Julian Hall comments

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                                            Julian Hall

Make better use of incumbent MIP solution

See #1401

Make better use of incumbent MIP solution

Addressed by #1843 and #1844

Add writePresolvedModel

Closed by #1741

Add writePresolvedModel

I think it's too esoteric to have as a command-line option - the option would have to be set in an options file - but I see that if you're...

Add writePresolvedModel

Closed by #1863

import errors and segmentation fault with highspy-1.7.1.dev1 and examples/call_highs_from_python.py

I've tested > python call_highs_from_python.py this (on Linux) and it runs fine

Add setBasis to highspy

Fixed by #1740

Potential issues with presolve: incorrect 'optimal' solution and incorrect infeasibiliy detection

Thanks. There are bugs in the MIP presolve that we are steadily fixing. This can be added to the instances @fwesselm

Potential issues with presolve: incorrect 'optimal' solution and incorrect infeasibiliy detection

Yes, solving in `debug` takes 1.02s for me, and 0.16s in `release`

Potential issues with presolve: incorrect 'optimal' solution and incorrect infeasibiliy detection

> I just tried the `latest` branch, and this seems to be fixed: Hopefully, although fixes to presolve may cause the sequence of reductions to change and avoid the error