SeaWulf | Research Computing & Informatics

SeaWulf is Stony Brook's general-purpose cluster: hundreds of CPU nodes, high-bandwidth and high-memory nodes, and A100 GPUs, open to the campus community and Brookhaven Lab staff.

400+compute nodes

23,000CPU cores

1.86PFLOP/s peak performance

3 TBRAM on the largest nodes

Get connected

In your browser

Open OnDemand

Jupyter, RStudio, MATLAB, a full desktop and 14 more apps, with nothing to install. Sign in with your NetID and Duo.

Launch Open OnDemand

From a terminal

SSH

The milan login nodes reach most queues. Use login.seawulf.stonybrook.edu for the 28-core and older GPU nodes, and xeonmax for HBM.

ssh <netid>@milan.seawulf.stonybrook.edu

Windows setup, Duo tips and every login address: Connecting to the cluster.

Specifications

Node type	Details
40-core Intel Skylake	192 GB memory per node, AVX-512
96-core AMD EPYC Milan	256 GB memory per node, AVX2
High-bandwidth memory	Intel Sapphire Rapids, 256 GB DDR5 plus 128 GB HBM (one 1 TB node)
A100 GPU nodes	4 NVIDIA A100 80 GB GPUs per node, 64-core Ice Lake, 256 GB memory
High-memory nodes	Up to 3 TB RAM
28-core Intel Haswell	128 GB memory per node (legacy)
Older GPU nodes	K80, P100 and V100 (legacy)

Which queue?

Your job	Try this queue
A quick test, under 1 hour	`debug-40core`
A few cores, not a whole node	`short-40core-shared` or `short-96core-shared`
Whole nodes, up to 4 hours	`short-40core` or `short-96core`
Up to 12 hours	`medium-40core` or `medium-96core`
Up to 2 days	`long-40core` or `long-96core`
Up to 7 days, 1 to 2 nodes	`extended-40core` or `extended-96core`
Needs a GPU	`a100`, or NVwulf for large AI work

Every queue, its limits and where to submit it from: Queue selection guide. Or let the job script builder write the script.

Storage

Space	Size	Backed up	Good to know
Home `/gpfs/home/<netid>`	20 GB	Yes	Scripts, settings and small files
Scratch `/gpfs/scratch/<netid>`	20 TB	No	Files older than 45 days are deleted
Project `/gpfs/projects/<group>`	Up to 10 TB	No	Shared by your group, on request

Details and how to ask for project space: Storage layout & policies.

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Best suited for

Physics and climate science
Bioinformatics and materials science
Machine learning and AI
Engineering and data science

Getting access

Join a projectIf your PI already has a SeaWulf project, open a ticket with the help topic "Request an account for SeaWulf" and include your NetID, your PI's name and the project number.
How to request an account
Or start one (faculty)Faculty request a project number with a one-page PDF describing the work, computing needs, software, storage and group members.
Request a project number
Set up Duo, then connectEvery login needs a Duo approval. Then sign in with Open OnDemand or SSH and run your first job.
Duo setup Quick start guide