diff --git a/vlsisapd/openChams/Circuit.cpp b/vlsisapd/openChams/Circuit.cpp
index c7d1b807..6c8b7b6c 100644
--- a/vlsisapd/openChams/Circuit.cpp
+++ b/vlsisapd/openChams/Circuit.cpp
@@ -45,6 +45,19 @@ Circuit::Circuit(Name name, Name techno) : _name(name), _techno(techno), _netlis
     readSizingDone            = false;
 }
 
+// COMPARISON FUNCTION //
+bool ConnectionsSort(const pair<Name, Name>& p1, const pair<Name, Name>& p2) {
+    return p1.first < p2.first;
+}
+
+bool InstanceNameSort(const Instance* i1, const Instance* i2) {
+    return i1->getName() < i2->getName();
+}
+
+bool NetNameSort(const Net* n1, const Net* n2) {
+    return n1->getName() < n2->getName();
+}
+
 // USEFUL //
 void Circuit::check_uppercase(string& str, vector<string>& compares, string message) {
     transform(str.begin(), str.end(), str.begin(), ::toupper);
@@ -640,7 +653,9 @@ bool Circuit::writeToFile(string filePath) {
     }
     file << "  <netlist>" << endl
          << "    <instances>" << endl;
-    for (vector<Instance*>::const_iterator it = _netlist->getInstances().begin() ; it != _netlist->getInstances().end() ; ++it) {
+    vector<Instance*> instances = _netlist->getInstances();
+    sort(instances.begin(), instances.end(), InstanceNameSort); // sort based on instances' names
+    for (vector<Instance*>::iterator it = instances.begin() ; it != instances.end() ; ++it) {
         Instance* inst = (*it);
         if (inst->hasNoConnectors()) {
             string error("[ERROR] Cannot writeToFile since instance (");
@@ -682,7 +697,9 @@ bool Circuit::writeToFile(string filePath) {
     }
     file << "    </instances>" << endl
          << "    <nets>" << endl;
-    for (vector<Net*>::const_iterator it = _netlist->getNets().begin() ; it != _netlist->getNets().end() ; ++it) {
+    vector<Net*> nets = _netlist->getNets();
+    sort(nets.begin(), nets.end(), NetNameSort); // sort based on nets' names
+    for (vector<Net*>::iterator it = nets.begin() ; it != nets.end() ; ++it) {
         Net* net = (*it);
         if (net->hasNoConnectors()) {
             string error("[ERROR] Cannot writeToFile since net (");
@@ -693,7 +710,9 @@ bool Circuit::writeToFile(string filePath) {
         }
         string externStr = (net->isExternal()) ? "True" : "False";
         file << "      <net name=\"" << net->getName().getString() << "\" type=\"" << net->getType().getString() << "\" isExternal=\"" << externStr << "\">" << endl;
-        for (vector<pair<Name, Name> >::const_iterator it = net->getConnections().begin() ; it != net->getConnections().end() ; ++it) {
+        vector<pair<Name, Name> > connections = net->getConnections();
+        sort(connections.begin(), connections.end(), ConnectionsSort);
+        for (vector<pair<Name, Name> >::iterator it = connections.begin() ; it != connections.end() ; ++it) {
             file << "        <connector instance=\"" << (*it).first.getString() << "\" name=\"" << (*it).second.getString() << "\"/>" << endl;
         }
 		file << "      </net>" << endl;
diff --git a/vlsisapd/openChams/Circuit.h b/vlsisapd/openChams/Circuit.h
index bcf6a5ef..5d7b1657 100644
--- a/vlsisapd/openChams/Circuit.h
+++ b/vlsisapd/openChams/Circuit.h
@@ -35,6 +35,7 @@ class Circuit {
     inline double     getValue(Name);
     inline Netlist*   getNetlist();
     inline Schematic* getSchematic();
+    inline Sizing*    getSizing();
     inline void       addParameter(Name, double);
     inline void       addParameter(Name, std::string);
     inline Parameters getParameters();
@@ -86,6 +87,7 @@ inline Name       Circuit::getTechno()         { return _techno; };
 inline double     Circuit::getValue(Name name) { return _params.getValue(name); };
 inline Netlist*   Circuit::getNetlist()        { return _netlist; };
 inline Schematic* Circuit::getSchematic()      { return _schematic; };
+inline Sizing*    Circuit::getSizing()         { return _sizing; };
 inline void       Circuit::addParameter(Name name, double value) { _params.addParameter(name, value); };
 inline void       Circuit::addParameter(Name name, std::string eqStr) { _params.addParameter(name, eqStr); };
 inline Parameters Circuit::getParameters()     { return _params; };
diff --git a/vlsisapd/openChams/Instance.h b/vlsisapd/openChams/Instance.h
index cc256822..b032f151 100644
--- a/vlsisapd/openChams/Instance.h
+++ b/vlsisapd/openChams/Instance.h
@@ -32,7 +32,7 @@ class Instance {
     inline void addParameter(Name, double);
     inline void addParameter(Name, std::string);
     inline void addTransistor(Transistor*);
-    inline Name getName();
+    inline Name getName() const;
     inline Name getModel();
     inline Name getMosType();
     inline bool isSourceBulkConnected();
@@ -43,7 +43,7 @@ class Instance {
     // pour parcourir les transistors
     inline bool hasNoTransistors();
     inline const std::vector<Transistor*>& getTransistors();
-        
+
 	private:
 	Name 	   		_name;
     Name 	   		_model;
@@ -58,7 +58,7 @@ class Instance {
 inline void Instance::addParameter(Name name, double value) { _params.addParameter(name, value); };
 inline void Instance::addParameter(Name name, std::string eqStr) { _params.addParameter(name, eqStr); };
 inline void Instance::addTransistor(Transistor* tr) { _trans.push_back(tr); };
-inline Name Instance::getName() { return _name; };
+inline Name Instance::getName() const { return _name; };
 inline Name Instance::getModel() { return _model; };
 inline Name Instance::getMosType() { return _mosType; };
 inline bool Instance::isSourceBulkConnected() { return _sourceBulkConnected; };
diff --git a/vlsisapd/openChams/Name.cpp b/vlsisapd/openChams/Name.cpp
index dcd973a8..a9aca241 100644
--- a/vlsisapd/openChams/Name.cpp
+++ b/vlsisapd/openChams/Name.cpp
@@ -48,8 +48,9 @@ bool Name::operator==(const string& str) {
     Name n(str);
     return (_id == n._id);
 }
-bool Name::operator<(const Name n) const {
-    return (_id < n._id);
+bool Name::operator<(const Name& n) const {
+    //return (_id < n._id); // does not assert determinism in driving since hurricane do not care about name's ID --> need an alphabetical check on string
+    return (*_str < n.getString());
 }
 } // namespace
 
