diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGen.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGen.java
index 991d969..efdbd41 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGen.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGen.java
@@ -74,10 +74,10 @@
 import edu.uci.ics.pregelix.core.runtime.touchpoint.WritableComparingBinaryComparatorFactory;
 import edu.uci.ics.pregelix.core.util.DataflowUtils;
 import edu.uci.ics.pregelix.core.util.DatatypeHelper;
+import edu.uci.ics.pregelix.dataflow.VertexWriteOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.HDFSFileWriteOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.VertexFileScanOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.base.IConfigurationFactory;
-import edu.uci.ics.pregelix.dataflow.std.FileWriteOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.base.IRecordDescriptorFactory;
 import edu.uci.ics.pregelix.dataflow.std.base.IRuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.bootstrap.StorageManagerInterface;
@@ -339,7 +339,7 @@
 		IRecordDescriptorFactory inputRdFactory = DataflowUtils
 				.getWritableRecordDescriptorFactoryFromWritableClasses(
 						vertexIdClass.getName(), vertexClass.getName());
-		FileWriteOperatorDescriptor writer = new FileWriteOperatorDescriptor(
+		VertexWriteOperatorDescriptor writer = new VertexWriteOperatorDescriptor(
 				spec, inputRdFactory, resultFileSplitProvider, preHookFactory,
 				null);
 		PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, writer,
@@ -420,7 +420,7 @@
 		IRecordDescriptorFactory inputRdFactory = DataflowUtils
 				.getWritableRecordDescriptorFactoryFromWritableClasses(
 						vertexIdClass.getName(), vertexClass.getName());
-		FileWriteOperatorDescriptor writer = new FileWriteOperatorDescriptor(
+		VertexWriteOperatorDescriptor writer = new VertexWriteOperatorDescriptor(
 				spec, inputRdFactory, resultFileSplitProvider, preHookFactory,
 				null);
 		PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, writer,
diff --git a/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/join/JoinTest.java b/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/join/JoinTest.java
index 4dfe57d..97659d4 100644
--- a/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/join/JoinTest.java
+++ b/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/join/JoinTest.java
@@ -62,7 +62,7 @@
 import edu.uci.ics.pregelix.core.jobgen.clusterconfig.ClusterConfig;
 import edu.uci.ics.pregelix.core.util.PregelixHyracksIntegrationUtil;
 import edu.uci.ics.pregelix.core.util.TestUtils;
-import edu.uci.ics.pregelix.dataflow.std.FileWriteOperatorDescriptor;
+import edu.uci.ics.pregelix.dataflow.VertexWriteOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.IndexNestedLoopJoinOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.ProjectOperatorDescriptor;
 import edu.uci.ics.pregelix.runtime.bootstrap.StorageManagerInterface;
@@ -195,7 +195,7 @@
         FileSplit[] results = new FileSplit[1];
         results[0] = resultFile;
         IFileSplitProvider resultFileSplitProvider = new ConstantFileSplitProvider(results);
-        FileWriteOperatorDescriptor writer = new FileWriteOperatorDescriptor(spec, null, resultFileSplitProvider, null,
+        VertexWriteOperatorDescriptor writer = new VertexWriteOperatorDescriptor(spec, null, resultFileSplitProvider, null,
                 null);
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, writer, new String[] { NC1_ID });
         PartitionConstraintHelper.addPartitionCountConstraint(spec, writer, 1);
@@ -362,7 +362,7 @@
         FileSplit[] results = new FileSplit[1];
         results[0] = resultFile;
         IFileSplitProvider resultFileSplitProvider = new ConstantFileSplitProvider(results);
-        FileWriteOperatorDescriptor writer = new FileWriteOperatorDescriptor(spec, null, resultFileSplitProvider, null,
+        VertexWriteOperatorDescriptor writer = new VertexWriteOperatorDescriptor(spec, null, resultFileSplitProvider, null,
                 null);
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, writer, new String[] { NC1_ID });
         PartitionConstraintHelper.addPartitionCountConstraint(spec, writer, 1);
@@ -459,7 +459,7 @@
         FileSplit[] results = new FileSplit[1];
         results[0] = resultFile;
         IFileSplitProvider resultFileSplitProvider = new ConstantFileSplitProvider(results);
-        FileWriteOperatorDescriptor writer = new FileWriteOperatorDescriptor(spec, null, resultFileSplitProvider, null,
+        VertexWriteOperatorDescriptor writer = new VertexWriteOperatorDescriptor(spec, null, resultFileSplitProvider, null,
                 null);
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, writer, new String[] { NC1_ID });
         PartitionConstraintHelper.addPartitionCountConstraint(spec, writer, 1);
@@ -566,7 +566,7 @@
         FileSplit[] results = new FileSplit[1];
         results[0] = resultFile;
         IFileSplitProvider resultFileSplitProvider = new ConstantFileSplitProvider(results);
-        FileWriteOperatorDescriptor writer = new FileWriteOperatorDescriptor(spec, null, resultFileSplitProvider, null,
+        VertexWriteOperatorDescriptor writer = new VertexWriteOperatorDescriptor(spec, null, resultFileSplitProvider, null,
                 null);
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, writer, new String[] { NC1_ID });
         PartitionConstraintHelper.addPartitionCountConstraint(spec, writer, 1);
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/FileWriteOperatorDescriptor.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexWriteOperatorDescriptor.java
similarity index 89%
rename from pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/FileWriteOperatorDescriptor.java
rename to pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexWriteOperatorDescriptor.java
index 356f06c..d7cbb3a 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/FileWriteOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexWriteOperatorDescriptor.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.pregelix.dataflow.std;
+package edu.uci.ics.pregelix.dataflow;
 
