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 0b1be61..5816c0c 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
@@ -73,7 +73,6 @@
 import edu.uci.ics.pregelix.core.jobgen.provider.NormalizedKeyComputerFactoryProvider;
 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.HDFSFileWriteOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.VertexFileScanOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.VertexWriteOperatorDescriptor;
@@ -84,6 +83,7 @@
 import edu.uci.ics.pregelix.runtime.bootstrap.TreeIndexRegistryProvider;
 import edu.uci.ics.pregelix.runtime.touchpoint.RuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdPartitionComputerFactory;
+import edu.uci.ics.pregelix.runtime.touchpoint.WritableSerializerDeserializerFactory;
 
 public abstract class JobGen implements IJobGen {
     private static final Logger LOGGER = Logger.getLogger(JobGen.class.getName());
@@ -238,7 +238,7 @@
          * connect operator descriptors
          */
         ITuplePartitionComputerFactory hashPartitionComputerFactory = new VertexIdPartitionComputerFactory(
-                DatatypeHelper.createSerializerDeserializer(vertexIdClass));
+                new WritableSerializerDeserializerFactory(vertexIdClass));
         spec.connect(new MToNPartitioningConnectorDescriptor(spec, hashPartitionComputerFactory), scanner, 0, sorter, 0);
         spec.connect(new OneToOneConnectorDescriptor(spec), sorter, 0, btreeBulkLoad, 0);
         return spec;
@@ -314,7 +314,7 @@
          * connect operator descriptors
          */
         ITuplePartitionComputerFactory hashPartitionComputerFactory = new VertexIdPartitionComputerFactory(
-                DatatypeHelper.createSerializerDeserializer(vertexIdClass));
+                new WritableSerializerDeserializerFactory(vertexIdClass));
         spec.connect(new OneToOneConnectorDescriptor(spec), scanner, 0, sorter, 0);
         spec.connect(new MToNPartitioningMergingConnectorDescriptor(spec, hashPartitionComputerFactory, sortFields,
                 comparatorFactories), sorter, 0, writer, 0);
@@ -381,7 +381,7 @@
         int[] sortFields = new int[1];
         sortFields[0] = 0;
         ITuplePartitionComputerFactory hashPartitionComputerFactory = new VertexIdPartitionComputerFactory(
-                DatatypeHelper.createSerializerDeserializer(vertexIdClass));
+                new WritableSerializerDeserializerFactory(vertexIdClass));
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, scanner, 0);
         spec.connect(new MToNPartitioningMergingConnectorDescriptor(spec, hashPartitionComputerFactory, sortFields,
                 comparatorFactories), scanner, 0, writer, 0);
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenInnerJoin.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenInnerJoin.java
index 9de4c04..6d8fc34 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenInnerJoin.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenInnerJoin.java
@@ -73,6 +73,7 @@
 import edu.uci.ics.pregelix.runtime.touchpoint.PreSuperStepRuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.RuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdPartitionComputerFactory;
+import edu.uci.ics.pregelix.runtime.touchpoint.WritableSerializerDeserializerFactory;
 
 public class JobGenInnerJoin extends JobGen {
 
@@ -245,7 +246,7 @@
         ClusterConfig.setLocationConstraint(spec, emptySink4);
 
         ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                rdUnnestedMessage.getFields()[0]);
+                new WritableSerializerDeserializerFactory(vertexIdClass));
         ITuplePartitionComputerFactory unifyingPartitionComputerFactory = new MergePartitionComputerFactory();
 
         /** connect all operators **/
@@ -470,7 +471,7 @@
 
         ITuplePartitionComputerFactory unifyingPartitionComputerFactory = new MergePartitionComputerFactory();
         ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                rdUnnestedMessage.getFields()[0]);
+                new WritableSerializerDeserializerFactory(vertexIdClass));
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
         spec.connect(new OneToOneConnectorDescriptor(spec), preSuperStep, 0, materializeRead, 0);
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoin.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoin.java
index 91c15b2..5fb0c14 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoin.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoin.java
@@ -73,6 +73,7 @@
 import edu.uci.ics.pregelix.runtime.touchpoint.RuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdNullWriterFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdPartitionComputerFactory;
+import edu.uci.ics.pregelix.runtime.touchpoint.WritableSerializerDeserializerFactory;
 
 public class JobGenOuterJoin extends JobGen {
 
@@ -221,14 +222,13 @@
 
         /** construct empty sink operator */
         EmptySinkOperatorDescriptor emptySink3 = new EmptySinkOperatorDescriptor(spec);
-        ClusterConfig.setLocationConstraint(spec, emptySink3);
 
