Program Listing for File tensor.cpp

Return to documentation for file (morpheus/_lib/src/objects/tensor.cpp)

Copy
Copied!
            

/* * 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/tensor.hpp" #include "morpheus/objects/dtype.hpp" #include "morpheus/objects/memory_descriptor.hpp" // for MemoryDescriptor #include "morpheus/objects/rmm_tensor.hpp" #include "morpheus/objects/tensor_object.hpp" #include "morpheus/utilities/tensor_util.hpp" // for TensorUtils::get_element_stride #include <cuda_runtime.h> // for cudaMemcpy, cudaMemcpyDeviceToHost #include <mrc/cuda/common.hpp> // for MRC_CHECK_CUDA #include <rmm/device_buffer.hpp> #include <memory> #include <string> #include <utility> // for move #include <vector> namespace morpheus { Tensor::Tensor(std::shared_ptr<rmm::device_buffer> buffer, std::string init_typestr, ShapeType init_shape, ShapeType init_strides, TensorSize init_offset) : m_device_buffer(std::move(buffer)), typestr(std::move(init_typestr)), shape(std::move(init_shape)), strides(std::move(init_strides)), m_offset(init_offset) {} void* Tensor::data() const { return static_cast<uint8_t*>(m_device_buffer->data()) + m_offset; } TensorSize Tensor::bytes_count() const { // temp just return without shape, size, offset, etc return m_device_buffer->size(); } std::vector<uint8_t> Tensor::get_host_data() const { std::vector<uint8_t> out_data; out_data.resize(this->bytes_count()); MRC_CHECK_CUDA(cudaMemcpy(&out_data[0], this->data(), this->bytes_count(), cudaMemcpyDeviceToHost)); return out_data; } auto Tensor::get_stream() const { return this->m_device_buffer->stream(); } TensorObject Tensor::create( std::shared_ptr<rmm::device_buffer> buffer, DType dtype, ShapeType shape, ShapeType strides, TensorSize offset) { auto md = std::make_shared<MemoryDescriptor>(buffer->stream(), buffer->memory_resource()); if (!strides.empty()) { strides = TensorUtils::get_element_stride<TensorIndex>(strides); } auto tensor = std::make_shared<RMMTensor>(buffer, offset, dtype, shape, strides); return {md, tensor}; } } // namespace morpheus

© Copyright 2023, NVIDIA. Last updated on Feb 2, 2024.