The Gurobi Optimizer is a state-of-the-art simplex
based linear programming (LP) and mixed-integer
programming (MIP) solver, built from the ground up
to exploit modern multi-core processors. Parallelism
is included with every Gurobi license. The Gurobi
Parallel MIP Optimizer is deterministic: two
separate runs on the same model will produce
identical solution paths.

Version 2.0 of the Gurobi Optimizer is now
available! This new version includes a number of
enhancements:

* Significant improvements in MIP performance: For
difficult models, Gurobi 2.0 is roughly four times
as fast as Gurobi 1.1.
* Significant improvements in simplex performance:
The new dual simplex optimizer is roughly twice as
fast as Gurobi 1.1.
* Improvements in parallel MIP performance: Gurobi
2.0 extracts more benefit from each additional
core in your multi-core system.
* MIP IIS (Irreducible Infeasible Subsystem): Gurobi
2.0 can identify the causes of infeasibility in
MIP as well as LP models.
* MIP node files: Allow you to store MIP nodes on
disk and thus solve much larger MIP models.
* Cloud computing: Gurobi is now available on-demand
via the Amazon Elastic Computing Cloud.
* New examples: An extensive new set of examples
illustrates key features and uses for Gurobi in
all supported languages.
* Support for Mac OS X.


http://www.gurobi.com
http://www.ampl.com

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