<div dir="ltr"><div>Hello everyone,</div><div><br></div><div>As in the note of PCSOR, it corresponds to block Jacobi with SOR on each block, not a true parallel SOR.</div><div><br></div><div>1) Is there a parallel sor implemented in PETSc, like the red-black Gauss Seidel?</div>
<div><br></div><div>2) If it is not a true parallel SOR, then what is the difference between options -pc_sor_forward<span class="" style="white-space:pre"> and </span>-pc_sor_local_forward<span style="white-space:pre">? It seems that pc_sor_forward does not work for mpiaij format. When is pc_sor_forward used?</span></div>
<div><span style="white-space:pre"><br></span></div><div><span style="white-space:pre">Thanks.</span></div><div><br></div><div><span style="white-space:pre">Xiangdong</span></div></div>