Linux: CENTOS 5.4
CUDA: 2.3
driver: 190.18…
I have two cards: Geforce8400
295GTX
PCI bus:
02:00.0 PCI bridge: nVidia Corporation PCI express bridge for GTX 295 (rev a3)
03:00.0 PCI bridge: nVidia Corporation PCI express bridge for GTX 295 (rev a3)
03:02.0 PCI bridge: nVidia Corporation PCI express bridge for GTX 295 (rev a3)
04:00.0 3D controller: nVidia Corporation Unknown device 05eb (rev a1)
05:00.0 VGA compatible controller: nVidia Corporation Unknown device 05eb (rev a1)
06:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 8400 GS] (rev a1)
nvidia-settings show the two cards but:
nvidia-smi:
NVIDIA: could not open the device file /dev/nvidia0 (Input/output error).
Failed to attach gpu
Could not allocate resources!
deviceQuery:
CUDA Device Query (Runtime API) version (CUDART static linking)
NVIDIA: could not open the device file /dev/nvidia0 (Input/output error).
There is no device supporting CUDA.
What can be the problem?
Thanks
Amir
Linux: CENTOS 5.4
CUDA: 2.3
driver: 190.18…
I have two cards: Geforce8400
295GTX
PCI bus:
02:00.0 PCI bridge: nVidia Corporation PCI express bridge for GTX 295 (rev a3)
03:00.0 PCI bridge: nVidia Corporation PCI express bridge for GTX 295 (rev a3)
03:02.0 PCI bridge: nVidia Corporation PCI express bridge for GTX 295 (rev a3)
04:00.0 3D controller: nVidia Corporation Unknown device 05eb (rev a1)
05:00.0 VGA compatible controller: nVidia Corporation Unknown device 05eb (rev a1)
06:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 8400 GS] (rev a1)
nvidia-settings show the two cards but:
nvidia-smi:
NVIDIA: could not open the device file /dev/nvidia0 (Input/output error).
Failed to attach gpu
Could not allocate resources!
deviceQuery:
CUDA Device Query (Runtime API) version (CUDART static linking)
NVIDIA: could not open the device file /dev/nvidia0 (Input/output error).
There is no device supporting CUDA.
What can be the problem?
Thanks
Amir
Question should go to linux forum, but…
run the following:
ls -l /dev/nvidia*
On my system with 3 GTX295 I see:
crw-rw-rw- 1 root root 195, 0 Nov 29 09:17 /dev/nvidia0
crw-rw-rw- 1 root root 195, 1 Nov 29 09:17 /dev/nvidia1
crw-rw-rw- 1 root root 195, 2 Nov 29 09:17 /dev/nvidia2
crw-rw-rw- 1 root root 195, 3 Nov 29 09:17 /dev/nvidia3
crw-rw-rw- 1 root root 195, 4 Nov 29 09:17 /dev/nvidia4
crw-rw-rw- 1 root root 195, 5 Nov 29 09:17 /dev/nvidia5
crw-rw-rw- 1 root root 195, 255 Nov 29 09:17 /dev/nvidiactl
if you dont see those files, this might help you:
mknod -m 0666 /dev/nvidiactl c 195 255
mknod -m 0666 /dev/nvidia0 c 195 0
mknod -m 0666 /dev/nvidia1 c 195 1
mknod -m 0666 /dev/nvidia2 c 195 2
mknod -m 0666 /dev/nvidia3 c 195 3
mknod -m 0666 /dev/nvidia4 c 195 4
mknod -m 0666 /dev/nvidia5 c 195 5
As far as I remember if you have X enabled, there should not be such problem.
Take a look here:
http://forums.nvidia.com/index.php?showtopic=52629
Question should go to linux forum, but…
run the following:
ls -l /dev/nvidia*
On my system with 3 GTX295 I see:
crw-rw-rw- 1 root root 195, 0 Nov 29 09:17 /dev/nvidia0
crw-rw-rw- 1 root root 195, 1 Nov 29 09:17 /dev/nvidia1
crw-rw-rw- 1 root root 195, 2 Nov 29 09:17 /dev/nvidia2
crw-rw-rw- 1 root root 195, 3 Nov 29 09:17 /dev/nvidia3
crw-rw-rw- 1 root root 195, 4 Nov 29 09:17 /dev/nvidia4
crw-rw-rw- 1 root root 195, 5 Nov 29 09:17 /dev/nvidia5
crw-rw-rw- 1 root root 195, 255 Nov 29 09:17 /dev/nvidiactl
if you dont see those files, this might help you:
mknod -m 0666 /dev/nvidiactl c 195 255
mknod -m 0666 /dev/nvidia0 c 195 0
mknod -m 0666 /dev/nvidia1 c 195 1
mknod -m 0666 /dev/nvidia2 c 195 2
mknod -m 0666 /dev/nvidia3 c 195 3
mknod -m 0666 /dev/nvidia4 c 195 4
mknod -m 0666 /dev/nvidia5 c 195 5
As far as I remember if you have X enabled, there should not be such problem.
Take a look here:
http://forums.nvidia.com/index.php?showtopic=52629
amirbaru@boag-lab4-pc release$ ls -l /dev/nvidia*
crw-rw-rw- 1 root root 195, 0 Dec 14 16:05 /dev/nvidia0
crw-rw-rw- 1 root root 195, 1 Dec 14 16:05 /dev/nvidia1
crw-rw-rw- 1 root root 195, 2 Dec 14 16:05 /dev/nvidia2
crw-rw-rw- 1 root root 195, 255 Dec 14 16:05 /dev/nvidiactl
What now?
Thanks
Amir