Infrastructure

GPU racks, power, cooling, physical deployment, the hardware that makes on-vessel AI possible.

Infrastructure12 min read

Vessel GPU Racks: Power, Cooling, Security

The unglamorous realities of deploying GPU compute on a vessel. Power budgets, thermal management, vibration isolation, and physical access control.

James Calder·May 17, 2026

Infrastructure18 min read

On-Vessel GPU Selection Guide

Blackwell B200, H200, H100, L40S, and A100 compared for vessel deployments. When each is the right call and the power realities.

James Calder·April 11, 2026

Infrastructure15 min read

Unified Memory for Vessel AI

AMD Strix Halo and NVIDIA DGX Spark bring 128 GB of unified memory to a shelf-sized box for under $4,000. When to buy one.

James Calder·April 10, 2026

Infrastructure14 min read

1M Context: The GPU Math (2/3)

VRAM and KV cache math for models from 7B to 405B at 1M tokens. Per-user scaling for crew and guests. The numbers are ugly.

James Calder·April 7, 2026