Sorry, I've clicked the send button by mistake. The setup I'm using comes from the following guide:
https://mooseframework.inl.gov/application_development/hypre.html Since I'm new to BoomerAMG I've been using that guide as a reference, but I'm not sure if those setting are appropriate from my system. Best regards, Andrea ________________________________ From: Andrea Iob <andrea_...@hotmail.com> Sent: Thursday, July 9, 2020 2:55 PM To: Mark Adams <mfad...@lbl.gov> Cc: Barry Smith <bsm...@petsc.dev>; Matthew Knepley <knep...@gmail.com>; petsc-users@mcs.anl.gov <petsc-users@mcs.anl.gov> Subject: Re: [petsc-users] DIVERGED_NANORINF when using HYPRE/BoomerAMG Yes, I'm using AIJ matrices. These are the options I'm using to set up BoomerAMG: PCHYPRESetType(preconditioner, "boomeramg"); PetscOptionsSetValue(nullptr, "-pc_hypre_boomeramg_smooth_type", "Pilut"); PetscOptionsSetValue(nullptr, "-pc_hypre_boomeramg_relax_type_all", "sequential-Gauss-Seidel"); PetscOptionsSetValue(nullptr, "-pc_hypre_boomeramg_strong_threshold", "0.7"); PetscOptionsSetValue(nullptr, "-pc_hypre_boomeramg_coarsen_type", "HMIS"); PetscOptionsSetValue(nullptr, "-pc_hypre_boomeramg_interp_type", "classical"); PetscOptionsSetValue(nullptr, "-pc_hypre_boomeramg_interp_type", "ext+i"); PetscOptionsSetValue(nullptr, "-pc_hypre_boomeramg_P_max", "2"); PetscOptionsSetValue(nullptr, "-pc_hypre_boomeramg_truncfactor", "0.3"); PetscOptionsSetValue(nullptr, "-pc_hypre_boomeramg_agg_nl", "4"); PetscOptionsSetValue(nullptr, "-pc_hypre_boomeramg_agg_num_paths", "5"); PetscOptionsSetValue(nullptr, "-ksp_error_if_not_converged", ""); This setup come from the following https://mooseframework.inl.gov/application_development/hypre.html ________________________________ From: Mark Adams <mfad...@lbl.gov> Sent: Friday, July 3, 2020 2:58 PM To: Andrea Iob <andrea_...@hotmail.com> Cc: Barry Smith <bsm...@petsc.dev>; Matthew Knepley <knep...@gmail.com>; petsc-users@mcs.anl.gov <petsc-users@mcs.anl.gov> Subject: Re: [petsc-users] DIVERGED_NANORINF when using HYPRE/BoomerAMG 3) Schwarz-smoothers #0 0x00007ffff50897f4 in dtrsm_ () from /opt/lapack/3.8.0-gcc.7.4.0/lib64/libblas.so.3 #1 0x00007ffff550924b in dpotrs_ () from /opt/lapack/3.8.0-gcc.7.4.0/lib64/liblapack.so.3 This seems to be Cholesky ... which would not work for you if you are not symmetric (Navier-Stokes). If GAMG works then and pilut going crazy but quite there yet, I would think there is a hypre interface problem of some sort. Hypre has been used a lot so this is a surprise. Do you use AIJ matrices? Not BAIJ or anything else.
