ERGO-Code/HiGHS issues and pull requests

#1599 - Pass scaling info by reference

Pull Request - State: closed - Opened by fwesselm 10 months ago

#1598 - Enable forced simplex refactorization

Issue - State: open - Opened by jajhall 10 months ago
Labels: enhancement

#1597 - Minor postsolve changes for debugging

Pull Request - State: closed - Opened by fwesselm 10 months ago

#1596 - Cleanup of continuous integration

Pull Request - State: closed - Opened by Coloquinte 10 months ago - 2 comments

#1595 - Analytic centre

Pull Request - State: closed - Opened by jajhall 10 months ago

#1594 - Uninitialized dual in postsolve

Pull Request - State: open - Opened by fwesselm 10 months ago

#1593 - Python Interface should release the GIL when run gets called

Issue - State: closed - Opened by michaelbynum 10 months ago - 9 comments
Labels: code-quality, Python

#1592 - Extraction of MIP cuts by callback

Issue - State: closed - Opened by jajhall 10 months ago - 1 comment
Labels: enhancement, MIP

#1591 - FIx handling of semidefinite instances in QP solver

Pull Request - State: closed - Opened by feldmeier 10 months ago - 1 comment

#1590 - Return solution object properties as numpy arrays.

Issue - State: open - Opened by timellemeet 10 months ago - 3 comments
Labels: code-quality, Python

#1589 - Fix assertion failure in getVariableKktFailures

Pull Request - State: open - Opened by fwesselm 10 months ago

#1588 - Presolve fails on model with no variable

Issue - State: closed - Opened by rhshadrach-8451 10 months ago - 8 comments
Labels: Python

#1587 - Qp fix 1583

Pull Request - State: closed - Opened by feldmeier 10 months ago

#1586 - Applied fix-1584 mods to update master

Pull Request - State: open - Opened by jajhall 10 months ago - 3 comments

#1585 - Now handling integrality_ correctly when adding columns and changing integrality for an LP

Pull Request - State: closed - Opened by jajhall 10 months ago

#1584 - Added variables without calling Highs_changeColIntegrality are sometimes marked as integer or semi-cont

Issue - State: closed - Opened by peno64 10 months ago - 2 comments
Labels: bug

#1583 - QP solver infinite loop

Issue - State: open - Opened by jajhall 10 months ago - 8 comments
Labels: bug, QP

#1582 - Fix #1581

Pull Request - State: closed - Opened by fwesselm 10 months ago - 1 comment

#1581 - Out-of-bound access in HighsLpUtils.cpp

Issue - State: closed - Opened by Coloquinte 10 months ago - 1 comment
Labels: code-quality

#1580 - Python-3.12 wheels ?

Issue - State: closed - Opened by stonebig 10 months ago - 3 comments
Labels: enhancement, Python

#1579 - Fix minor sanitizer issues and add optional Meson workflow to run the sanitizers

Pull Request - State: open - Opened by Coloquinte 10 months ago - 3 comments

#1578 - Model status goes from infeasible to optimal when shutting down presolve

Issue - State: open - Opened by lpierezan 10 months ago - 10 comments
Labels: code-quality, MIP, MIP Presolve

#1577 - Nan mps

Pull Request - State: closed - Opened by jajhall 10 months ago

#1576 - Pass tests with sanitizer

Issue - State: open - Opened by Coloquinte 10 months ago - 1 comment
Labels: code-quality

#1575 - Removed - in line 488 of cxxopts.hpp to fix #1571

Pull Request - State: closed - Opened by jajhall 10 months ago

#1574 - Fix 1560

Pull Request - State: closed - Opened by jajhall 10 months ago - 1 comment

#1573 - Minor fixes for typos and warning

Pull Request - State: closed - Opened by Coloquinte 10 months ago - 2 comments

#1572 - Allow postsolve to run when presolve has not performed any reductions

Pull Request - State: closed - Opened by fwesselm 10 months ago - 2 comments

#1571 - compiler warning

Issue - State: closed - Opened by sdirkse67 10 months ago - 5 comments

#1570 - Solution objective worse than Primal bound

Issue - State: open - Opened by jajhall 10 months ago - 1 comment
Labels: MIP, bug

