Thank you for you mention! Just a comment on the euclid in petsc， the bj parameter(forblock Jacobi） for euclid was set  but not allowed in the option，just add few code will enable the -bj option.

Best,
Gang



------------------ Original ------------------
From: Zhang, Hong <hongzhang@anl.gov>
Date: Sat,Jan 16,2021 3:00 PM
To: Chen Gang <569615491@qq.com>
Cc: petsc-dev <petsc-dev@mcs.anl.gov>, cglwdm <cglwdm@scu.edu.cn>
Subject: Re: [petsc-dev] About parallel of ILU