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Sam Foreman's personal site. Vim-style keybinds for navigation; theme + font pickers below.

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about: Sam Foreman docs/test: Docs Test ideas: 💡 Ideas about/more: 🪪 More now: Now more: ➕ More posts: 📬 Posts projects: 📚 Projects talks: 🎙️ Talks webtui: Style posts/2025: 📆 2025 posts/auroragpt: 🤖 AuroraGPT posts/ai-for-physics: ⚛️ AI for Physics posts/dope-slides: 💅 How to Make Dope Slides posts/ezpz-at-alcf: 🍋 ezpz @ ALCF posts/ezpz-v1: 📝 ezpz-v1 posts/jupyter: 📗 Jupyter posts/resume: 🧑🏻‍💻 Sam Foreman’s Résumé posts/svgbob: 🫥 svgbob posts/torchtune-aurora: 🪛 Torchtune on Aurora posts/torchtune-patch-aurora: 🚑 Torchtune Patch on Aurora talks/auroragpt-siam25: AuroraGPT talks/ai-for-science-2024: Parallel Training Methods talks/aurora-gpt-fm-for-electric-grid/auroragpt-fm-for-electric-grid: AuroraGPT: Foundation Models for Science talks/hpc-user-forum/auroragpt: AuroraGPT talks/alcf-hpc-workshop-2024/alcf-hpc-workshop-2024: Deep Learning and Foundation Models at Scale talks/demo-slides: AuroraGPT: Training Foundation Models on Supercomputers talks/incite-hackathon-2025: ALCF Incite Hackathon 2025 talks/llms-at-scale: Training LLMs at Scale talks/llms-on-polaris: Training LLMs on Polaris talks/openskai25: Open SkAI2025 webtui/components/accordion: Accordion webtui/components/badge: Badge webtui/components/button: Button webtui/components/checkbox: Checkbox webtui/components/dialog: Dialog webtui/components/input: Input webtui/components/popover: Popover webtui/components/pre: Pre webtui/components/progress: Progress webtui/components/radio: Radio webtui/components/range: Range webtui/components/separator: Separator webtui/components/spinner: Spinner webtui/components/switch: Switch webtui/components/table: Table webtui/components/textarea: Textarea webtui/components/tooltip: Popover webtui/components/typography: Typography webtui/components/view: View webtui/contributing/contributing: Contributing webtui/contributing/contributing: ## Local Development webtui/contributing/contributing: ## Issues webtui/contributing/contributing: ## Pull Requests webtui/contributing/style-guide: Style Guide webtui/contributing/style-guide: ## CSS Units webtui/contributing/style-guide: ## Selectors webtui/contributing/style-guide: ## Documentation webtui/installation/astro: Astro webtui/installation/astro: ## Scoping webtui/installation/astro: ### Frontmatter Imports webtui/installation/astro: ### <style> tag webtui/installation/astro: ### Full Library Import webtui/installation/nextjs: Next.js webtui/installation/vite: Vite webtui/start/ascii-boxes: ASCII Boxes webtui/start/changelog: Changelog webtui/start/installation: Installation webtui/start/installation: ## Installation webtui/start/installation: ## Using CSS webtui/start/installation: ## Using ESM webtui/start/installation: ## Using a CDN webtui/start/installation: ## Full Library Import webtui/start/installation: ### CSS webtui/start/installation: ### ESM webtui/start/installation: ### CDN webtui/start/intro: Introduction webtui/start/intro: ## Features webtui/start/plugins: Plugins webtui/start/plugins: ## Official Plugins webtui/start/plugins: ### Themes webtui/start/plugins: ## Community Plugins webtui/start/theming: Theming webtui/start/theming: ## CSS Variables webtui/start/theming: ### Font Styles webtui/start/theming: ### Colors webtui/start/theming: ### Light & Dark webtui/start/theming: ## Theme Plugins webtui/start/theming: ### Using