22c6962aa2
git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@1002 331e1502-861f-0410-8da2-ba01fb791d7f
88 lines
3 KiB
TeX
88 lines
3 KiB
TeX
\documentclass[a4paper]{article}
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\usepackage[english]{babel}
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\usepackage{epsf}
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\usepackage{amssymb}
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\usepackage{here}
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\usepackage{comment}
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\usepackage{graphicx}
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\topmargin -2.5cm
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\textheight 25,5cm
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\textwidth 16cm
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\oddsidemargin 0cm
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\begin{document}
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\textbf{ParadisEO Practices} {\copyright Franck Seynhaeve,
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Jean-Charles Boisson, Thomas Legrand} \Large{\textbf{\\\\
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Lesson 4: Implement a tabu search using ParadisEO}}
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\normalsize
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\vspace{-0,3cm}
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\section{Example}
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The archive {\tt paradiseo\_practices\_0208.tgz} installed
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on your computer contains a tabu search implemented using ParadisEO-MO~
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(see {\tt tabu\_search} in the {\bf build/lesson4} directory).
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\medskip
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To run it, please go in {\bf build/lesso4} and start the program {\tt tabu\_search} by giving
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one of the TSP instances located in {\bf tsp/benchs}.
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\medskip
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When entering {\tt ./tabu\_search ../../tsp/benchs/berlin52.tsp}, you should end up with the
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following outputs:
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\smallskip
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\noindent
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\texttt{>> Loading [../tsp/benchs/berlin52.tsp]}\\
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\texttt{[From] -29414 52 1 20 40 48 9 27 13 22 5 28 24 29 21 26 44 38 33 37 45 31 42 18 12 3 14}\\
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\texttt{36 30 6 51 32 17 11 0 34 4 10 4350 16 2 23 35 19 46 49 39 25 15 41 8 7 47}\\
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\texttt{[To] -8724 52 1 6 41 29 22 19 49 15 28 46 13 51 12 25 26 27 11 10 50 32 42 9 8 7 40 18}\\
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\texttt{44 2 16 20 30 17 21 0 31 48 35 3438 39 37 36 33 43 45 24 3 5 4 14 23 47}\\
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The printed-out results show for the initial best solution and the final one~:
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\\ \hspace*{1cm}-the length of the route
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\\ \hspace*{1cm}-the number of cities
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\\ \hspace*{1cm}-the route itself (notice that the city index starts from 0).
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\section{Study the tabu search dedicated components}
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Study the {\tt tabu\_search.cpp} file located in the {\bf lesson4} directory
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using~:
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\begin{itemize}
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\item[$\bullet$] the ParadisEO-MO API documentation available at~:
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\hspace{1cm}http$\,:$//paradiseo.gforge.inria.fr/addon/paradiseo-mo/doc/index.html
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\item[$\bullet$] the source files located in the {\bf tsp/src/} directory
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\end{itemize}
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\section{Customize the tabu search}
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Make a backup (copy) of the cpp file {\tt tabu\_search.cpp}. You can now modify the
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original {\tt tabu\_search.cpp} and use the existing makefiles to compile it.
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Edit and modify the {\tt tabu\_search.cpp} file~:
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\begin{itemize}
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\item[$\bullet$] Try to tune a few parameters of the tabu search.
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\item[$\bullet$] Change the initialization of the solution by
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modifying the file {\tt route\_init.cpp}.
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\end{itemize}
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\smallskip
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To compile {\tt tabu\_search.cpp},you should use the
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command {\tt make} from {\bf build/lesson4}.
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\medskip
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Finally, test your modifications on several TSP instances ({\tt berlin52},
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{\tt eil101} ...) and compare the results you get.
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\end{document}
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