Dear all
HP Z640 Workstation suggests for Ubuntu the combination of K620 & K40c. Have both.
Faced power supply problems. The lspci saw both K620 and the K40 but the nvidia-smi did not generate any answer stating that the Tesla K40 is underpowered. Added external PSU supply to the 6+8 PCIe pins but I now see completely different reports. See below
lspci
…
02:00.0 VGA compatible controller: NVIDIA Corporation GM107GL [Quadro K620] (rev a2)
02:00.1 Audio device: NVIDIA Corporation Device 0fbc (rev a1)
…
the nvidia-smi seems to only see the K620
nvidia-smi
Thu Jun 20 16:40:04 2019
±----------------------------------------------------------------------------+
| NVIDIA-SMI 418.39 Driver Version: 418.39 CUDA Version: 10.1 |
|-------------------------------±---------------------±---------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 Quadro K620 On | 00000000:02:00.0 On | N/A |
| 36% 50C P0 3W / 30W | 740MiB / 1999MiB | 0% Default |
±------------------------------±---------------------±---------------------+
±----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 3735 G /usr/lib/xorg/Xorg 107MiB |
| 0 4196 G /usr/bin/gnome-shell 54MiB |
| 0 5645 G /usr/lib/xorg/Xorg 290MiB |
| 0 5834 G /usr/bin/gnome-shell 271MiB |
| 0 6287 G …-token=0D9C0565B311AFFB026968A760625C4F 12MiB |
±----------------------------------------------------------------------------+
…
The dmesg NVRM commend reports
dmesg | grep NVRM
[ 1.591191] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 418.39 Sat Feb 9 19:19:37 CST 2019
[ 4.273207] NVRM: Failed to enable MSI; falling back to PCIe virtual-wire interrupts.
[ 5.366368] NVRM: Failed to enable MSI; falling back to PCIe virtual-wire interrupts.
…
The dmeg nvidia command reports
dmesg | grep nvidia
[ 1.444293] nvidia: loading out-of-tree module taints kernel.
[ 1.444300] nvidia: module license ‘NVIDIA’ taints kernel.
[ 1.476146] nvidia: module verification failed: signature and/or required key missing - tainting kernel
[ 1.481556] nvidia-nvlink: Nvlink Core is being initialized, major device number 239
[ 1.481844] nvidia 0000:02:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=io+mem
[ 1.596905] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 418.39 Sat Feb 9 19:13:33 CST 2019
[ 1.597626] [drm] [nvidia-drm] [GPU ID 0x00000200] Loading driver
[ 1.597628] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:02:00.0 on minor 0
[ 4.257114] nvidia-uvm: Loaded the UVM driver in 8 mode, major device number 236
Can you please help??
Best