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source/MAIN.cpp

@@ -6,8 +6,14 @@
 #include "ABC.h"
 #include "Circuit.h"
 #include <dirent.h>
+#include <queue>
+#include <assert.h>
 #include <string>
 #include <vector>
+#include <algorithm>
+
+#define inf (1e20)
+
 using namespace std;
 
 void get_file_name(string path, vector<string> &files) {
@@ -16,22 +22,137 @@ void get_file_name(string path, vector<string> &files) {
     while ((ptr = readdir(dir)) != NULL) {
         if (ptr->d_name[0] != '.') {  // skip . and ..
             files.push_back(ptr->d_name);
+	    cout << ptr->d_name << endl;
         }
     }
     closedir(dir);
 }
 
+void Output(Circuit c) {
+     queue <string> Q;
+     int area = 0;
+     for (string s : c.output)
+	Q.push(s);
+     while (!Q.empty()) {
+	string now = Q.front();
+	Q.pop();
+	if (c.graph[now]->pre.size() == 0) continue;
+	cout << "input:\n";
+	for (string st : c.graph[now]->Rcut) {
+            cout << st << " ";
+	    Q.push(st);
+        }
+	cout << "\noutput:\n" << now << endl;
+     }
+}
+
 int main(int argc, char *argv[]) {
     vector<string> benchmark;
+    queue <string> Q;
+    map<string, int> ind;
+    int Luts = 4;
     string dir = "benchmark/IWLS93";
     get_file_name(dir, benchmark);
 
-    for (string s : benchmark) {
+    for (string str : benchmark) {
         double total_time;
         clock_t start = clock();
 
-        Circuit circuit(dir + "/" + s);  // already synthesized
+        Circuit c = Circuit(dir + "/" + str);  // already synthesized
+	//c.write_dot();
 
+	for (pair<string, Var*> p : c.graph) 
+	    ind[p.first] = p.second->pre.size();
+
+	for (string s : c.input) {           // Initial queue
+            c.graph[s]->cuts.insert(set<string>{s});
+	    c.graph[s]->mindep = 0;
+	    c.graph[s]->Area = 0;
+	    c.graph[s]->AreaFlow = 0;
+	    for (string nt : c.graph[s]->suc) {
+		ind[nt]--;
+		if (ind[nt] == 0) Q.push(nt);
+	    }
+	}
+
+	//Enumerate Cuts
+	while (!Q.empty()) {
+	    string now = Q.front();
+	    //cout << now << endl;
+	    Q.pop();
+	    c.graph[now]->cuts.insert(set<string>{now});
+	    assert(c.graph[now]->pre.size() <= 2);
+	    if (c.graph[now]->pre.size() == 2) {
+	        string input1 = c.graph[now]->pre[0];
+	        string input2 = c.graph[now]->pre[1];
+
+	        for (set<string> c1 : c.graph[input1]->cuts) {
+		    for (set<string> c2: c.graph[input2]->cuts) {
+		        set<string> st = c1;
+		        st.insert(c2.begin(), c2.end());
+		        if (st.size() > (unsigned)Luts) continue;
+		        c.graph[now]->cuts.insert(st);
+		    }
+	        }
+	    }
+
+	    if (c.graph[now]->pre.size() == 1) {
+                string input1 = c.graph[now]->pre[0];
+                for (set<string> c1 : c.graph[input1]->cuts)
+                    c.graph[now]->cuts.insert(c1);
+            }
+
+            for (string nt : c.graph[now]->suc) {
+                ind[nt]--;
+                if (ind[nt] == 0) Q.push(nt);
+            }
+
+	    /*Calculate dep, areaflow, exact area*/	
+	    c.graph[now]->mindep = INF;
+	    c.graph[now]->Area = INF;
+            c.graph[now]->AreaFlow = inf;
+	    for (set<string> ct : c.graph[now]->cuts) {
+		int dep = 0, area = 0;
+		double AF = 0;
+		for (string nt : ct) {
+		    dep = max(dep, c.graph[nt]->mindep);
+		    area += c.graph[nt]->Area;
+		    AF += c.graph[nt]->AreaFlow;
+		}
+		dep++, area++;
+		AF /= max(1.0, 1.0 * c.graph[now]->suc.size());
+
+		/*Compare dep*/
+		if (dep < c.graph[now]->mindep) {
+		    c.graph[now]->mindep = dep;
+		    c.graph[now]->AreaFlow = AF;
+		    c.graph[now]->Area = area;
+		    c.graph[now]->Rcut = ct;
+		    continue;
+                }
+
+		/*Compare Area Flow*/
+		if (dep == c.graph[now]->mindep && AF < c.graph[now]->AreaFlow) {
+		    c.graph[now]->mindep = dep;
+                    c.graph[now]->AreaFlow = AF;
+                    c.graph[now]->Area = area;
+                    c.graph[now]->Rcut = ct;
+                    continue;
+                }
+
+		/*Compare Area*/
+                if (dep == c.graph[now]->mindep && AF == c.graph[now]->AreaFlow && area < c.graph[now]->Area) {
+                    c.graph[now]->mindep = dep;
+                    c.graph[now]->AreaFlow = AF;
+                    c.graph[now]->Area = area;
+                    c.graph[now]->Rcut = ct;
+                    continue;
+                }
+
+	    }
+
+        }
+	Output(c);
         clock_t finish = clock();
         total_time = (double) (finish - start) / CLOCKS_PER_SEC;
         cout << "Run time: " << total_time << "s" << endl;