make partitioner run in parallel over nets
This commit is contained in:
SpaceCat-Chan
Lofty
parent
3931daefc7
commit
0a46c5b491
@ -275,229 +275,282 @@ fn partition_nets(
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let mut explored_pips = AtomicUsize::new(0);
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for (name, net) in nets.iter() {
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let mut message = ctx.name_of(*name).to_str().unwrap().to_string();
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let message = if message.len() > 31 {
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message.truncate(28);
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format!("{}...", message)
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} else {
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message
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};
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progress.set_message(message);
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progress.inc(1);
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let net = unsafe { net.as_mut().unwrap() };
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let dereffed_nets: Vec<_> = nets
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.iter()
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.map(|(name, net)| (name, unsafe { net.as_mut().unwrap() }))
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.collect();
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if net.is_global() {
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continue;
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}
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let dereffed_port_refs: HashMap<_, _> = dereffed_nets
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.iter()
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.filter_map(|(name, _)| nets.users_by_name(**name).map(|a| (*name, a)))
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.collect();
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let source = unsafe { net.driver().as_ref().unwrap() };
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let arcs = dereffed_nets
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.into_par_iter()
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.filter(|(_, net)| !net.is_global())
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.filter_map(|(name, net)| {
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let source = unsafe { net.driver().as_ref().unwrap() };
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source.cell().map(|cell| (name, net, cell))
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})
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.flat_map(|(name, net, source)| {
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let source = source.location();
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let source_is_north = source.x < x;
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let source_is_east = source.y < y;
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let source_wire = ctx.source_wire(net);
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let source = source.cell();
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if source.is_none() {
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continue;
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}
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let source = source.unwrap().location();
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let source_is_north = source.x < x;
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let source_is_east = source.y < y;
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let source_wire = ctx.source_wire(net);
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let port_ref = dereffed_port_refs.get(name);
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// I want to merge the "find best pip" code into a closure
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// but doing so gives lifetime errors, and you can't describe
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// lifetimes in a closure, as far as I can tell.
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let arcs = nets
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.users_by_name(*name)
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.unwrap()
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.par_iter()
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.flat_map(|sink| {
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ctx.sink_wires(net, (*sink) as *const PortRef)
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.into_par_iter()
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.map(move |sink_wire| (sink, sink_wire))
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})
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.flat_map(|(sink, sink_wire)| {
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let sink_loc = sink.cell().unwrap().location();
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let sink_is_north = sink_loc.x < x;
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let sink_is_east = sink_loc.y < y;
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if source_is_north == sink_is_north && source_is_east == sink_is_east {
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let arc = ((source.x, source.y), (sink_loc.x, sink_loc.y));
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let seg = match (source_is_north, source_is_east) {
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(true, true) => Segment::Northeast,
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(true, false) => Segment::Northwest,
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(false, true) => Segment::Southeast,
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(false, false) => Segment::Southwest,
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};
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vec![(seg, arc)]
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} else if source_is_north != sink_is_north && source_is_east == sink_is_east {
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let middle = (x, (source.y + sink_loc.y) / 2);
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let middle = (middle.0.clamp(1, ctx.grid_dim_x()-1), middle.1.clamp(1, ctx.grid_dim_y()-1));
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let pips = match source_is_north {
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true => pips_s.get(&middle).unwrap(),
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false => pips_n.get(&middle).unwrap(),
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};
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let (selected_pip, pip_uses) = pips
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.iter()
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.min_by_key(|(pip, uses)| {
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let src_to_pip =
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ctx.estimate_delay(source_wire, ctx.pip_src_wire(*pip));
