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scip



The NEOS Server offers SCIP for the solution of mixed-integer linear and nonlinear programming problems in AMPL format. Not all elements of AMPL have been implmented, yet.

SCIP is a framework for Constraint Integer Programming oriented towards the needs of Mathematical Programming experts who want to have total control of the solution process and access detailed information. SCIP can also be used as pure MIP solver or as framework for branch-cut-and-price.

SCIP can be linked with a number of LP solvers and the NLP solver IPOPT. See this benchmark for the relative performance of SCIP and a shared-memory parallel version FiberSCIP.

Source and documentation are available from the SCIP Homepage

This solver was implemented by Hans Mittelmann and executes at


Using the NEOS Server for SCIP

The user must submit a mixed-integer programming problem in AMPL format.

If non-standard SCIP parameter settings are required, the user may also submit changes from this default parameter file. Only the line(s) in which a parameter is changed from default should be submitted such as limits/solutions = 1 if SCIP should stop when the first feasible solution has been found. When submitting via e-mail or XML-RPC delete empty tokens!

The administrator of SCIP reserves the right to keep and use problem instances submitted through NEOS for testing and debugging purposes.


Enter the complete path to the AMPL model file
AMPL model:


Enter the complete path to the AMPL data file (optional)
AMPL data:


Enter the complete path to the AMPL command file (optional, must contain solve command)
AMPL commands:


Enter the complete path to the SCIP parameter file (optional)
SCIP parameter file:



Comments:


Dry run: generate job XML instead of submitting it to NEOS
e-mail address:

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