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Parametric Integer Programming Library
License: GNU Lesser General Public License v2.1
This project forked from periscop/piplib
Parametric Integer Programming Library
License: GNU Lesser General Public License v2.1
# # /**-------------------------------------------------------------------** # ** PIP/PipLib ** # **-------------------------------------------------------------------** # ** Parametric Integer Programming ** # **-------------------------------------------------------------------** # ** First version of this file: february 21th 2002 ** # **-------------------------------------------------------------------**/ # For complete informations about this software, how to build and use it, please see the postscript file in the ./doc subdirectory (a pdf version is available in the web site). # **-------------------------------------------------------------------** # ** I. Description ** # **-------------------------------------------------------------------**/ PIP/PipLib is the well known Paul Feautrier's parametric integer programming solver. PIP is a software which finds the lexicographic minimum of the set of integer points which lie inside a convex polyhedron. This polyhedron can depend linearly on one or more integral parameters. If user ask for a non integral solution, PIP can give the exact solution as an integral quotient. The heart of PIP is the parametrized Gomory's cuts algorithm followed by parametrized dual simplex method. The PIP Library (PipLib for short) was implemented to allow the user to call PIP directly from his programs, without file accesses or system calls. The user only needs to link his programs with C libraries. # **-------------------------------------------------------------------** # ** II. Building PIP/PipLib ** # **-------------------------------------------------------------------**/ The configure shell script attempts to guess correct values for various system-dependent variables used during compilation. It uses those values to create a Makefile. The file configure.in is used to create configure by a program called autoconf. You only need configure.in if you want to change it or regenerate configure using a newer version of autoconf. The simplest way to compile this package is: cd to the directory containing the package's source code and type ./configure to configure the package for your system (while running, configure prints some messages telling which features it is checking for), to compile the package, type make to install the program and/or the library, type make install you can remove the program binaries and object files from the source code directory by typing make clean To also remove the files that configure created (so you can compile the package for a different kind of computer) type make distclean # **-------------------------------------------------------------------** # ** III Options ** # **-------------------------------------------------------------------**/ By default, make will install the package's files in /usr/local/bin, /usr/local/lib, etc. You can specify an installation prefix other than /usr/local by giving onfigure} the option --prefix=PATH. By default, both PIP and the PipLib are compiled and installed. By giving configure the option --without-pip you disable the compilation and installation of PIP. By giving configure the option --without-lib you disable the compilation and installation of the PipLib. By default, both int (32 bits) and long long int (64 bits) versions are built. By giving configure the option --enable-int you ask for int version only and by giving configure the option --enable-llint you ask for long long int version only. # **-------------------------------------------------------------------** # ** IV Running PIP ** # **-------------------------------------------------------------------**/ To run PIP, simply type 'pip32' or 'pip64', optionally followed by the name of an input file. For more informations, please check the ./doc subdirectory.
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