Multiple Theme Accents webtui/start/tuis-vs-guis: TUIs vs GUIs webtui/start/tuis-vs-guis: ## Monospace Fonts webtui/start/tuis-vs-guis: ## Character Cells webtui/plugins/plugin-nf: Nerd Font Plugin webtui/plugins/plugin-dev: Developing Plugins webtui/plugins/plugin-dev: ### Style Layers webtui/plugins/theme-catppuccin: Catppuccin Theme webtui/plugins/theme-custom: Custom Theme webtui/plugins/theme-everforest: Everforest Theme webtui/plugins/theme-gruvbox: Gruvbox Theme webtui/plugins/theme-nord: Nord Theme webtui/plugins/theme-vitesse: Vitesse Theme posts/2025/06: 06 posts/auroragpt/aurora-gpt: 🏎️ Megatron-DeepSpeed on Intel XPU posts/auroragpt/determinstic-flash-attn/deterministic-flash-attn: 🎰 Deterministic `flash-attn` posts/auroragpt/flash-attn-sunspot: 📸 `flash-attn` on Sunspot posts/auroragpt/long-sequences: 🚂 Loooooooong Sequence Lengths posts/auroragpt/checkpoints: 💾 Converting Checkpoints posts/auroragpt/spike-skipper: 🏔️ Spike Skipper posts/auroragpt/mpi4py-reproducer: 🐛 `mpi4py` bug on Sunspot posts/auroragpt/startup-times: 🐢 Starting Up Distributed Training on Aurora posts/auroragpt/startup-times: ## Response posts/auroragpt/startup-times: ### Measuring / Calculating Startup Time posts/auroragpt/startup-times: ## Minimal Working Example posts/ai-for-physics/diffusion: 🎲 MCMC + Diffusion Sampling posts/ai-for-physics/l2hmc-qcd: 🎢 L2HMC for LQCD posts/jupyter/test: 🏁 `l2hmc` Example: 2D $U(1)$ talks/auroragpt/alcf-hpc-workshop-2024/auroragpt-alcf-hands-on-hpc-workshop-2024: AuroraGPT: ANL's General Purpose Scientific LLM posts/jupyter/l2hmc-4dsu3: 🔳 `l2hmc-qcd` Example: 4D SU(3) talks/incite-hackathon-2025/auroragpt: LLMs on Aurora: Overview talks/incite-hackathon-2025/ezpz: LLMs on Aurora: Hands-On talks/openskai25/ai4science: Scientific AI at Scale: AuroraGPT posts/2025/04/28: 🔥 Building PyTorch 2.6 from Source on Aurora talks/openskai25/training: Scientific AI at Scale: Distributed Training posts/2025/05/03: 🚧 Frameworks Issue with numpy \> 2 posts/2025/06/01: 📰 Nice Headings posts/2025/10/06: 🎨 Mixing Between Distributions While Training posts/2025/06/14: 🏗️ Building PyTorch 2.8 from Source on Aurora posts/2025/09/12: 🍹 BlendCorpus + TorchTitan @ ALCF posts/2025/11/12: 🧊 Cooling Down Checkpoints: Best Practices for Model Evaluation posts/2026/01/10: 🍋 ezpz: distributed PyTorch across any hardware posts/2025/06/02: 🧜‍♀️ Mermaid posts/2025/09/17: 📊 `pbs-tui`: TUI for PBS Job Scheduler Monitoring posts/2026/05/01: Running 50k Python Processes on Aurora with ezpz yeet posts/2026/05/01: ## What it does posts/2026/05/01: ## CLI surface posts/2026/05/01: ### Choosing a local copy method posts/2026/05/01: ### Tarball source posts/2026/05/01: ### Generic (non-venv) sources posts/2026/05/01: ## How it works posts/2026/05/01: ### Local copy + patch posts/2026/05/01: ### Greedy fan-out posts/2026/05/01: ## Scaling on Aurora: 8 → 4096 nodes posts/2026/05/01: ### Two regimes posts/2026/05/01: ### Why tarball broadcast scales so much better than per-file rsync posts/2026/05/01: ## Reproducing posts/2026/05/01: ## Complete workflow posts/2026/05/01: ## See also posts/2026/01/07: 🎉 Happy New Year! posts/2026/02/28: ⏱️ Comparing Launchers on Aurora posts/2026/02/28: ## torchrun posts/2026/02/28: ## ezpz posts/2026/04/27: Pre-Training AuroraGPT with TorchTitan posts/2026/04/27: ## Two-Week Summary (Apr 12–27, 2026) posts/2026/04/27: ## Detailed Breakdown posts/2026/04/27: ### Week 1: Apr 12–18 — Benchmarking, LR Finder, XPU Fixes posts/2026/04/27: #### Benchmarking (Apr 