#1567 - Fix potential access violation in postsolve

Pull Request - State: closed - Opened by fwesselm 10 months ago - 2 comments

#1566 - Fix 1565

Pull Request - State: closed - Opened by jajhall 10 months ago

#1565 - Suggestion for Addition of Routine to Query Size of HighsInt in HiGHS

Issue - State: closed - Opened by WalterLu3 10 months ago - 2 comments

#1564 - Problems reduced to empty by presolve

Pull Request - State: closed - Opened by fwesselm 10 months ago - 1 comment

#1563 - Conditions based on uninitialized value in basiclu_obj_initialize() routine

Issue - State: open - Opened by WalterLu3 10 months ago - 4 comments
Labels: code-quality

#1562 - Clarify meaning of `kHighsStatusWarning` in `Highs_run`

Issue - State: open - Opened by amigalemming 11 months ago - 5 comments
Labels: enhancement

#1561 - Warm start provokes solver failure

Issue - State: open - Opened by amigalemming 11 months ago - 2 comments
Labels: code-quality

#1560 - Add Highs_presolve and Highs_getPresolvedLp to C API - and Highs_getLp and Highs_clearIntegrality

Issue - State: closed - Opened by jajhall 11 months ago - 4 comments
Labels: enhancement

#1559 - Fix 1557

Pull Request - State: closed - Opened by jajhall 11 months ago - 1 comment

#1558 - Ipx termination logging

Pull Request - State: closed - Opened by jajhall 11 months ago

#1557 - Duals not flipped when maximizing and not running crossover

Issue - State: closed - Opened by jajhall 11 months ago - 1 comment

#1556 - Fix 1535

Pull Request - State: closed - Opened by jajhall 11 months ago

#1555 - Fix 1553

Pull Request - State: closed - Opened by jajhall 11 months ago

#1554 - add definition to adjust header

Pull Request - State: closed - Opened by lkapelevich 11 months ago

#1553 - Fix presolve debugging problem

Issue - State: closed - Opened by jajhall 11 months ago - 1 comment

#1552 - Fix endless restart loop

Pull Request - State: closed - Opened by fwesselm 11 months ago

#1549 - Fortran interface doesn't build on Windows

Issue - State: closed - Opened by ogmundur 11 months ago - 2 comments
Labels: Build

#1547 - Inexplicable performance variation

Issue - State: open - Opened by NPC 11 months ago - 6 comments

#1546 - Consider #1542

Issue - State: closed - Opened by jajhall 11 months ago
Labels: enhancement

#1545 - Fix 1535

Pull Request - State: closed - Opened by jajhall 11 months ago

#1544 - Fix #1530

Pull Request - State: closed - Opened by fwesselm 12 months ago

#1543 - "WARNING: Solution with objective XXX has untransformed violations: bound = ..." seems to accurately predict integer-infeasibility in the MIP.

Issue - State: open - Opened by jeffreydeankelly2 12 months ago - 5 comments
Labels: code-quality, MIP

#1542 - Updates to readme | Python installation and restructured headers/nesting

Pull Request - State: closed - Opened by thesethtruth 12 months ago - 4 comments

#1540 - Branching Priorities for Discrete Variables in MIP?

Issue - State: closed - Opened by jeffreydeankelly2 12 months ago

#1539 - MIP callbacks now give values of MIP (rel) gap as a fraction, rather than as a percentage

Pull Request - State: closed - Opened by jajhall 12 months ago

#1538 - PuLP Interface

Issue - State: closed - Opened by zepedropaulos 12 months ago - 1 comment

#1537 - Add trivial heuristics

Pull Request - State: closed - Opened by jajhall 12 months ago

#1536 - Add 1 opt

Pull Request - State: closed - Opened by jajhall 12 months ago

#1535 - Reinstate printing of githash, so long as it is non-empty

Issue - State: closed - Opened by jajhall 12 months ago - 3 comments

#1534 - Internal re-run after cycling?

Issue - State: open - Opened by jajhall 12 months ago
Labels: enhancement

#1533 - Fix 1531

Pull Request - State: closed - Opened by jajhall 12 months ago

#1531 - null pointer access on empty problem

Issue - State: closed - Opened by amigalemming 12 months ago - 3 comments

#1530 - Infeasibility depends on sense and presolve

Issue - State: closed - Opened by amigalemming 12 months ago - 5 comments
Labels: bug

#1529 - [docs] clarify documentation for precompiled binaries

Pull Request - State: closed - Opened by odow 12 months ago

#1528 - ModelStatus Unknown but successful after second run.

