Published September 14, 2024
| Version v2.3.1
Software
Open
scipopt/papilo: v2.3.1
Authors/Creators
- 1. Zuse Institute Berlin
- 2. Consultant for the University of Edinburgh, School of Mathematics
- 3. GAMS
- 4. Johns Hopkins University
- 5. HTW and Zuse Institute Berlin
- 6. Inria
- 7. University of Helsinki
- 8. Forcepoint
- 9. Zero
Description
Fixed bugs
- DominatedCols: compress set of dominations topologically to avert memory exhaustions
- Input and Output: handle floating point numbers precisely in parsers and writers
- OPB-Parser: handle additional whitespaces
- ParallelColDetection: only merge integral parallel columns for integral column scale
- ParallelColDetection: reduce complexity of hole detection for integral parallel columns
- Probing: eliminate computational overhead in row propagation
- Propagation: handle constraint propagation more carefully by applying feasibility instead of epsilon tolerance
- SimpleSubstitution: correct feasibility tolerances on euclidean coprime substitutions
- SingletonCols: order effective side changes to avoid invalid infeasibility
- SingletonStuffing: normalize and order sides to avoid invalid infeasibility
- Statistics: avoid counting calls of symmetry extensions additionally
- Trivial: mark activity redundancy in trivial row presolving
Build system
- fixed build against HiGHS 1.7.2
- TBB is now no longer download automatically; to enable the download, set option TBB_DOWNLOAD to on
- added check whether linking of libatomic is necessary and possible to make std::atomic available
Known issues
- SingletonCols: normalize if substituting constraint in the objective (when dual-postsolve is active)
Files
scipopt/papilo-v2.3.1.zip
Files
(2.1 MB)
| Name | Size | Download all |
|---|---|---|
|
md5:dba08ebc33d502514317f23d609538ca
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2.1 MB | Preview Download |
Additional details
Related works
- Is supplement to
- Software: https://github.com/scipopt/papilo/tree/v2.3.1 (URL)