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static: Exclude dark nodes from steplength

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Signed-off-by: gatecat <gatecat@ds0.me>
This commit is contained in:
gatecat 2024-05-03 09:36:09 +02:00
parent f085950383
commit 7a00e76cb1
1 changed files with 9 additions and 3 deletions
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12
common/place/placer_static.cc
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@ -917,16 +917,20 @@ class StaticPlacer
{
float coord_dist = 0;
float grad_dist = 0;
int n = 0;
for (auto &cell : mcells) {
if (cell.is_fixed || cell.is_dark)
continue;
coord_dist += (cell.ref_pos.x - cell.last_ref_pos.x) * (cell.ref_pos.x - cell.last_ref_pos.x);
coord_dist += (cell.ref_pos.y - cell.last_ref_pos.y) * (cell.ref_pos.y - cell.last_ref_pos.y);
grad_dist +=
(cell.ref_total_grad.x - cell.last_total_grad.x) * (cell.ref_total_grad.x - cell.last_total_grad.x);
grad_dist +=
(cell.ref_total_grad.y - cell.last_total_grad.y) * (cell.ref_total_grad.y - cell.last_total_grad.y);
n++;
}
coord_dist = std::sqrt(coord_dist / (2 * float(mcells.size())));
grad_dist = std::sqrt(grad_dist / (2 * float(mcells.size())));
coord_dist = std::sqrt(coord_dist / (2 * float(n)));
grad_dist = std::sqrt(grad_dist / (2 * float(n)));
log_info("coord_dist: %f grad_dist: %f\n", coord_dist, grad_dist);
return coord_dist / grad_dist;
// return 0.1;
@ -969,7 +973,7 @@ class StaticPlacer
update_gradients(true, true, /* init_penalty */ true);
// compute a "fake" previous position based on an arbitrary steplength and said gradients for nesterov
for (auto &cell : mcells) {
if (cell.is_fixed)
if (cell.is_fixed || cell.is_dark)
continue;
// save current position in last_pos
cell.last_pos = cell.pos;
@ -981,6 +985,8 @@ class StaticPlacer
update_gradients(true);
// Now we have the fake previous state in the current state
for (auto &cell : mcells) {
if (cell.is_fixed || cell.is_dark)
continue;
std::swap(cell.last_ref_pos, cell.ref_pos);
std::swap(cell.ref_total_grad, cell.last_total_grad);
std::swap(cell.ref_wl_grad, cell.last_wl_grad);