n would be to use the FunctionParser
> <https://dealii.org/developer/doxygen/deal.II/classFunctionParser.html>
> class,
> which seems to be able to do everything that you are doing in
> this PoiseuilleBoundaryValues class and more. You could even write the
> evaluated expressio
if(!mumps_solver) {
> mumps_solver = std_cxx11::shared_ptr (new
> TrilinosWrappers::SolverDirect(solver_control, data)); mumps_solver->
> initialize (mass_matrix); } // solve for ax { TrilinosWrappers::MPI::
> Vector tmp (locally_owned_dofs, mpi_communicator); mumps_solver->solve (
> tm
mmunicator); mumps_solver->solve (
> tmp, rhs); constraints.distribute (tmp); ax = tmp; }
>
>
> Best
> praveen
>
> On Sat, Feb 11, 2017 at 9:19 AM, Lailai Zhu <laila...@gmail.com
> > wrote:
>
>> hi, dear all,
>>
>> I am looking for an dealII example tha
hi, dear all,
I am looking for an dealII example that uses trilino's amesos direct
solver with MPI,
i guess more specifically, i mean how to call amesos_mumps solver based on
MPI. I have installed
them correctly with dealII. I think i need to use the subroutine
void solve
Now the only thing I need to know what is the
one-to-one
correspondence between the above 2-by-2 matrix and the four entries
of the tensor?
Thanks in advance,
best,
lailai
On Sunday, December 11, 2016 at 9:58:49 PM UTC-5, Wolfgang Bangerth wrote:
>
> On 12/10/2016 05:18 PM, Lailai Zhu
HI, dear dealII users and supporters,
I am a very new user of dealII and knows very little about C++.
I started everything from the step-31, Stokes equations solving vector
field 'u' and scalar field 'p',
and a temperature equation for 'T'.
My problem is similar to this, namely I have a