 import java.io.FileOutputStream;
 import java.io.IOException;
@@ -35,14 +35,14 @@
 import edu.uci.ics.pregelix.dataflow.std.base.IRecordDescriptorFactory;
 import edu.uci.ics.pregelix.dataflow.std.base.IRuntimeHookFactory;
 
-public class FileWriteOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor {
+public class VertexWriteOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor {
     private static final long serialVersionUID = 1L;
     private final FileSplit[] splits;
     private final IRuntimeHookFactory preHookFactory;
     private final IRuntimeHookFactory postHookFactory;
     private final IRecordDescriptorFactory inputRdFactory;
 
-    public FileWriteOperatorDescriptor(JobSpecification spec, IRecordDescriptorFactory inputRdFactory,
+    public VertexWriteOperatorDescriptor(JobSpecification spec, IRecordDescriptorFactory inputRdFactory,
             IFileSplitProvider fileSplitProvider, IRuntimeHookFactory preHookFactory,
             IRuntimeHookFactory postHookFactory) {
         super(spec, 1, 0);
@@ -60,7 +60,6 @@
             private RecordDescriptor rd0;
             private FrameDeserializer frameDeserializer;
             private PrintWriter outputWriter;
-            private final static String separator = "|";
 
             @Override
             public void open() throws HyracksDataException {
@@ -82,10 +81,7 @@
                 frameDeserializer.reset(frame);
                 while (!frameDeserializer.done()) {
                     Object[] tuple = frameDeserializer.deserializeRecord();
-                    for (int i = 0; i < tuple.length - 1; i++) {
-                        outputWriter.print(StringSerializationUtils.toString(tuple[i]));
-                        outputWriter.print(separator);
-                    }
+                    // output the vertex
                     outputWriter.print(StringSerializationUtils.toString(tuple[tuple.length - 1]));
                     outputWriter.println();
                 }
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ConnectedComponentsVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ConnectedComponentsVertex.java
index 30e88ea..74ae455 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ConnectedComponentsVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ConnectedComponentsVertex.java
@@ -126,6 +126,11 @@
         }
     }
 
+    @Override
+    public String toString() {
+        return getVertexId() + " " + getVertexValue();
+    }
+
     public static void main(String[] args) throws Exception {
         PregelixJob job = new PregelixJob(ConnectedComponentsVertex.class.getSimpleName());
         job.setVertexClass(ConnectedComponentsVertex.class);
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/PageRankVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/PageRankVertex.java
index a76837e..586e1f2 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/PageRankVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/PageRankVertex.java
@@ -187,6 +187,11 @@
                     new Text(vertex.getVertexValue().toString()));
         }
     }
+    
+    @Override
+    public String toString() {
+        return getVertexId() + " " + getVertexValue();
+    }
 
