Trait RONExportParallel

pub trait RONExportParallel<'a, C: Communicator + 'a>: ParallelGrid<C = C>
where
    Self::LocalGrid: RONExport,
    Self: 'a,
{
    // Provided method
    fn export_as_ron(&'a self, filename: &str) { ... }
}

Parallel grid export for RON

Provided Methods

fn export_as_ron(&'a self, filename: &str)

Export as RON

Examples found in repository

examples/test_parallel_io.rs (line 53)

fn test_parallel_export<C: Communicator>(comm: &C) {
    let size = comm.size();

    let n = 10;
    let grid = example_single_element_grid(comm, n);
    let filename = format!("_examples_parallel_io_{size}ranks.ron");
    grid.export_as_ron(&filename);
}

examples/parallel_io.rs (line 34)

fn main() {
    let universe: Universe = mpi::initialize().unwrap();
    let comm = universe.world();
    let rank = comm.rank();

    let g = if rank == 0 {
        // Create a grid using the shapes module: unit_cube_boundary will mesh the surface of a cube
        let serial_g = shapes::unit_cube_boundary::<f64>(4, 5, 4, ReferenceCellType::Triangle);

        // Distribute this grid across processes
        serial_g.distribute(&comm, GraphPartitioner::None)
    } else {
        let b = SingleElementGridBuilder::<f64>::new(3, (ReferenceCellType::Triangle, 1));
        b.create_parallel_grid(&comm, 0)
    };

    // If the serde option is used, the raw grid data can be exported in RON format
    g.export_as_ron("_unit_cube_boundary_parallel.ron");

    // Wait for export to finish
    comm.barrier();

    // A grid can be re-imported from raw RON data. Note that it must be imported on the same number of processes as it was exported using
    let g2 = ParallelGridImpl::<'_, _, SingleElementGrid::<f64, CiarletElement<f64, IdentityMap>>>::import_from_ron(&comm, "_unit_cube_boundary_parallel.ron");

    // Print the first 5 cells of each grid on process 0
    if rank == 0 {
        println!("The first 5 cells of the grids");
        for (cell, cell2) in izip!(g.local_grid().cell_iter(), g2.local_grid().cell_iter()).take(5)
        {
            println!(
                "{:?} {:?}",
                cell.topology().sub_entity_iter(0).collect::<Vec<_>>(),
                cell2.topology().sub_entity_iter(0).collect::<Vec<_>>(),
            );
        }
    }
}

Implementors

impl<'a, C: Communicator + 'a, G: ParallelGrid<C = C>> RONExportParallel<'a, C> for G

where Self::LocalGrid: RONExport, Self: 'a,