I ran ./deviceQuery program and it failed. I’m not sure what I’m missing here. Could it be the GPUs installed are not CUDA capable?
This is the output of the the deviceQuery:
CUDA Device Query (Runtime API) version (CUDART static linking)
cudaGetDeviceCount returned 38
I ran the deviceQuery on Ubuntu 14.04.4 LTS. The GPUs installed are:
The driver is:
Thanks in advance for any help.
Have you installed nvidia-modprobe?
# Create missing nvidia device nodes after reboot
/usr/bin/nvidia-modprobe -c 0 -u
Mats
I don’t have root access. I checked for /usr/bin/nvidia-modprobe and it is not there. I guess it is not installed.
Okay,
bash-4.3# ls -l /usr/bin/ |grep nvidia
-rwxr-xr-x 1 root root 23K feb 12 02:27 nvidia-bug-report.sh*
-rwxr-xr-x 1 root root 204K feb 12 02:27 nvidia-debugdump*
-rwxr-xr-x 1 root root 300K feb 12 02:27 nvidia-installer*
-rwxr-xr-x 1 root root 26K feb 12 02:28 nvidia-modprobe*
-rwxr-xr-x 1 root root 33K feb 12 02:29 nvidia-persistenced*
-rwxr-xr-x 1 root root 1,8M feb 12 02:28 nvidia-settings*
-rwxr-xr-x 1 root root 245K feb 12 02:27 nvidia-smi*
lrwxrwxrwx 1 root root 16 nov 16 19:12 nvidia-uninstall -> nvidia-installer*
-rwxr-xr-x 1 root root 170K feb 12 02:28 nvidia-xconfig*
Do you see these three devices?:
bash-4.3# ls -l /dev |grep nvidia
crw-rw-rw- 1 root root 245, 0 mar 9 01:28 nvidia-uvm
crw-rw-rw- 1 root root 195, 0 mar 9 01:29 nvidia0
crw-rw-rw- 1 root root 195, 255 mar 9 01:29 nvidiactl
No, I don’t have the three devices that you listed.
ls -l /usr/bin/ |grep nvidia
lrwxrwxrwx 1 root root 52 Mar 7 10:37 nvidia-bug-report.sh -> /etc/alternatives/x86_64-linux-gnu_nvidia_bug_report*
lrwxrwxrwx 1 root root 58 Mar 7 10:37 nvidia-cuda-mps-control -> /etc/alternatives/x86_64-linux-gnu_nvidia-cuda-mps-control*
lrwxrwxrwx 1 root root 57 Mar 7 10:37 nvidia-cuda-mps-server -> /etc/alternatives/x86_64-linux-gnu_nvidia-cuda-mps-server*
lrwxrwxrwx 1 root root 51 Mar 7 10:37 nvidia-debugdump -> /etc/alternatives/x86_64-linux-gnu_nvidia-debugdump*
-rwxr-xr-x 1 root root 270 Aug 4 2015 nvidia-detector*
lrwxrwxrwx 1 root root 54 Mar 7 10:37 nvidia-persistenced -> /etc/alternatives/x86_64-linux-gnu_nvidia_persistenced*
-rwxr-xr-x 1 root root 204064 Apr 15 2015 nvidia-settings*
lrwxrwxrwx 1 root root 45 Mar 7 10:37 nvidia-smi -> /etc/alternatives/x86_64-linux-gnu_nvidia_smi*
lrwxrwxrwx 1 root root 49 Mar 7 10:37 nvidia-xconfig -> /etc/alternatives/x86_64-linux-gnu_nvidia_xconfig*
-rwxr-xr-x 1 root root 99 Nov 16 13:50 start-nvidia-persistenced*
-rwxr-xr-x 1 root root 109 Nov 16 13:50 stop-nvidia-persistenced*
The administrator installed another version of the driver and it is working now. I can see the nvidia-modprobe. I guess the problem was with the driver version.
The current driver:
cat /proc/driver/nvidia/version
NVRM version: NVIDIA UNIX x86_64 Kernel Module 352.79 Wed Jan 13 16:17:53 PST 2016
GCC version: gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
The previous driver:
cat /proc/driver/nvidia/version
NVRM version: NVIDIA UNIX x86_64 Kernel Module 352.63 Sat Nov 7 21:25:42 PST 2015
GCC version: gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
Thanks
OBane
July 6, 2016, 2:26pm
7
Hi, I am having the same issue with deviceQuery under Cuda 6.5, although I have the 352.79 driver.
When ran with root privileges, deviceQuery Fails:
./deviceQuery Starting…
CUDA Device Query (Runtime API) version (CUDART static linking)
cudaGetDeviceCount returned 38
My NVIDIA driver:
NVRM version: NVIDIA UNIX x86_64 Kernel Module 352.79 Wed Jan 13 16:17:53 PST 2016
Which version of Cuda works best with this driver? I was last able to run code that used Cuda successfully in early March 2016.
Thank you!
Octavia