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let pip_to_snk = ctx.estimate_delay(ctx.pip_dst_wire(*pip), sink_wire);
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let uses = uses.load(std::sync::atomic::Ordering::Acquire);
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(1000.0 * (src_to_pip + ((uses + 1) as f32) * pip_to_snk)) as u64
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})
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.unwrap();
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pip_uses.fetch_add(1, std::sync::atomic::Ordering::Release);
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let selected_pip = *selected_pip;
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explored_pips.fetch_add(pips.len(), std::sync::atomic::Ordering::SeqCst);
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let pip_loc = ctx.pip_location(selected_pip);
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let src_to_pip = ((source.x, source.y), (pip_loc.x, pip_loc.y));
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let pip_to_dst = ((pip_loc.x, pip_loc.y), (sink_loc.x, sink_loc.y));
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let (seg1, seg2) = match (source_is_north, source_is_east) {
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(true, true) => (Segment::Northeast, Segment::Southeast),
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(true, false) => (Segment::Northwest, Segment::Southwest),
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(false, true) => (Segment::Southeast, Segment::Northeast),
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(false, false) => (Segment::Southwest, Segment::Northwest),
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};
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part_horiz.fetch_add(1, std::sync::atomic::Ordering::SeqCst);
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vec![(seg1, src_to_pip), (seg2, pip_to_dst)]
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} else if source_is_north == sink_is_north && source_is_east != sink_is_east {
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let middle = ((source.x + sink_loc.x) / 2, y);
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let middle = (middle.0.clamp(1, ctx.grid_dim_x()-1), middle.1.clamp(1, ctx.grid_dim_y()-1));
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let pips = match source_is_east {
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true => pips_w.get(&middle).unwrap(),
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false => pips_e.get(&middle).unwrap_or_else(|| panic!("\nwhile partitioning an arc between ({}, {}) and ({}, {})\n({}, {}) does not exist in the pip library\n", source.x, source.y, sink_loc.x, sink_loc.y, middle.0, middle.1)),
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};
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let (selected_pip, pip_uses) = pips
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.iter()
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.min_by_key(|(pip, uses)| {
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let src_to_pip =
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ctx.estimate_delay(source_wire, ctx.pip_src_wire(*pip));
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let pip_to_snk = ctx.estimate_delay(ctx.pip_dst_wire(*pip), sink_wire);
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let uses = uses.load(std::sync::atomic::Ordering::Acquire);
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(1000.0 * (src_to_pip + ((uses + 1) as f32) * pip_to_snk)) as u64
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})
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.unwrap();
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pip_uses.fetch_add(1, std::sync::atomic::Ordering::Release);
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let selected_pip = *selected_pip;
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explored_pips.fetch_add(pips.len(), std::sync::atomic::Ordering::Relaxed);
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let pip_loc = ctx.pip_location(selected_pip);
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let src_to_pip = ((source.x, source.y), (pip_loc.x, pip_loc.y));
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let pip_to_dst = ((pip_loc.x, pip_loc.y), (sink_loc.x, sink_loc.y));
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let (seg1, seg2) = match (source_is_north, source_is_east) {
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(true, true) => (Segment::Northeast, Segment::Northwest),
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(true, false) => (Segment::Northwest, Segment::Northeast),
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(false, true) => (Segment::Southeast, Segment::Southwest),
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(false, false) => (Segment::Southwest, Segment::Southeast),
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};
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part_vert.fetch_add(1, std::sync::atomic::Ordering::Relaxed);
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vec![(seg1, src_to_pip), (seg2, pip_to_dst)]
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} else {
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let middle = (x, split_line_over_x((source, sink_loc), x));
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let middle = (middle.0.clamp(1, ctx.grid_dim_x()-1), middle.1.clamp(1, ctx.grid_dim_y()-1));
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let pips = match source_is_east {
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true => pips_w.get(&middle).unwrap(),
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false => pips_e.get(&middle).unwrap(),
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};
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let (horiz_pip, pip_uses) = pips
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.iter()
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.min_by_key(|(pip, uses)| {
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let src_to_pip =
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ctx.estimate_delay(source_wire, ctx.pip_src_wire(*pip));
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let pip_to_snk = ctx.estimate_delay(ctx.pip_dst_wire(*pip), sink_wire);
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let uses = uses.load(std::sync::atomic::Ordering::Acquire);
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(1000.0 * (src_to_pip + ((uses + 1) as f32) * pip_to_snk)) as u64
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})
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.unwrap();
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pip_uses.fetch_add(1, std::sync::atomic::Ordering::Release);
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let horiz_pip = *horiz_pip;
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explored_pips.fetch_add(pips.len(), std::sync::atomic::Ordering::Relaxed);
