charlesGodman

joined 1 year ago
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Data server. U2 connections in c/homelab@selfhosted.forum
[–] charlesGodman@alien.top 1 points 11 months ago

Thanks. From what I read, on a system with such a powerful cpu, it’s advisable to use software raid over hardware raid cards

Data server. U2 connections in c/homelab@selfhosted.forum
[–] charlesGodman@alien.top 1 points 11 months ago (2 children)

I didn’t realise there were Epyc cpus that are actually cheaper than threadripper. small epyc 7003 are the clear choice. Do you know any epyc boards that are made for storage systems?

Should I go with Ubuntu Server or TrueNAS Scale or something else? in c/homelab@selfhosted.forum
[–] charlesGodman@alien.top 1 points 11 months ago

I dont have input on your question. As someone owning a Samsung 870 QVO I can strongly recommend not buying it, though. Get EVO or something else. The sustained write on my QVO is abysmal.

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Data server. U2 connections (alien.top)
 

I was thinking the Ryzen Threadripper 7945WX (or equivalent 5000WX) Pro (smallest, 12 core) might make a great platform for a data server. The motherboards don’t have many u2 connections though (only one slimSAS). With 128 PCIe lanes I should be able to drive around 20 x4 NVMe drives. But how do I connect all the drives to the board? Are there dedicated u.2 expansion cards? Do I use 4x m2 x16 cards and m2 to u2 cables? I am interested in connecting it eg with some 100Gb/s connection to another server for deep learning.

[D] Simplest mathematical example of a function that can only be solved by gradient descent in c/machinelearning@academy.garden
[–] charlesGodman@alien.top 1 points 11 months ago

To be precise: linear regression with L2 loss and L1 regularization. L1 regression with L1 penalty can be solved using a linear program.

[D] What AI topics are you curious about but rarely see in the spotlight? in c/machinelearning@academy.garden
[–] charlesGodman@alien.top 1 points 1 year ago

There has been LOADS of research on deep learning optimisation in recent years. However, TLDR nothing beats ADAM.