Great seeing this again. I remember in its day Cray was like a mythical beast we only heard of since Gov was the only one with enough money to buy one.
The C configuration with hard wrapped wires were awesome. Hard wrapping was the fastest path for electrons from point A to B.
Back in the bread boarding days, hard wrapping was using a tool to physically wrap a hair thin insulated wire from one pin on an IC to another pin on an IC.
Not using the PCB foil electrical path but rather a direct short path as possible wire connection between two points.
The C configuration with hard wrapped wires were awesome. Hard wrapping was the fastest path for electrons from point A to B.