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let middle = (split_line_over_y((source, sink_loc), y), y);
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let middle = (middle.0.clamp(1, ctx.grid_dim_x()-1), middle.1.clamp(1, ctx.grid_dim_y()-1));
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let pips = match source_is_north {
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true => pips_s.get(&middle).unwrap(),
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false => pips_n.get(&middle).unwrap(),
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};
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let (vert_pip, pip_uses) = pips
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.iter()
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.min_by_key(|(pip, uses)| {
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let src_to_pip =
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ctx.estimate_delay(source_wire, ctx.pip_src_wire(*pip));
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let pip_to_snk = ctx.estimate_delay(ctx.pip_dst_wire(*pip), sink_wire);
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let uses = uses.load(std::sync::atomic::Ordering::Acquire);
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(1000.0 * (src_to_pip + ((uses + 1) as f32) * pip_to_snk)) as u64
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})
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.unwrap();
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pip_uses.fetch_add(1, std::sync::atomic::Ordering::Release);
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let vert_pip = *vert_pip;
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explored_pips.fetch_add(pips.len(), std::sync::atomic::Ordering::Relaxed);
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let horiz_loc = ctx.pip_location(horiz_pip);
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let horiz_is_east = horiz_loc.y < y;
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let vert_loc = ctx.pip_location(vert_pip);
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let (src_to_mid1, mid1_to_mid2, mid2_to_dst) =
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if horiz_is_east == source_is_east {
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(
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((source.x, source.y), (horiz_loc.x, horiz_loc.y)),
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((horiz_loc.x, horiz_loc.y), (vert_loc.x, vert_loc.y)),
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((vert_loc.x, vert_loc.y), (sink_loc.x, sink_loc.y)),
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)
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} else {
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(
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((source.x, source.y), (vert_loc.x, vert_loc.y)),
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((vert_loc.x, vert_loc.y), (horiz_loc.x, horiz_loc.y)),
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((horiz_loc.x, horiz_loc.y), (sink_loc.x, sink_loc.y)),
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)
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};
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let (seg1, seg2, seg3) = match (source_is_north, source_is_east, horiz_is_east)
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{
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(true, true, true) => {
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(Segment::Northeast, Segment::Southeast, Segment::Southwest)
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}
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(true, true, false) => {
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(Segment::Northeast, Segment::Northwest, Segment::Southwest)
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}
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(true, false, true) => {
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(Segment::Northwest, Segment::Northeast, Segment::Southeast)
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}
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(true, false, false) => {
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(Segment::Northwest, Segment::Southwest, Segment::Southeast)
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}
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(false, true, true) => {
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(Segment::Southeast, Segment::Northeast, Segment::Northwest)
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}
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(false, true, false) => {
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(Segment::Southeast, Segment::Southwest, Segment::Northwest)
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}
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(false, false, true) => {
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(Segment::Southwest, Segment::Southeast, Segment::Northeast)
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}
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(false, false, false) => {
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(Segment::Southwest, Segment::Northwest, Segment::Northeast)
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}
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};
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part_diag.fetch_add(1, std::sync::atomic::Ordering::SeqCst);
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vec![
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(seg1, src_to_mid1),
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(seg2, mid1_to_mid2),
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(seg3, mid2_to_dst),
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]
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}
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})
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.collect::<Vec<_>>();
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for (segment, arc) in arcs {
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match segment {
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Segment::Northeast => ne.push(arc),
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Segment::Southeast => se.push(arc),
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Segment::Southwest => sw.push(arc),
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Segment::Northwest => nw.push(arc),
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if port_ref.is_none() {
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println!(
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"{} suddenly become none",
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ctx.name_of(*name).to_str().unwrap()
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);
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}
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port_ref
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.expect("it's this one!")
