If you are working with linux an experience this error:

################################ OPENCL ERROR ###############################

Error executing function: clCreateCommandQueue

Status error code: CL_OUT_OF_HOST_MEMORY (-6)

Please visit the following url for more information:

https://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateCommandQueue.html#errors

#############################################################################
), State { next_error: None, backtrace: None }) restarting

reinstall OpenCL. In my case it was an old config I dragged around for some version updates. Reinstall is easier as fixing config