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Ready for release #1986

Merged
merged 277 commits into from
Oct 17, 2024
Merged

Ready for release #1986

merged 277 commits into from
Oct 17, 2024
This pull request is big! We’re only showing the most recent 250 commits.

Commits on Jun 13, 2024

  1. Merge branch 'latest' into fix-1789

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Commits on Jun 14, 2024

  1. Merge branch 'latest' into fix-1789

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  2. printf and other logging conditionally silenced by kIisDevReport

    @jajhall
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  3. Now using reciprocal filter

    @jajhall
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Commits on Jun 18, 2024

  1. Merge branch 'latest' into fix-1789

    @jajhall
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  2. Now extracting primal phase 1 duals for sensitivity test

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Commits on Jun 19, 2024

  1. First steps to compute primal phase 1 dual for sensitivity filter

    @jajhall
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Commits on Jun 30, 2024

  1. Compute bound differences using HighsCDouble

    @fwesselm
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  2. Use tolerances when rounding in postsolve

    @fwesselm
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Commits on Jul 1, 2024

  1. Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into fixN… 

    …eos4
    @fwesselm
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  2. Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into roun… 

    …dWithTolsPostsolve
    @fwesselm
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  3. Minor change

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  4. Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into fixN… 

    …eos4
    @fwesselm
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  5. Merge pull request #1829 from fwesselm/fixNeos4 

    Assertion failure on neos4
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  6. Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into roun… 

    …dWithTolsPostsolve
    @fwesselm
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Commits on Jul 9, 2024

  1. Merge pull request #1832 from fwesselm/roundWithTolsPostsolve 

    Use tolerances when rounding
    @jajhall
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  2. Added int64_t mip_total_lp_iterations to HighsCallbackDataOut and mod… 

    …ified accessor function
    @jajhall
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  3. Reset FEATURES.md and added comment on fix-1814

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  4. Merge pull request #1839 from ERGO-Code/fix-1814 

    Added int64_t mip_total_lp_iterations to HighsCallbackDataOut and modified accessor function
    @jajhall
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  5. Introduced highsFprintfString to replace fprintf(file so that solutio… 

    …n etc to console can be handled through callbacks
    @jajhall
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Commits on Jul 10, 2024

  1. Replaced fprintf(file in HighsModelUtils.cpp by stringstreams and cal… 

    …ls to highsFprintfString(file, log_options
    @jajhall
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  2. Merge pull request #1840 from ERGO-Code/fix-1811 

    Fix 1811
    @jajhall
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  3. Identified that HighsMipSolverData::checkLimits is not called for a l… 

    …ong time before new call before mipdata_->evaluateRootNode();
    @jajhall
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  4. Added some time reporting to HighsMipSolver::run() when not submip

    @jajhall
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  5. Merge pull request #1841 from ERGO-Code/fix-1813 

    Fix 1813
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Commits on Jul 11, 2024

  1. Added setSolution for sparse primal solution and test to check-set-mi… 

    …p-solution
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Commits on Jul 14, 2024

  1. Now clearing solution when completeSolutionFromDiscreteAssignment dec… 

    …ides it's not worth it
    @jajhall
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  2. Added highs_setSolution and highs_setSparseSolution to highs_bindings

    @jajhall
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  3. Formatted HighsSolution::hasUndefined()

    @jajhall
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  4. Added Highs_setSparseSolution to C API

    @jajhall
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  5. Now using solution_.hasUndefined(); updated FEATURES.md and silenced … 

    …unti tests
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  6. Merge pull request #1843 from ERGO-Code/fix-1808 

    Add facility to specify a partial primal solution via indices and values
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Commits on Jul 15, 2024

  1. Added option mip_max_start_nodes to be used for mip_max_nodes when a … 

    …MIP is solved to complete a partial solution to avoid excessive cost
    @jajhall
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  2. Merge pull request #1844 from ERGO-Code/fix-1808 

    Added mip_max_start_nodes` to avoid excessive cost when a MIP is solved to complete a partial solution.
    @jajhall
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Commits on Jul 16, 2024

  1. Update relevant substitutions if a variable is transformed

    @fwesselm
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Commits on Jul 17, 2024

  1. Take scale into account

    @fwesselm
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  2. Update analogous to variable bounds

