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+ ---
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+ license: apache-2.0
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+ task_categories:
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+ - image-to-image
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+ tags:
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+ - physics
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+ - cfd
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+ - digital-twin
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+ - datacenter
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+ - surrogate-model
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+ - neural-operator
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+ - nvidia
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+ - physicsnemo
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+ pretty_name: "Boreas: Datacenter Digital Twin Surrogate Predictions"
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+ size_categories:
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+ - 1K<n<10K
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+ ---
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+
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+ # Boreas Data — Datacenter Digital Twin Surrogate Predictions
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+
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+ Prediction outputs from five neural surrogate models trained on [NVIDIA PhysicsNeMo-Datacenter-CFD](https://huggingface.co/datasets/nvidia/PhysicsNeMo-Datacenter-CFD) for **Project Boreas** (SJSU MSDA capstone, Spring 2026).
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+
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+ This dataset powers the [Boreas Omniverse Kit operator console](https://github.com/irangareddy/kit-app-template) — a custom NVIDIA Omniverse application with an LLM agent (GPT-4o) and Apple Vision Pro AR streaming.
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+
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+ ## Contents
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+
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+ | Folder | What | Count | Size each |
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+ |--------|------|-------|-----------|
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+ | test_data/inputs/ | 10-channel input tensors (80x96x960) | 10 | 282 MB |
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+ | test_data/targets/ | 5-channel CFD ground truth (80x96x960) | 10 | 141 MB |
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+ | outputs/predictions/ | Model predictions (5-ch, 80x96x960) | 50 | 141 MB |
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+ | stl/ | OpenFOAM datacenter geometry | 6 | < 1 MB |
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+ | results/ | Evaluation metrics JSON | 2 | < 1 MB |
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+
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+ **Total: 79 files, ~11 GB**
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+
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+ ## Five surrogate models
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+
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+ | Model | Family | Params | T MAE (C) | Inference (ms) |
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+ |-------|--------|--------|-----------|----------------|
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+ | **U-Net** | Spatial (CNN) | 22.6M | **0.205** | 177 |
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+ | PI-U-Net | Spatial + physics | 344K | 0.244 | 87 |
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+ | FNO | Spectral (FFT) | 28.3M | 0.489 | 636 |
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+ | PI-FNO | Spectral + physics | 28.3M | 0.505 | 674 |
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+ | Transolver | Transformer | 545K | 0.598 | 4,972 |
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+
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+ Trained at full resolution (960x96x80 = 7.37M points) on NVIDIA GB10 (Grace Blackwell, 128 GB).
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+
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+ ## File naming
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+
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+ Predictions: `outputs/predictions/sample_NNNN_MODEL.npy`
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+
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+ - NNNN = 0000-0009 (from PhysicsNeMo test split)
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+ - MODEL = unet, fno, pifno, pi_unet, or transolver
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+ - Shape: (5, 80, 96, 960) — channels: Ux, Uy, Uz, T, p (Z-score normalized)
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+
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+ ## Denormalization
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+
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+ | Field | Mean | Std | Unit |
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+ |-------|------|-----|------|
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+ | T | 39.0 | 4.0 | C |
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+ | Ux, Uy, Uz | 1.5984 | 1.3656 | m/s |
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+ | p | 6.1227 | 4.1660 | Pa |
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+
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+ To convert: `T_celsius = prediction[3] * 4.0 + 39.0`
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+
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+ ## Quick start with Kit app
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+
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+ ```bash
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+ git lfs install
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+ git clone https://huggingface.co/datasets/irangareddy/boreas-data ~/boreas-data
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+ git clone https://github.com/irangareddy/kit-app-template.git
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+ cd kit-app-template
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+ .\repo.bat build
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+ .\run_streaming.bat
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+ ```
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+
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+ ## Quick start in Python
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+
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+ ```python
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+ import numpy as np
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+
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+ gt = np.load("test_data/targets/sample_0000.npy")
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+ pred = np.load("outputs/predictions/sample_0000_unet.npy")
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+
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+ T_gt = gt[3] * 4.0 + 39.0
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+ T_pred = pred[3] * 4.0 + 39.0
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+ print(f"Temperature MAE: {abs(T_pred - T_gt).mean():.3f} C")
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+ ```
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+
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+ ## Source
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+
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+ Derived from [nvidia/PhysicsNeMo-Datacenter-CFD](https://huggingface.co/datasets/nvidia/PhysicsNeMo-Datacenter-CFD) (Apache 2.0).
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+
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+ ## Citation
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+
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+ ```bibtex
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+ @misc{boreas2026,
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+ title={Evaluating Neural Operator Architectures for Datacenter Digital Twin Surrogate Models},
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+ author={Nukala, Sai Ranga Reddy and Kankanala, Shaila Reddy and Singh, Sadhvi and Jonnalagadda, Akshith Reddy and Shim, Simon},
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+ year={2026},
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+ institution={San Jose State University},
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+ url={https://github.com/irangareddy/298AB}
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+ }
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+ ```
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+
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+ ## Links
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+
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+ - Research: [github.com/irangareddy/298AB](https://github.com/irangareddy/298AB)
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+ - Kit app: [github.com/irangareddy/kit-app-template](https://github.com/irangareddy/kit-app-template)
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+ - Source data: [nvidia/PhysicsNeMo-Datacenter-CFD](https://huggingface.co/datasets/nvidia/PhysicsNeMo-Datacenter-CFD)