listOpenCLDevices returns character(0)

[huanpipt]

Hi,

I hope this is not the wrong place to ask questions.

I am new to R and gpu computing, and I am trying to run this script with gpu_cox. But I was stuck in getting the gpudevice with listOpenCLDevices()

I can find my gpudevice with OpenCL R package, and can do some gpu computing on python with xgboost. So, I think hardware should support gpu computing. It can be I missed some setting for R?

I checked the source code for listOpenCLDevices, which is

function () 
{
  .Call(`_Cyclops_listOpenCLDevices`)
}

It seems it is calling a c function, named "_Cyclops_listOpenCLDevices"? But, I do not know where to find it and check how to fix this issue.

Could anyone please give me some advice?

Many thanks,
Yueh