Package org.ddolib.examples.smic

Class SMICLnsMain

java.lang.Object

org.ddolib.examples.smic.SMICLnsMain

public class SMICLnsMain
extends Object

Entry point for solving the Single Machine with Inventory Constraint (SMIC) problem using a Large Neighborhood Search (LNS) approach.

This class reads an instance file describing an SMIC problem, constructs an LNS model, and attempts to find an optimal or near-optimal solution within a time limit. The solution is printed along with runtime statistics.

Usage:

 java SMICLnsMain [instanceFilePath]
 

• If no instanceFilePath is provided, a default instance located at data/SMIC/data10_1.txt is used.
• The program runs a time-limited LNS search (1 second) and prints the best solution found along with statistics.

The LNS model is configured with:

• A SMICFastLowerBound for fast lower-bound estimation.
• A SimpleDominanceChecker using SMICDominance to prune dominated states.
• A SMICRanking to rank decisions in the search.
• A fixed width heuristic (FixedWidth) with width = 2 for tree exploration.
• Export of DOT files for visualization of the search tree.

The final solution and statistics are printed to System.out.

Version:

1.0

Author:

Constructor Summary

Constructors

Constructor	Description
SMICLnsMain()

Method Summary

Modifier and Type	Method	Description
static void	main(String[] args)	Main method to run the SMIC LNS solver.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SMICLnsMain

public SMICLnsMain()

Method Details

main

public static void main(String[] args)
                 throws IOException

Main method to run the SMIC LNS solver.

Parameters:

args - optional command-line argument specifying the path to the SMIC instance file. If omitted, the default instance data/SMIC/data10_1.txt is used.

Throws:

IOException - if there is an error reading the instance file.