[QUESTION]: Using LibDevice - CUDA installation required on user computer?

[AmosEgel]

Question

It seems to me that using LibDevice requires the CUDA tollkit to be installed on the user computer, see here. In fact, we otherwise get errors "CUDA_PATH environment variable not found".

Is it correct that a CUDA toolkit installation is required on the user machine? Or is there a way to deploy our software (that uses ILGPU and calls LibDevice) to the user without asking them to install the CUDA toolkit?

Environment

• ILGPU version: [e.g., 1.5.1]
• .NET version: .NET Framework 4.7.2
• Operating system: Windows 10
• Hardware : NVIDIA T1000

Additional context

No response

[MoFtZ]

It is not necessary to install the CUDA SDK.

The CUDA SDK allows you to redistribute the parts you need:
https://docs.nvidia.com/cuda/eula/index.html#attachment-a

For LibDevice, if you a redistributing the CUDA files yourself, you can use the alternate LibDevice initialiser:

ILGPU/Src/ILGPU/Context.Builder.cs

Line 399 in c3af8f3

public Builder LibDevice(string libNvvmPath, string libDevicePath)