The processor file should denote it's slave number

SlaveProcessor_1.mxml

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
			   xmlns:s="library://ns.adobe.com/flex/spark" 
			   xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"
			   addedToStage="init()" width="1" height="1">
	<fx:Script>
		<![CDATA[
			private var sendConn:LocalConnection;
			private var receiveConn:LocalConnection;
			private var myCount:int;
			private var channelName:String;
			private const CHANNEL:String = 'channel';
			private const COMMONHANDLER:String = "lcHandler";
			
			private function init():void {
				sendConn = new LocalConnection();
				receiveConn = new LocalConnection();
				receiveConn.allowDomain('*');
				receiveConn.allowInsecureDomain('*');
				receiveConn.client = this;
				var myUrl:String = stage.loaderInfo.url;
				var tmp:Array=myUrl.split("/");
				var myName:String=tmp[tmp.length-1].split(".swf")[0];
				myCount = myName.split("_")[1];
				try {
					receiveConn.connect(CHANNEL+myCount);
				} catch (error:ArgumentError) { 
				}
			}
			
			public function lcHandler(msg:Object):void {
				var frontCount:int =(myCount+1);
				var backCount:int =(myCount-1);
				if(msg.isProcessed){
					//processed from successor processor
					channelName= CHANNEL+backCount.toString();
					sendMessage(channelName,msg);
				}else if(msg.destination == myCount){
					//processed by same processor
					channelName= CHANNEL+backCount.toString();
					processMessage(msg);
				}else{
					//to be processed by successor processor 
					channelName= CHANNEL+frontCount.toString();
					sendMessage(channelName,msg);
				}
				
			}
			
			private function processMessage(msg:Object):void {
				var obj:Object = msg.transmittedObj;
				//processing Object
				obj.c = obj.a + obj.b;
				msg.processedAt = new Date().time;
				msg.isProcessed =true;
				sendMessage(channelName,msg);
			}
			
			private function sendMessage(channelName:String,msg:Object):void {
				sendConn.send(channelName,COMMONHANDLER,msg);
			} 
		]]>
	</fx:Script> 
</s:Application>