<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><DIV>Hello</DIV>
<DIV> I am a beginner of PETSc.I find the petsc-users lists is very useful, however I do not know how to ask a question in it. So can you tell me? And below is what I want to ask.<BR> I am solving Ax=b with PETSc. And I only use it in a fortran subroutine to get x ,then the main function of my program use x to do other things. The question is that: when the process is 1(mpiexec -n 1),the result of my program is ok, but when the process is more than 1 the result is wrong.<BR> So where could be wrong? Can you give me some hints on how I can debug? Thanks.</DIV>
<DIV> Jim<BR></DIV></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"></span></span>