Hello everyone, As in the note of PCSOR, it corresponds to block Jacobi with SOR on each block, not a true parallel SOR.
1) Is there a parallel sor implemented in PETSc, like the red-black Gauss Seidel? 2) If it is not a true parallel SOR, then what is the difference between options -pc_sor_forward and -pc_sor_local_forward? It seems that pc_sor_forward does not work for mpiaij format. When is pc_sor_forward used? Thanks. Xiangdong
