I believe this is intended to work with most any implicit solver, *provided* the initial conditions are compatible. It was added by Emil, but I don't see it explicitly tested in PETSc.
"Huck, Moritz via petsc-users" <petsc-users@mcs.anl.gov> writes: > Hi, > TS_EQ_DAE_SEMI_EXPLICIT_INDEX(?) are defined in TSEquationType but not > mentioned in the manual. > Is this feature functional ? > If yes how do I have to define the RHSFunction? > (I am asking since the ODE variant has it defined as G= M^-1 g, which cannot > work for a DAE) > > Best Regards, > Moritz
