Xpress-MP overview
Xpress-MP is a suite of mathematical modeling and optimization tools used to solve linear, integer, quadratic, non-linear, and stochastic programming problems. Xpress-MP customers include:
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OEMs/ISVs who embed optimization functionality within their own products |
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Consultants who offer optimization solutions to their clients |
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Business analysts and other end-users within large organizations who solve their own optimization problems directly |
The Xpress-MP suite is available on all common
computer platforms
and in different capacities
for solving problems of various sizes. The products support
a range of user/software interfaces including callable library APIs
in C, C++, VB, Java, .NET and standalone command line interfaces. See
here for more details.
Here we describe the different products
of the Xpress-MP suite that enable it to be used in such a diverse
range of applications. Xpress-MP features. To find out more about
the specific features of a particular product, click on the associated
link.
Solver engines
The
Xpress-Optimizer features
optimization algorithms which enable you to solve linear
problems (LP), mixed integer problems (MIP), quadratic
problems (QP), mixed integer quadratic problems (MIQP), quadratically constrained problems (QCQP) and convex general non-linear problems (NLP).
Xpress-SLP is
a solver for non-linear
programming problems (NLP) and mixed integer non-linear non-convex
problems (MINLP). It uses successive linear approximation
which has been developed from techniques used in the process industries
and it is capable of solving large problems with many thousands
of variables.
Xpress-SP is a
Stochastic Programming tool for solving optimization problems involving
uncertainty. Xpress-SP can be used to model and solve problems occuring
in Supply Chain Management, Energy, Finance, Transportation, etc.,
by building uncertainty into the optimization problem in order to
hedge against future variability
Xpress-Kalis is
Constraint Programming software based upon the Kalis solver by Artelys. It specializes on discrete combinatorial problems as they frequently
occur, for instance, in scheduling and planning problems.
Model building and development tools
Xpress-Mosel
allows you to formulate your problem, solve it using one or several of the Xpress solver engines,
and analyze the solution, using a fully-functional compiled programming
language specifically designed for the purpose.
The Xpress-Mosel environment comprises the Mosel language with its debugger; modules and I/O drivers for accessing other software components and external data sources directly in this language; libraries for embedding models into applications; and an open interface for user-written extensions to the Mosel language.
Xpress-BCL
is an object-oriented library for building, solving, and analyzing problems directly within an application.
Xpress-IVE
is a complete visual development environment for Xpress-Mosel under
Windows. It incorporates a Mosel program editor, compiler and execution
environment.
Xpress-Application Developer (XAD) extends Xpress-Mosel
with an API for graphical user interface development,
turning Mosel into a modeling and programming language for
complete optimization application development from the
mathematical representation of the problem to developing
the user interface.
Additional tools
For Xpress-Mosel: the ODBC, Oracle and Excel interfaces enable the user to work with databases and spreadsheets as external data sources.
The Xpress-Tuner tool allows the user to find values for the algorithm controls which improve on the solver default values for their models. This can lead to significant performance gains.
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