Struct CupyUtil

Structure that encapsulates cupy utilities.

Public Types

using tensor_map_t = std::map<std::string, TensorObject>

using py_tensor_map_t = std::map<std::string, pybind11::object>

Public Static Functions

static pybind11::module_ get_cp()

Import and return the cupy module. Requires GIL to have already been aqcuired.

Returns

pybind11::module_

static bool is_cupy_array(pybind11::object test_obj)

Tests whether or not an object is an instance of cupy.ndarray

Parameters

test_obj – Python object to test

Returns

true The object is a cupy array

Returns

false The object is not a cupy array

static pybind11::object tensor_to_cupy(const TensorObject &tensor)

Convert a TensorObject to a CuPy array. Requires GIL to have already been aqcuired.

Parameters

tensor –

Returns

pybind11::object

static TensorObject cupy_to_tensor(pybind11::object cupy_array)

Convert a CuPy array into a TensorObject. Requires GIL to have already been aqcuired.

Parameters

cupy_array –

Returns

TensorObject

static tensor_map_t cupy_to_tensors(const py_tensor_map_t &cupy_tensors)

Convert a map of CuPy arrays into a map of TensorObjects. Requires GIL to have already been aqcuired.

Parameters

cupy_tensors –

Returns

tensor_map_t

static py_tensor_map_t tensors_to_cupy(const tensor_map_t &tensors)

Convert a map of TensorObjects into a map of CuPy arrays. Requires GIL to have already been aqcuired.

Parameters

tensors –

Returns

py_tensor_map_t