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let (result_tx, result_rx) = channel();
let myrank = self.universe.world().rank();
info!("Start worker process {}", myrank);
// spawn the thread receiving incoming requests from the host
thread::scope(|scope| {
scope.spawn(move || loop {
let world = SystemCommunicator::world();
let host = world.process_at_rank(0);
let msg = recv_msg(&host);
match msg {
WorkerMsg::Terminate => {
result_tx.send(ResultMsg::Terminate).unwrap();
break;
}
WorkerMsg::ApplyUpdate(update) => {
if let Err(err) = self.problem.apply_update(&update) {
send_msg(&host, &ResultMsg::<P::Minorant, _>::Error { index: 0, error: err });
}
}
WorkerMsg::Evaluate { i, y } => {
debug!("Evaluate sub:{} on worker:{}", i, myrank);
if let Err(err) = self.problem.evaluate(
i,
y,
WorkerResultSender {
index: i,
sender: result_tx.clone(),
},
) {
send_msg(&host, &ResultMsg::<P::Minorant, _>::Error { index: i, error: err });
}
}
}
});
// spawn the thread receiving evaluation results forwarding them to the host
scope.spawn(move || {
let world = SystemCommunicator::world();
let host = world.process_at_rank(0);
loop {
let rmsg = result_rx.recv().expect("channel receive error");
debug!("Send result message on {}", myrank);
if let ResultMsg::Terminate = rmsg {
break;
}
send_msg(&host, &rmsg);
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let (result_tx, result_rx) = channel();
let myrank = self.universe.world().rank();
info!("Start worker process {}", myrank);
// spawn the thread receiving incoming requests from the host
thread::scope(|scope| {
scope.spawn(move || {
let world = SystemCommunicator::world();
let host = world.process_at_rank(0);
loop {
debug!("Worker recv...");
let msg = recv_msg(&host);
match msg {
WorkerMsg::Terminate => {
result_tx.send(ResultMsg::Terminate).unwrap();
break;
}
WorkerMsg::ApplyUpdate(update) => {
if let Err(err) = self.problem.apply_update(&update) {
send_msg(&host, &ResultMsg::<P::Minorant, _>::Error { index: 0, error: err });
}
}
WorkerMsg::Evaluate { i, y } => {
debug!("Evaluate sub:{} on worker:{}", i, myrank);
if let Err(err) = self.problem.evaluate(
i,
y,
WorkerResultSender {
index: i,
sender: result_tx.clone(),
},
) {
send_msg(&host, &ResultMsg::<P::Minorant, _>::Error { index: i, error: err });
}
debug!("Evaluate sub:{} on worker:{} returned", i, myrank);
}
}
}
debug!("Terminate receive thread on worker:{}", myrank);
});
// spawn the thread receiving evaluation results forwarding them to the host
scope.spawn(move || {
let world = SystemCommunicator::world();
let host = world.process_at_rank(0);
loop {
let rmsg = result_rx.recv().expect("channel receive error");
debug!("Send result message on {}", myrank);
send_msg(&host, &rmsg);
if let ResultMsg::Terminate = rmsg {
break;
}
}
debug!("Terminate send thread on worker:{}", myrank);
});
});
info!("Terminate worker process {}", myrank);
}
}
|