NEOS Interfaces to sdplr

Sample Submissions


The NEOS Server offers SDPLR (version 1.03beta) for the solution of semidefinite programming problems in sparse SDPA format or in an extension to specify low-rank matrices, the SDPLR format (see user guide below).

SDPLR extends and improves on the first order method of Burer&Monteiro. Source code, binaries, and documentation are available from the Sam Burer's Homepage

SDPLR was developed by Samuel Burer, Renato Monteiro, and Changhui Choi (U Iowa).

This solver was implemented by Hans Mittelmann and executes at

Using the NEOS Server for SDPLR

The user must submit a model in either sparse SDPA or SDPLR format to solve a semidefinite programming problem.
Note that when submitting via e-mail or XML-RPC empty tokens need to be deleted

An initial solution to the problem may also be supplied. If non-standard parameter settings are required, the user may also submit this parameter file. While this file was generated by the SDPLR code, a careful editing without format changes is possible.

The code prints the 6 error measures according to the DIMACS 7th Challenge, see the benchmarking paper. This facilitates comparison with other SDP solvers.

Very important: The header of the file should only have the numbers, especially no {..}!

Using the NEOS Server for sdplr/SDPLR

Web Submission Form
SDPA data
Enter the complete path to the sparse SDPA format file (SEE SAMPLE SUBMISSIONS)
SDPLR data
Alternatively, enter the complete path to the SDPLR format file (SEE SAMPLE SUBMISSIONS)
Initial Point
Enter the data file containing the initial solution (optional)
Parameter File
Enter the parameter file (optional).
Additional Settings

E-Mail address:
Please do not click the 'Submit to NEOS' button more than once.