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Upgrade PyTorch version to 2.6.0, Add CUDA 12.6 Support and Update GA Workflows
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‎.github/workflows/build_macos.yml

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jobs:
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build-mac:
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name: "macOS 14.4.1 arm64 Xcode (Clang)"
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name: "macOS 14 arm64 Xcode (Clang)"
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runs-on: macos-14
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strategy:
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matrix:
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xcode: [14.3.1, 15.3]
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xcode: [15.3, 16.1]
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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- name: Set up CMake
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uses: jwlawson/actions-setup-cmake@v2
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with:
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cmake-version: '3.19.0'
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cmake-version: '3.28.6'
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- name: Set up Xcode
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uses: maxim-lobanov/setup-xcode@v1
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with:

‎.github/workflows/build_ubuntu.yml

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jobs:
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build-ubuntu:
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name: "Ubuntu 22.04 GCC"
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runs-on: ubuntu-22.04
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name: "Ubuntu 24.04 GCC"
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runs-on: ubuntu-24.04
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strategy:
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matrix:
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gcc: [11, 12, 13]
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gcc: [13, 14]
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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- name: Set up CMake
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uses: jwlawson/actions-setup-cmake@v2
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with:
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cmake-version: '3.19.0'
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cmake-version: '3.28.6'
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- name: Set up GCC
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uses: egor-tensin/setup-gcc@v1
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with:

‎.github/workflows/build_windows.yml

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strategy:
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matrix:
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config:
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- {
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name: Windows MSVC 2019,
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os: windows-2019,
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cmake: '3.19.0'
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}
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- {
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name: Windows MSVC 2022,
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os: windows-2022,
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cmake: '3.24.2'
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cmake: '3.28.6'
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}
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- {
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name: Windows MSVC 2025,
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os: windows-2025,
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cmake: '3.28.6'
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}
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steps:
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- name: Checkout

‎CMakeLists.txt

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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cmake_minimum_required(VERSION 3.28.6 FATAL_ERROR)
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project(pytorch-cpp VERSION 1.0.0 LANGUAGES CXX)
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@@ -7,7 +7,7 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
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option(DOWNLOAD_DATASETS "Automatically download required datasets at build-time." ON)
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option(CREATE_SCRIPTMODULES "Automatically create all required scriptmodule files at build-time (requires python3)." OFF)
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set(PYTORCH_VERSION "2.3.0")
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set(PYTORCH_VERSION "2.6.0")
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set(PYTORCH_MIN_VERSION "1.12.0")
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find_package(Torch QUIET PATHS "${CMAKE_SOURCE_DIR}/libtorch")

‎Dockerfile

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FROM conda AS conda-installs
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# Install pytorch for CPU and torchvision.
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ARG PYTORCH_VERSION=2.3.0
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ARG PYTORCH_VERSION=2.6.0
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ARG TORCHVISION_VERSION=0.18.0
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ENV NO_CUDA=1
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RUN conda install pytorch==${PYTORCH_VERSION} torchvision==${TORCHVISION_VERSION} cpuonly -y -c pytorch && conda clean -ya

‎README.md

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C++ Implementation of PyTorch Tutorials for Everyone
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<br />
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<img src="https://img.shields.io/github/license/prabhuomkar/pytorch-cpp">
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<img src="https://img.shields.io/badge/libtorch-2.3.0-ee4c2c">
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<img src="https://img.shields.io/badge/cmake-3.19-064f8d">
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<img src="https://img.shields.io/badge/libtorch-2.6.0-ee4c2c">
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<img src="https://img.shields.io/badge/cmake-3.28.6-064f8d">
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</p>
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| OS (Compiler)\\LibTorch | 2.3.0 |
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| OS (Compiler)\\LibTorch | 2.6.0 |
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| :--------------------- | :--------------------------------------------------------------------------------------------------- |
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| macOS (clang 11, 12, 13) | [![Status](https://github.com/prabhuomkar/pytorch-cpp/actions/workflows/build_macos.yml/badge.svg?branch=master)](https://github.com/prabhuomkar/pytorch-cpp/actions?query=workflow%3Aci-build-macos) |
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| Linux (gcc 9, 10, 11) | [![Status](https://github.com/prabhuomkar/pytorch-cpp/actions/workflows/build_ubuntu.yml/badge.svg?branch=master)](https://github.com/prabhuomkar/pytorch-cpp/actions?query=workflow%3Aci-build-ubuntu) |
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| Windows (msvc 2019, 2022) | [![Status](https://github.com/prabhuomkar/pytorch-cpp/actions/workflows/build_windows.yml/badge.svg?branch=master)](https://github.com/prabhuomkar/pytorch-cpp/actions?query=workflow%3Aci-build-windows) |
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| macOS (clang 15, 16) | [![Status](https://github.com/prabhuomkar/pytorch-cpp/actions/workflows/build_macos.yml/badge.svg?branch=master)](https://github.com/prabhuomkar/pytorch-cpp/actions?query=workflow%3Aci-build-macos) |
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| Linux (gcc 13, 14) | [![Status](https://github.com/prabhuomkar/pytorch-cpp/actions/workflows/build_ubuntu.yml/badge.svg?branch=master)](https://github.com/prabhuomkar/pytorch-cpp/actions?query=workflow%3Aci-build-ubuntu) |
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| Windows (msvc 2022, 2025) | [![Status](https://github.com/prabhuomkar/pytorch-cpp/actions/workflows/build_windows.yml/badge.svg?branch=master)](https://github.com/prabhuomkar/pytorch-cpp/actions?query=workflow%3Aci-build-windows) |
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## Table of Contents
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## Requirements
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1. [C++-17](http://www.cplusplus.com/doc/tutorial/introduction/) compatible compiler
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2. [CMake](https://cmake.org/download/) (minimum version 3.19)
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3. [LibTorch version >= 1.12.0 and <= 2.3.0](https://pytorch.org/cppdocs/installing.html)
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2. [CMake](https://cmake.org/download/) (minimum version 3.28.6)
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3. [LibTorch version >= 1.12.0 and <= 2.6.0](https://pytorch.org/cppdocs/installing.html)
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4. [Conda](https://docs.conda.io/projects/conda/en/latest/user-guide/install/download.html)
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| Option | Default | Description |
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| :------------- |:------------|-----:|
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| `-D CUDA_V=(11.8\|12.1\|none)` | `none` | Download LibTorch for a CUDA version (`none` = download CPU version). |
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| `-D CUDA_V=(11.8\|12.1\|12.6\|none)` | `none` | Download LibTorch for a CUDA version (`none` = download CPU version). |
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| `-D LIBTORCH_DOWNLOAD_BUILD_TYPE=(Release\|Debug)` | `Release` | Determines which libtorch build type version to download (only relevant on **Windows**).|
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| `-D DOWNLOAD_DATASETS=(OFF\|ON)` | `ON` | Download required datasets during build (only if they do not already exist in `pytorch-cpp/data`). |
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|`-D CREATE_SCRIPTMODULES=(OFF\|ON)` | `OFF` | Create all required scriptmodule files for prelearned models / weights during build. Requires installed python3 with pytorch and torchvision. |

