File: pybind.cpp

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#include <torch/csrc/inductor/aoti_runner/model_container_runner_cpu.h>
#ifdef USE_CUDA
#include <torch/csrc/inductor/aoti_runner/model_container_runner_cuda.h>
#endif
#ifdef USE_XPU
#include <torch/csrc/inductor/aoti_runner/model_container_runner_xpu.h>
#endif
#include <torch/csrc/inductor/aoti_torch/tensor_converter.h>
#include <torch/csrc/inductor/aoti_torch/utils.h>

#include <torch/csrc/utils/pybind.h>

namespace torch::inductor {

void initAOTIRunnerBindings(PyObject* module) {
  auto rootModule = py::handle(module).cast<py::module>();
  auto m = rootModule.def_submodule("_aoti");

  py::class_<AOTIModelContainerRunnerCpu>(m, "AOTIModelContainerRunnerCpu")
      .def(py::init<const std::string&, int>())
      .def(
          "run",
          &AOTIModelContainerRunnerCpu::run,
          py::arg("inputs"),
          py::arg("stream_handle") = nullptr)
      .def("get_call_spec", &AOTIModelContainerRunnerCpu::get_call_spec)
      .def(
          "get_constant_names_to_original_fqns",
          &AOTIModelContainerRunnerCpu::getConstantNamesToOriginalFQNs)
      .def(
          "get_constant_names_to_dtypes",
          &AOTIModelContainerRunnerCpu::getConstantNamesToDtypes)
      .def(
          "update_constant_buffer",
          static_cast<void (AOTIModelContainerRunnerCpu::*)(
              std::unordered_map<std::string, at::Tensor>&, bool, bool)>(
              &AOTIModelContainerRunnerCpu::update_constant_buffer));

#ifdef USE_CUDA
  py::class_<AOTIModelContainerRunnerCuda>(m, "AOTIModelContainerRunnerCuda")
      .def(py::init<const std::string&, int>())
      .def(py::init<const std::string&, int, const std::string&>())
      .def(py::init<
           const std::string&,
           int,
           const std::string&,
           const std::string&>())
      .def(
          "run",
          &AOTIModelContainerRunnerCuda::run,
          py::arg("inputs"),
          py::arg("stream_handle") = nullptr)
      .def("get_call_spec", &AOTIModelContainerRunnerCuda::get_call_spec)
      .def(
          "get_constant_names_to_original_fqns",
          &AOTIModelContainerRunnerCuda::getConstantNamesToOriginalFQNs)
      .def(
          "get_constant_names_to_dtypes",
          &AOTIModelContainerRunnerCuda::getConstantNamesToDtypes)
      .def(
          "update_constant_buffer",
          static_cast<void (AOTIModelContainerRunnerCuda::*)(
              std::unordered_map<std::string, at::Tensor>&, bool, bool)>(
              &AOTIModelContainerRunnerCuda::update_constant_buffer));
#endif
#ifdef USE_XPU
  py::class_<AOTIModelContainerRunnerXpu>(m, "AOTIModelContainerRunnerXpu")
      .def(py::init<const std::string&, int>())
      .def(py::init<const std::string&, int, const std::string&>())
      .def(py::init<
           const std::string&,
           int,
           const std::string&,
           const std::string&>())
      .def(
          "run",
          &AOTIModelContainerRunnerXpu::run,
          py::arg("inputs"),
          py::arg("stream_handle") = nullptr)
      .def("get_call_spec", &AOTIModelContainerRunnerXpu::get_call_spec)
      .def(
          "get_constant_names_to_original_fqns",
          &AOTIModelContainerRunnerXpu::getConstantNamesToOriginalFQNs)
      .def(
          "get_constant_names_to_dtypes",
          &AOTIModelContainerRunnerXpu::getConstantNamesToDtypes)
      .def(
          "update_constant_buffer",
          static_cast<void (AOTIModelContainerRunnerXpu::*)(
              std::unordered_map<std::string, at::Tensor>&, bool, bool)>(
              &AOTIModelContainerRunnerXpu::update_constant_buffer));

#endif

  m.def(
      "unsafe_alloc_void_ptrs_from_tensors",
      [](const std::vector<at::Tensor>& tensors) {
        std::vector<AtenTensorHandle> handles =
            torch::aot_inductor::unsafe_alloc_new_handles_from_tensors(tensors);
        std::vector<void*> result(
            reinterpret_cast<void**>(handles.data()),
            reinterpret_cast<void**>(handles.data()) + handles.size());
        return result;
      });
  m.def("unsafe_alloc_void_ptr_from_tensor", [](at::Tensor& tensor) {
    return reinterpret_cast<void*>(
        torch::aot_inductor::new_tensor_handle(std::move(tensor)));
  });
  m.def(
      "alloc_tensors_by_stealing_from_void_ptrs",
      [](std::vector<void*>& raw_handles) {
        return torch::aot_inductor::alloc_tensors_by_stealing_from_handles(
            reinterpret_cast<AtenTensorHandle*>(raw_handles.data()),
            raw_handles.size());
      });
  m.def("alloc_tensor_by_stealing_from_void_ptr", [](void* raw_handle) {
    return *torch::aot_inductor::tensor_handle_to_tensor_pointer(
        reinterpret_cast<AtenTensorHandle>(raw_handle));
  });
}
} // namespace torch::inductor