Modify BIOS settings on r6525

[江立中]

Dear Cloudlab admin,

I'm conducting experiments on r6525 (https://www.cloudlab.us/status.php?uuid=547e7a54-3538-11ef-9f39-e4434b2381fc). I need to make some changes in BIOS settings, but I don't have the privilege to do that. Would it be possible for you to help me change it?

First, please enable SEV-SNP as mentioned in this post: https://groups.google.com/g/cloudlab-users/c/FdUFfwI0Tb0/m/Tk2JB2yNAQAJ

Second, please modify the settings below:
Memory Settings ->
    Memory Interleaving: Disable
Processor Setting ->
    “All Prefetchers”: Disable
System Profile Settings ->
    System Profile: Custom
    CPU Power Management: OS DBPM
    Memory Frequency: Maximum Performance
    Turbo Boost: Disable
    C States: Disable

    Memory Patrol Scrub: Disable
    Determinism Slider: Performance Determinism
    Algorithm Performance Boost Disable (ApbDis): Enable
    ApbDis Fixed Socket P-State: P2

The machine is currently idle, so you can make the changes at any time.
Thank you in advance.

Sincerely,
Li-Chung

[Mike Hibler]

Before I do this, can you reinstantiate your profile using the
UBUNTU22-64-STD image instead of the UBUNTU22-64-BETA image? The latter
is actually quite old and not supported. You were probably misled by the
"BETA" name thinking it was the cutting edge image, but it is not. It is
actually the first Ubuntu 22 image we got working 18 months ago. You should
always use the -STD version of an image if it is available.

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[江立中]

Sure. 

I just launched another experiment that uses the UBUNTU22-64-STD image (https://www.cloudlab.us/status.php?uuid=1dbbd97e-374c-11ef-9f39-e4434b2381fc). 

Please modify the BIOS settings for this one. I will use this machine to do my work.

Thanks!

[Mike Hibler]

I think the BIOS is fixed for this node (clnode286). There may have been
other issues we ran into related to Grub in the system image, but give it
a try and see if SEV is enabled now.

> cloudlab-users/21531a7b-4a3f-4f02-b0d8-d89783c2e048n%40googlegroups.com.