         /** construct empty sink operator */
         EmptySinkOperatorDescriptor emptySink4 = new EmptySinkOperatorDescriptor(spec);
         ClusterConfig.setLocationConstraint(spec, emptySink4);
 
         ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                rdUnnestedMessage.getFields()[0]);
+                new WritableSerializerDeserializerFactory(vertexIdClass));
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
         spec.connect(new OneToOneConnectorDescriptor(spec), preSuperStep, 0, scanner, 0);
@@ -432,7 +432,7 @@
 
         ITuplePartitionComputerFactory unifyingPartitionComputerFactory = new MergePartitionComputerFactory();
         ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                rdUnnestedMessage.getFields()[0]);
+                new WritableSerializerDeserializerFactory(vertexIdClass));
 
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSingleSort.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSingleSort.java
index ee1fd0f..a3b4ef9 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSingleSort.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSingleSort.java
@@ -72,6 +72,7 @@
 import edu.uci.ics.pregelix.runtime.touchpoint.RuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdNullWriterFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdPartitionComputerFactory;
+import edu.uci.ics.pregelix.runtime.touchpoint.WritableSerializerDeserializerFactory;
 
 public class JobGenOuterJoinSingleSort extends JobGen {
 
@@ -221,7 +222,7 @@
 
         ITuplePartitionComputerFactory unifyingPartitionComputerFactory = new MergePartitionComputerFactory();
         ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                rdUnnestedMessage.getFields()[0]);
+                new WritableSerializerDeserializerFactory(vertexIdClass));
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
         spec.connect(new OneToOneConnectorDescriptor(spec), preSuperStep, 0, scanner, 0);
@@ -408,7 +409,7 @@
 
         ITuplePartitionComputerFactory unifyingPartitionComputerFactory = new MergePartitionComputerFactory();
         ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                rdUnnestedMessage.getFields()[0]);
+                new WritableSerializerDeserializerFactory(vertexIdClass));
 
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSort.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSort.java
index 628e9ce..0b30dbb 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSort.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSort.java
@@ -72,6 +72,7 @@
 import edu.uci.ics.pregelix.runtime.touchpoint.RuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdNullWriterFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdPartitionComputerFactory;
+import edu.uci.ics.pregelix.runtime.touchpoint.WritableSerializerDeserializerFactory;
 
 public class JobGenOuterJoinSort extends JobGen {
 
@@ -234,7 +235,7 @@
         ClusterConfig.setLocationConstraint(spec, emptySink4);
 
         ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                rdUnnestedMessage.getFields()[0]);
+                new WritableSerializerDeserializerFactory(vertexIdClass));
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
         spec.connect(new OneToOneConnectorDescriptor(spec), preSuperStep, 0, scanner, 0);
@@ -441,7 +442,7 @@
 
         ITuplePartitionComputerFactory unifyingPartitionComputerFactory = new MergePartitionComputerFactory();
         ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                rdUnnestedMessage.getFields()[0]);
+                new WritableSerializerDeserializerFactory(vertexIdClass));
 
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataflowUtils.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataflowUtils.java
index 25ad28a..e9132c4 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataflowUtils.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataflowUtils.java
@@ -28,6 +28,7 @@
 import edu.uci.ics.pregelix.dataflow.std.base.IRecordDescriptorFactory;
 import edu.uci.ics.pregelix.runtime.simpleagg.AccumulatingAggregatorFactory;
 import edu.uci.ics.pregelix.runtime.simpleagg.AggregationFunctionFactory;
+import edu.uci.ics.pregelix.runtime.touchpoint.DatatypeHelper;
 
