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Using the NMAKE Utility

• Edit the file SYMPHONY-5.0 $\backslash$WIN32 $\backslash$sym.mak makefile to reflect your environment. This involves specifying the LP solver to be used and various paths. Only minor edits should be required. An explanation of what has to be set is contained in the comments in the makefile.

• To use many of the new capabilities of SYMPHONY, you must have installed the COIN optimization libraries . By default SYMPHONY is set to use COIN LP solver, CLP, COIN Open Solver Interface, OSI, and COIN Cut Generation Library, CGL. To keep this configuration, you should install OSI, CGL, CLP and additionally, the Coin utilities (under COIN $\backslash$Coin).The path to the COIN libraries must be specified in SYMPHONY-5.0 $\backslash$WIN32 $\backslash$sym.mak.

• If you wish to read GMPL/AMPL files, you will have to install the Gnu Linear Programming Kit (GLPK), which contains a parser for GMPL/AMPL files. The path to the GLPK libraries must be specified in the makefile.

• Once configuration is done, type nmake /f sym.mak at the command prompt in the
  SYMPHONY-5.0 $\backslash$WIN32 subdirectory. This will first make the SYMPHONY library (sequential version): SYMPHONY-5.0 $\backslash$WIN32 $\backslash$Debug $\backslash$symphonyLib.lib. This library together with the header files in the subdirectory (SYMPHONY-5.0 $\backslash$include) can then be be used to call SYMPHONY from any C code. The API for this is described in section 7.3. After compiling the SYMPHONY library, the default main function will be compiled and linked with the the callable library to form an executable called symphony.exe to be used for solving generic MILP problems in MPS or GMPL format. The executable will be created in the SYMPHONY-5.0 $\backslash$WIN32 $\backslash$Debug subdirectory.

• To test the executable, type symphony.exe -F .. $\backslash$.. $\backslash$sample.mps at a command prompt in the SYMPHONY-5.0 $\backslash$WIN32 $\backslash$Debug subdirectory.