CUDA SDK 7.5 and 9.0 works but v8.0 gives - driver version insufficient for runtime version

I have Nvidia driver version 384.90 installed on my Scientific Linux 7 machine which has four GTX 1080ti cards. See below for the output of nvidia-smi.

I also have CUDA SDK ver 7.5, 8.0 and 9.0 all installed to different folders. DeviceQuery works fine from versions 7.5 and 9.0 but not from ver8.0. What did I miss ? Thanks for your time and help.

$ nvidia-smi
Thu Nov 9 23:48:10 2017
±----------------------------------------------------------------------------+
| NVIDIA-SMI 384.90 Driver Version: 384.90 |
|-------------------------------±---------------------±---------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce GTX 108… Off | 00000000:02:00.0 Off | N/A |
| 69% 84C P2 73W / 250W | 3205MiB / 11172MiB | 0% Default |
±------------------------------±---------------------±---------------------+
| 1 GeForce GTX 108… Off | 00000000:03:00.0 Off | N/A |
| 23% 32C P0 59W / 250W | 0MiB / 11172MiB | 0% Default |
±------------------------------±---------------------±---------------------+
| 2 GeForce GTX 108… Off | 00000000:81:00.0 Off | N/A |
| 23% 33C P0 59W / 250W | 0MiB / 11172MiB | 0% Default |
±------------------------------±---------------------±---------------------+
| 3 GeForce GTX 108… Off | 00000000:82:00.0 Off | N/A |
| 23% 31C P0 58W / 250W | 0MiB / 11172MiB | 0% Default |
±------------------------------±---------------------±---------------------+

±----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 15509 C python3 3195MiB |
±----------------------------------------------------------------------------+

$ /global/software/cuda/8.0/samples/1_Utilities/deviceQuery/deviceQuery
/global/software/cuda/8.0/samples/1_Utilities/deviceQuery/deviceQuery Starting…

CUDA Device Query (Runtime API) version (CUDART static linking)

cudaGetDeviceCount returned 35
-> CUDA driver version is insufficient for CUDA runtime version
Result = FAIL

$ /global/software//cuda/9.0/samples/1_Utilities/deviceQuery/deviceQuery
/global/software//9.0/samples/1_Utilities/deviceQuery/deviceQuery Starting…

CUDA Device Query (Runtime API) version (CUDART static linking)

Detected 4 CUDA Capable device(s)