Executable
For convenience, the executable is assumed to be bin/highs.
Running the executable
The model given by the MPS file model.mps is solved by the command:
$ bin/highs model.mpsIf the model file is not in the folder from which the command was issued, then a path name can be given.
Command line options
When HiGHS is run from the command line, some fundamental option values may be specified directly. Many more may be specified via a file. Formally, the usage is:
$ bin/highs --help
usage:
./bin/highs [options] [file]
options:
--model_file file File of model to solve.
--options_file file File containing HiGHS options.
--read_solution_file file File of solution to read.
--presolve text Set presolve option to:
"choose" * default
"on"
"off"
--solver text Set solver option to:
"choose" * default
"simplex"
"ipm"
--parallel text Set parallel option to:
"choose" * default
"on"
"off"
--run_crossover text Set run_crossover option to:
"choose"
"on" * default
"off"
--time_limit float Run time limit (seconds - double).
--solution_file text File for writing out model solution.
--read_basis_file text File for initial basis to read.
--write_basis_file text File for final basis to write.
--write_model_file text File for writing out model.
--random_seed int Seed to initialize random number
generation.
--ranging text Compute cost, bound, RHS and basic
solution ranging:
"on"
"off" * default
-v, --version Print version.
-h, --help Print help.The list of options section gives a full list of options, and the format in which they are specified.
Return code values
Consistent with the callable methods in HiGHS, there are three possible return codes
- -1: An error has occurred in HiGHS
- 0: HiGHS has run successfully
- 1: HiGHS has recovered from an unusual event, or has terminated due to reaching a time or iteration limit