RunMat Blog
Stories, insights, and updates from the RunMat development team
Durable Project State: Introducing RunMat Cloud
RunMat launched last August as a CLI. In November we added GPU acceleration with Accelerate. Now the sandbox puts the full runtime in your browser, and RunMat Cloud makes it persistent: projects, run history, version snapshots, and collaboration.
Mar 25, 2026
The Worst Debugging Tool in MATLAB Is the One You Use Every Day
fprintf is a formatting function that got conscripted into debugging because MATLAB never shipped anything better. Here's what it's actually for, what it costs you as a debugger, and what to use instead.
Mar 20, 2026
MATLAB For Loops Are Slow, But Not for the Reason You Think
MATLAB for loops are slow because of interpreter overhead, not because iteration is inherently expensive. Here's what actually causes the slowdown, what vectorization costs you, and how a compiled runtime changes the tradeoff.
Mar 19, 2026
MATLAB Alternatives 2026: Benchmarks & Compatibility Compared
We benchmarked 4 MATLAB alternatives on real engineering workloads — loop performance, GPU acceleration, and .m file compatibility. One runs existing scripts with zero rewrites.
Mar 13, 2026
Mission-Critical Math: The Full Platform Inside Your Airgap
RunMat brings modern scientific computing to airgapped environments. A single binary with GPU acceleration, real-time collaboration, AI-assisted analysis, and ITAR-aligned compliance -- all running offline.
Mar 10, 2026
Version Control for Engineers Who Don't Use Git
Most engineers -- from MATLAB scripting to FPGA verification to test automation -- don't use version control because git wasn't built for them. RunMat gives engineers automatic versioning, snapshots, and audit trails without the cognitive overhead of learning a developer tool.
Mar 10, 2026
From Ad-Hoc Checkpoints to Reliable Large Data Persistence
Why ad-hoc checkpoints break down for large numerical workloads, where persistence actually fails, and how chunked, content-addressed storage makes heavy outputs durable and shareable.
Mar 5, 2026
Restoring Historical Run State for Scientific and Numerical Calculations
A practical guide to restoring historical run state for scientific and numerical workflows, so teams can investigate issues without expensive re-execution.
Mar 5, 2026
How to Use NVIDIA GPUs in MATLAB: Setup, Traps & a Toolbox-Free Option
Step-by-step NVIDIA GPU setup for MATLAB: prerequisites, gpuArray patterns, performance traps that silently kill your speedups, and how to get GPU acceleration without the Parallel Computing Toolbox.
Feb 20, 2026
Why We Built RunMat
We started with Dystr, an AI-powered engineering workbook. Here's why we pivoted to RunMat, a fast, open-source MATLAB runtime that meets engineers where they are.
Feb 2, 2026
In Defense of MATLAB: Why Engineers Still Need Whiteboard-Style Code
MATLAB still shines for math-heavy work. Its whiteboard-style syntax makes code easy to read, review, and run on modern tools like RunMat and fast GPUs.
Dec 11, 2025
Introducing RunMat Accelerate: The Fastest Runtime for Your Math
RunMat Accelerate is an open-source MATLAB-style runtime that fuses your array math into fast CPU and GPU kernels, often beating MATLAB gpuArray, PyTorch, and Julia for dense numerical workloads.
Nov 18, 2025
Choosing Rust for LLM-Generated Code
Why the training distribution of programming languages matters for LLMs, and how Rust improves reliability in model-written code.
Sep 12, 2025
Introducing RunMat: A Fast, Free, Modern MATLAB Code Runtime
A fast, open-source runtime for MATLAB code. Slim core written in Rust, V8-inspired execution, generational GC, and a package-first standard library.
Aug 7, 2025