If assigned a preconditioner to A11 with this cmd options: -fieldsplit_0_ksp_type gmres -fieldsplit_0_pc_type ilu -fieldsplit_1_ksp_type gmres -fieldsplit_1_pc_type ilu
Then I got this error: "Could not locate a solver type for factorization type ILU and matrix type schurcomplement" How could I specify a preconditioner for A11? BR, Xiaofeng On Sep 26, 2022, at 11:02, 晓峰 何 <tlan...@hotmail.com<mailto:tlan...@hotmail.com>> wrote: -fieldsplit_0_ksp_type gmres -fieldsplit_0_pc_type ilu -fieldsplit_1_ksp_type gmres -fieldsplit_1_pc_type none