Issue - State: closed - Opened by timellemeet 12 months ago - 13 comments

#1527 - Bug: Optimal solution with binary variable constraints is infeasible

Issue - State: closed - Opened by marwingen 12 months ago - 1 comment

#1526 - Considering adding the Feasibility Jump heuristic

Issue - State: closed - Opened by jeffreydeankelly2 12 months ago - 2 comments

#1525 - Postsol investigation2

Pull Request - State: closed - Opened by jajhall 12 months ago

#1524 - Deleted highsSignalHandler

Pull Request - State: closed - Opened by jajhall 12 months ago
Labels: code-quality

#1523 - Prevent the Highs instance from being called by a callback that it calls.

Issue - State: open - Opened by jeffreydeankelly2 12 months ago - 5 comments
Labels: enhancement, code-quality, bug

#1522 - Now modifying tiny infeasible bounds as required for #1512

Pull Request - State: closed - Opened by jajhall 12 months ago

#1521 - Allow tiny bound inconsistencies

Issue - State: closed - Opened by jajhall 12 months ago - 1 comment
Labels: enhancement

#1520 - Added bound printing to userMipSolutionCallback in TestCallBacks.cpp

Pull Request - State: closed - Opened by jajhall 12 months ago

#1519 - Moved three static double and one static HighsInt from HEkkPrimal.cpp to data members of HEkkPrimal

Pull Request - State: closed - Opened by jajhall almost 1 year ago

#1518 - Remove static variables from HEkkPrimal

Issue - State: closed - Opened by jajhall almost 1 year ago - 1 comment
Labels: enhancement

#1517 - Incorrect declaration of infeasiblilty

Issue - State: open - Opened by jajhall about 1 year ago
Labels: bug, MIP Presolve

#1516 - Fix 1514

Pull Request - State: closed - Opened by jajhall about 1 year ago - 1 comment

#1515 - can highs solve mixed QP problem, if can, how about performance compared to gurobi?

Issue - State: closed - Opened by pengfzhou about 1 year ago - 1 comment

#1514 - Highs_lpCall, Highs_mipCall and Highs_qpCall should not return on warning from highs.passModel

Issue - State: closed - Opened by jajhall about 1 year ago
Labels: enhancement

#1513 - Fix #1164

Pull Request - State: closed - Opened by fwesselm about 1 year ago

#1512 - Ill-conditioning analysis

Pull Request - State: closed - Opened by jajhall about 1 year ago

#1511 - Try to match column names when reading solution file

Issue - State: open - Opened by jajhall about 1 year ago
Labels: enhancement

#1510 - Optimal objective function value different when "--presolve==off"

Issue - State: closed - Opened by jajhall about 1 year ago - 2 comments
Labels: MIP, bug, MIP Presolve

#1509 - Fix crash in HPresolve::shrinkProblem

Pull Request - State: closed - Opened by fwesselm about 1 year ago

#1508 - Reduce amount of similar code in HighsPathSeparator.cpp

Pull Request - State: closed - Opened by fwesselm about 1 year ago - 3 comments

#1507 - Add MIP solution callback into method that transforms a new integer feasible solution

Pull Request - State: closed - Opened by jajhall about 1 year ago

#1506 - Made LK's corrections

Pull Request - State: closed - Opened by jajhall about 1 year ago - 1 comment

#1505 - fix minor typos in docs

Pull Request - State: closed - Opened by lkapelevich about 1 year ago - 1 comment

#1504 - Fix 1501

Pull Request - State: closed - Opened by jajhall about 1 year ago

#1502 - Building and using highspy 1.6.0 on Linux?

Issue - State: closed - Opened by skinkie about 1 year ago - 23 comments

#1501 - Time limit not enforced during presolve

Issue - State: open - Opened by SolverMax about 1 year ago - 11 comments
Labels: enhancement

#1500 - Error while instanciate a HighsLp object

Issue - State: closed - Opened by leduqueadrien about 1 year ago - 8 comments

#1499 - Fix #1334

Pull Request - State: closed - Opened by fwesselm about 1 year ago - 1 comment

#1498 - Fix 1487

Pull Request - State: closed - Opened by jajhall about 1 year ago - 1 comment

#1497 - Issue 1496

Pull Request - State: closed - Opened by guifcoelho about 1 year ago

#1496 - In the B&P python example, comparing node value against the current best objective should be done only when the RMP is feasible.

Issue - State: closed - Opened by guifcoelho about 1 year ago - 3 comments

GitHub / ERGO-Code/HiGHS issues and pull requests