If you are having problems using the NEOS Server, please read through the
help information below before contacting us for technical support.
Users often can resolve their own problems quickly with the information in
the NEOS Server FAQ and/or
the User's Guide to the
NEOS Server. If you need additional technical assistance, please
contact us at support@neos-server.org
and include the solver name and the job submission number.
Creating a NEOS User account
Signing Up
You can create your free NEOS User account on
the Sign Up page. The
benefits of creating an account include higher scheduling priority
for your jobs and notifications if your jobs are terminated due to
service issues. Additional features will be offered in the future.
Not Signing Up
You are not required to create a NEOS
User account to submit jobs to the NEOS Server.
Using the NEOS Server
Getting started
If you are a new user to the NEOS Server, you should read
the User's Guide to the
NEOS Server. The User's Guide includes
an Overview of the Job Submission Process that explains the steps involved in
submitting a job to NEOS and describes the different submission
interfaces. For new users,
the web
interface is the easiest way to submit jobs to the NEOS
Server.
Submitting a job
If you need help submitting a job to the NEOS Server, you can read
about the different submission interfaces in
the User's Guide to the
NEOS Server. You can read about time (8 hours) and memory (3 GB)
limits, compressed data options, and more job submission topics in
the NEOS
Server FAQ.
Retrieving results
If you are having trouble receiving results, you should read the
NEOS Server
FAQ section on results before contacting support.
Jobs that exceed the 8 hour time limit or the 3 GB memory
limit will not return results.
Reporting errors
If you have a problem with a particular solver or with a job
submission, contact us at
support@neos-server.org. Please
include the solver name and the job submission number in order for
us to investigate the issue.
For solvers hosted at ASU, please
contact Hans Mittelmann for
assistance. These solvers include
bnbs, ddsip, sd for stochastic linear programming;
condor for nondifferentiable optimization;
bpmpd, SoPlex80bit for linear programming;
icos for global optimization;
feaspump, proxy, qsopt_ex for mixed-integer linear programming; and
scip for global optimization and mixed-integer linear programming for all input types except GAMS.
Contributing to the NEOS Server
Adding a solver
If you are interested in submitting your solver to NEOS, please
contact us at
support@neos-server.org
with a brief description of the solver. Please include a copy of any
available documentation or links to online documentation.
Providing comments or suggestions We welcome your
comments and suggestions on the NEOS Guide and the NEOS
Solver. Contact us
at support@neos-server.org
with your comments and suggestions.