     /**
      * Simple VertexOutputFormat that supports {@link SimplePageRankVertex}
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ReachabilityVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ReachabilityVertex.java
index 2f0ca45..daafc82 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ReachabilityVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ReachabilityVertex.java
@@ -160,6 +160,11 @@
         }
         voteToHalt();
     }
+    
+    @Override
+    public String toString() {
+        return getVertexId() + " " + getVertexValue();
+    }
 
     private void signalTerminate() {
         Configuration conf = getContext().getConfiguration();
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ShortestPathsVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ShortestPathsVertex.java
index a018f08..199870e 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ShortestPathsVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ShortestPathsVertex.java
@@ -126,6 +126,11 @@
         }
         voteToHalt();
     }
+    
+    @Override
+    public String toString() {
+        return getVertexId() + " " + getVertexValue();
+    }
 
     public static void main(String[] args) throws Exception {
         PregelixJob job = new PregelixJob(ShortestPathsVertex.class.getSimpleName());
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/MaximalCliqueVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/MaximalCliqueVertex.java
index c128a92..f7dcb47 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/MaximalCliqueVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/MaximalCliqueVertex.java
@@ -203,6 +203,11 @@
             voteToHalt();
         }
     }
+    
+    @Override
+    public String toString() {
+        return getVertexId() + " " + getVertexValue();
+    }
 
     private void sendMsg(List<Edge<VLongWritable, NullWritable>> edges) {
         for (int i = 0; i < edges.size(); i++) {
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TriangleCountingVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TriangleCountingVertex.java
index 88618a3..2ee9d17 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TriangleCountingVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TriangleCountingVertex.java
@@ -95,6 +95,11 @@
                     new Text(vertex.getVertexValue().toString()));
         }
     }
+    
+    @Override
+    public String toString() {
+        return getVertexId() + " " + getVertexValue();
+    }
 
     /**
      * output format for triangle counting
diff --git a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/util/TestUtils.java b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/util/TestUtils.java
index 1b22b47..d89ec46 100644
--- a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/util/TestUtils.java
+++ b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/util/TestUtils.java
@@ -62,8 +62,8 @@
             if (row1.equals(row2))
                 continue;
 
-            String[] fields1 = row1.split(",");
-            String[] fields2 = row2.split(",");
+            String[] fields1 = row1.split(" ");
+            String[] fields2 = row2.split(" ");
 
