NESO

NESO is a local-search solver for nonlinear optimization. This release and documentation are temporarily limited to PUBO. Broader problem support will be documented when added.

Command line

NESO <model.gms> [max_iters] [seed] [solution_file]

Argument	Description
model.gms	Path to a compatible .gms file (required).
max_iters	Maximum number of local-search iterations. Default: 100000.
seed	RNG seed. Use 0 for a nondeterministic run (entropy-based); any nonzero value makes the run reproducible for that seed.
solution_file	Optional. If provided, writes the best solution found to this path after the run.

Standard output

Prints one block per run, including:

• file: — input path
• n_vars: / n_terms: — parsed problem size
• start_obj(all-zero): — objective at the all-zero start
• best_obj: — best objective found

Examples

./NESO /path/to/instance.gms

./NESO /path/to/instance.gms 10000 42

./NESO /path/to/instance.gms 10000 12345 /path/to/output.sol

./NESO /path/to/instance.gms 10000 0 /path/to/output.sol

Make the binary executable if needed: chmod +x NESO.