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jkMST

jkMST is a Julia Program to optimize k-MST problems.

Dependencies

  • Julia v1.4+
  • CPLEX 12.10 or 21.1

Installation

To install the script locally you can run:

make

The script attempts to find the CPLEX installation in a set of common locations, if it does not find the installation set the environment variable CPLEX_STUDIO_BINARIES:

export CPLEX_STUDIO_BINARIES=/path/to/cplex

Usage

After installing the bash script can be run.

For example run

./jkMST --help

for details.

The most common command to run will be:

./jkMST --directory data # finds all .dat files in all subdirectories
    --mode mtz scf mcf # the modes used in this run
    --size 0.2 0.5 # relative sizes of the k-MST tree
    --timeout 600 # 10 minute runtime in seconds
    --generate-timeout 60 # 1 minute time for building the model

Notice that the -m or --mode, -k or --size, -s or --solver flags are in a crossproduct, i.e. all possible configurations are run.

The flag --verbose outputs quite a bit of additional information which might be interesting.

Contributing

This is university project and therefore it is highly academic/non-practical in nature.

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

License

MIT