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Arcus Background

How do I get an account?

Please send an email to Dr. Haberlie from your NIU account with the following information.

Required information for sign-up email

z-ID:

I am a (pick one): [EAE undergraduate student], [EAE graduate student], [EAE faculty], [NIU collaborator], [External collaborator]

I need access to ARCUS because ______________________________________.

If you are not in a course that requires ARCUS, what computational requirements do you need? Please provide a justification for large requests.

Arcus computing rules

Violating these rules will result in account suspension.

1. Do not share your account.

2. Do not store or process proprietary or personal data.

3. Do not disrupt normal server usage.

4. Do not use the server for unethical purposes.

5. Follow state and federal laws and the NIU code of conduct.

What computing resources are available?

Data Storage

Each user is provided a 32 GB data storage allocation in their home directory. If you need more space, there is shared “scratch” space that can be used to temporarily store data.

Allocation tiers

Each user is assigned an allocation tier based on their stated computational requirements. Memory usage (%) is indicated in the lower left part of the jupyter window.

If you exceed this limit, it is very likely your jupyter instance will stop working and you will get an error that says “Kernel Died Unexpectedly”.

This is not due to issues with Arcus, this is due to your program exceeding the memory limits of your tier.

TierCPU LimitRAM LimitGPU Access
Coursework1 CPU4 GBNo
Research4 CPUs16 GBNo
Research - GPU8 CPUs32 GBYes
SpecialBased on NeedBased on NeedBased on Need

Primary Projects

Harnessing the power of machine learning to generate ensembles of regional climate projectionsAlex Haberlie
Understanding and Mitigating Future Weather and Climate Risks to AgricultureWalker Ashley and Victor Gensini
Building Capacity and Reducing Barriers for Geoscience Students at Northern Illinois UniversityAllison Michaelis, Victor Gensini, and Alex Haberlie

Other Supported Projects

Center for Interdisciplinary Research on Convective Storms (CIRCS)Victor Gensini, Walker Ashley, and Alex Haberlie
Polarimetric Radar and Modeling Perspectives of Updraft, Cold Pool, and Mesovortex Evolution in Quasi-Linear Convective SystemsAlex Haberlie and Walker Ashley
Graduate and Undergraduate Student Projects

Server Information

ComponentSpecification
CPUAMD EPYC 9754 @ 2.25 GHz (128 Cores; 256 threads)
RAM12 × 128 GB = 1.536 TB total
GPU2 × NVIDIA L40S (48 GB each)
OS Drives7.68 TB NVMe SSD
AI Drives2 × 30.7 TB Gen5 NVMe SSD (>10 GB/s read/write)
Scratch Storage247.8 TB HDD (RAID 6)