CUDA Install errors...HELP...never mind
 

Synopsis:

My GTX 970 GPU died; I got a new one on warranty.

At the same time (maybe due to moving the CPU to the repair shop) I also lost my hard drive.

New hard drive; new install of Windows 7 means I lost all the CUDA/MisFit/Mfaktc stuff.

Replacement GTX 970 installed (by me ... no expert but trying.)

Windows 7 installed the Driver (though not sure the right one or all of them).

Downloaded and ran mfaktc-win-64.

Error:
CUDA version info
binary compiled for CUDA 6.50
CUDA runtime version 12517.66
CUDA driver version 0.0
ERROR: current CUDA driver version is lower than the CUDA toolkit version used during compile!
Please update your graphics driver.

I went to the CUDA website and downloaded and installed:
cuda_6.5.14_windows_general_64

During install I got a couple errors....see attachment...first error on left then error on right.

Seems it does not think I have have the right card...or is a driver missing.

I tried rerunning mfaktc and got the same error as above

Those errors look like the System does not know yet, what your card is. And CUDA does not need to be installed seperately to run CUDALucas. And the fact that your windows installed the graphics drivers doesn't sound right to me.

What I would do: Go to NVIDIAs page and download/install the newest driver for your card manually - after this the programs should work, if you just download the cudart and cufft dlls and put them in the same folder as the program.

Hi,

[QUOTE=petrw1;428208]
CUDA version info
binary compiled for CUDA 6.50
CUDA runtime version [B][COLOR="Red"]12517.66[/COLOR][/B]
CUDA driver version 0.0
ERROR: current CUDA driver version is lower than the CUDA toolkit version used during compile!
Please update your graphics driver.
[/QUOTE]

AFAIK the main reason for this behaviour is a wrong runtime library is used. A few years ago I've asked nvidia (actually I filed a bug) but they say it works as designed. Using wrong runtime library (read: not the version used during compile) causes multiple issues including reading the version of the runtime library and is not supported.

Oliver