Just in case you want to try the exact algorithm you attached, it can be used in PETSc with -pc_type hypre -pc_hypre_type euclid
Hong (Mr.) > On Jan 12, 2021, at 8:42 AM, Chen Gang <569615...@qq.com> wrote: > > > Dear Professor, > > I'm writing about this mail about the ILU algorithm in PETSc. I have noticed > that the ILU in PETSs cannot be paralleled, and the Hypre providing the > parallel implement of ILU. > > My questions is : why the PETSc does not provide the parallel implement of > ILU directly, instead of linking to the Hypre to obtain the Parallel ILU > algorithm? > > PS: the attachment is the Parallel ILU algorithm in Hypre. > > I'm looking forward to hear you! > > Best, > > Gang Chen > > Sichuan Univertsity, > School of Mathematics, > Chengdu, China > <parallelILU2.pdf>
