Dear PETSc Developers,<br><br>I have an MPIAIJ matrix, I want to use MatPartitioning functions to repartition the matrix.<br>Before doing this, I need to do MatCreateMPIAdj to generate an Adj Mat.<br>Could you give me some hints about how to get &quot;i&quot; and &quot;j&quot; (<a href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatCreateMPIAdj.html">http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatCreateMPIAdj.html</a>) from existing MPIAIJ matrix?<br>
<br>Thank you very much,<br>Yujie<br>