Improve channel distribution
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@ -187,26 +187,48 @@ impl System {
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let dt = self.max_dt();
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// Build up the boundary conditions
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// Assume all boundaries are push/pull through channels
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let channels = (0..nthreads)
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.map(|_| {
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use crossbeam_channel::unbounded;
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Direction {
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north: unbounded(),
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south: unbounded(),
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west: unbounded(),
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east: unbounded(),
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}
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})
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.collect::<Vec<_>>();
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let mut push_channels: Vec<Direction<Option<Sender<Array2<Float>>>>> =
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Vec::with_capacity(nthreads);
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let mut pull_channels: Vec<Direction<Option<Receiver<Array2<Float>>>>> =
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vec![Direction::default(); nthreads];
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// TODO: Iterate through all grids and see if they need ourself to push
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let mut requested_channels = (0..nthreads)
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.map(|_| Direction::default())
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.collect::<Vec<Direction<bool>>>();
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// Build the set of communicators between boundaries
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for wb in &self.bt {
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let mut local_push = Direction::default();
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if let euler::BoundaryCharacteristic::Grid(i)
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| euler::BoundaryCharacteristic::Interpolate(i, _) = wb.north()
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{
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let (s, r) = crossbeam_channel::bounded(1);
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pull_channels[*i].south_mut().replace(r).unwrap();
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*local_push.north_mut() = Some(s);
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}
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if let euler::BoundaryCharacteristic::Grid(i)
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| euler::BoundaryCharacteristic::Interpolate(i, _) = wb.south()
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{
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let (s, r) = crossbeam_channel::bounded(1);
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pull_channels[*i].north_mut().replace(r).unwrap();
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*local_push.south_mut() = Some(s);
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}
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if let euler::BoundaryCharacteristic::Grid(i)
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| euler::BoundaryCharacteristic::Interpolate(i, _) = wb.east()
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{
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let (s, r) = crossbeam_channel::bounded(1);
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pull_channels[*i].west_mut().replace(r).unwrap();
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*local_push.east_mut() = Some(s);
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}
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if let euler::BoundaryCharacteristic::Grid(i)
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| euler::BoundaryCharacteristic::Interpolate(i, _) = wb.west()
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{
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let (s, r) = crossbeam_channel::bounded(1);
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pull_channels[*i].east_mut().replace(r).unwrap();
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*local_push.west_mut() = Some(s);
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}
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push_channels.push(local_push);
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}
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let mut tids = Vec::new();
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for (((((((current, fut), grid), metrics), sbp), wb), bt), req_channel) in self
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for ((((((((current, fut), grid), metrics), sbp), wb), bt), chan), push) in self
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.fnow
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.into_iter()
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.zip(self.fnext.into_iter())
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@ -215,30 +237,19 @@ impl System {
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.zip(self.operators.into_iter())
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.zip(self.wb.into_iter())
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.zip(self.bt)
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.zip(requested_channels)
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.zip(pull_channels)
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.zip(push_channels)
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{
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let builder = std::thread::Builder::new().name(format!("eulersolver: {}", "smth"));
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let barrier = b.clone();
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let Direction {
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north: bt_north,
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south: bt_south,
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west: bt_west,
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east: bt_east,
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} = bt;
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let boundary_conditions = Direction {
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north: match bt_north {
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let boundary_conditions = bt.zip(chan).map(|(bt, chan)| match bt {
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euler::BoundaryCharacteristic::This => DistributedBoundaryConditions::This,
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euler::BoundaryCharacteristic::Grid(i) => {
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*requested_channels[i].south_mut() = true;
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DistributedBoundaryConditions::Channel(channels[i].south().1.clone())
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euler::BoundaryCharacteristic::Grid(_) => {
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DistributedBoundaryConditions::Channel(chan.unwrap())
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}
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euler::BoundaryCharacteristic::Interpolate(i, int_op) => {
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*requested_channels[i].south_mut() = true;
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DistributedBoundaryConditions::Interpolate(
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channels[i].south().1.clone(),
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int_op,
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)
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euler::BoundaryCharacteristic::Interpolate(_, int_op) => {
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DistributedBoundaryConditions::Interpolate(chan.unwrap(), int_op)
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}
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euler::BoundaryCharacteristic::MultiGrid(_) => unimplemented!(),
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euler::BoundaryCharacteristic::Vortex(vp) => {
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@ -247,71 +258,9 @@ impl System {
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euler::BoundaryCharacteristic::Eval(eval) => {
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DistributedBoundaryConditions::Eval(eval)
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}
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},
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south: match bt_south {
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euler::BoundaryCharacteristic::This => DistributedBoundaryConditions::This,
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euler::BoundaryCharacteristic::Grid(i) => {
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*requested_channels[i].north_mut() = true;
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DistributedBoundaryConditions::Channel(channels[i].north().1.clone())
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}
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euler::BoundaryCharacteristic::Interpolate(i, int_op) => {
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*requested_channels[i].north_mut() = true;
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DistributedBoundaryConditions::Interpolate(