12–15) posts/2026/04/27: #### LR Finder (Apr 12–14) posts/2026/04/27: #### Scaling Study (Apr 12) posts/2026/04/27: #### Upstream Syncs (Apr 12–18, syncs 6–14) posts/2026/04/27: #### XPU Bug Fixes (Apr 18) posts/2026/04/27: #### RL Experiment (Apr 18) posts/2026/04/27: ### Week 1.5: Apr 18–25 — Production Readiness posts/2026/04/27: #### Torch 2.12 Benchmarks (Apr 18) posts/2026/04/27: #### LR Finder Extensions (Apr 20–21) posts/2026/04/27: #### XPU Fixes (Apr 23) posts/2026/04/27: #### Torch 2.13 Environment (Apr 25) posts/2026/04/27: #### 2B Scaling Study on Torch 2.13 (Apr 25) posts/2026/04/27: #### Production Training (Apr 25) posts/2026/04/27: ### Week 2: Apr 26–27 — Optimizer Competition posts/2026/04/27: #### RL Multi-Task Refactor (Apr 26) posts/2026/04/27: #### Docs Reorganization (Apr 26) posts/2026/04/27: #### Generic HF Dataset Streaming (Apr 26) posts/2026/04/27: #### New Optimizers (Apr 26) posts/2026/04/27: #### Architecture Tweaks (Apr 26–27) posts/2026/04/27: ## Competition Results posts/2026/04/27: ### Round 1–3: Speedrun — 2N, GBS=48, 1000 steps posts/2026/04/27: ### 10B Full Training — 8N, GBS=384, ~3,178 steps posts/2026/04/27: ### Round 4: Reproducible Speedrun — 2N, GAS=8, GBS=384, 1000 steps posts/2026/04/27: ## Key Discoveries posts/2026/04/27: ## Infrastructure Built posts/2026/04/27: ## High-Level posts/2026/04/27: ## Detailed Breakdown posts/2026/04/27: ### Week 1: Apr 12–18 — Benchmarking, LR Finder, XPU Fixes posts/2026/04/27: #### Benchmarking (Apr 12–15) posts/2026/04/27: #### LR Finder (Apr 12–14) posts/2026/04/27: #### Scaling Study (Apr 12) posts/2026/04/27: #### Upstream Syncs (Apr 12–18, syncs 6–14) posts/2026/04/27: #### XPU Bug Fixes (Apr 18) posts/2026/04/27: #### RL Experiment (Apr 18) posts/2026/04/27: ### Week 1.5: Apr 18–25 — Production Readiness posts/2026/04/27: #### Torch 2.12 Benchmarks (Apr 18) posts/2026/04/27: #### LR Finder Extensions (Apr 20–21) posts/2026/04/27: #### XPU Fixes (Apr 23) posts/2026/04/27: #### Torch 2.13 Environment (Apr 25) posts/2026/04/27: #### 2B Scaling Study on Torch 2.13 (Apr 25) posts/2026/04/27: #### Production Training (Apr 25) posts/2026/04/27: ### Week 2: Apr 26–27 — Optimizer Competition posts/2026/04/27: #### RL Multi-Task Refactor (Apr 26) posts/2026/04/27: #### Docs Reorganization (Apr 26) posts/2026/04/27: #### Generic HF Dataset Streaming (Apr 26) posts/2026/04/27: #### New Optimizers (Apr 26) posts/2026/04/27: #### Architecture Tweaks (Apr 26–27) posts/2026/04/27: ## Competition Results posts/2026/04/27: ### Round 1–3: 1000-step speedruns, 2 nodes, GBS=48 (17 configs) posts/2026/04/27: ### Round 4 (10B full training, 8 nodes, GBS=384, 5 configs) posts/2026/04/27: ### Round 5 (2 nodes, GAS=8, GBS=384, local dataset, 8 configs — in progress) posts/2026/04/27: ## Key Discoveries posts/2026/04/27: ## Infrastructure Built posts/ai-for-physics/l2hmc-qcd/2du1: 🎢 l2hmc-qcd Example: 2D U(1) posts/jupyter/l2hmc/4dsu3: 🔳 l2hmc-qcd Example: 4D SU(3) talks/2025/10/08: AERIS: Argonne's Earth Systems Model posts/ai-for-physics/l2hmc-qcd/4dsu3nb/index-broken: 🕸️ l2hmc-qcd Example: 4D SU(3) talks/2025/10/15: Training Foundation Models on Supercomputers talks/2025/09/24: Training Foundation Models on Supercomputers talks/2025/10/24: Training Foundation Models on Supercomputers talks/2026/06/03: Production Pre-Training at Scale: The Good, the Bad, and the Restarts talks/2025/12/16: AuroraGPT: Training Foundation Models on Supercomputers posts/drafts/2025/09/22: 📝 2025 Annual Report
 Theme Current: Light j/k or ↑/↓ + Enter

