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use std::sync::mpsc::{Receiver, Sender, channel};
use std::thread::JoinHandle;
use super::*;
#[derive(Debug)]
struct RequestBuffer {
mask_buff: Vec<u64>,
pointer: usize,
}
impl RequestBuffer {
pub fn new(size: usize) -> Self {
RequestBuffer {
mask_buff: vec![0; size],
pointer: 0,
}
}
pub fn read(&mut self, request: CheckRequest) -> Option<&[u64]> {
self.mask_buff[self.pointer] = request.bitmask;
self.pointer += 1;
if self.pointer == self.mask_buff.len() {
self.pointer = 0;
return Some(self.mask_buff.as_ref());
}
None
}
}
pub struct OclManager {
job_id: u64,
host_sender: Sender<Message>,
output_sender: Sender<Message>,
reciever: Receiver<Message>,
buffers: Vec<RequestBuffer>,
output_handle: JoinHandle<String>,
host_handle: JoinHandle<String>,
}
impl OclManager {
pub fn launch_sevice(
permutations: &[&[u32]],
permutations_mask: &[u64],
n: u32,
// Workgroup size, set to 0 for max
wg_size: u32,
) -> (Sender<Message>, JoinHandle<String>) {
let (h, w) = crate::solvers::wall_stats(n);
let src = include_str!("check.cl");
let (output_sender, output_handle) =
super::output::Output::launch_sevice(permutations, permutations_mask, n, h, w);
let (host_sender, host_handle) =
super::host::Host::launch_sevice(permutations_mask, n, h, w, wg_size as usize, src);
let (receiver, sender) = channel();
let mut buffers = Vec::with_capacity((n - h + 1) as usize);
for _ in 0..=(n - h) {
buffers.push(RequestBuffer::new(wg_size as usize));
}
let manager = Self {
0,
host_sender,
output_sender,
receiver,
buffers,
output_handle,
host_handle,
}
(sender,
std::thread::Builder::new()
.name("GPU Manager Deamon".into())
.spawn(move || {
manager.run();
})
.unwrap())
}
fn run(mut self) {
loop {
match self.reciever.recv().expect("Channel to GPU Manager broke") {
Message::CheckRequest(request) => {
if let Some(buffer) = self.buffers[request.queue as usize].read(request) {
self.host_sender
.send(Message::HostMessage((self.job_id, buffer.0.into())));
self.output_sender
.send(Message::OutputMessage((self.job_id, buffer.1.into())));
self.job_id += 1;
}
}
Message::Terminate => {
panic!("flush buffers");
self.host_sender.send(Message::Terminate);
self.host_handle.join();
self.output_sender.send(Message::Terminate);
self.output_handle.join();
return;
}
_ => println!("Invalid MessageType"),
}
}
}
}
|