    @fwesselm
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  3. Add comment

    @fwesselm
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Commits on Jul 22, 2024

  1. Update CONTRIBUTING.md 

    Fix broken link to documentation subdirectory.
    @Mathemalsky
    Mathemalsky authored Jul 22, 2024
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  2. Added IPM reference and commented on absence of references for QP and… 

    … MIP
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  3. Merge pull request #1851 from Mathemalsky/master 

    Fix a broken link.
    @jajhall
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  4. Merge pull request #1852 from ERGO-Code/update-docs 

    Added IPM reference and commented on absence of references for QP and MIP
    @jajhall
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Commits on Jul 23, 2024

  1. Update index.md 

    Fix typo
    @Mathemalsky
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  2. Merge pull request #1854 from Mathemalsky/patch-1 

    Update index.md
    @jajhall
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  3. Refactor highspy for enhanced usability 

    Refactor highspy for enhanced usability

This commit significantly improves the `Highs` class within `highs.py`, focusing on enhancing usability, efficiency, and robustness. Key changes include:

- Added comprehensive docstrings.
- Improved methods for adding, deleting, and retrieving multiple variables and constraints, for a more flexible and efficient API.
- Standardized some API conventions.  Note, this is a breaking change for the constraint value/dual methods.
- Updated tests and examples.
    @mathgeekcoder
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  4. Update minimal.py 

    Updated minimal.py (removed test code)
    @mathgeekcoder
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  5. Merge pull request #1855 from mathgeekcoder/highspy-updates 

    Refactor highspy for enhanced usability and performance
    @jajhall
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Commits on Jul 26, 2024

  1. Added options write_presolved_model_to_file and write_presolved_model… 

    …_file, and writes out OK unless file name is empty
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Commits on Jul 30, 2024

  1. Highs::reportModel now uses const HighsModel& model argument so it ca… 

    …n report the presolved LP
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Commits on Jul 31, 2024

  1. Merge pull request #1863 from ERGO-Code/fix-1729 

    Fix 1729
    @jajhall
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Commits on Aug 4, 2024

  1. Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into pres… 

    …olveBugTransform
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  2. Merge pull request #1848 from fwesselm/presolveBugTransform 

    Update substitutions if a column is transformed
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Commits on Aug 5, 2024

  1. Merge branch 'latest' into fix-1789

    @jajhall
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Commits on Aug 6, 2024

  1. Add type stub file

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Commits on Aug 7, 2024

  1. Merge pull request #1867 from N-Wouda/add-type-stub-file 

    Add Python type stub file
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Commits on Aug 12, 2024

  1. Suspended ray options and use_sensitivity_filter = false

    @jajhall
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Commits on Aug 14, 2024

  1. Highs::computeInfeasibleRows renamed Highs::elasticityFilter and pass… 

    …ing general penalties
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  2. Now using elasticityFilterReturn

    @jajhall
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  3. Really should clear integrality in changeLpIntegrality if all continuous

    @jajhall
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  4. Fixed bug in HighsLp::deleteColsFromVectors

    @jajhall
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Commits on Aug 15, 2024

  1. Passes test2 in lp-feasibility-relaxation

    @jajhall
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  2. Passes AMPL model unit tests, and objective tests for galenet and woo… 

    …dinfe
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  3. Silenced unit tests and adde C API test for FeasibilityRelaxation

    @jajhall
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  4. Merge pull request #1876 from ERGO-Code/fix-1872 

    Fix 1872
    @jajhall
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Commits on Aug 16, 2024

  1. Restored full C API unit test and corrected references to format of H… 

    …essian in highs_c_api.h
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  2. Added HighsHessian.md and HighsModel.md plus documentation of Hessian… 

    …Format in enums.md
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  3. Merge pull request #1879 from ERGO-Code/fix-1872 

    Restored full C API unit test and corrected/updated documentaiton of Hessian
    @jajhall
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Commits on Aug 17, 2024

  1. writePrimalSolution: flush file after each call (#1880)

    @few
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Commits on Aug 18, 2024

  1. highspy: Expose new feasibility relaxation feature

    @few
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Commits on Aug 19, 2024

  1. HPresolve::fixColToLower/Upper now reanmed fixColToLower/UpperOrUnbou… 

    …nded and returns true if fixing to infinite value
    @jajhall
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  2. Added dumm conditional for unboundedness to be handled

