[WIP] Introduce the new ingredient LagrangeNewtonSubproblem#137

Open

cvanaret wants to merge 15 commits intomainfrom subproblem

+1,058-733

Commits on Jan 30, 2025

Passed LagrangeNewtonSubproblem to linear solver MA57. Functional but can be optimized (allocate a unique matrix and fill submatrices). Preprocessing disabled, MA27 and MUMPS were also disabled
cvanaret
committed

Commits on Feb 2, 2025