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XenServer 6.2 does not show nvidia kernel module after installing nVIDIA vGPU Drivers Dell R720

While Trying to setup Dell R720 with NVIDIA Grid K2  for XenServer 6.2 SP1
It may happen that after you install the nvidia driver and reboot the server , the module for nvidia is not recognized .
To verify the install after reboot you may run the following command
 lsmod | grep nvidia

If it does not find any module then we may have to disable one setting in System BIOS for Dell R720 server.

This is the setting you need to disable. (Memory Mapped I/O above 4GB)

You can find it Under > System BIOS > Integrated Devices >



After the server come back online , you can run the following command to verify the module was loaded fine

lsmod | grep nvidia

The output should be something like

nvidia               9626462  26
i2c_core               20294  1 nvidia


Verify that the NVIDIA kernel driver can successfully communicate with the GRID physical GPUs in your system by running the nvidia-smi command.

The output should look like:


+------------------------------------------------------+
| NVIDIA-SMI 331.30     Driver Version: 331.30         |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GRID K2             On   | 0000:06:00.0     Off |                  Off |
| N/A   36C    P8    27W / 117W |     10MiB /  4095MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   1  GRID K2             On   | 0000:07:00.0     Off |                  Off |
| N/A   33C    P8    27W / 117W |     10MiB /  4095MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   2  GRID K2             On   | 0000:44:00.0     Off |                  Off |
| N/A   37C    P8    28W / 117W |     10MiB /  4095MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   3  GRID K2             On   | 0000:45:00.0     Off |                  Off |
| N/A   35C    P8    28W / 117W |     10MiB /  4095MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Compute processes:                                               GPU Memory |
|  GPU       PID  Process name                                     Usage      |
|=============================================================================|
|  No running compute processes found                                         |


Hope This helps.


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