    @jajhall
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  3. Now handles all returns of true for fixColToLower/UpperOrUnbounded

    @jajhall
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  4. Corrected formatting in highs_c_api.h

    @jajhall
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  5. Merge pull request #1884 from few/highspy-feasibilityRelaxation 

    highspy: Expose new feasibility relaxation feature
    @jajhall
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  6. merge master into release_gil

    @michaelbynum
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  7. run solve in background thread so that keyboard interrupt works

    @michaelbynum
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  8. Merge pull request #1885 from ERGO-Code/fix-1883 

    Fix 1883
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Commits on Aug 20, 2024

  1. merge latest into release_gil

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Commits on Aug 21, 2024

  1. Fix warning regarding -Wreorder

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  2. Merge pull request #1889 from fwesselm/fixWarningReorder 

    Fix compiler warning
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Commits on Aug 22, 2024

  1. col_ecol_offset now set - as const - for greater clarity

    @jajhall
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Commits on Aug 25, 2024

  1. Introduced examples/plot_highs_log.py and final logging line in MIP s… 

    …olver to allow complete plotting
    @jajhall
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  2. Now plotting gap

    @jajhall
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  3. Updated examples/plot_highs_log.py

    @jajhall
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  4. Moved key and using identifiers for colours to ease changes; updated … 

    …FEATURES.md
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  5. Merge pull request #1894 from ERGO-Code/MIP-log-plotter 

    Mip log plotter
    @jajhall
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Commits on Aug 26, 2024

  1. Merge pull request #1890 from ERGO-Code/fix-1872a 

    `col_ecol_offset` now set - as const - for greater clarity
    @jajhall
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  2. Deleted stray prinf in HighsMipSolver.cpp

    @jajhall
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Commits on Aug 27, 2024

  1. Fix uninitialized arrays

    @fwesselm
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  2. Use decltype and auto some more

    @fwesselm
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Commits on Aug 28, 2024

  1. Merge pull request #1897 from fwesselm/uninitArrays 

    Initialize some arrays
    @jajhall
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  2. plot_highs_log.py now avoids printing spurious incumbent lines when b… 

    …est solution is NaN
    @jajhall
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  3. Merge pull request #1898 from ERGO-Code/MIP-log-plotter 

    plot_highs_log.py now avoids printing spurious incumbent lines when best solution is NaN
    @jajhall
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  4. use std::array instead of C arrays if possible

    @fwesselm
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  5. Chaser

    @fwesselm
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  6. Added public enum HessianFormat, public class HighsHessian, private s… 

    …tatic extern int Highs_passHessian, private static extern int Highs_passModel and private static extern int Highs_getHessianNumNz to highs_csharp_api.cs
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  7. Added dim to HessianFormat and started adding Hessian to call_highs_f… 

    …rom_csharp.cs
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  8. Make the LP in call_highs_from_csharp.cs feasible!

    @jajhall
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  9. Completed call_highs_from_csharp.cs by passing a Hessian and resolving

    @jajhall
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  10. Use std::array in other places

    @fwesselm
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  11. Merge pull request #1902 from ERGO-Code/fix-1900a 

    Fixing #1900
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Commits on Aug 29, 2024

  1. Use std::next a little bit

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Commits on Aug 30, 2024

  1. Make hashes an std::array

    @fwesselm
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Commits on Sep 2, 2024

  1. Make entries an std::array

    @fwesselm
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  2. Merge branch 'HighsHashTreeChanges2' of https://github.com/fwesselm/H… 

    …iGHS into useStdArray

# Conflicts:
#	src/util/HighsHashTree.h
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  3. Fix warning along the way

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Commits on Sep 3, 2024

  1. Two minor changes

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  2. No need to check for null termination

    @fwesselm
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  3. Fix typo

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Commits on Sep 4, 2024

  1. Merge pull request #1908 from fwesselm/useStdArray 

    Some minor changes
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  2. Formatted

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Commits on Sep 6, 2024

  1. Precompute expensive computations 

    Replace hot FDIVs with FMULs through saving off the inverse values
outside the loops, so we don't incur the cost on each loop iteration.
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  2. Merge pull request #1911 from heshpdx/master 