             for (int j = 0; j < fields1.length; j++) {
                 if (fields1[j].equals(fields2[j])) {
@@ -71,8 +71,6 @@
                 } else if (fields1[j].indexOf('.') < 0) {
                     return false;
                 } else {
-                    fields1[j] = fields1[j].split("=")[1];
-                    fields2[j] = fields2[j].split("=")[1];
                     Double double1 = Double.parseDouble(fields1[j]);
                     Double double2 = Double.parseDouble(fields2[j]);
                     float float1 = (float) double1.doubleValue();
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result
index b8efedc..45376e2 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result
@@ -1,20 +1,20 @@
-0|Vertex(id=0,value=0, edges=(1,))
-1|Vertex(id=1,value=0, edges=(1,2,))
-2|Vertex(id=2,value=0, edges=(1,2,3,))
-3|Vertex(id=3,value=0, edges=(1,2,3,4,))
-4|Vertex(id=4,value=0, edges=(1,2,3,4,5,))
-5|Vertex(id=5,value=0, edges=(1,2,3,4,5,6,))
-6|Vertex(id=6,value=0, edges=(1,2,3,4,5,6,7,))
-7|Vertex(id=7,value=0, edges=(1,2,3,4,5,6,7,8,))
-8|Vertex(id=8,value=0, edges=(1,2,3,4,5,6,7,8,9,))
-9|Vertex(id=9,value=0, edges=(1,2,3,4,5,6,7,8,9,10,))
-10|Vertex(id=10,value=0, edges=(11,))
-11|Vertex(id=11,value=0, edges=(11,12,))
-12|Vertex(id=12,value=0, edges=(11,12,13,))
-13|Vertex(id=13,value=0, edges=(11,12,13,14,))
-14|Vertex(id=14,value=0, edges=(11,12,13,14,15,))
-15|Vertex(id=15,value=0, edges=(11,12,13,14,15,16,))
-16|Vertex(id=16,value=0, edges=(11,12,13,14,15,16,17,))
-17|Vertex(id=17,value=0, edges=(11,12,13,14,15,16,17,18,))
-18|Vertex(id=18,value=0, edges=(11,12,13,14,15,16,17,18,19,))
-19|Vertex(id=19,value=0, edges=(0,11,12,13,14,15,16,17,18,19,))
+0 0
+1 0
+2 0
+3 0
+4 0
+5 0
+6 0
+7 0
+8 0
+9 0
+10 0
+11 0
+12 0
+13 0
+14 0
+15 0
+16 0
+17 0
+18 0
+19 0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result
index ad448b2..dbc30fc 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result
@@ -1,23 +1,23 @@
-0|Vertex(id=0,value=0, edges=(1,50,))
-1|Vertex(id=1,value=0, edges=(1,2,))
-2|Vertex(id=2,value=0, edges=(1,2,3,))
-3|Vertex(id=3,value=0, edges=(1,2,3,4,))
-4|Vertex(id=4,value=0, edges=(1,2,3,4,5,))
-5|Vertex(id=5,value=0, edges=(1,2,3,4,5,6,))
-6|Vertex(id=6,value=0, edges=(1,2,3,4,5,6,7,))
-7|Vertex(id=7,value=0, edges=(1,2,3,4,5,6,7,8,))
-8|Vertex(id=8,value=0, edges=(1,2,3,4,5,6,7,8,9,))
-9|Vertex(id=9,value=0, edges=(1,2,3,4,5,6,7,8,9,10,))
-10|Vertex(id=10,value=0, edges=(11,99,))
-11|Vertex(id=11,value=0, edges=(11,12,101,))
-12|Vertex(id=12,value=0, edges=(11,12,13,))
-13|Vertex(id=13,value=0, edges=(11,12,13,14,))
-14|Vertex(id=14,value=0, edges=(11,12,13,14,15,))
-15|Vertex(id=15,value=0, edges=(11,12,13,14,15,16,))
-16|Vertex(id=16,value=0, edges=(11,12,13,14,15,16,17,))
-17|Vertex(id=17,value=0, edges=(11,12,13,14,15,16,17,18,))
-18|Vertex(id=18,value=0, edges=(11,12,13,14,15,16,17,18,19,))
-19|Vertex(id=19,value=0, edges=(0,11,12,13,14,15,16,17,18,19,))
-21|Vertex(id=21,value=21, edges=(22,23,24,))
-25|Vertex(id=25,value=25, edges=())
-27|Vertex(id=27,value=27, edges=())
+0 0
+1 0
+2 0
+3 0
+4 0
+5 0
+6 0
+7 0
+8 0
+9 0
+10 0
+11 0
+12 0
+13 0
+14 0
+15 0
+16 0
+17 0
+18 0
+19 0
+21 21
+25 25
+27 27
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result
index ba9cb80..d238037 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result
@@ -1,7 +1,7 @@
-1|Vertex(id=1,value=1,2,3,4;, edges=(2,3,4,))
-2|Vertex(id=2,value=2,3,4;, edges=(1,3,4,5,))
-3|Vertex(id=3,value=, edges=(1,2,4,5,))
-4|Vertex(id=4,value=, edges=(1,2,3,))
-5|Vertex(id=5,value=, edges=(6,7,))
-6|Vertex(id=6,value=, edges=(5,7,))
-7|Vertex(id=7,value=, edges=(5,6,))
+1 1,2,3,4;
+2 2,3,4;
+3 
+4 
+5 
+6 
+7 
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRank.result b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result
index f38e191..9c4d83a 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRank.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result
@@ -1,20 +1,20 @@
-0|Vertex(id=0,value=0.008290140026154316, edges=(1,))
-1|Vertex(id=1,value=0.1535152819247165, edges=(1,2,))
-2|Vertex(id=2,value=0.14646839195826475, edges=(1,2,3,))