 public class DataflowUtils {
 
diff --git a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/ISerializerDeserializerFactory.java b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/ISerializerDeserializerFactory.java
new file mode 100644
index 0000000..16b067a
--- /dev/null
+++ b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/ISerializerDeserializerFactory.java
@@ -0,0 +1,11 @@
+package edu.uci.ics.pregelix.dataflow.std.base;
+
+import java.io.Serializable;
+
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+
+public interface ISerializerDeserializerFactory<T> extends Serializable {
+
+	public ISerializerDeserializer<T> getSerializerDeserializer();
+
+}
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingReadOperatorDescriptor.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingReadOperatorDescriptor.java
index b1bb555..9a87f02 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingReadOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingReadOperatorDescriptor.java
@@ -66,14 +66,7 @@
                     } catch (Exception e) {
                         writer.fail();
                         throw new HyracksDataException(e);
-                    } finally {
-                        /**
-                         * remove last iteration's state
-                         */
-                        IterationUtils.removeIterationState(ctx, partition);
-                        writer.close();
                     }
-                    complete = true;
                 }
             }
 
@@ -84,7 +77,12 @@
 
             @Override
             public void close() throws HyracksDataException {
-
+                /**
+                 * remove last iteration's state
+                 */
+                IterationUtils.removeIterationState(ctx, partition);
+                writer.close();
+                complete = true;
             }
         };
     }
diff --git a/pregelix/pregelix-example/pom.xml b/pregelix/pregelix-example/pom.xml
index 20c45ec..0c4e277 100644
--- a/pregelix/pregelix-example/pom.xml
+++ b/pregelix/pregelix-example/pom.xml
@@ -69,7 +69,7 @@
 				<version>2.7.2</version>
 				<configuration>
 					<forkMode>pertest</forkMode>
-					<argLine>-enableassertions -Xmx512m -XX:MaxPermSize=300m -Dfile.encoding=UTF-8
+					<argLine>-enableassertions -Xmx2047m -XX:MaxPermSize=300m -Dfile.encoding=UTF-8
 						-Djava.util.logging.config.file=src/test/resources/logging.properties</argLine>
 					<includes>
 						<include>**/*TestSuite.java</include>
diff --git a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestCase.java b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestCase.java
index af797bf..00f6f54 100644
--- a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestCase.java
+++ b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestCase.java
@@ -25,20 +25,13 @@
 import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
 import org.junit.Test;
 
-import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.pregelix.api.job.PregelixJob;
-import edu.uci.ics.pregelix.core.jobgen.JobGen;
-import edu.uci.ics.pregelix.core.jobgen.JobGenInnerJoin;
-import edu.uci.ics.pregelix.core.jobgen.JobGenOuterJoin;
-import edu.uci.ics.pregelix.core.jobgen.JobGenOuterJoinSingleSort;
-import edu.uci.ics.pregelix.core.jobgen.JobGenOuterJoinSort;
+import edu.uci.ics.pregelix.core.base.IDriver.Plan;
+import edu.uci.ics.pregelix.core.driver.Driver;
 import edu.uci.ics.pregelix.core.util.PregelixHyracksIntegrationUtil;
-import edu.uci.ics.pregelix.dataflow.util.IterationUtils;
 import edu.uci.ics.pregelix.example.util.TestUtils;
 
 public class RunJobTestCase extends TestCase {
-    private static final String NC1 = "nc1";
-    private static final String HYRACKS_APP_NAME = "pregelix";
     private static String HDFS_INPUTPATH = "/webmap";
     private static String HDFS_OUTPUTPAH = "/result";
 
@@ -55,13 +48,14 @@
     private static String HDFS_OUTPUTPAH5 = "/resultclique";
 
     private final PregelixJob job;
-    private JobGen[] giraphJobGens;
-    private final String resultFileName;
-    private final String expectedFileName;
+    private final String resultFileDir;
+    private final String expectedFileDir;
     private final String jobFile;
+    private final Driver driver = new Driver(this.getClass());
+    private final FileSystem dfs;
 
