});
|
|
|
|
ParsedArgs<3> parsed_args;
|
|
auto r = parser.parse(args, kwargs, parsed_args);
|
|
if (r.idx == 0) {
|
|
bool type_inference = r.isNone(1);
|
|
return internal_new_from_data(
|
|
typeIdWithDefault(r, 2, dispatch_key),
|
|
r.scalartypeWithDefault(1, scalar_type),
|
|
r.deviceOptional(2),
|
|
r.pyobject(0),
|
|
false,
|
|
false,
|
|
type_inference);
|
|
}
|
|
throw std::runtime_error("tensor(): invalid arguments");
|
|
}
|
|
|
|
Tensor new_tensor(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, PyObject* args, PyObject* kwargs) {
|
|
static PythonArgParser parser({
|
|
"new_tensor(PyObject* data, *, ScalarType dtype=None, Device? device=None, bool requires_grad=False)",
|
|
});
|
|
|
|
ParsedArgs<4> parsed_args;
|
|
auto r = parser.parse(args, kwargs, parsed_args);
|
|
if (r.idx == 0) {
|
|
PyObject* data = r.pyobject(0);
|
|
if (THPVariable_Check(data)) {
|
|
PyErr_WarnEx(PyExc_UserWarning,
|
|
"To copy construct from a tensor, it is recommended to use sourceTensor.clone().detach() "
|
|
"or sourceTensor.clone().detach().requires_grad_(True), rather than tensor.new_tensor(sourceTensor).", 1);
|
|
}
|
|
|
|
bool args_requires_grad = r.toBool(3);
|
|
auto new_tensor = new_from_data_copy(
|
|
typeIdWithDefault(r, 2, dispatch_key),
|
|
r.scalartypeWithDefault(1, scalar_type),
|
|
r.deviceOptional(2),
|
|
data);
|
|
new_tensor.detach_(); // ensure new_tensor a leaf node
|
|
new_tensor.set_requires_grad(args_requires_grad);
|
|
return new_tensor;
|
|
}
|
|
throw std::runtime_error("new_tensor(): invalid arguments");
|
|
}
|
|
|
|
Tensor new_ones(c10::DispatchKey dispatch_key, at::ScalarType scalar_type, PyObject* args, PyObject* kwargs) {
|
|
static PythonArgParser parser({
|
|
"new_ones(IntArrayRef size, *, ScalarType dtype=None, Device? device=None, bool requires_grad=False)",
|
|
}, /*traceable=*/true);
|
|
|
|
ParsedArgs<4> parsed_args;
|
|
auto r = parser.parse(args, kwargs, parsed_args);
|
|
if (r.idx == 0) {
|
|
const auto actual_dispatch_key = typeIdWithDefault(r, 2, dispatch_key);
|
|
const auto actual_scalar_type = r.scalartypeWithDefault(1, scalar_type);
|
|
return dispatch_ones(actual_dispatch_key, actual_scalar_type, r.deviceOptional(2), r.intlist(0)).set_requires_grad(r.toBool(3));
|
|
}
|
|
throw std::runtime_error("new_ones(): invalid arguments");
|
|
}
|
|
|
|
}} // namespace torch::utils
|