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.into_par_iter()
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.flat_map(|sink| {
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ctx.sink_wires(net, *sink)
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.into_par_iter()
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.map(move |sink_wire| (sink, sink_wire))
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})
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.map(|(sink, sink_wire)| {
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(
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sink,
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sink_wire,
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&pips_n,
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&pips_s,
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&pips_e,
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&pips_w,
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&explored_pips,
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&part_horiz,
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&part_vert,
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&part_diag,
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)
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})
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.flat_map(
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move |(
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sink,
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sink_wire,
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pips_n,
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pips_s,
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pips_e,
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pips_w,
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explored_pips,
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part_horiz,
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part_vert,
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part_diag,
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)| {
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let sink_loc = sink.cell().unwrap().location();
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let sink_is_north = sink_loc.x < x;
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let sink_is_east = sink_loc.y < y;
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if source_is_north == sink_is_north && source_is_east == sink_is_east {
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let arc = ((source.x, source.y), (sink_loc.x, sink_loc.y));
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let seg = match (source_is_north, source_is_east) {
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(true, true) => Segment::Northeast,
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(true, false) => Segment::Northwest,
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(false, true) => Segment::Southeast,
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(false, false) => Segment::Southwest,
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};
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vec![(seg, arc)]
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} else if source_is_north != sink_is_north && source_is_east == sink_is_east
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{
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let middle = (x, (source.y + sink_loc.y) / 2);
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let middle = (
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middle.0.clamp(1, ctx.grid_dim_x() - 1),
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middle.1.clamp(1, ctx.grid_dim_y() - 1),
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);
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let pips = match source_is_north {
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true => pips_s.get(&middle).unwrap(),
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false => pips_n.get(&middle).unwrap(),
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};
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let (selected_pip, pip_uses) = pips
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.iter()
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.min_by_key(|(pip, uses)| {
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let src_to_pip =
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ctx.estimate_delay(source_wire, ctx.pip_src_wire(*pip));
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let pip_to_snk =
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ctx.estimate_delay(ctx.pip_dst_wire(*pip), sink_wire);
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let uses = uses.load(std::sync::atomic::Ordering::Acquire);
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(1000.0 * (src_to_pip + ((uses + 1) as f32) * pip_to_snk))
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as u64
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})
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.unwrap();
