[petsc-dev] removing PetscOptions…() calls from main stream of computation

[Barry Smith]

   My addition of PetscOptionsGetViewer() is intended to facilitate the moving 
of PetscOptions?() calls from the main stream of computation (KSPSolve, 
SNESSolve, etc).  I've moved all PetscOptions?.() calls from VecAssemblyEnd() 
and MatAssemblyEnd() to VecSetFromOptions(), MatSetFromOptions(). We need to do 
the same for the other main stream computation routines at some point.

   Barry

Why do I care? For integrator for example small sets of ODEs I want PETSc to be 
competitive with any other integrator available.