Typography

The Typography stylesheet provides styles for headings and inline elements

Import

@import '@webtui/css/components/typography.css';

Usage

<h1>-<h6>

Headings

1 <h1>Heading 1</h1>
2 <h2>Heading 2</h2>
3 <h3>Heading 3</h3>
4 <h4>Heading 4</h4>
5 <h5>Heading 5</h5>
6 <h6>Heading 6</h6>

<p>

Paragraphs

1 <p>
2 Lorem Ipsum Dolor Sit Amet Consectetur Adipiscing Elit Sed Do Eiusmod Tempor Incididunt Ut Labore Et Dolore Magna
3 </p>

Inline Elements

Includes <strong>, <em>, <code>, and <a> tags

1 <p>
2 Lorem
3 <strong>Ipsum</strong>
4 <em>Dolor</em>
5 <code>Sit</code>
6 <a href="https://example.com">Amet</a>
7 </p>

<blockquote>

Block Quotes

1
2 <blockquote>
3 Lorem Ipsum Dolor Sit Amet
4 </blockquote>
5

<ol>

Ordered Lists

1
2 <ol>
3 <li>One</li>
4 <li>Two</li>
5 <li>Three</li>
6 </ol>
7

<ul>

Unordered Lists

1
2 <ul>
3 <li>One</li>
4 <li>Two</li>
5 <li>Three</li>
6 </ul>
7

<ul> Markers

Add the marker- attribute to a <ul> element to customize its list markers

<ul marker-="bullet">
    <ul marker-="tree"></ul>
</ul>
1
2 <ul>
3 <li>List</li>
4 <li>With</li>
5 <li><code>default</code> Markers</li>
6 </ul>
7 <ul marker-="bullet">
8 <li>List</li>
9 <li>With</li>
10 <li><code>bullet</code> Markers</li>
11 </ul>
12 <ul marker-="tree">
13 <li>List</li>
14 <li>With</li>
15 <li><code>tree</code> Markers</li>
16 </ul>
17

Use the open keyword at the start and/or end of the marker- attribute to leave the top/bottom tree markers open

<ul marker-="tree open">
    <ul marker-="open tree">
        <ul marker-="open tree open"></ul>
    </ul>
</ul>
1
2 <ul marker-="tree open">
3 <li>Tree</li>
4 <li>With</li>
5 <li><code>marker-="tree open"</code></li>
6 </ul>
7 <ul marker-="open tree">
8 <li>Tree</li>
9 <li>With</li>
10 <li><code>marker-="open tree"</code></li>
11 </ul>
12 <ul marker-="open tree open">
13 <li>Tree</li>
14 <li>With</li>
15 <li><code>marker-="open tree open"</code></li>
16 </ul>
17

[is-="typography-block"]

Apply typography styles to an element’s children

<div is-="typography-block">Typography block</div>

Scope

  • All HTML heading elements
  • paragraphs, blockquotes, lists, list items, elements with is-="typography-block" and their respective inline elements
h1,
h2,
h3,
h4,
h5 {
    /* ... */
}

ul {
    /* ... */
}
ol {
    /* ... */
}

p,
blockquote,
li,
[is-~='typography-block'] {
    /* ... */

    strong {
        /* ... */
    }
    a {
        /* ... */
    }
    code {
        /* ... */
    }
}

Hover Sandbox

A collection of hover-effect variants for body links. Each row uses a different animation for its <a> — hover or tab to one to compare.

hover sandbox
Spring overshoot: Hover the link — brackets snap into place from further out with a slight bounce.
Vim block-cursor: Hover the link — a colored block fills the link area, brackets follow.
Vertical drop: Hover the link — brackets fall into place from above.
Glitch flicker: Hover the link — brackets stutter through opacity before settling.
Shell prompt: Hover the link — a "$ " prompt appears before it, like the link is a command being typed.
Visual selection: Hover the link — block-character borders ░▒▓ sweep in like a vim visual-mode selection.
Underscore scan: Hover the link — a blinking underscore _ scans left-to-right under the text.
ANSI rainbow: Hover the link — characters flicker through ANSI colors then settle on the accent.
Angle brackets: Hover the link — angle brackets < > slide in from outside instead of square ones.
Pointer arrow: Hover the link — a "→" arrow appears pointing at it from the right margin.
Spring + rainbow: Hover the link — brackets spring in from wider out while the text cycles through ANSI colors and settles on accent.
Cursor + rainbow: Hover the link — a rainbow block sweeps across vim-cursor style, blinks, then brackets spring in.
Cursor + rainbow (text): Hover the link — text takes on the rainbow gradient as a vim cursor sweeps across, then brackets spring in.
Cursor + rainbow (cycling): Hover the link — rainbow block sweeps in, then keeps cycling colors while filled.
Cursor + spring: Hover the link — accent block sweeps across, blinks, then brackets spring in.
Cursor + spring (no blink): Hover the link — accent block sweeps across, then brackets spring in. No blink.
Visual-mode sweep (wrap-safe): Hover this long link that wraps across multiple lines of text intentionally so you can see the effect — vim visual-mode highlight wipes across cleanly even on wrap.
Block cursor at end (wrap-safe): Hover this long link that wraps across multiple lines of text intentionally so you can see the effect — a single blinking █ block cursor appears at the true end.
ASCII underline type-in (wrap-safe): Hover this long link that wraps across multiple lines of text intentionally so you can see the effect — an ASCII underline types in under every wrapped line.
Reverse-video flash (wrap-safe): Hover this long link that wraps across multiple lines of text intentionally so you can see the effect — fg/bg invert in vim-selection style.
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