Department Servers

Hydras

The Hydras are virtual based serves hosted in the Campus Cloud. They offer slightly higher stability and are better for smaller computing jobs.

Hardware Specifications

• Intel Xeon CPU
  • 12 cores @2.6Ghz
• 64GB of RAM (128GB on hydra7 and hydra8)
• NAS used for /home storage

Grafana Monitoring

Ghidorahs

The Ghidorahs are physical servers located throughout Baker Hall. They are designed for lighter GPU jobs.

Hardware Specifications

• Core i9-13900KF CPU
  • 8 performance cores @5.4Ghz
  • 16 Efficiency cores @4.3Ghz
• 64GB of RAM
• RTX 4090 24GB of video memory

Grafana Monitoring

Leviathans

The Leviathans are physical servers located throughout Baker Hall and the Cyert Data Center. They are designed for heavy CPU and RAM jobs.

Hardware Specifications

• AMD Ryzen 9 9950x
  • 16 cores @5.7Ghz
• 128GB of RAM (Leviathan1-6)
• 196GB of RAM (Leviathan7-11)
• 4TB of local NVME storage
  • Mounted at /scratch
  • Data stored in this location will only be accessible on the original server.

Grafana Monitor

Storage

Each server's "/home" directory located on the department's NAS. This means your files will be accessible on every server.

The NAS is a total of 100TB. This space is shared and monitored for fair usage. If you store large amounts of data, you may be asked if it is all necessary.

To see available space on the NAS, run the command below in a terminal on the server.

df -h | grep "/home"

To see your total usage run the command below. It may take a few minutes to finish

 du -sh ~

Using the Servers

Accessing the servers requires using an SSH compatible terminal. Applications such as "Command Prompt" on Windows or "Terminal" on MacOS can achieve this.

To SSH to a server, open either app listed previously and enter the SSH command shown below. Be sure to use your StatDS computing account.

ssh statdsusername@hydra1.stat.cmu.edu

In the line above, replace "hydra1" with the server you want to connect to.

Hydras	Ghidorahs	Leviathans
hydra1	ghidroah1	leviathan1
hydra2	ghidorah2	leviathan2
hydra3	ghidorah3	leviathan3
hydra4		leviathan4
hydra5		leviathan5
hydra6		leviathan6
hydra7		leviathan7
		leviathan8
		leviathan9
		leviathan10
		leviathan11

Software

The servers within Statistics & Data Science offer a variety of software. Sudo access, also referred to as the ability to install software, on department servers is not allowed. If a software package you would like to use is not listed below, please contact remarks@stat.cmu.edu.

	Hydras	Ghidorahs	Leviathans
Python	X	X	X
R	X	X	X
Apptainer	X	X	X
Quarto	X
Gurobi	X
Rstudio-Server	X		X
Matlab	X		X
Julia	X		X