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[Depends on #3703] Direct and Persistent Interfaces to SCIP #3744

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[Depends on #3703] Direct and Persistent Interfaces to SCIP #3744

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@michaelbynum michaelbynum commented Oct 6, 2025

Fixes #849 .

Summary/Motivation:

The primary purpose of the PR is to port the direct and persistent interfaces for SCIP from #3200 to contrib/solver. I worked off of the branch created by @Opt-Mucca, so all of their commits are preserved. I will close #3200 shortly.

Changes proposed in this PR:

  • Create direct and persistent interfaces to SCIP
  • Expand the API of the ModelChangeDetector in contrib/observer slightly

Legal Acknowledgement

By contributing to this software project, I have read the contribution guide and agree to the following terms and conditions for my contribution:

  1. I agree my contributions are submitted under the BSD license.
  2. I represent I am authorized to make the contributions and grant the license. If my employer has rights to intellectual property that includes these contributions, I represent that I have received permission to make contributions and grant the required license on behalf of that employer.

Opt-Mucca and others added 30 commits March 18, 2024 15:14
@Opt-Mucca
Add first draft of SCIP persistent solving
e552439
@Opt-Mucca
Add SCIPPersistent to docs
6a14f10
@Opt-Mucca
Add SCIp to Github action scripts
c107909
@Opt-Mucca
Remove 5.0.0 specific version. Add conda to workflow
e00ded8
@Opt-Mucca
Standardise string formatting to fstring
a0b6250
@Opt-Mucca
Add parameter link to docstring
d0816eb
@Opt-Mucca
Remove redundant second objective sense check
0e11f11
@Opt-Mucca
Clean up _post_solve with a helper function for status handling
068ec99
@Opt-Mucca
Remove individual skip_test option
63af6d8
@Opt-Mucca @mrmundt
Update pyomo/solvers/plugins/solvers/scip_persistent.py
4075d9a 
Co-authored-by: Miranda Mundt <55767766+mrmundt@users.noreply.github.com>
@Opt-Mucca
Update from the black command
f55fcc5
@Opt-Mucca
Merge remote-tracking branch 'origin/main'
e2b49b2
@Opt-Mucca
Fix typos
91eae7b
@Opt-Mucca
Replace trySol via more safe checkSol
5ee2007
@Opt-Mucca
Adds support for partial solution loading
f6ff092
@Opt-Mucca
Add error handling for setting non-linear objective
e7ac980
@Opt-Mucca
Merge branch 'main' into main
c90bb23
@Opt-Mucca
Remove dual and rc loading for SCIP. Fix bug of ranged rows
2540f65
@Opt-Mucca
Add safe con.body.constant check
9e5d944
@Opt-Mucca
Remove slack loading for SCIP
f90dfad
@Opt-Mucca
Remove dual loading test for SCIP
f703d1f
@Opt-Mucca
Remove slack for suffix in tests
5c02d32
@Opt-Mucca
Remove TODO for nonlinear handling
8ebcf88
@mrmundt
Merge branch 'main' into main
236427f
@Opt-Mucca
Skip LP_trivial_constraints for SCIP persistent
30d8cc6
@Opt-Mucca
Merge branch 'main' into main
8d787ae
@Opt-Mucca
Add transformation for add_cons with non float/int rhs e.g. np.int
30e5e65
@Opt-Mucca
Add warning if type is converted. Tidy up logic
9104a92
@blnicho
Merge branch 'main' into main
a0324af
@blnicho
Merge branch 'main' into main
cbcb96d
@blnicho blnicho removed this from Pyomo 6.10 Feb 4, 2026
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Python interface to SCIP persistent solver

5 participants

@michaelbynum @pyomo-autotest @Opt-Mucca @mrmundt @blnicho