Upgrade to libtorch v1.8.0 in CMake scripts and Dockerfile, update CU…

…DA version in colab notebook, update readme. (#78)

CMakeLists.txt

@@ -7,7 +7,7 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 option(DOWNLOAD_DATASETS "Automatically download required datasets at build-time." ON)
 option(CREATE_SCRIPTMODULES "Automatically create all required scriptmodule files at build-time (requires python3)." OFF)
 
-set(PYTORCH_VERSION "1.7.0")
+set(PYTORCH_VERSION "1.8.0")
 
 find_package(Torch ${PYTORCH_VERSION} EXACT QUIET PATHS "${CMAKE_SOURCE_DIR}/libtorch")
 

Dockerfile

@@ -31,8 +31,8 @@ RUN curl --silent --show-error --location --output ~/miniconda.sh https://repo.a
 
 FROM conda AS conda-installs
 # Install pytorch for CPU and torchvision.
-ARG PYTORCH_VERSION=1.6.0
-ARG TORCHVISION_VERSION=0.7.0
+ARG PYTORCH_VERSION=1.8.0
+ARG TORCHVISION_VERSION=0.9.0
 ENV NO_CUDA=1
 RUN conda install pytorch==${PYTORCH_VERSION} torchvision==${TORCHVISION_VERSION} cpuonly -y -c pytorch && conda clean -ya
 

README.md

@@ -6,12 +6,12 @@
     <br />
 <img src="https://img.shields.io/travis/prabhuomkar/pytorch-cpp">
 <img src="https://img.shields.io/github/license/prabhuomkar/pytorch-cpp">
-<img src="https://img.shields.io/badge/libtorch-1.7.0-ee4c2c">
+<img src="https://img.shields.io/badge/libtorch-1.8.0-ee4c2c">
 <img src="https://img.shields.io/badge/cmake-3.14-064f8d">
 </p>
 
 
-| OS (Compiler)\\LibTorch |                                                  1.7.0                                                  |  nightly |
+| OS (Compiler)\\LibTorch |                                                  1.8.0                                                  |  nightly |
 | :---------------------: | :---------------------------------------------------------------------------------------------------: |  :-----: |
 |    macOS (clang 9.1)    | ![Status](https://travis-matrix-badges.herokuapp.com/repos/prabhuomkar/pytorch-cpp/branches/master/1) |          |
 |    macOS (clang 10.0)   | ![Status](https://travis-matrix-badges.herokuapp.com/repos/prabhuomkar/pytorch-cpp/branches/master/2) |          |
@@ -58,7 +58,7 @@ This repository provides tutorial code in C++ for deep learning researchers to l
 
 1. [C++](http://www.cplusplus.com/doc/tutorial/introduction/)
 2. [CMake](https://cmake.org/download/) (minimum version 3.14)
-3. [LibTorch v1.7.0](https://pytorch.org/cppdocs/installing.html)
+3. [LibTorch v1.8.0](https://pytorch.org/cppdocs/installing.html)
 4. [Conda](https://docs.conda.io/projects/conda/en/latest/user-guide/install/download.html)
 
 
@@ -95,7 +95,7 @@ Some useful options:
 
 | Option       | Default           | Description  |
 | :------------- |:------------|-----:|
-| `-D CUDA_V=(9.2 [Linux only]\|10.1\|10.2\|11.0\|none)`     | `none` | Download LibTorch for a CUDA version (`none` = download CPU version). |
+| `-D CUDA_V=(\|10.2\|11.1\|none)`     | `none` | Download LibTorch for a CUDA version (`none` = download CPU version). |
 | `-D DOWNLOAD_DATASETS=(OFF\|ON)`     | `ON`      |   Download required datasets during build (only if they do not already exist in `pytorch-cpp/data`). |
 |`-D CREATE_SCRIPTMODULES=(OFF\|ON)` | `OFF` | Create all required scriptmodule files for prelearned models / weights during build. Requires installed  python3 with  pytorch and torchvision. |
 | `-D CMAKE_PREFIX_PATH=path/to/libtorch/share/cmake/Torch` |   `<empty>`    |    Skip the downloading of LibTorch and use your own local version (see [Requirements](#requirements)) instead. |
@@ -121,14 +121,14 @@ cmake -B build \
 <summary><b>Example Windows</b></summary>
 
 ##### Aim
-* Automatically download LibTorch for CUDA 10.2 and all necessary datasets.
+* Automatically download LibTorch for CUDA 11.1 and all necessary datasets.
 * Do not create scriptmodule files.
 
 ##### Command
 ```bash
 cmake -B build \
 -A x64 \
--D CUDA_V=10.2
+-D CUDA_V=11.1
 ```
 </details>
 

cmake/fetch_libtorch.cmake

@@ -2,31 +2,23 @@ cmake_minimum_required(VERSION 3.14 FATAL_ERROR)
 
 include(FetchContent)
 
-set(CUDA_V "none" CACHE STRING "Determines libtorch CUDA version to download (9.2 [Linux only], 10.1, 10.2 or 11.0).")
+set(CUDA_V "none" CACHE STRING "Determines libtorch CUDA version to download (10.2, 11.1 or none).")
 
 if(${CUDA_V} STREQUAL "none")
     set(LIBTORCH_DEVICE "cpu")
-elseif(${CUDA_V} STREQUAL "9.2")
-    set(LIBTORCH_DEVICE "cu92")
-elseif(${CUDA_V} STREQUAL "10.1")
-    set(LIBTORCH_DEVICE "cu101")
 elseif(${CUDA_V} STREQUAL "10.2")
     set(LIBTORCH_DEVICE "cu102")
-elseif(${CUDA_V} STREQUAL "11.0")
-    set(LIBTORCH_DEVICE "cu110")
+elseif(${CUDA_V} STREQUAL "11.1")
+    set(LIBTORCH_DEVICE "cu111")
 else() 
-    message(FATAL_ERROR "Invalid CUDA version specified, must be 9.2 [Linux only], 10.1, 10.2, 11.0 or none!")
+    message(FATAL_ERROR "Invalid CUDA version specified, must be 10.2, 11.1 or none!")
 endif()
 
 if(NOT ${LIBTORCH_DEVICE} STREQUAL "cu102")
     set(LIBTORCH_DEVICE_TAG "%2B${LIBTORCH_DEVICE}")
 endif()
 
 if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
-    if(${LIBTORCH_DEVICE} STREQUAL "cu92")
-        message(FATAL_ERROR "PyTorch ${PYTORCH_VERSION} does not support CUDA 9.2 on Windows. Please use CPU or upgrade to CUDA versions 10.1, 10.2 or 11.0.")
-    endif()
-
     set(LIBTORCH_URL "https://download.pytorch.org/libtorch/${LIBTORCH_DEVICE}/libtorch-win-shared-with-deps-${PYTORCH_VERSION}${LIBTORCH_DEVICE_TAG}.zip")
     set(CMAKE_BUILD_TYPE "Release")
 elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")