DeltaAI tripled NCSA's AI compute power, and offers a combined 152 CPU and GPU nodes. It is designed to target the computational needs of Artificial Intelligence/Machine Learning (AI/ML) workloads.
Login to DeltaAI
Login setup
To setup your login on NCSA, you will create your own NCSA account and use that. NCSA will reach out to you via email with your NCSA username. You should follow the link listed in that email to set up your NCSA password and register for DUO 2FA as well.
Note that DeltaAI doesn’t support SSH keys for logging in. Therefore, when you setup your 2FA, be sure to save the backup codes that it lists for you. If you are not prompted for these, open https://identity.ncsa.illinois.edu/manage, select Manage DUO, and you will receive your login codes.
SSH Login
$ ssh <your_username>@dtai-login.delta.ncsa.illinois.edu
File Transfer
For large transfers, DeltaAI recommends using Globus. For smaller transfers, they recommend SCP or Rsync.
| Supported Methods | Data Transfer Node | URL |
|---|---|---|
| GLOBUS | RECOMMENDED | https://app.globus.org/?_gl=1*cc427t*_ga*MTUyMjUyMjE3MC4xNzc0MjkwMTQ3*_ga_7ZB89HGG0P*czE3NzQyOTAxNDckbzEkZzAkdDE3NzQyOTAxNDckajYwJGwwJGgw | |
| RSYNC | RECOMMENDED | dtai-login.delta.ncsa.illinois.edu | https://dtai-login.delta.ncsa.ilinois.edu |
| SCP | RECOMMENDED | dtai-login.delta.ncsa.illinois.edu | https://dtai-login.delta.ncsa.ilinois.edu |
Storage
File System
| Directory | Path | Quota | Purge | Backup | Notes |
|---|---|---|---|---|---|
| HOME | /u | 90 GB, 600,000 files per user | No | Area for software, scripts, job files, and so on. Not intended as a source or destination for I/O during jobs. | |
| Projects | /projects | 500 GB, up to 1-25 TB by allocation | No | Area for shared data for a project, common data sets, software, results, and so on. | |
| Work - HDD | /work/hdd | 1000 GB, Up to 1-100 TB by allocation | No | Area for computation, largest allocations, where I/O from jobs should occur. Will be shared between Delta and DeltaAI. | |
| WORK - NVME | /work/nvme | 1000 GB, Up to 1-100 TB by allocation | No | Area for computation, NVME is best for lots of small I/O from jobs. Will be shared between Delta and DeltaAI. | |
| /tmp | /tmp | 3.9 TB | After each job | Locally attached disk for fast small file I/O. |
External Storage
For large data transfers, Globus is recommended. For smaller transfers, SCP or Rsync are recommended.
Helpful Commands: The quota command is useful for viewing your usage of file systems quota The accounts command is useful for mapping ACCESS projects to local projects on DeltaAI accounts
Jobs
Slurm Batch Environment - Additional information available at Running Jobs — UIUC NCSA DeltaAI User Guide
Queue specifications
| Name | Purpose | CPUs | GPUs | RAM | Jobs
30 days
|
Wait Time
30-day trend
|
Wall Time
30-day trend
|
|---|---|---|---|---|---|---|---|
| ghx4* | 4 Nvidia super chips and 1 ARM based CPU per node | 1 H100 per node | 3,500 GB per node | — | — | — |