private static void ShrinkGraph()
{
Console.WriteLine("Building");
var graph = BuildGraph(DictionaryPath);
Console.WriteLine("Converting");
var nodes = ConvertToNewNodes(graph);
Console.WriteLine("Converted");
var round = 0;
for (var coarse = 1; coarse < 10; coarse++)
{
int lastCost;
var newCost = nodes.Count(x => !x.Removed);
Console.WriteLine($"Coarsen: {coarse}");
do
{
var edgeCount = nodes.Sum(x => x.Children.Count);
Console.WriteLine($"Round: {round:D5} Count: {newCost:D6} Edges: {edgeCount:D6}");
round++;
UpDog(nodes, coarse);
lastCost = newCost;
newCost = nodes.Count(x => !x.Removed);
} while (newCost != lastCost);
}
NewNode.WriteD3JsonFormat(nodes, @"C:\Users\JPelleri\source\repos\portent\portent.Benchmark\graph2.json");
}
private static NewNode[] ConvertToNewNodes(CompressedSparseRowGraph graph)
{
var nodes = new NewNode[graph.FirstChildEdgeIndex.Length - 1];
for (var i = 0; i < nodes.Length; i++)
{
nodes[i] = new NewNode(i);
}
for (var i = 1; i <= nodes.Length; i++)
{
var first = graph.FirstChildEdgeIndex[i - 1];
var last = graph.FirstChildEdgeIndex[i];
var parent = nodes[i - 1];
for (var j = first; j < last; j++)
{
var index = graph.EdgeToNodeIndex[j];
var child = nodes[Math.Abs(index)];
/*if (index < 0)
* {
* child.Terminal = true;
* }*/
parent.Children.Add(child);
child.Parents.Add(parent);
}
}
return(nodes);
}
public void MergeChild(NewNode child)
{
Children.Remove(child);
foreach (var grandchild in child.Children)
{
grandchild.Parents.Remove(child);
if (Children.Add(grandchild))
{
grandchild.Parents.Add(this);
}
}
child.Parents.Remove(this);
if (child.Parents.Count == 0)
{
child.Removed = true;
child.Children.Clear();
}
}
