<div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><div>Dear friends:<br>   My code run without any problem yesterday, but it gives me the following error. I do not know what is the reason?<br>Regards<br><br>[0]PETSC ERROR: #1 PetscOptionsInsertFile() line 563 in /home/ztdep/Downloads/petsc-3.6.3/src/sys/objects/options.c<br>[0]PETSC ERROR: #2 PetscOptionsInsert() line 720 in /home/ztdep/Downloads/petsc-3.6.3/src/sys/objects/options.c<br>[0]PETSC ERROR: #3 PetscInitialize() line 828 in /home/ztdep/Downloads/petsc-3.6.3/src/sys/objects/pinit.c<br><br></div><div>PetscInitialize() must be called before PetscFinalize()<br><br></div><div>Regards</div></div><br><span title="neteasefooter"><p> </p></span></div><br><br><span title="neteasefooter"><p> </p></span></div><br><br><span title="neteasefooter"><p> </p></span></div><br><br><span title="neteasefooter"><p> </p></span></div><br><br><span title="neteasefooter"><p> </p></span>