-    public RunJobTestCase(String hadoopConfPath, String jobName, String jobFile, String resultFile, String expectedFile)
-            throws Exception {
+    public RunJobTestCase(String hadoopConfPath, String jobName, String jobFile, String resultFile,
+            String expectedFile, FileSystem dfs) throws Exception {
         super("test");
         this.jobFile = jobFile;
         this.job = new PregelixJob("test");
@@ -85,16 +79,9 @@
             FileOutputFormat.setOutputPath(job, new Path(HDFS_OUTPUTPAH5));
         }
         job.setJobName(jobName);
-        this.resultFileName = resultFile;
-        this.expectedFileName = expectedFile;
-        giraphJobGens = new JobGen[4];
-        giraphJobGens[0] = new JobGenOuterJoin(job);
-        waitawhile();
-        giraphJobGens[1] = new JobGenInnerJoin(job);
-        waitawhile();
-        giraphJobGens[2] = new JobGenOuterJoinSort(job);
-        waitawhile();
-        giraphJobGens[3] = new JobGenOuterJoinSingleSort(job);
+        this.resultFileDir = resultFile;
+        this.expectedFileDir = expectedFile;
+        this.dfs = dfs;
     }
 
     private void waitawhile() throws InterruptedException {
@@ -106,89 +93,19 @@
     @Test
     public void test() throws Exception {
         setUp();
-        for (JobGen jobGen : giraphJobGens) {
-            FileSystem dfs = FileSystem.get(job.getConfiguration());
-            dfs.delete(new Path(HDFS_OUTPUTPAH), true);
-            runCreate(jobGen);
-            runDataLoad(jobGen);
-            int i = 1;
-            boolean terminate = false;
-            do {
-                runLoopBodyIteration(jobGen, i);
-                terminate = IterationUtils.readTerminationState(job.getConfiguration(), jobGen.getJobId());
-                i++;
-            } while (!terminate);
-            runIndexScan(jobGen);
-            runHDFSWRite(jobGen);
-            runCleanup(jobGen);
-            compareResults();
+        Plan[] plans = new Plan[] { Plan.OUTER_JOIN };
+        for (Plan plan : plans) {
+            driver.runJob(job, plan, PregelixHyracksIntegrationUtil.CC_HOST,
+                    PregelixHyracksIntegrationUtil.TEST_HYRACKS_CC_CLIENT_PORT, false);
         }
+        compareResults();
         tearDown();
         waitawhile();
     }
 
-    private void runCreate(JobGen jobGen) throws Exception {
-        try {
-            JobSpecification treeCreateJobSpec = jobGen.generateCreatingJob();
-            PregelixHyracksIntegrationUtil.runJob(treeCreateJobSpec, HYRACKS_APP_NAME);
-        } catch (Exception e) {
-            throw e;
-        }
-    }
-
-    private void runDataLoad(JobGen jobGen) throws Exception {
-        try {
-            JobSpecification bulkLoadJobSpec = jobGen.generateLoadingJob();
-            PregelixHyracksIntegrationUtil.runJob(bulkLoadJobSpec, HYRACKS_APP_NAME);
-        } catch (Exception e) {
-            throw e;
-        }
-    }
-
-    private void runLoopBodyIteration(JobGen jobGen, int iteration) throws Exception {
-        try {
-            JobSpecification loopBody = jobGen.generateJob(iteration);
-            PregelixHyracksIntegrationUtil.runJob(loopBody, HYRACKS_APP_NAME);
-        } catch (Exception e) {
-            throw e;
-        }
-    }
-
-    private void runIndexScan(JobGen jobGen) throws Exception {
-        try {
-            JobSpecification scanSortPrintJobSpec = jobGen.scanIndexPrintGraph(NC1, resultFileName);
-            PregelixHyracksIntegrationUtil.runJob(scanSortPrintJobSpec, HYRACKS_APP_NAME);
-        } catch (Exception e) {
-            throw e;
-        }
-    }
-
-    private void runHDFSWRite(JobGen jobGen) throws Exception {
-        try {
-            JobSpecification scanSortPrintJobSpec = jobGen.scanIndexWriteGraph();
-            PregelixHyracksIntegrationUtil.runJob(scanSortPrintJobSpec, HYRACKS_APP_NAME);
-        } catch (Exception e) {
-            throw e;
-        }
-    }
-
-    private void runCleanup(JobGen jobGen) throws Exception {
-        try {
-            JobSpecification[] cleanups = jobGen.generateCleanup();
-            runJobArray(cleanups);
-        } catch (Exception e) {
-            throw e;
-        }
-    }
-
-    private void runJobArray(JobSpecification[] jobs) throws Exception {
-        for (JobSpecification job : jobs) {
-            PregelixHyracksIntegrationUtil.runJob(job, HYRACKS_APP_NAME);
-        }
-    }
-
     private void compareResults() throws Exception {
-        TestUtils.compareWithResult(new File(resultFileName), new File(expectedFileName));
+        dfs.copyToLocalFile(FileOutputFormat.getOutputPath(job), new Path(resultFileDir));
+        TestUtils.compareWithResultDir(new File(expectedFileDir), new File(resultFileDir));
     }
 