‎cmake/check_files.cmake

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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cmake_minimum_required(VERSION 3.28.6 FATAL_ERROR)
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function(check_files BASE_DIR FILES_TO_CHECK FILE_MD5S MISSING_FILES)
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foreach(FILE_TO_CHECK ${${FILES_TO_CHECK}})

‎cmake/copy_torch_dlls.cmake

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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cmake_minimum_required(VERSION 3.28.6 FATAL_ERROR)
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function(copy_torch_dlls TARGET_NAME)
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# According to https://github.com/pytorch/pytorch/issues/25457

‎cmake/cpplint.cmake

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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cmake_minimum_required(VERSION 3.28.6 FATAL_ERROR)
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find_program(CPPLINT cpplint)
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‎cmake/create_torch_dll_hardlinks.cmake

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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cmake_minimum_required(VERSION 3.28.6 FATAL_ERROR)
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file(GLOB TORCH_DLLS "${TORCH_INSTALL_PREFIX}/lib/*.dll")
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‎cmake/fetch_cifar10.cmake

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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cmake_minimum_required(VERSION 3.28.6 FATAL_ERROR)
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function(fetch_cifar10 DATA_DIR)
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set(CIFAR_DIR "${DATA_DIR}/cifar10")

‎cmake/fetch_datasets.cmake

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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cmake_minimum_required(VERSION 3.28.6 FATAL_ERROR)
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include(${CMAKE_CURRENT_LIST_DIR}/fetch_mnist.cmake)
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include(${CMAKE_CURRENT_LIST_DIR}/fetch_cifar10.cmake)

‎cmake/fetch_flickr8k.cmake

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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cmake_minimum_required(VERSION 3.28.6 FATAL_ERROR)
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function(fetch_flickr8k DATA_DIR)
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set(FLICKR8K_DIR "${DATA_DIR}/flickr_8k")

‎cmake/fetch_imagenette.cmake

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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cmake_minimum_required(VERSION 3.28.6 FATAL_ERROR)
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function(fetch_imagenette DATA_DIR)
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set(IMAGENETTE_DIR "${DATA_DIR}/imagenette2-160")

‎cmake/fetch_libtorch.cmake

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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include(FetchContent)
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set(CUDA_V "none" CACHE STRING "Determines libtorch CUDA version to download (11.8, 12.1 or none).")
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set(CUDA_V "none" CACHE STRING "Determines libtorch CUDA version to download (11.8, 12.1, 12.6 or none).")
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if(${CUDA_V} STREQUAL "none")
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set(LIBTORCH_DEVICE "cpu")
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elseif(${CUDA_V} STREQUAL "11.8")
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set(LIBTORCH_DEVICE "cu118")
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elseif(${CUDA_V} STREQUAL "12.1")
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set(LIBTORCH_DEVICE "cu121")
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elseif(${CUDA_V} STREQUAL "12.6")
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set(LIBTORCH_DEVICE "cu126")
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else()
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message(FATAL_ERROR "Invalid CUDA version specified, must be 11.8, 12.1 or none!")
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message(FATAL_ERROR "Invalid CUDA version specified, must be 11.8, 12.1, 12.6 or none!")
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endif()
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if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")

‎cmake/fetch_mnist.cmake

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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function(fetch_mnist DATA_DIR)
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set(MNIST_DOWNLOAD_DIR "${DATA_DIR}/mnist/download")

‎cmake/fetch_neural_style_transfer_images.cmake

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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function(fetch_neural_style_transfer_imagers DATA_DIR)
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set(NEURAL_STYLE_TRANSFER_IMAGES_DIR

‎cmake/fetch_penntreebank.cmake

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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function(fetch_penntreebank DATA_DIR)
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set(PENNTREEBANK_DIR "${DATA_DIR}/penntreebank")

‎cmake/find_gz_extractor.cmake

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# Find program that can extract .gz files.
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# Based on: https://github.com/Amber-MD/cmake-buildscripts/blob/master/gzip.cmake

‎extern/CMakeLists.txt

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cmake_minimum_required(VERSION 3.19 FATAL_ERROR)
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project(extern VERSION 1.0.0 LANGUAGES CXX)
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