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/* * SPDX-FileCopyrightText: Copyright (c) 2021-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved. * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "morpheus/objects/wrapped_tensor.hpp" #include "morpheus/objects/tensor_object.hpp" // for TensorObject #include "morpheus/types.hpp" // for ShapeType #include "morpheus/utilities/cupy_util.hpp" #include <pybind11/cast.h> #include <pybind11/pytypes.h> #include <array> // needed for make_tuple #include <cstdint> // for uintptr_t #include <utility> #include <vector> // get_shape & get_stride return vectors namespace morpheus { /****** Component public implementations *******************/ /****** TensorObjectInterfaceProxy *************************/ pybind11::dict TensorObjectInterfaceProxy::cuda_array_interface(TensorObject& self) { // See https://numba.readthedocs.io/en/stable/cuda/cuda_array_interface.html pybind11::dict array_interface; pybind11::list shape_list; for (auto& idx : self.get_shape()) { shape_list.append(idx); } pybind11::list stride_list; for (auto& idx : self.get_stride()) { stride_list.append(idx * self.dtype_size()); } pybind11::int_ stream_val = self.stream(); array_interface["shape"] = pybind11::cast<pybind11::tuple>(shape_list); array_interface["typestr"] = self.get_numpy_typestr(); array_interface["stream"] = stream_val; array_interface["version"] = 3; if (self.is_compact() || self.get_stride().empty()) { array_interface["strides"] = pybind11::none(); } else { array_interface["strides"] = pybind11::cast<pybind11::tuple>(stride_list); } array_interface["data"] = pybind11::make_tuple((uintptr_t)self.data(), false); return array_interface; } pybind11::object TensorObjectInterfaceProxy::to_cupy(TensorObject& self) { return CupyUtil::tensor_to_cupy(self); } TensorObject TensorObjectInterfaceProxy::from_cupy(pybind11::object cupy_array) { return CupyUtil::cupy_to_tensor(std::move(cupy_array)); } } // namespace morpheus

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