> Hi Sonya, > > As this is Fortran 90, I think you should be using the double colon to > allocate variables: > > PetscReal :: norm > > Regards, > Wadud.
Although you are right, compiler doesn't raises error due to the wrong declaration type of norm, it keeps showing where PetscReal is not known. "Error: Unclassifiable statement at (1)" Regards,