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pip_uses.fetch_add(1, std::sync::atomic::Ordering::Release);
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let selected_pip = *selected_pip;
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explored_pips
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.fetch_add(pips.len(), std::sync::atomic::Ordering::Relaxed);
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let pip_loc = ctx.pip_location(selected_pip);
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let src_to_pip = ((source.x, source.y), (pip_loc.x, pip_loc.y));
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let pip_to_dst = ((pip_loc.x, pip_loc.y), (sink_loc.x, sink_loc.y));
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let (seg1, seg2) = match (source_is_north, source_is_east) {
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(true, true) => (Segment::Northeast, Segment::Southeast),
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(true, false) => (Segment::Northwest, Segment::Southwest),
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(false, true) => (Segment::Southeast, Segment::Northeast),
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(false, false) => (Segment::Southwest, Segment::Northwest),
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};
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part_horiz.fetch_add(1, std::sync::atomic::Ordering::Relaxed);
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vec![(seg1, src_to_pip), (seg2, pip_to_dst)]
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} else if source_is_north == sink_is_north && source_is_east != sink_is_east
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{
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let middle = ((source.x + sink_loc.x) / 2, y);
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let middle = (
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middle.0.clamp(1, ctx.grid_dim_x() - 1),
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middle.1.clamp(1, ctx.grid_dim_y() - 1),
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);
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let pips = match source_is_east {
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true => pips_w.get(&middle).unwrap(),
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false => pips_e.get(&middle).unwrap(),
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};
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let (selected_pip, pip_uses) = pips
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.iter()
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.min_by_key(|(pip, uses)| {
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let src_to_pip =
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ctx.estimate_delay(source_wire, ctx.pip_src_wire(*pip));
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let pip_to_snk =
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ctx.estimate_delay(ctx.pip_dst_wire(*pip), sink_wire);
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let uses = uses.load(std::sync::atomic::Ordering::Acquire);
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(1000.0 * (src_to_pip + ((uses + 1) as f32) * pip_to_snk))
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as u64
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})
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.unwrap();
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pip_uses.fetch_add(1, std::sync::atomic::Ordering::Release);
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let selected_pip = *selected_pip;
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explored_pips
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.fetch_add(pips.len(), std::sync::atomic::Ordering::Relaxed);
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let pip_loc = ctx.pip_location(selected_pip);
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let src_to_pip = ((source.x, source.y), (pip_loc.x, pip_loc.y));
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let pip_to_dst = ((pip_loc.x, pip_loc.y), (sink_loc.x, sink_loc.y));
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let (seg1, seg2) = match (source_is_north, source_is_east) {
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(true, true) => (Segment::Northeast, Segment::Northwest),
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(true, false) => (Segment::Northwest, Segment::Northeast),
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(false, true) => (Segment::Southeast, Segment::Southwest),
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(false, false) => (Segment::Southwest, Segment::Southeast),
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};
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part_vert.fetch_add(1, std::sync::atomic::Ordering::Relaxed);
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vec![(seg1, src_to_pip), (seg2, pip_to_dst)]
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} else {
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let middle = (x, split_line_over_x((source, sink_loc), x));
