How to run the code about pytorch-cpp

[mfl28]

If you followed the steps in "Getting Started" in the readme, the binaries should be in

build/tutorials/<tutorial_category>/<tutorial_name>/

So for example, the executable for the logistic regression tutorial should be in

build/tutorials/basics/logistic_regression/

[mfl28]

Thanks!

cmake -build build

You need to use two hyphens before the build parameter, like this:
cmake --build build

Some additional info for the first cmake command (cmake -B build ...):

• It isn't necessary to specify -D CUDA_V=none as it is set by default.
• You don't have to set -D DOWNLOAD_DATASETS=OFF if the data was already previously downloaded as the cmake script checks if files are already present (in pytorch-cpp/data) and if so, doesn't redownload them. If, on the other hand, you really don't want to download the datasets at all through the cmake script, you'll have to do it manually, otherwise most of the tutorials won't run.
• Also you don't need to specify -D CMAKE_PREFIX_PATH=./, as by default the cmake script will look for a previously downloaded libtorch in pytorch-cpp/libtorch if CMAKE_PREFIX_PATH is not specified.

So, in short, if you want to build on Linux, using libtorch for CPU (and not using an existing local version outside of pytorch-cpp/libtorch) it should be enough to do:

cmake -B build
cmake --build build

@prabhuomkar We might want to clarify some of these things better in the readme.

[abhigoku10]

@mfl28 @prabhuomkar i followed the same steps but not able to see any binary files

in the mentioned location i have only the above contents . i am performing this activity on cpu , i have disable cuda==None

[mfl28]

Can you tell me exactly the cmake commands you used?
Did you execute cmake --build build from the pytorch-cpp directory after generating the build system?

[abhigoku10]

@mfl28 Thanks for instant response .Please find the commands i have done
git clone https://github.com/prabhuomkar/pytorch-cpp.git
cd pytorch-cpp
cmake -B build -D CUDA_V=none -D DOWNLOAD_DATASETS=OFF -D CMAKE_PREFIX_PATH= ./
cmake -build build

[abhigoku10]

@mfl28 thanks for the steps now i am able to build the binaries

[prabhuomkar]

We might want to clarify some of these things better in the readme.

@mfl28 Agreed, I will send a PR for this.

[prabhuomkar]

@abhigoku10 let's close this if there are not more queries or issues in running the code?