    Precompute expensive computations
    @jajhall
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  3. Revert "Precompute expensive computations"

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  4. Merge pull request #1912 from ERGO-Code/revert-1911-master 

    Revert "Precompute expensive computations"
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  5. Replace expensive computations 

    Replace hot FDIVs with FMULs through precomputing inverse values
outside the loops. FDIVs are always more expensive than FMULs,
although the amount varies per CPU microarchitecture.
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Commits on Sep 7, 2024

  1. Merge pull request #1914 from heshpdx/div_fixes 

    Replace expensive computations
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  2. Merge pull request #1886 from michaelbynum/release_gil 

    Release GIL and Run in Background Thread
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Commits on Sep 8, 2024

  1. Now reading rvb-sub, but need to add the comment trim to other MPS re… 

    …ad methods to pass unit test
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Commits on Sep 9, 2024

  1. Formatted with Ubuntu clang-format version 14.0.0-1ubuntu1.1

    @jajhall
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  2. Merge pull request #1909 from ERGO-Code/fix-1908 

    Fix 1908
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Commits on Sep 10, 2024

  1. Fix some typos

    @fwesselm
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  2. Add utility for computing fractional part

    @fwesselm
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  3. Added src/solvers.md

    @jajhall
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  4. Fixed internal links

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  5. Merge pull request #1916 from ERGO-Code/fix-1915 

    Fix 1915
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  6. Added PDLP!

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  7. Merge pull request #1917 from ERGO-Code/fix-1915 

    Added PDLP to docs!
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Commits on Sep 11, 2024

  1. Tiny simplification

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  2. Merge pull request #1918 from fwesselm/minorStuffAgain 

    Add function to compute fractional part
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  3. Methods receiving matrix data where only small values are explicit ze… 

    …ros (so removed internally) are now silent and return HighsStatus::kOk (since internal matrix is exact)
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  4. Nullified changes due to clang-format version

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  5. Added comment.mps

    @jajhall
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Commits on Sep 12, 2024

  1. Introduced HMpsFF::getMpsLine, eliminating mpsCommentTrim

    @jajhall
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  2. Start replacing use of getline by getMpsLine

    @jajhall
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  3. Now using getMpsLine rather than getline

    @jajhall
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  4. getMpsLine now trims lines and the checks is_empty

    @jajhall
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  5. Merge branch 'latest' into consider-1911

    @jajhall
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  6. c cc cpp h hpp

    @galabovaa
    galabovaa committed Sep 12, 2024
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  7. workflow update

    @galabovaa
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  8. exclude

    @galabovaa
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  9. extern

    @galabovaa
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  10. exclude

    @galabovaa
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  11. exclude

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  12. versions only

    @galabovaa
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  13. empty inits diff with 18.3

    @galabovaa
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  14. Merge pull request #1920 from ERGO-Code/fix-1860 

    Fix 1860
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  15. Merge pull request #1922 from ERGO-Code/clang-format-update 

    Clang format update
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  16. Merged latest into this branch and fixed trivial conflict

    @jajhall
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  17. Merge pull request #1919 from ERGO-Code/fix-1899 

    Methods receiving matrix data where only small values are explicit ze…
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Commits on Sep 13, 2024

  1. An attempt to fix potential deadlock issues in Windows. 

    Removes synchronization with worker threads on shutdown. Also removes the "search" for the main executor in the worker threads.

Instead we simply pass the main executor to the thread as a parameter.  We also pass the underlying shared_ptr to avoid potential edge cases where reference count drops to zero before some threads initialize.

I made the run_worker static to avoid any confusion about "this" vs "executor->ptr", and so it uses the shared_ptr to reference the shared memory.

The last worker thread will delete the shared memory, via the shared_ptr reference count.
    @mathgeekcoder
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  2. Changed HighsTaskExecutor to explicitly handle reference counting to … 

    …ensure shared memory is kept alive until all threads have finished.

Changed identification of main thread to use std::thread::id rather than thread_local memory pointer.

Added vector of workerThreads which can be detached or joined on shutdown.

Ensured that shutdown can only block if called on main thread, otherwise it might be possible to deadlock.

Manually using cache_aligned memory allocation, it was used previously with shared_ptr and I wanted to keep it just in case.

