Thank you for this tip. For my need, I only require the starting global index
on each partition since I am using local_element to do some operations like
multiplying by a local time step which is different for each cell. The
local_range function gave this info. Here is a sample usage in my code
for (; cell!=endc; ++cell)
if(cell->is_locally_owned())
{
const unsigned int cell_no = cell_number (cell);
cell->get_dof_indices (dof_indices);
for(unsigned int i=0; i<fe.dofs_per_cell; ++i)
{
unsigned int i_loc = dof_indices[i] - local_range.first;
newton_update.local_element(i_loc) = dt(cell_no) *
right_hand_side.local_element(i_loc) *
inv_mass_matrix[cell_no][i];
}
}
If there is a possibility, I would like to request to retain this simple
function in the library.
Thanks
praveen
> On 01-Feb-2019, at 7:02 PM, Bruno Turcksin <bruno.turck...@gmail.com> wrote:
>
> Praveen,
>
> You can get the locally only owned IndexSet
> https://dealii.org/developer/doxygen/deal.II/classLinearAlgebra_1_1distributed_1_1Vector.html#aff5265a5af79342c77ac50d584c9d3e4
>
> <https://dealii.org/developer/doxygen/deal.II/classLinearAlgebra_1_1distributed_1_1Vector.html#aff5265a5af79342c77ac50d584c9d3e4>
> and ask for the iterator
> https://dealii.org/developer/doxygen/deal.II/classIndexSet.html#a19e94d1f725d250e3166316995e2797f
>
> <https://dealii.org/developer/doxygen/deal.II/classIndexSet.html#a19e94d1f725d250e3166316995e2797f>
>
> Best,
>
> Bruno
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