## What drivers/patches are necessary for the razer tensorbook?
**Mar 19, 2024**  
I am not a LambdaLab person.  
I noticed that your github link above is not valid as it has space and hence it is starting to land at [b.com/eureka](http://b.com/eureka)…  
Good luck.

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## Lambda Stack seems to be wiped out after Ubuntu update
**Mar 13, 2024**  
Problem is solved.  
Since via  
`sudo apt-get remove lambda-stack-cuda && sudo apt-get install lambda-stack-cuda`  
This failed in the middle due to interruption and I have to do  
`sudo dpkg --configure -a`  
and reissue the above install of lambda-stack-cuda.  
This went through, I rebooted the system and a…

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## Lambda Stack CUDA and Nvidia drivers
**Mar 13, 2024**  
Yes I also want to upgrade Cuda to 12.1 and compatible torch version.  
As per this [Nvidia Official Drivers](https://www.nvidia.com/Download/index.aspx)  
We can upgrade the driver via the above link and the torch via the [pytorch.org](http://pytorch.org/) page  
  
Is there a lambda-stack way to upgrade them?

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## Lambda Stack seems to be wiped out after Ubuntu update
**Mar 13, 2024**  
Hi Cody,  
When I rebooted again, the system came back. I am able to connect.  
How to check whether the  
`sudo apt-get install lambda-stack-cuda` is complete?  
When I do  
`sudo apt-cache policy lambda-stack-cuda` I get  
  
Also when I checked tensorflow and torch versions I see the following:

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## Lambda Stack seems to be wiped out after Ubuntu update
**Mar 12, 2024**  
Just want to clarify.  
System LambdaBlade with Ubuntu 20.04:  
Is there a difference between the command here [Getting-started Removing and Installing Lambda-stack-in-ubuntu](https://docs.lambdalabs.com/software/lambda-stack-and-recovery-images)  
Uninstall (purge) the existing Lambda Stack by running:  
`sudo rm -f /etc/apt/sources.list.d/{graphics,nvidia,cuda}* && dpkg …`

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## Keyboard and Mouse not recognized when connected from a KVM switch
**Jan 3, 2023**  
Both keyboard and mouse connected via KVM switchs are not being recognized by some of the recent Lambda machines.  
Two instances:  
4 port KVM switch with HDMI + USB connections. It happened when I connected 3 Quads and 1 Vector via a 4 port KVM switch. The Vector machine doesn’t respond to when I …

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## Lambda Quad - How to Unbond NVLINK from P2P/SLI mode
**Dec 1, 2022**  
Any update?  
I have a blade system with 4 A6000.  
What does the below output mean?  
`$ nvidia-smi nvlink -gt d -i 0,1,2,3`  
GPU 0: NVIDIA RTX A6000 (UUID: GPU-938d731b-…)  
Link 0: Data Tx: 63,654,019,510 KiB  
Link 0: Data Rx: 7,631,152,229 KiB

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## Unable to determine the device handle for GPU, GPU is lost. Reboot the system to recover this GPU
**Sep 14, 2022**  
As per the tech support, reboot did the trick.  
Hope this is not a persistent vibration related issue.  
-Karun

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## Unable to determine the device handle for GPU, GPU is lost. Reboot the system to recover this GPU
**Sep 14, 2022**  
I have a lambda blade server with 8 x RTX 3090s. Today I lost one of the GPUs.  
Here is the message that I receive for  
`$ nvidia-smi -i 4`  
Unable to determine the device handle for GPU 0000:81:00.0: GPU is lost. Reboot the system to recover this GPU  
Any one has this issue? Will reboot fix it or it…

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## BERT Multi-GPU TensorFlow and Horovod for prediction - no improvement
**Aug 31, 2022**  
We have noticed a similar issue with PyTorch version of Transformer for NLP.  
This is the system config:  
It is a Lambda blade server with 8 RTX 3090 GPUs, NVIDIA Driver Version: 460.56, CUDA Version: 11.2.  
Ubuntu 20.04 LTS, Dual AMD EPYC 7302 16-Core CPUs, 512GB of RAM.  
We did a quick profiling o…

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## How to install libcudnn.8 Ubuntu 20.04 NVIDIA-SMI 460.56 Driver Version: 460.56 CUDA Version: 11.2
**Aug 5, 2022**  
Got it:  
Followed this [python - "Could not load dynamic library 'libcudnn.so.8'"...](https://stackoverflow.com/questions/66977227/could-not-load-dynamic-library-libcudnn-so-8-when-running-tensorflow-on-ubun)  
Steps are:  
`wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64/cuda-ubuntu2004.pin`  
`sudo mv cuda-ubuntu2004.pin /etc/apt/preferences…`

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## How to install libcudnn.8 Ubuntu 20.04 NVIDIA-SMI 460.56 Driver Version: 460.56 CUDA Version: 11.2
**Aug 5, 2022**  
How to install libcudnn8?  
TensorFlow is generating error message and I cannot find the package via  
`ldconfig -p | grep libcudnn`

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## Dist-upgrade does not upgrade to Cuda 11.1
**May 4, 2022**  
Just a hunch, but I’m thinking there still might be some python*-*dev packages installed that are blocking this.  
Can you send me the output of  
`dpkg -l | grep python`  
`$ dpkg -l | grep python | grep minimal`  
ii libpython2.7-minimal:amd64 2.7.18-1~20.04.1 amd64 …

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## Dist-upgrade does not upgrade to Cuda 11.1
**May 3, 2022**  
After I upgraded (with several hoops and tries) to Ubuntu 20.04 Desktop (from 18.04) via  
`sudo sed -i ‘/^AutomaticLoginEnable/ s/true/false/’ /etc/gdm3/custom.conf && sudo apt -y update && sudo apt -y dist-upgrade && sudo do-release-upgrade -d -f DistUpgradeViewNonInteractive`  
And then rebooted and…

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## How to replace the SSD in LambdaQuad?
**Jan 28, 2022**  
I meant `smartctl --all /dev/nvme0n1p2` says the  
SMART overall-health self-assessment test result: PASSED

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## How to replace the SSD in LambdaQuad?
**Jan 28, 2022**  
I am in a situation where the main SSD in my LambdaQuad (4 GPU workstation server) is in danger of dying.  
I see the following error message once in a while:  
`EXT4-fs error device nvme0n1p2 ext4-find-entry:1455 inode: nnnnnn`  
System_Journal ID [nnn]: Failed to write entry…  
It is giving me warnings about the SSD.

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## GPU Utilization log/summary
**Sep 21, 2020**  
`nvidia-smi` and related API can help us look at the current utilization of GPU Usage and Memory usage. Is there a tool or utility that can continuously log and give a summary of usage over a given time period like a day or a week?  
Thanks,  
-Karun