Note: I had some weird issues when compiling with /MD flag with mvsc.  It would run but often crash.  /MT flag works consistently for me.
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Commits on Sep 14, 2024

  1. Very minor change. I had an extra new line and it was bugging me.

    @mathgeekcoder
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  2. Merge branch 'latest' into consider-1911

    @jajhall
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  3. Updated FEATURES.md

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Commits on Sep 16, 2024

  1. debug_memory

    @galabovaa
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  2. Created new branch with new PR to avoid ugly rebase issue. 

    Major highspy update:
* changed `highs_linear_expression` to be immutable by default
* improved callback support
* improved test coverage (99%)
* performance and usability enhancements
* Support `__iadd__`, `__imul__`, etc.
* Updated chain comparison support in immutable setting
* `h.val()` can take `highs_linear_expression`
* `expr == [lb,ub]` -> `lb <= expr <= ub` syntax
* `qsum`
* added pretty print `__repr__` and `__str__`
* added KeyboardInterrupt support
* added user interrupt
* fixed slicing issues with numpy and highs
* added `resetGlobalScheduler`
* released GIL for `Presolve`
* fixed issues with deadlock on Windows
* fixed MIP solution callback issue
* support `getExpr` that creates a `highs_linear_expression` from existing row

Should address multiple issues: #1865, #1882, #1888, #1892, #1903, #1904, and perhaps #1905
    @mathgeekcoder
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Commits on Sep 17, 2024

  1. thread OK leak maybe not

    @galabovaa
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  2. add sanitizers to cmake

    @galabovaa
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  3. ubuntu sanitizers workflow

    @galabovaa
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  4. Merge branch 'tsan-latest' into tsan-test-fix

    @galabovaa
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  5. bool isMainThread

    @galabovaa
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  6. set main elsewhere

    @galabovaa
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  7. Added skeleton getKappa and unit test

    @jajhall
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Commits on Sep 18, 2024

  1. Merge branch 'tsan-latest' into check

    @galabovaa
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  2. fix cmake regex 

    "
    @galabovaa
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  3. wip system error

    @galabovaa
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  4. not segfaulting

    @galabovaa
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  5. Now calling ekk_instance_.computeBasisCondition(); but LP needs to be… 

    … passed
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  6. shutdown

    @galabovaa
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Commits on Sep 19, 2024

  1. comment

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  2. can shut down executor at the end of exe now

    @galabovaa
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  3. assume shutdown will not be called from exe, add option later on

    @galabovaa
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  4. comment'

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  5. clean up 1. 

    "
    @galabovaa
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  6. formatting

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Commits on Sep 20, 2024

  1. Merge pull request #1927 from ERGO-Code/consider-1911 

    Consider 1911
    @jajhall
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  2. move git has further up

    @galabovaa
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  3. clean up

    @galabovaa
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  4. Added double computeBasisCondition() { return computeBasisCondition(t… 

    …his->lp_); } and now using passed HighsLp; Formatted
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  5. Merge branch 'latest' into fix-1869

    @jajhall
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  6. fix Markdown list syntax in solvers.md

    @pierre-haessig
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  7. Add utility

    @fwesselm
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  8. Merge pull request #1939 from pierre-haessig/patch-1 

    fix Markdown list syntax in solvers.md
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  9. Only check for timeout if time_limit is finite, and don't consider ti… 

    …med logging if output_flag is false; formatted
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Commits on Sep 21, 2024

  1. Several significant updates: 

    * Fixed all static analysis (strict) from pyright
* Updated typing across all highspy, including submodules
* Added numpy subclass HighspyArray. This allows for better typing, fast summation and vectorized linear expressions
* General cleanup, including fixes from ruff linting and formatting
* Added overload functions for improved intellisense
* Additional checks, tests, and code coverage
* Slight updates to cpp bindings to ensure types are available
    @mathgeekcoder
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  2. Removed reference to EllipsisType, as it first appears in Python 3.10

    @mathgeekcoder
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Commits on Sep 22, 2024

  1. rename cmake cxx test function

    @galabovaa
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Commits on Sep 23, 2024

