Hello everyone, I'm really new to Petsc and when I try to run ksp/ksp/examples/tutorials/ex27
I get this error [0]PETSC ERROR: Object is in wrong state [0]PETSC ERROR: Must call MatXXXSetPreallocation() or MatSetUp() on argument 1 "mat" before MatGetFactorAvailable() [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting. [0]PETSC ERROR: Petsc Release Version 3.6.0, unknown [0]PETSC ERROR: ./ex27 on a arch-linux2-cxx-debug named scourge by mehrzads Wed Jul 15 11:27:48 2015 [0]PETSC ERROR: Configure options --with-mpi=1 --prefix=/opt/petsc --with-clanguage=cxx [0]PETSC ERROR: #1 MatGetFactorAvailable() line 4199 in /../matrix.c [0]PETSC ERROR: #2 PCGetDefaultType_Private() line 27 in /../precon.c [0]PETSC ERROR: #3 PCSetFromOptions() line 159 in /../pcset.c [0]PETSC ERROR: #4 KSPSetFromOptions() line 358 in /../itcl.c Can you help me identify the problem? Best, Mehrzad
