Use this generator to create a reproducible identifier or a controlled optimization instance for examples, benchmarks, solver tests, and algorithm comparisons.

Jobs

Required integer input.

Machines

Required integer input.

Minimum processing time

Required integer input.

Maximum processing time

Required integer input.

Seed

Required string input.

Generate a reproducible processing-time matrix for an open-shop scheduling problem. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Processing times

The resulting processing times returned as a list.

• Generated instances reflect the chosen distribution, size, density, and seed; they may not resemble operational data or cover adversarial cases. A generated UUID's properties depend on its version and random source.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Record the seed and parameters, test multiple distributions and edge cases, and include representative real-world instances when evaluating solver quality.

• 3D Bin Packing Instance Generator

  Generate reproducible rectangular boxes bounded by a three-dimensional bin.

• 3SAT Instance Generator

  Generate reproducible Boolean 3SAT clauses with distinct variables per clause.

• Bin Packing Instance Generator

  Generate reproducible one-dimensional bin-packing item sizes.