How to use cuda with LSP-clangd

Question

I want to use sublime text as my c++ editor.

I added LSP-clangd in the editor. I generate some compile_commands.json and clangd works on almost every files in my project but not with cuda files.

I saw in clangd FAQ that we must ensure :

that our editor plugin is enabling clangd when CUDA files are open (e.g. enabling for extension *.cu). I didn't found any parameters in LSP-clangd settings to add some file extensions.
make sure that clangd understands these are CUDA files (e.g. by extension *.cu or adding the clang flag -xcuda). Where should I add these flags? In compile_commands.json?
set the path to your cuda installation if it isn’t detected, by adding the clang flag --cuda-path=... Where should I specify this path? I tried using command clang --cuda-path=my/cuda/path but it returns me clang: error; no input files

Have you any idea to solve one of these 3 problems ? or did someone suceed to use cuda with clangd in sublime text ?

For #2 and #3, I think the best place to specify both the -xcuda flag (note: I believe this is only needed if your CUDA files don't have a CUDA-specific extension such as *.cu), and the --cuda-path flag is a clangd config file using CompileFlags: Add:. These flags will be added to the flags from compile_commands.json. — HighCommander4
– HighCommander4, Commented Feb 16, 2023 at 21:03

lufydad · Accepted Answer · 2023-03-08 09:28:53Z

5

Thanks to @HighCommander4, I solve this issue by adding a clang config file to my project. Moreover, I found an issue on clangd github that shares a similar problem.

Here is the .clangd configuration file that I use for my project :

CompileFlags:
  Add:
    - --cuda-path=C://Program Files//NVIDIA GPU Computing Toolkit//CUDA//v12.1
    - -LC://Program Files//NVIDIA GPU Computing Toolkit//CUDA//v12.1//lib
    - -IC://Program Files//NVIDIA GPU Computing Toolkit//CUDA//v12.1//include

answered Mar 8, 2023 at 9:28

lufydad

2851 gold badge3 silver badges13 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to use cuda with LSP-clangd

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related