gpu24 and gpu25 added to the cluster

[Predrag Punosevac]

Dear Autonians,

I just finished provisioning two new GPU nodes. The purchase was approved
by Dr. Schneider in July but the order was not placed until late August due
to CMU internal issues just in time to be affected by supply chain
disruption. The servers were finally shipped on 11/24/2021
and received last Wednesday 12/8/2021. To add the final insult to the
injury the nodes were not tagged until Monday afternoon. I had literally to
hunt down people to do the work.
I spent half a day yesterday getting power cables and other misc supplies.
Thus they are only done today. However, I think they are definitely worth
the trouble.

Each server comes with 8 NVIDIA RTX A6000 connected by high-speed GPU
interconnect NVIDIA links beside PCIe. Each server has 2 AMD EPYC 7502
32-Core Processors for a total of 128 threads per server. These CPUs are
almost as fast as your desktop processors 3.5 GHz.
Each server has 512GB of RAM and 2TB of scratch. These servers have 24 2'5"
HDD bays so they could potentially be used as a storage space. I don't have
2'5" HDDs in the lab right now to populate the bays.

There is one thing which is for now done suboptimally. Namely the servers
were shipped with 1Gbs copper NIC and 10Gbs fiber optical NIC. I could not
locate long enough optical cables in our lab yesterday but I will try to
address this issue soon. I have exactly 2 optical connectors on the switch
so it is down to cabling.

Have fun and sorry for a long delay.

Predrag
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.srv.cs.cmu.edu/pipermail/autonlab-users/attachments/20211215/77d02859/attachment.html>