Make infeasibility checks consistent between the main solver and presolver#326
Merged
rapids-bot[bot] merged 2 commits intoNVIDIA:branch-25.10from Aug 20, 2025
Merged
Conversation
rg20
added
improvement
Contributor
Author
|
/ok to test 24a3653 |
hlinsen
approved these changes
Aug 19, 2025
Contributor
Author
|
/ok to test f76da6f |
Contributor
Author
|
/merge |
jieyibi
pushed a commit
to yining043/cuopt
that referenced
this pull request
Mar 26, 2026
…olver (NVIDIA#326) On the LP benchmark tests, while PDLP and dual simplex stop at a feasible solution, the post solve fails because of infeasibility. This is because of the way the tolerances are handled. - The presolver uses absolute criteria while the LP solver uses relative criteria. Now, we turn off the absolute criteria for LP problems keep it only for MIP and IP problems - The default tolerance in the presolver is 1e-6, now we pass the tolerance used by the solver to presolver ## Issue Authors: - Rajesh Gandham (https://github.com/rg20) Approvers: - Hugo Linsenmaier (https://github.com/hlinsen) URL: NVIDIA#326
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Description
On the LP benchmark tests, while PDLP and dual simplex stop at a feasible solution, the post solve fails because of infeasibility. This is because of the way the tolerances are handled.
Issue
Checklist