On Aug 3, 2012, at 1:34 PM, Amneet Bhalla <mail2amneet at gmail.com> wrote:
> Thanks Matt for pointing to Makefile manual. I just included these lines
>
> include $(PETSC_DIR)/conf/variables
> LIBS = $(PETSC_LIB)
>
> in the hypre's makefile and it is now working. This issue is resolved. I will
> try to write preconditioner using hypre's multigrid solvers.
>
> Example files which you pointed for AMG and ML are for non-linear solvers and
> distributed arrays. The
> equation I am solving is linear for which I have a sparse matrix MPIAIJ. Is
> it possible to use multigrid solvers
> in PETSc without going through the process of again creating new
> arrays/matrices?
Yup, that is exactly what the hyper BoomerAMG, Trilinos ML and PETSc gang
solvers are for.
Barry
>
>