     public String toString() {
diff --git a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestSuite.java b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestSuite.java
index f415a03..a490049 100644
--- a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestSuite.java
+++ b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestSuite.java
@@ -61,14 +61,13 @@
 
     private static final String DATA_PATH3 = "data/clique/clique.txt";
     private static final String HDFS_PATH3 = "/clique/";
-    
+
     private static final String DATA_PATH4 = "data/clique2/clique.txt";
     private static final String HDFS_PATH4 = "/clique2/";
-    
+
     private static final String DATA_PATH5 = "data/clique3/clique.txt";
     private static final String HDFS_PATH5 = "/clique3/";
 
-    private static final String HYRACKS_APP_NAME = "pregelix";
     private static final String HADOOP_CONF_PATH = ACTUAL_RESULT_DIR + File.separator + "conf.xml";
     private MiniDFSCluster dfsCluster;
 
@@ -116,12 +115,12 @@
         dest = new Path(HDFS_PATH3);
         dfs.mkdirs(dest);
         dfs.copyFromLocalFile(src, dest);
-        
+
         src = new Path(DATA_PATH4);
         dest = new Path(HDFS_PATH4);
         dfs.mkdirs(dest);
         dfs.copyFromLocalFile(src, dest);
-        
+
         src = new Path(DATA_PATH5);
         dest = new Path(HDFS_PATH5);
         dfs.mkdirs(dest);
@@ -154,6 +153,7 @@
         RunJobTestSuite testSuite = new RunJobTestSuite();
         testSuite.setUp();
         boolean onlyEnabled = false;
+        FileSystem dfs = FileSystem.get(testSuite.conf);
 
         if (onlys.size() > 0) {
             onlyEnabled = true;
@@ -169,7 +169,7 @@
                     String resultFileName = ACTUAL_RESULT_DIR + File.separator + jobExtToResExt(qFile.getName());
                     String expectedFileName = EXPECTED_RESULT_DIR + File.separator + jobExtToResExt(qFile.getName());
                     testSuite.addTest(new RunJobTestCase(HADOOP_CONF_PATH, qFile.getName(), qFile.getAbsolutePath()
-                            .toString(), resultFileName, expectedFileName));
+                            .toString(), resultFileName, expectedFileName, dfs));
                 }
             }
         }
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 d89ec46..d406125 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
@@ -20,6 +20,13 @@
 
 public class TestUtils {
 
+    public static void compareWithResultDir(File expectedFileDir, File actualFileDir) throws Exception {
+        String[] fileNames = expectedFileDir.list();
+        for (String fileName : fileNames) {
+            compareWithResult(new File(expectedFileDir, fileName), new File(actualFileDir, fileName));
+        }
+    }
+
     public static void compareWithResult(File expectedFile, File actualFile) throws Exception {
         BufferedReader readerExpected = new BufferedReader(new FileReader(expectedFile));
         BufferedReader readerActual = new BufferedReader(new FileReader(actualFile));
@@ -28,7 +35,6 @@
         try {
             while ((lineExpected = readerExpected.readLine()) != null) {
                 lineActual = readerActual.readLine();
-                // Assert.assertEquals(lineExpected, lineActual);
                 if (lineActual == null) {
                     throw new Exception("Actual result changed at line " + num + ":\n< " + lineExpected + "\n> ");
                 }
@@ -62,8 +68,10 @@
             if (row1.equals(row2))
                 continue;
 
