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2010/01/07

Gurobi Optimization Gurobi for AMPL 2.0.2

Gurobi Optimization Gurobi for AMPL 2.0.2

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 mode 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.


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