  1. Added const bool kNoClockCalls to switch off/on most clocks; formatted

    @jajhall
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  2. Merge pull request #1943 from ERGO-Code/rename-cxx-test 

    rename cmake cxx test function
    @galabovaa
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  3. Changed type | type syntax to Union[type, type] syntax for backwa… 

    …rds compatibility.
    @mathgeekcoder
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  4. Change isinstance(x, Union[type, type]) to `isinstance(x, (type, ty… 

    …pe))` for backwards compatibility.
    @mathgeekcoder
    mathgeekcoder committed Sep 23, 2024
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  5. updates

    @galabovaa
    galabovaa committed Sep 23, 2024
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Commits on Sep 24, 2024

  1. ready to merge

    @galabovaa
    galabovaa committed Sep 24, 2024
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  2. passModelName added to C++ and C api

    @galabovaa
    galabovaa committed Sep 24, 2024
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Commits on Sep 25, 2024

  1. No longer removing trailing comments in MPS files

    @jajhall
    jajhall committed Sep 25, 2024
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  2. Removed unit test for trailing comment stripping

    @jajhall
    jajhall committed Sep 25, 2024
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  3. Merge pull request #1949 from ERGO-Code/fix-1945 

    No longer removing trailing comments in MPS files
    @jajhall
    jajhall authored Sep 25, 2024
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  4. Merge branch 'latest' into fix-1869

    @jajhall
    jajhall committed Sep 25, 2024
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  5. Now possibly computing exact kappa, and possibly reporting on compari… 

    …son with approximate kappa
    @jajhall
    jajhall committed Sep 25, 2024
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  6. Cleaned up and formatted-ish

    @jajhall
    jajhall committed Sep 25, 2024
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Commits on Sep 26, 2024

  1. Merge pull request #1948 from ERGO-Code/hanging-issue 

    Bug fix and some tests
    @galabovaa
    galabovaa authored Sep 26, 2024
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  2. Merge pull request #1942 from mathgeekcoder/highspy_major_updates 

    Significant enhancements and stability for highspy
    @galabovaa
    galabovaa authored Sep 26, 2024
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  3. Merge pull request #1881 from few/fix-1880 

    writePrimalSolution: flush file after each call (#1880)
    @galabovaa
    galabovaa authored Sep 26, 2024
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  4. :wq 

    Merge branch 'latest' into pass-model-name
    @galabovaa
    galabovaa committed Sep 26, 2024
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  5. fix test

    @galabovaa
    galabovaa committed Sep 26, 2024
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  6. test name

    @galabovaa
    galabovaa committed Sep 26, 2024
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  7. Fixed python 3.8 typing issue.

    @mathgeekcoder
    mathgeekcoder committed Sep 26, 2024
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Commits on Sep 27, 2024

  1. Some more fun with warnings

    @fwesselm
    fwesselm committed Sep 27, 2024
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  2. Merge pull request #1953 from mathgeekcoder/highspy_py38_typing_issue 

    Fix highspy python 3.8 typing compatibility issue
    @galabovaa
    galabovaa authored Sep 27, 2024
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  3. Merge branch 'latest' into pass-model-name

    @galabovaa
    galabovaa committed Sep 27, 2024
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Commits on Oct 2, 2024

  1. Merge pull request #1951 from ERGO-Code/pass-model-name 

    Pass model name
    @galabovaa
    galabovaa authored Oct 2, 2024
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  2. memory leaks

    @galabovaa
    galabovaa committed Oct 2, 2024
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  3. Merge pull request #1957 from ERGO-Code/cupdlp-memory-leaks 

    cupdlp memory leaks
    @galabovaa
    galabovaa authored Oct 2, 2024
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Commits on Oct 3, 2024

  1. Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into mino… 

    …rStuffAgainAndAgain
    @fwesselm
    fwesselm committed Oct 3, 2024
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Commits on Oct 7, 2024

  1. Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into pres… 

    …olveUtilImpliedInt
    @fwesselm
    fwesselm committed Oct 7, 2024
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Commits on Oct 8, 2024

  1. Merge pull request #1963 from fwesselm/presolveUtilImpliedInt 

    Presolve: Add utility to convert variable into an implied integer
    @jajhall
    jajhall authored Oct 8, 2024
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  2. Clang format 18 frig

    @jajhall
    jajhall committed Oct 8, 2024
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  3. Clang format 18 frig

