ERGO-Code/HiGHS

Issues

• Improve warm starting after model changes

  #2230 opened 14 days ago by jajhall
  0

• time_limit parameter doesn't work even if I turn off the presolve

  #2226 opened 16 days ago by paramshah-official
  4

• Towards a more efficient wrapper for HighsBasis.col_status

  #2223 opened 15 days ago by nickodell
  6

• Add `HighsLpRelaxation::Status::kTimeLimit`

  #2214 opened 20 days ago by jajhall
  1

• Extend the MPS reader to accept OBJSENSE\n MAXIMIZE, not just MAX (and ditto for MINIMIZE)

  #2220 opened 17 days ago by jajhall
  1

• `ns1760995` illustrates failure of timeout in presolve

  #2217 opened 18 days ago by jajhall
  0

• Changing a model does not invalidate stored dual ray

  #2159 opened 18 days ago by odow
  5

• Does the analytic centre calcuation ever keep running

  #2219 opened 18 days ago by jajhall
  0

• Recycling allocations

  #2215 opened 19 days ago by mmottl
  1

• Status on Parallel Tree Search in B&B

  #2210 opened 20 days ago by swiggyachint08
  1

• Feature request : read/write simplex basis for the highs executable

  #2206 opened 21 days ago by flomnes
  4

• HiGHS crashes with assertion failure

  #2205 opened 21 days ago by zxt5
  10

• Bug in presolve that incorrectly results in infeasibility

  #2204 opened 21 days ago by odow
  0

• HiGHS crashes with assertion failure

  #2185 opened 22 days ago by zxt5
  2

• HiGHS crashes after solving the model

  #2184 opened 25 days ago by datejada
  9

• Missing const qualifiers

  #2197 opened a month ago by mmottl
  3

• Prevent warm start for Pyomo

  #2193 opened a month ago by jajhall
  1

• Introduce MIP callback to receive primal solution from user

  #2172 opened a month ago by jajhall
  1

• Retain the last `n` warning/error messages and introduce methods to extract them

  #2182 opened a month ago by jajhall
  0

• HiGHS generates a different result from other solvers

  #2179 opened a month ago by zxt5
  4

• how to build QP in python?

  #2180 opened a month ago by zhouxinsheng
  1

• HiGHS crashes with `--presolve on` and `mip_rel_gap=0`

  #2178 opened a month ago by zxt5
  1

• HiGHS crashes when presolve is disabled

  #2175 opened a month ago by zxt5
  1

• Inconsistent optimal results by enable/disable presolve

  #2171 opened 2 months ago by zxt5
  4

• Inconsistent optimal results by enable/disable presolve

  #2173 opened 2 months ago by zxt5
  3

• HiGHS crashes with presolve enabled

  #2174 opened 2 months ago by zxt5
  1

• `Highs::setCallback()` does not work in this case

  #2165 opened 2 months ago by psychon
  1

• query highs presolved model, get unknown variable type

  #2169 opened 2 months ago by wang123zhao551451
  2

• Another incorrect identification of infeasibility in MIP presolve

  #2122 opened 2 months ago by jajhall
  3

• Incorrect Optimal Solution from HiGHS

  #2166 opened 2 months ago by zxt5
  7

• Highspy not build with ZLIB, can not read .gz files

  #2164 opened 2 months ago by wang123zhao551451
  2

• HighsCutGeneration.cpp:1427:8: runtime error

  #2160 opened 2 months ago by zxt5
  1

• Python API does not allow using keywords to pass arguments, making model building code harder to read

  #2149 opened 2 months ago by severinh
  5

• MIP solver returning suboptimal solution.

  #2158 opened 2 months ago by w5kao
  3

• Error writing MPS file

  #2152 opened 2 months ago by jajhall
  0

• Consistency when assessing and correcting KKT errors after IPM and PDLP

  #2155 opened 2 months ago by jajhall
  0

• Wrong mip_dual_bound for maximization problem that is solved by presolve

  #2154 opened 2 months ago by tobiass-sdl
  2

• Question: Are SOS constraints supported by the HiGHS Solver?

  #2148 opened 2 months ago by hdavid16
  5

• HighsHashTree.h:855:32: runtime error

  #2141 opened 2 months ago by FlorianSchwendinger
  11

• Can not exit after solve finished when use command line solve on windows

  #2146 opened 2 months ago by S-yangbin
  2

• inconsistent save_non_semi_variable_index in HighsLP of analytic center

  #2142 opened 2 months ago by svigerske
  2

• Uninitialised variable causing UB

  #2129 opened 2 months ago by psychon
  5

• segfault in ctest

  #2136 opened 2 months ago by jajhall
  1

• need example of Multi-objective optimization for the 1.9.0 release

  #2135 opened 2 months ago by shuaiwang88
  3

• No warm start after removing constraint

  #2125 opened 2 months ago by akhilesh-bayer
  3

• Duplicate warning check in meson.build

  #2128 opened 2 months ago by psychon
  0

• build_webdemo.sh does not generate HTML file

  #2118 opened 2 months ago by mbrachner
  4

• Error: TeeStream: deadlock observed joining reader threads

  #2121 opened 2 months ago by KelvinCheng5507
  2

• Unit tests failure on 32-bit architecture

  #2120 opened 3 months ago by Harry-Chen
  1

• Problems reading mps files

  #2115 opened 3 months ago by mhechthz
  1