Failure detecting GPU - NVML API location with DCH drivers

[JeremyMain]

DCH drivers do not use the standard installation path for the NVML DLL.
Fallback test for alternate locations.

Bug fixed being confirmed by reporting user.

[JeremyMain]

Fix complete and to be included in v1.07b

[JeremyMain]

fix backported from v1.07b and added to v1.07a1

[andyg336]

Still having GPUProfiler v1.07a1 fail to detect my RTX 2070, any information I can provide to help fix?

[JeremyMain]

@andyg336
if you could share the first 25 lines from the output of the following command

C:\Program Files\NVIDIA Corporation\NVSMI>nvidia-smi.exe -q

Ex:
==============NVSMI LOG==============

Timestamp : Thu Aug 13 23:04:26 2020
Driver Version : 442.92
CUDA Version : 10.2

Attached GPUs : 1
GPU 00000000:02:00.0
Product Name : Quadro GP100
Product Brand : Quadro
Display Mode : Enabled
Display Active : Enabled
Persistence Mode : N/A
Accounting Mode : Disabled
Accounting Mode Buffer Size : 4000
Driver Model
Current : WDDM
Pending : WDDM
Serial Number : 0321617046176
GPU UUID : GPU-ba1918e6-6088-0dc5-609a-32ab00241593
Minor Number : N/A
VBIOS Version : 86.00.3A.00.0A
MultiGPU Board : No
Board ID : 0x200
GPU Part Number : 900-5H400-0000-000
Inforom Version
Image Version : H400.0500.01.04
OEM Object : 1.1
ECC Object : 4.1
Power Management Object : N/A

[JeremyMain]

re-opening this issue

[andyg336]

C:\Program Files\NVIDIA Corporation\NVSMI>nvidia-smi.exe -q Failed to initialize NVML: Unknown Error

Which doesn't bode well for me

[andyg336]

Reinstalled drivers, several times. Issue intermittently fixed. But I'm fairly confident the issue is my end

[JeremyMain]

It could be that you have a DCH driver that has been installed while the older non-DCH driver remains installed.
The only workaround to avert this situation on my end would be to first attempt DCH driver detection and fall back to non-DCH driver detection if that fails.
Uninstalling any of the older drivers should help rectify the situation.
Thank you for reporting this issue.

[andyg336]

Appreciate the suggestion, I'll give it a go.

Thanks for a really nice tool as well 👍