HiGHS is high performance serial and parallel software for solving
large-scale sparse linear programming (LP), mixed-integer programming (MIP)
and quadratic programming (QP) models.
HiGHS has primal and dual revised simplex solvers, originally written
by Qi Huangfu and further developed by Julian Hall. It also has an
interior point solver for LP written by Lukas Schork, an active set
solver for QP written by Michael Feldmeier, and a MIP solver written
by Leona Gottwald. Other features have been added by Julian Hall and
Ivet Galabova, who manages the software engineering of HiGHS and
interfaces to C, C#, FORTRAN, Julia and Python. On the NEOS server,
HiGHS is available via MPS and LP formats and on the AMPL and GAMS platforms.
If you use HiGHS in an academic context, please acknowledge this and
cite the following article.
The user must submit a model in AMPL
format. Examples are provided in
section of the AMPL website.
The problem must be specified in a model file. A data file and commands
files may also be provided. If the commands file is specified, it must
contain the AMPL solve command; however, it must not contain
the model or data commands. The model and data
files are renamed internally by NEOS.
The commands file may include option settings for the solver. To specify
solver options, add
option highs_options 'OPTIONS';