UVA compute_resources [Computing Support]

Computing Resources

The CS Dept. deploys general purpose compute and GPU compute servers, as well as specialized GPU servers. We also have database, NX/Nomachine (remote Linux desktop), a Windows desktop server, and a docker server. This section describes the general use and research use servers (see other sections for database and other server information).

portal load balanced servers

The portal servers are general purpose servers into which anyone can login. They are available for general use. They are also the “jump off” point for off Grounds connections to the CS network. The servers are in a load balanced cluster, and are accessed through ssh to portal.cs.virginia.edu. See: The portal cluster

Use these servers to code, compile, test, etc.. However these are not meant for long running processes that will tie up resources. Computationally expensive processes should be run on other servers listed below.

All GPU, Memory, CPU, etc. counts are per node.

Hostname	Memory (GB)	CPU Type	CPUs	Cores/CPU	Threads/Core	Total Cores
portal[01-06]	132	Intel	1	8	2	16

GPU servers

The gpusrv* servers are general purpose servers that contain GPUs into which anyone can login (via 'ssh'). They are intended for code development, testing, and short computations. Long running computations are discouraged, and are better suited to one of the GPU servers controlled by the job scheduler (see the next section).

All GPU, Memory, CPU, etc. counts are per node.

Hostname	Memory (GB)	CPU Type	CPUs	Cores/CPU	Threads/Core	Total Cores	GPUs	GPU Type	GPU RAM (GB)
gpusrv[01-08]	256	Intel	1	10	2	20	4	Nvidia RTX 2080Ti	11
gpusrv[09-16]	512	Intel	2	10	2	40	4	Nvidia RTX 4000	8

Nodes controlled by the SLURM Job Scheduler

See our main article on Slurm for more information.

These servers are available by submitting a job through the SLURM job scheduler. They are not available for direct logins via 'ssh'. However, users can login to these servers without a job script using the 'srun -i' direct login command. See the SLURM section for more information.

Per CS Dept. policy, servers are placed into the SLURM job scheduling queues and are available for general use. Also, per that policy, if a user in a research group that originally purchased the hardware requires exclusive use of that hardware, they can be given a reservation for that exclusive use for a specified time. Otherwise, the systems are open for use by anyone with a CS account. This policy was approved by the CS Dept. Computing Committee comprised of CS Faculty.

This policy allows servers to be used when the project group is not using them. So instead of sitting idle and consuming power and cooling, other Dept. users can benefit from the use of these systems.

All GPU, Memory, CPU, etc. counts are per node. This list may not be up to date. Use the 'sinfo' command for current server inventory.

Hostname	Mem (GB)	CPU	#CPUs	Cores	Threads	Total Threads	GPUs	GPU Type	GPU RAM (GB)
adriatic[01-06]	1024	Intel	2	8	2	32	4	Nvidia RTX 4000	8
affogato[11-15]	128	Intel	2	8	2	32	4	Nvidia GTX1080Ti	11
ai[01-06]	64	Intel	2	8	2	32	4	Nvidia GTX1080Ti	11
cheetah01	256	AMD	2	8	2	32	4	Nvidia A100	40
cheetah[02-03]	1024(2)	Intel	2	18	2	72	2	Nvidia RTX 2080Ti	11
cortado[01-10]	512	Intel	2	12	2	48	0
doppio[01-05]	128	Intel	2	16	2	64	0
hydro	256	Intel	2	16	2	64	0
lotus	256	Intel	2	20	2	80	8	Nvidia RTX 6000	24
lynx[01-04]	64	Intel	4	8	2	32	4	Nvidia GTX1080Ti	11
lynx[05-07]	64	Intel	4	8	2	32	4	Nvidia P100	16
lynx[08-09]	64	Intel	4	8	2	32	3	ATI FirePro W9100	32
lynx10	64	Intel	4	8	2	32	3	Nvidia GTX1080	8
lynx[11,12]	64	Intel	4	8	2	32	4	Nvidia Titan X	12
optane01	512(1)	Intel	2	16	2	64	0
ristretto[01-04]	128	Intel	2	6	1	12	8	Nvidia GTX1080Ti	11
sds[01-02]	512	Intel	2	10	2	40	4	Nvidia RTX A4000	16
slurm[1-5](3)	512	Intel	2	12	2	24	0

(1) Intel Optane memory

(2) In addition to 1TB of DDR4 RAM, these servers also house a 900GB Optane NVMe SSD and a 1.6TB NVMe regular SSD drive

(3) All users have 'sudo' privileges to execute /usr/bin/docker on these nodes

Job Scheduler Queues

See our main article on Slurm for more information on using queues (“partitions”)

Queue	Nodes
main	cortado[01-10], doppio[01-05], hydro, optane01, slurm[1-5]
gpu	adriatic[01-06], affogato[11-15], ai[01-06], cheetah[01-03], lotus, lynx[01-12], ristretto[01-04], sds[01-02]

Group specific computing resources

Several groups in CS deploy servers that are used exclusively by that group. Approximately 40 servers are deployed in this fashion, ranging from traditional CPU servers to specialized servers containing GPU accelerators.

Docker Server

See our main article on Docker for more information.

The Docker server on hostname 'docker01' is currently available to all department members. Docker containers can also be created on nodes slurm[1-5].