-            String[] fields1 = row1.split(" ");
-            String[] fields2 = row2.split(" ");
+            boolean spaceOrTab = false;
+            spaceOrTab = row1.contains(" ");
+            String[] fields1 = spaceOrTab ? row1.split(" ") : row1.split("\t");
+            String[] fields2 = spaceOrTab ? row2.split(" ") : row2.split("\t");
 
             for (int j = 0; j < fields1.length; j++) {
                 if (fields1[j].equals(fields2[j])) {
@@ -76,7 +84,7 @@
                     float float1 = (float) double1.doubleValue();
                     float float2 = (float) double2.doubleValue();
 
-                    if (Math.abs(float1 - float2) == 0)
+                    if (Math.abs(float1 - float2) < 1.0e-7)
                         continue;
                     else {
                         return false;
diff --git a/pregelix/pregelix-example/src/test/resources/cluster/stores.properties b/pregelix/pregelix-example/src/test/resources/cluster/stores.properties
index daf881e..04732be 100644
--- a/pregelix/pregelix-example/src/test/resources/cluster/stores.properties
+++ b/pregelix/pregelix-example/src/test/resources/cluster/stores.properties
@@ -1 +1 @@
-store=teststore
\ No newline at end of file
+store=teststore1,teststore2
\ No newline at end of file
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result
deleted file mode 100644
index 45376e2..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result
+++ /dev/null
@@ -1,20 +0,0 @@
-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/ConnectedComponentsReal.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result/part-0
new file mode 100755
index 0000000..f1f1d9b
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result/part-0
@@ -0,0 +1,5 @@
+0	0
+4	0
+8	0
+12	0
+16	0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result/part-1
new file mode 100755
index 0000000..0fa02c1
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result/part-1
@@ -0,0 +1,5 @@
+1	0
+5	0
+9	0
+13	0
+17	0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result/part-2
new file mode 100755
index 0000000..542ccae
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result/part-2
@@ -0,0 +1,5 @@
+2	0
+6	0
+10	0
+14	0
+18	0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result/part-3
new file mode 100755
index 0000000..1d5d6d9
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsReal.result/part-3
@@ -0,0 +1,5 @@
+3	0
+7	0
+11	0
+15	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
deleted file mode 100644
index dbc30fc..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result
+++ /dev/null
@@ -1,23 +0,0 @@
-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/ConnectedComponentsRealComplex.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result/part-0
new file mode 100755
index 0000000..f1f1d9b
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result/part-0
@@ -0,0 +1,5 @@
+0	0
+4	0
+8	0
+12	0
+16	0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result/part-1
new file mode 100755
index 0000000..4e7d87a
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result/part-1
@@ -0,0 +1,7 @@
+1	0
+5	0
+9	0
+13	0
+17	0
+21	21
+25	25
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result/part-2
new file mode 100755
index 0000000..542ccae
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result/part-2
@@ -0,0 +1,5 @@
+2	0
+6	0
+10	0
+14	0
+18	0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result/part-3
new file mode 100755
index 0000000..513f3ff
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex.result/part-3
@@ -0,0 +1,6 @@
+3	0
+7	0
+11	0
+15	0
+19	0
+27	27
diff --git a/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result b/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result
deleted file mode 100644
index a30166c..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result
+++ /dev/null
@@ -1,13 +0,0 @@
-1 0.0
-5 0.0
-7 0.0
-11 0.0
-13 0.0
-17 0.0
-19 0.0
-100 0.0
-500 0.0
-700 0.0
-1100 0.0
-1300 0.0
-1700 0.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result/part-0
new file mode 100755
index 0000000..b5f7ed3
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result/part-0
@@ -0,0 +1,6 @@
+100	0.0
+500	0.0
+700	0.0
+1100	0.0
+1300	0.0
+1700	0.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result/part-1
new file mode 100755
index 0000000..4eca51d
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result/part-1
@@ -0,0 +1,4 @@
+1	0.0
+5	0.0
+13	0.0
+17	0.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result/part-2
new file mode 100755
index 0000000..e69de29
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result/part-2
