remove distance factor when computing congestion cost for each net

soheilshahrouz · soheilshahrouz · commit 3d8941737cf8 · 2025-05-23T18:46:37.000-04:00
diff --git a/vpr/src/place/net_cost_handler.cpp b/vpr/src/place/net_cost_handler.cpp
@@ -1435,7 +1435,8 @@ double NetCostHandler::get_net_cube_cong_cost_(ClusterNetId net_id, bool use_ts)
     float x_chan_cong = (x_chan_util < threshold) ? 0.0f : x_chan_util - threshold;
     float y_chan_cong = (y_chan_util < threshold) ? 0.0f : y_chan_util - threshold;
 
-    return (distance_x * x_chan_cong) + (distance_y * y_chan_cong);
+//    return (distance_x * x_chan_cong) + (distance_y * y_chan_cong);
+    return  x_chan_cong + y_chan_cong;
 }
 
 double NetCostHandler::get_net_per_layer_bb_cost_(ClusterNetId net_id, bool use_ts) {

Original file line number	Diff line number	Diff line change
`@@ -1435,7 +1435,8 @@ double NetCostHandler::get_net_cube_cong_cost_(ClusterNetId net_id, bool use_ts)`
`1435`	`1435`	`float x_chan_cong = (x_chan_util < threshold) ? 0.0f : x_chan_util - threshold;`
`1436`	`1436`	`float y_chan_cong = (y_chan_util < threshold) ? 0.0f : y_chan_util - threshold;`
`1437`	`1437`
`1438`		`- return (distance_x * x_chan_cong) + (distance_y * y_chan_cong);`
	`1438`	`+// return (distance_x * x_chan_cong) + (distance_y * y_chan_cong);`
	`1439`	`+ return x_chan_cong + y_chan_cong;`
`1439`	`1440`	`}`
`1440`	`1441`
`1441`	`1442`	`double NetCostHandler::get_net_per_layer_bb_cost_(ClusterNetId net_id, bool use_ts) {`