Comments (1)
It's not a bug. The --parallel option controls whether the parallel simplex solver is used if the model in HiGHS is an LP. For symmetry detection in the MIP solver parallelism is always used unless threads=1 is set.
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Related Issues (20)
- Documentation of HiGHS' output HOT 2
- Does HiGHS Support Custom Solving Algorithms?
- Solving alternative systems using `Highs::basisSolve` and `Highs::basisTransposeSolve` HOT 1
- Fix the O(N^2) cost of passColName and passRowName when adding columns and rows one-by-one
- Re-solving many times with primal simplex can lead to basis issues (rare occurrence) HOT 1
- Evaluating model complexity in highs avoiding device related performance
- Add irreducible inconsistent system (IIS) identification for LP
- Build fails on macOS: `f951: Error: '-fno-fat-lto-objects' are supported only with linker plugin` HOT 3
- Get Column Cost HOT 1
- Spurious statement of Integer when writing model HOT 1
- primal_solution_status is reported as kSolutionStatusFeasible for infeasible model when solver=ipm and presolve=off
- How to Set a Partial MIP Solution using setSolution()? HOT 11
- Logging header not printed if `h.writeModel` or `h.writeSolution` called before a method using the HighsIO
- `Highs::writeModel("")` uses `HighsIO`, but `Highs::writeSolution("")` uses `fprintf` for stdout HOT 1
- HiGHS 1.7.1 HighsCallbackDataOut data type can no longer be accessed directly for mip_solution item. HOT 1
- Time limit solving Jeroslow MIP seems not to be triggered HOT 2
- Stop MIP solve on `simplex_iteration_limit` (or other LP iteration limit) - Access iteration count via callback? HOT 2
- CMake configuration fails with versions >3.23.0 and <3.24.0
- Longer runtimes for ILP models created with `addVariable` versus `addCol` HOT 4
- PInvokeStackImbalance exception when targetting .NET Framework (Windows)
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