[petsc-users] A qustion of PETSc

[w_ang_temp]

Hello
     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.
    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.
    So where could be wrong? Can you give me some hints on how I can debug? Thanks.
                                  Jim
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