Hi

when i try to just one gpu:

"gpu_conf" :
[

   { "id" : 3, "intensity" : 120, "worksize" : 16, "threads" : 2},
]
}

i get an error this error:

Error CL_INVALID_DEVICE when calling clCreateContext

however if i run all 4..it works. can you please assist me on getting one gpu only to mine?

thanks