From 7744586e79da28bf07733515fc0ce278c3337c92 Mon Sep 17 00:00:00 2001
From: eugenefischer <66030419+eugenefischer@users.noreply.github.com>
Date: Thu, 10 Apr 2025 20:07:34 -0500
Subject: [PATCH] change frequency of garbage collection requests

---
 src/main/java/Simulator.java | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/main/java/Simulator.java b/src/main/java/Simulator.java
index 7d1e509..2f659bb 100644
--- a/src/main/java/Simulator.java
+++ b/src/main/java/Simulator.java
@@ -1,3 +1,4 @@
+import org.jgrapht.Graphs;
 import org.jgrapht.alg.interfaces.MatchingAlgorithm;
 import org.jgrapht.alg.matching.MaximumWeightBipartiteMatching;
 import org.jgrapht.graph.DefaultWeightedEdge;
@@ -147,15 +148,22 @@ public class Simulator implements GraphModificationFunctions {
             vertexLabelValue++;
         }
         betaVertices.forEach(graph::addVertex);
-        //add edges
+        //add edges (best so far)
+        int edgesAddedCount = 0;
         for(Vertex a: alphaVertices) {
+            Set<Integer> a_wells = a.getRecord().getWells();
             for(Vertex b: betaVertices) {
-                Set<Integer> sharedWells = new HashSet<>(a.getRecord().getWells());
+                Set<Integer> sharedWells = new HashSet<>(a_wells);
                 sharedWells.retainAll(b.getRecord().getWells());
-                double weight = (double) sharedWells.size();
-                if (weight != 0.0) {
-                    DefaultWeightedEdge edge = graph.addEdge(a, b);
-                    graph.setEdgeWeight(edge, weight);
+                if (!sharedWells.isEmpty()) {
+                    Graphs.addEdge(graph, a, b, (double) sharedWells.size());
+                }
+                edgesAddedCount++;
+                if (edgesAddedCount % 10000000 == 0) { //collect garbage every 10,000,000 edges
+                    System.out.println(edgesAddedCount + " edges added");
+                    //request garbage collection
+                    System.gc();
+                    System.out.println("Garbage collection requested");
                 }
             }
         }