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channels[i].north().1.clone(),
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int_op,
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)
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}
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euler::BoundaryCharacteristic::MultiGrid(_) => unimplemented!(),
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euler::BoundaryCharacteristic::Vortex(vp) => {
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DistributedBoundaryConditions::Vortex(vp)
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}
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euler::BoundaryCharacteristic::Eval(eval) => {
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DistributedBoundaryConditions::Eval(eval)
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}
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},
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east: match bt_east {
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euler::BoundaryCharacteristic::This => DistributedBoundaryConditions::This,
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euler::BoundaryCharacteristic::Grid(i) => {
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*requested_channels[i].west_mut() = true;
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DistributedBoundaryConditions::Channel(channels[i].west().1.clone())
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}
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euler::BoundaryCharacteristic::Interpolate(i, int_op) => {
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*requested_channels[i].west_mut() = true;
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DistributedBoundaryConditions::Interpolate(
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channels[i].west().1.clone(),
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int_op,
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)
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}
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euler::BoundaryCharacteristic::MultiGrid(_) => unimplemented!(),
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euler::BoundaryCharacteristic::Vortex(vp) => {
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DistributedBoundaryConditions::Vortex(vp)
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}
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euler::BoundaryCharacteristic::Eval(eval) => {
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DistributedBoundaryConditions::Eval(eval)
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}
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},
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west: match bt_west {
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euler::BoundaryCharacteristic::This => DistributedBoundaryConditions::This,
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euler::BoundaryCharacteristic::Grid(i) => {
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*requested_channels[i].east_mut() = true;
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DistributedBoundaryConditions::Channel(channels[i].east().1.clone())
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}
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euler::BoundaryCharacteristic::Interpolate(i, int_op) => {
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*requested_channels[i].east_mut() = true;
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DistributedBoundaryConditions::Interpolate(
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channels[i].east().1.clone(),
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int_op,
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)
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}
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euler::BoundaryCharacteristic::MultiGrid(_) => unimplemented!(),
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euler::BoundaryCharacteristic::Vortex(vp) => {
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DistributedBoundaryConditions::Vortex(vp)
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}
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euler::BoundaryCharacteristic::Eval(eval) => {
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DistributedBoundaryConditions::Eval(eval)
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}
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},
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};
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});
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let (ny, nx) = (grid.nx(), grid.ny());
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tids.push(
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builder
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@ -322,11 +271,16 @@ impl System {
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dt,
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current,
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fut,
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k: [todo!(); 4],
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k: [
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Diff::zeros((ny, nx)),
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Diff::zeros((ny, nx)),
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Diff::zeros((ny, nx)),
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Diff::zeros((ny, nx)),
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],
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boundary_conditions,
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grid: (grid, metrics),
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output: (),
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push: todo!(),
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push,
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sbp,
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t: time,
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wb,
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@ -414,17 +368,7 @@ impl DistributedBoundaryConditions {
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}
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}
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#[derive(Debug, Clone)]
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enum PushCommunicator {
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Channel(Sender<Array2<Float>>),
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None,
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}
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impl Default for PushCommunicator {
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fn default() -> Self {
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Self::None
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}
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}
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type PushCommunicator = Option<Sender<Array2<Float>>>;
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struct DistributedSystemPart {
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grid: (Grid, Metrics),
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@ -458,21 +402,17 @@ impl DistributedSystemPart {
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let mut rhs = |k: &mut euler::Diff, y: &euler::Field, time: Float| {
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// Send off the boundaries optimistically, in case some grid is ready
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match &push.north {
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PushCommunicator::None => (),
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PushCommunicator::Channel(s) => s.send(y.north().to_owned()).unwrap(),
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if let Some(s) = &push.north {
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s.send(y.north().to_owned()).unwrap()
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}
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match &push.south {
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PushCommunicator::None => (),
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PushCommunicator::Channel(s) => s.send(y.south().to_owned()).unwrap(),
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if let Some(s) = &push.south {
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s.send(y.south().to_owned()).unwrap()
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}
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match &push.east {
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PushCommunicator::None => (),
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PushCommunicator::Channel(s) => s.send(y.east().to_owned()).unwrap(),
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if let Some(s) = &push.east {
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s.send(y.east().to_owned()).unwrap()
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}
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match &push.west {
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PushCommunicator::None => (),
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PushCommunicator::Channel(s) => s.send(y.west().to_owned()).unwrap(),
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if let Some(s) = &push.west {
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s.send(y.west().to_owned()).unwrap()
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}
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use std::ops::Deref;
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