Gabriel Hackebeil

Incorrect behavior with the relax_integrality solver option

2

The way this option is handled in the CPLEX solver plugin is to simply change the problem type to an LP. However, this produces incorrect behavior when the problem has...

Baron does not work with the Pyro solver manager

5

Reported on the pyomo forum by @qtothec: https://groups.google.com/forum/#!topic/pyomo-forum/EmVkqIjJYXg

Python interface to SCIP persistent solver

5

We should explore this for a persistent solver interface to SCIP: https://github.com/SCIP-Interfaces/PySCIPOpt

This would be an interesting project. That is, take the block storage interface in PyORAM and create a wrapper class that provides a filesystem interface (perhaps a backend for PyFilesystem)....

Fix confusing semantics of model.solutions.load_from

1

See #365 and #370

Updates to NoTask to prevent argparse error

4

This issue will track changes related to the thread here: https://groups.google.com/forum/#!topic/pyomo-forum/Att_92wrAoI It looks like the attempt to create an argument parser by the global NoTask object in pyutilib.workflow.task is preventing...