-3|Vertex(id=3,value=0.08125113985998214, edges=(1,2,3,4,))
-4|Vertex(id=4,value=0.03976979906329426, edges=(1,2,3,4,5,))
-5|Vertex(id=5,value=0.0225041581462058, edges=(1,2,3,4,5,6,))
-6|Vertex(id=6,value=0.015736276824953852, edges=(1,2,3,4,5,6,7,))
-7|Vertex(id=7,value=0.012542224114863661, edges=(1,2,3,4,5,6,7,8,))
-8|Vertex(id=8,value=0.010628239626209894, edges=(1,2,3,4,5,6,7,8,9,))
-9|Vertex(id=9,value=0.009294348455354817, edges=(1,2,3,4,5,6,7,8,9,10,))
-10|Vertex(id=10,value=0.008290140026154316, edges=(11,))
-11|Vertex(id=11,value=0.15351528192471647, edges=(11,12,))
-12|Vertex(id=12,value=0.14646839195826472, edges=(11,12,13,))
-13|Vertex(id=13,value=0.08125113985998214, edges=(11,12,13,14,))
-14|Vertex(id=14,value=0.03976979906329425, edges=(11,12,13,14,15,))
-15|Vertex(id=15,value=0.0225041581462058, edges=(11,12,13,14,15,16,))
-16|Vertex(id=16,value=0.015736276824953852, edges=(11,12,13,14,15,16,17,))
-17|Vertex(id=17,value=0.012542224114863661, edges=(11,12,13,14,15,16,17,18,))
-18|Vertex(id=18,value=0.010628239626209894, edges=(11,12,13,14,15,16,17,18,19,))
-19|Vertex(id=19,value=0.009294348455354817, edges=(0,11,12,13,14,15,16,17,18,19,))
+0 0.008290140026154316
+1 0.1535152819247165
+2 0.14646839195826475
+3 0.08125113985998214
+4 0.03976979906329426
+5 0.0225041581462058
+6 0.015736276824953852
+7 0.012542224114863661
+8 0.010628239626209894
+9 0.009294348455354817
+10 0.008290140026154316
+11 0.15351528192471647
+12 0.14646839195826472
+13 0.08125113985998214
+14 0.03976979906329425
+15 0.0225041581462058
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result
index ab05d38..6432eda 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result
index 1fc108a..2bd09e1 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result
index ab05d38..6432eda 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result
index ab05d38..9a747a6 100755
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result
index 74113a8..a1dfc0f 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result
index ea0edc2..1693fb2 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result
index 7bb0ca3..46d1c73 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result
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diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result
index f2c31a6..b42462f 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result
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-8|Vertex(id=8,value=8.0, edges=(1,2,3,4,5,6,7,8,9,))
-9|Vertex(id=9,value=9.0, edges=(1,2,3,4,5,6,7,8,9,10,))
-10|Vertex(id=10,value=10.0, edges=(11,))
-11|Vertex(id=11,value=11.0, edges=(11,12,))
-12|Vertex(id=12,value=12.0, edges=(11,12,13,))
-13|Vertex(id=13,value=13.0, edges=(11,12,13,14,))
-14|Vertex(id=14,value=14.0, edges=(11,12,13,14,15,))
-15|Vertex(id=15,value=15.0, edges=(11,12,13,14,15,16,))
-16|Vertex(id=16,value=16.0, edges=(11,12,13,14,15,16,17,))
-17|Vertex(id=17,value=17.0, edges=(11,12,13,14,15,16,17,18,))
-18|Vertex(id=18,value=18.0, edges=(11,12,13,14,15,16,17,18,19,))
-19|Vertex(id=19,value=19.0, edges=(0,11,12,13,14,15,16,17,18,19,))
+0 0.0
+1 1.0
+2 2.0
+3 3.0
+4 4.0
+5 5.0
+6 6.0
+7 7.0
+8 8.0
+9 9.0
+10 10.0
+11 11.0
+12 12.0
+13 13.0
+14 14.0
+15 15.0
+16 16.0
+17 17.0
+18 18.0
+19 19.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result
index 8d2050b..4818e13 100644
--- a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result
+++ b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result
@@ -1,7 +1,7 @@
-1|Vertex(id=1,value=3, edges=(2,3,4,))
-2|Vertex(id=2,value=2, edges=(1,3,4,5,))
-3|Vertex(id=3,value=0, edges=(1,2,4,5,))
-4|Vertex(id=4,value=0, edges=(1,2,3,))
-5|Vertex(id=5,value=1, edges=(6,7,))
-6|Vertex(id=6,value=0, edges=(5,7,))
-7|Vertex(id=7,value=0, edges=(5,6,))
+1 3
+2 2
+3 0
+4 0
+5 1
+6 0
+7 0
diff --git a/pregelix/pregelix-example/src/test/resources/only.txt b/pregelix/pregelix-example/src/test/resources/only.txt
index 0c36816..e69de29 100644
--- a/pregelix/pregelix-example/src/test/resources/only.txt
+++ b/pregelix/pregelix-example/src/test/resources/only.txt
@@ -1 +0,0 @@
-Max
\ No newline at end of file