On 02/11/16 13:27, T. M. Bendall wrote:

Dear Firedrakers,

Having updated Firedrake I'm having trouble running old code that 
previously worked. In particular one of the variational solvers isn't 
working.

The code is:

     Q_initialprob = NonlinearVariationalProblem(Functional, z, bcs = bc1,
                                         nest=False)

     Q_initialsolve = NonlinearVariationalSolver(Q_initialprob,
                                         solver_parameters={
                                             'ksp_type':'gmres',
                                             'pc_type':'lu',
'pc_factor_mat_solver_package': 'mumps'
                                         })

The specification of the matrix type now occurs in the
solver_parameters.  Use 'mat_type': 'aij' in the solver_parameters dict.

Lawrence

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