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Artwork for The Software Frontier

Where abstraction ends. Essays on GPU execution, kernel internals, and distributed systems at scale.

Platform
Substack
PricingFreemiumPublishesTwice weekly
Issues101Founded2 years agoLast Issue7 days ago
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Artwork for The Software Frontier

Latest Issues

The Router and the Wire

The cost did not vanish. It moved.

Every few months the inference market tells itself a story about where the money goes, and every few months the story is wrong in the same direction. For two years the story was memory.

The key-value...

7 days ago
8

Decode Is Memory-Bound. Speculation Is the Arbitrage

Introduction

Rent a B200 for an hour and you are paying for roughly four and a half thousand trillion floating-point operations per second. Ask it to generate text from a seventy-billion-parameter model one user at a time, and for most...

12 days ago
4

The Split and the Seam

Intro

On Monday, January 27, 2025, NVIDIA lost about 600 billion dollars of market value in a single trading session, a 17 percent fall that stands as the largest one-day market-capitalization loss in the history of US public markets. I...

16 days ago
4

We wrote the CUDA reference we could not find

We have both lost more hours than we want to admit to questions that should have a clean answer. Here is one.

On Hopper, a WGMMA sources its operands from shared memory and registers. On Blackwell, the new UMMA instruction can read its A o...

17 days ago
4

The Kill Switch Was in the Mail

Introduction

At 5:21pm Eastern on Friday, June 12, Anthropic received a letter. By midnight, the company had switched off the two most capable models it had ever released, for every customer on earth.

The letter came from the Departmen...

18 days ago
7
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Authors

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  • Lorenzo Bradanini

    Self-taught software engineer skilled in data science, software engineering, ML, and cryptography, focused on developing innovative solutions to complex challenges.

  • Lorenzo Tettamanti

    BSc Physics student at the University of Milan. Interested in Machine Learning | Computational Physics | Artificial Intelligence | Physics Simulations

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