Hi Zhidong,
On Monday, October 21, 2019 at 1:42:30 AM UTC+2, Zhidong Brian Zhang wrote:
>
> Thank you very much for your prompt reply, Konrad!
>
> My confusion is the output of cell->id(), for example,
> 0_3:000
> 0_3:200
> 0_3:003
> 0_3:006
> 0_3:406
> 0_3:606
> 0_3:206
> 0_3:007
> 0_3:407
> 0_3:607
> 0_3:207.
>
> What type I need to use as the key in std::map? And is the map
> parallel-distributed? Because my model requires that.
>
> You can use the CellId object as a key itself:
std::map<CellId, ClassWithCellInfo> cell_info_map;
If you need the map distributed across nodes according to the distribution
of cells then you can initialize the map (on each node separately) through
for (; cell!=endc; ++cell)
{
if (cell->is_locally_owned())
{
CellId current_cell_id(cell->id());
std::pair<typename std::map<CellId, ClassWithCellInfo>::iterator, bool >
result;
result = cell_basis_map.insert(std::make_pair(cell->id(),
cell_info_map));
// ClassWithCellInfo must have a copy constructor
Assert(result.second,
ExcMessage ("Insertion of cell_info_map into std::map failed. "
"Problem with copy constructor?"));
} // end if
} // end ++cell
Best,
Konrad
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