On 8/17/22 13:04, Bruno Turcksin wrote:
It's possible to do it using WorkStream::run (see here
<https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdealii.org%2Fdeveloper%2Fdoxygen%2Fdeal.II%2FnamespaceWorkStream.html%23ab8ceb010811941c351803b671a19fb73&data=05%7C01%7CWolfgang.Bangerth%40colostate.edu%7Ca97d7a48b22746f58ad208da808340b0%7Cafb58802ff7a4bb1ab21367ff2ecfc8b%7C0%7C0%7C637963598455384647%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=jCYZjVQjmFZ2YEuOUsJtrj8ZSgabPVskjBEfZQGGZfM%3D&reserved=0>)
However, you need to create the ordering manually by "coloring" the
cells. All the cells in the same color can be worked on in parallel but
the colors are treated sequentially; we first go over all the cells in
color 0, then in color 1, etc.
Alternatively, WorkStream works on a set of iterators. These can be the
iterators into a
std::set<DoFHandler::active_cell_iterator, COMP>
if you choose the right comparator object that ensures that
active_cell_iterators that need to be worked on first compare as less
than those active_cell_iterators that need to be worked on later.
Best
W.
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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