diff --git a/vlsisapd/openChams/Name.h b/vlsisapd/openChams/Name.h
index bad4d10d..c382bb44 100644
--- a/vlsisapd/openChams/Name.h
+++ b/vlsisapd/openChams/Name.h
@@ -23,7 +23,7 @@ class Name {
     
 	bool operator==(const Name&);
 	bool operator==(const std::string&);
-	bool operator<(const Name) const;
+	bool operator<(const Name&) const;
     
 	inline const std::string& getString() const;
         
@@ -32,7 +32,7 @@ class Name {
 	const std::string *_str;
     
 	static std::map<std::string, unsigned long> _dict;
-	static unsigned long              _globalId;
+	static unsigned long _globalId;
 };
     
 inline const std::string& Name::getString() const{
diff --git a/vlsisapd/openChams/Net.h b/vlsisapd/openChams/Net.h
index e3252752..50b3d53a 100644
--- a/vlsisapd/openChams/Net.h
+++ b/vlsisapd/openChams/Net.h
@@ -23,7 +23,7 @@ class Net {
         
     void connectTo(Name instanceName, Name connectorName);
     
-    inline Name     getName();
+    inline Name     getName() const;
     inline Name     getType();
     inline bool     isExternal();
     inline Netlist* getNetlist();
@@ -31,7 +31,7 @@ class Net {
     //inline vector<pair<Name, Name> >::iterator getFirstConnectionIt();
     //inline vector<pair<Name, Name> >::iterator getLastConnectionIt();
     inline const std::vector<std::pair<Name, Name> >& getConnections();
-        
+
     private:
     Name     _name;
     Name     _typeName;
@@ -40,7 +40,7 @@ class Net {
     std::vector<std::pair<Name, Name> > _connections; // <instanceName, connectorName>
 };
     
-inline Name Net::getName() { return _name; };
+inline Name Net::getName() const { return _name; };
 inline Name Net::getType() { return _typeName; };
 inline bool Net::isExternal() { return _isExternal; };
 inline Netlist* Net::getNetlist() { return _netlist; };
diff --git a/vlsisapd/openChams/Sizing.h b/vlsisapd/openChams/Sizing.h
index 47d1f7b7..665e56f8 100644
--- a/vlsisapd/openChams/Sizing.h
+++ b/vlsisapd/openChams/Sizing.h
@@ -3,7 +3,7 @@
  *  openChams
  *
  *  Created by damien dupuis on 08/02/10.
- *  Copyright 2010 UPMC / LIP6. All rights reserved.
+ *  Copyright 2008-2010 UPMC / LIP6. All rights reserved.
  *
  */
 
@@ -31,8 +31,8 @@ namespace OpenChams {
         
     private:
         Circuit* _circuit;
-        std::map<Name, Operator*>   _operators; //instanceName <-> operator
-        std::map<Name, std::string> _equations; //equationName <-> equation (string)
+        std::map<Name, Operator*>   _operators; // instanceName <-> operator
+        std::map<Name, std::string> _equations; // equationName <-> equation (string)
     };
     
     inline bool   Sizing::hasNoOperators() { return (_operators.size() == 0) ? true : false; };