    @jajhall
    jajhall committed Oct 8, 2024
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Commits on Oct 9, 2024

  1. Add lambda to shorten forcing row reduction in row presolve

    @fwesselm
    fwesselm committed Oct 9, 2024
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  2. Remove an unused variable

    @fwesselm
    fwesselm committed Oct 9, 2024
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  3. Merge pull request #1938 from ERGO-Code/fix-1869 

    Condition number can be computed using Highs::getKappa()
    @jajhall
    jajhall authored Oct 9, 2024
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  4. Merge pull request #1941 from ERGO-Code/fix-1930 

    Only check for timeout if time_limit is finite, and don't consider timed logging if output_flag is false; formatted
    @jajhall
    jajhall authored Oct 9, 2024
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  5. Merge pull request #1961 from fwesselm/minorStuffAgainAndAgain 

    Fix some more compiler warnings
    @galabovaa
    galabovaa authored Oct 9, 2024
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Commits on Oct 10, 2024

  1. Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into forc… 

    …ingRowLambda
    @fwesselm
    fwesselm committed Oct 10, 2024
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Commits on Oct 11, 2024

  1. Merge pull request #1968 from fwesselm/forcingRowLambda 

    Row presolve: Add lambda to check forcing rows
    @jajhall
    jajhall authored Oct 11, 2024
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  2. Add lambda to strengthen coefficients to row presolve

    @fwesselm
    fwesselm committed Oct 11, 2024
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Commits on Oct 12, 2024

  1. Verified that direction to read a sparse solution file is possible fr… 

    …om the command line
    @jajhall
    jajhall committed Oct 12, 2024
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  2. Better testing; formatted

    @jajhall
    jajhall committed Oct 12, 2024
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Commits on Oct 14, 2024

  1. Recovered useful code from fix-1966

    @jajhall
    jajhall committed Oct 14, 2024
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  2. And the unit tests from fix-1966

    @jajhall
    jajhall committed Oct 14, 2024
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  3. Merge pull request #1974 from fwesselm/strengthenCoefLambda 

    Another minor change to row presolve
    @jajhall
    jajhall authored Oct 14, 2024
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  4. Formatted

    @jajhall
    jajhall committed Oct 14, 2024
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Commits on Oct 15, 2024

  1. Now checking residual errors after IPM and PDLP, and correcting row v… 

    …alues and column duals accordingly
    @jajhall
    jajhall committed Oct 15, 2024
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  2. WIP

    @jajhall
    jajhall committed Oct 15, 2024
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  3. Formatted

    @jajhall
    jajhall committed Oct 15, 2024
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  4. Correct formatting?

    @jajhall
    jajhall committed Oct 15, 2024
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  5. Merge pull request #1978 from ERGO-Code/fix-1966a 

    Fix 1966a
    @jajhall
    jajhall authored Oct 15, 2024
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Commits on Oct 16, 2024

  1. Frigged formatting

    @jajhall
    jajhall committed Oct 16, 2024
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  2. Frig format again

    @jajhall
    jajhall committed Oct 16, 2024
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  3. Merge pull request #1972 from ERGO-Code/enhance-check-solution 

    Enhance check solution
    @jajhall
    jajhall authored Oct 16, 2024
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  4. always correct residuals

    @galabovaa
    galabovaa committed Oct 16, 2024
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  5. formatting

    @galabovaa
    galabovaa committed Oct 16, 2024
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  6. clean up extra tests here

    @galabovaa
    galabovaa committed Oct 16, 2024
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  7. Cleaned up comments before correctResiduals call in solveLp

    @jajhall
    jajhall committed Oct 16, 2024
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  8. Merge pull request #1982 from ERGO-Code/correct-residuals 

    Correct residuals
    @galabovaa
    galabovaa authored Oct 16, 2024
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Commits on Oct 17, 2024

  1. Added more to Features.md

    @jajhall
    jajhall committed Oct 17, 2024
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  2. Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into latest

    @jajhall
    jajhall committed Oct 17, 2024
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  3. version bump

    @galabovaa
    galabovaa committed Oct 17, 2024
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  4. Merge pull request #1985 from ERGO-Code/release-1.8 

    version bump
    @galabovaa
    galabovaa authored Oct 17, 2024
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