a broadcast that only gets executed on idle threads
sarah-ek opened this issue · comments
this would be useful for code that needs a known number of threads before entering the parallel region, though im not sure how feasible it is to implement in rayon
example user code could look like this
rayon::broadcast_idle(|num_threads, broadcast| {
let barrier = std::sync::Barrier::new(num_threads);
broadcast.run(|ctx| {
// run task on each thread
// synchronize
barrier.wait();
});
});