|
||||
let middle = (
|
||||
middle.0.clamp(1, ctx.grid_dim_x() - 1),
|
||||
middle.1.clamp(1, ctx.grid_dim_y() - 1),
|
||||
);
|
||||
let pips = match source_is_east {
|
||||
true => pips_w.get(&middle).unwrap(),
|
||||
false => pips_e.get(&middle).unwrap(),
|
||||
};
|
||||
|
||||
let (horiz_pip, pip_uses) = pips
|
||||
.iter()
|
||||
.min_by_key(|(pip, uses)| {
|
||||
let src_to_pip =
|
||||
ctx.estimate_delay(source_wire, ctx.pip_src_wire(*pip));
|
||||
let pip_to_snk =
|
||||
ctx.estimate_delay(ctx.pip_dst_wire(*pip), sink_wire);
|
||||
let uses = uses.load(std::sync::atomic::Ordering::Acquire);
|
||||
(1000.0 * (src_to_pip + ((uses + 1) as f32) * pip_to_snk))
|
||||
as u64
|
||||
})
|
||||
.unwrap();
|
||||
pip_uses.fetch_add(1, std::sync::atomic::Ordering::Release);
|
||||
let horiz_pip = *horiz_pip;
|
||||
explored_pips
|
||||
.fetch_add(pips.len(), std::sync::atomic::Ordering::Relaxed);
|
||||
|
||||
let middle = (split_line_over_y((source, sink_loc), y), y);
|
||||
let middle = (
|
||||
middle.0.clamp(1, ctx.grid_dim_x() - 1),
|
||||
middle.1.clamp(1, ctx.grid_dim_y() - 1),
|
||||
);
|
||||
let pips = match source_is_north {
|
||||
true => pips_s.get(&middle).unwrap(),
|
||||
false => pips_n.get(&middle).unwrap(),
|
||||
};
|
||||
|
||||
let (vert_pip, pip_uses) = pips
|
||||
.iter()
|
||||
.min_by_key(|(pip, uses)| {
|
||||
let src_to_pip =
|
||||
ctx.estimate_delay(source_wire, ctx.pip_src_wire(*pip));
|
||||
let pip_to_snk =
|
||||
ctx.estimate_delay(ctx.pip_dst_wire(*pip), sink_wire);
|
||||
let uses = uses.load(std::sync::atomic::Ordering::Acquire);
|
||||
(1000.0 * (src_to_pip + ((uses + 1) as f32) * pip_to_snk))
|
||||
as u64
|
||||
})
|
||||
.unwrap();
|
||||
pip_uses.fetch_add(1, std::sync::atomic::Ordering::Release);
|
||||
let vert_pip = *vert_pip;
|
||||
explored_pips
|
||||
.fetch_add(pips.len(), std::sync::atomic::Ordering::Relaxed);
|
||||
|
||||
let horiz_loc = ctx.pip_location(horiz_pip);
|
||||
let horiz_is_east = horiz_loc.y < y;
|
||||
let vert_loc = ctx.pip_location(vert_pip);
|
||||
let (src_to_mid1, mid1_to_mid2, mid2_to_dst) =
|
||||
if horiz_is_east == source_is_east {
|
||||
(
|
||||
((source.x, source.y), (horiz_loc.x, horiz_loc.y)),
|
||||
((horiz_loc.x, horiz_loc.y), (vert_loc.x, vert_loc.y)),
|
||||
((vert_loc.x, vert_loc.y), (sink_loc.x, sink_loc.y)),
|
||||
)
|
||||
} else {
|
||||
(
|
||||
((source.x, source.y), (vert_loc.x, vert_loc.y)),
|
||||
((vert_loc.x, vert_loc.y), (horiz_loc.x, horiz_loc.y)),
|
||||
((horiz_loc.x, horiz_loc.y), (sink_loc.x, sink_loc.y)),
|
||||
)
|
||||
};
|
||||
let (seg1, seg2, seg3) =
|
||||
match (source_is_north, source_is_east, horiz_is_east) {
|
||||
(true, true, true) => {
|
||||
(Segment::Northeast, Segment::Southeast, Segment::Southwest)
|
||||
}
|
||||
(true, true, false) => {
|
||||
(Segment::Northeast, Segment::Northwest, Segment::Southwest)
|
||||
}
|
||||
(true, false, true) => {
|
||||
(Segment::Northwest, Segment::Northeast, Segment::Southeast)
|
||||
}
|
||||
(true, false, false) => {
|
||||
(Segment::Northwest, Segment::Southwest, Segment::Southeast)
|
||||
}
|
||||
(false, true, true) => {
|
||||
(Segment::Southeast, Segment::Northeast, Segment::Northwest)
|
||||
}
|
||||
(false, true, false) => {
|
||||
(Segment::Southeast, Segment::Southwest, Segment::Northwest)
|
||||
}
|
||||
(false, false, true) => {
|
||||
(Segment::Southwest, Segment::Southeast, Segment::Northeast)
|
||||
}
|
||||
(false, false, false) => {
|
||||
(Segment::Southwest, Segment::Northwest, Segment::Northeast)
|
||||
}
|
||||
};
|
||||
part_diag.fetch_add(1, std::sync::atomic::Ordering::Relaxed);
|
||||
vec![
|
||||
(seg1, src_to_mid1),
|
||||
(seg2, mid1_to_mid2),
|
||||
(seg3, mid2_to_dst),
|
||||
]
|
||||
}
|
||||
},
|
||||
)
|
||||
})
|
||||
.collect::<Vec<_>>();
|
||||
|
||||
for (segment, arc) in arcs {
|
||||
match segment {
|
||||
Segment::Northeast => ne.push(arc),
|
||||
Segment::Southeast => se.push(arc),
|
||||
Segment::Southwest => sw.push(arc),
|
||||
Segment::Northwest => nw.push(arc),
|
||||
}
|
||||
}
|
||||
|
||||
@ -685,7 +738,10 @@ fn route(ctx: &mut npnr::Context) -> bool {
|
||||
coords_max.bold()
|
||||
);
|
||||
|
||||
log_info!("rayon reports {} threads available\n", rayon::current_num_threads().to_string().bold());
|
||||
log_info!(
|
||||
"rayon reports {} threads available\n",
|
||||
rayon::current_num_threads().to_string().bold()
|
||||
);
|
||||
|
||||
let (x_part, y_part, ne, se, sw, nw) =
|
||||
find_partition_point(ctx, &nets, pips, 0, ctx.grid_dim_x(), 0, ctx.grid_dim_y());
|
||||
|
||||
@ -347,7 +347,8 @@ impl<'a> Nets<'a> {
|
||||
// Leaking memory is the most convenient FFI I could think of.
|
||||
let len =
|
||||
unsafe { npnr_netinfo_users_leak(net, &mut users_ptr as *mut *mut *mut PortRef) };
|
||||
let users_slice = unsafe { slice::from_raw_parts(users_ptr as *mut &mut PortRef, len as usize) };
|
||||
let users_slice =
|
||||
unsafe { slice::from_raw_parts(users_ptr as *mut &mut PortRef, len as usize) };
|
||||
nets.insert(name, net);
|
||||
users.insert(name, users_slice);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user