diff --git a/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result/part-3
new file mode 100755
index 0000000..9446ff7
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/GraphMutation.result/part-3
@@ -0,0 +1,3 @@
+7	0.0
+11	0.0
+19	0.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result
deleted file mode 100644
index d238037..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result
+++ /dev/null
@@ -1,7 +0,0 @@
-1 1,2,3,4;
-2 2,3,4;
-3 
-4 
-5 
-6 
-7 
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result/part-0
new file mode 100755
index 0000000..902fadf
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result/part-0
@@ -0,0 +1 @@
+4	
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result/part-1
new file mode 100755
index 0000000..ba34424
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result/part-1
@@ -0,0 +1,2 @@
+1	1,2,3,4;
+5	
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result/part-2
new file mode 100755
index 0000000..834e389
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result/part-2
@@ -0,0 +1,2 @@
+2	2,3,4;
+6	
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result/part-3
new file mode 100755
index 0000000..b8e2461
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique.result/part-3
@@ -0,0 +1,2 @@
+3	3,4;
+7	
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result
deleted file mode 100644
index afbffcd..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result
+++ /dev/null
@@ -1,6 +0,0 @@
-1 1,2,3;1,3,4;
-2 2,3;
-3 
-4 
-5 
-6 
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result/part-0
new file mode 100755
index 0000000..902fadf
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result/part-0
@@ -0,0 +1 @@
+4	
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result/part-1
new file mode 100755
index 0000000..b83e1a3
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result/part-1
@@ -0,0 +1,2 @@
+1	1,2,3;1,3,4;
+5	
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result/part-2
new file mode 100755
index 0000000..45e2a23
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result/part-2
@@ -0,0 +1,2 @@
+2	2,3;
+6	
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result/part-3
new file mode 100755
index 0000000..447aa38
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique2.result/part-3
@@ -0,0 +1 @@
+3	3,4;3,5;
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result
deleted file mode 100644
index fa473e8..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result
+++ /dev/null
@@ -1,20 +0,0 @@
-0 0,19;
-1 1,2,3,4,5,6,7,8,9;
-2 2,3,4,5,6,7,8,9;
-3 
-4 
-5 
-6 
-7 
-8 
-9 
-10 
-11 11,12,13,14,15,16,17,18,19;
-12 12,13,14,15,16,17,18,19;
-13 
-14 
-15 
-16 
-17 
-18 
-19 
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result/part-0
new file mode 100755
index 0000000..b4dced4
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result/part-0
@@ -0,0 +1,5 @@
+0	0,19;
+4	4,5,6,7,8,9;
+8	
+12	12,13,14,15,16,17,18,19;
+16	
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result/part-1
new file mode 100755
index 0000000..f554dfe
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result/part-1
@@ -0,0 +1,5 @@
+1	1,2,3,4,5,6,7,8,9;
+5	
+9	
+13	
+17	
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result/part-2
new file mode 100755
index 0000000..4df9b8c
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result/part-2
@@ -0,0 +1,5 @@
+2	2,3,4,5,6,7,8,9;
+6	
+10	
+14	
+18	
diff --git a/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result/part-3
new file mode 100755
index 0000000..5131560
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/MaximalClique3.result/part-3
@@ -0,0 +1,5 @@
+3	3,4,5,6,7,8,9;
+7	
+11	11,12,13,14,15,16,17,18,19;
+15	
+19	
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRank.result b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result
deleted file mode 100644
index 9c4d83a..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRank.result
+++ /dev/null
@@ -1,20 +0,0 @@
-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
-16 0.015736276824953852
-17 0.012542224114863661
-18 0.010628239626209894
-19 0.009294348455354817
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRank.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result/part-0
new file mode 100755
index 0000000..5b07add
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result/part-0
@@ -0,0 +1,10 @@
+0	0.008290140026154316
+4	0.039769799063294246
+8	0.010628239626209894
+12	0.14646839195826478
+16	0.015736276824953852
+20	0.008290140026154316
+24	0.039769799063294246
+28	0.010628239626209894
+32	0.14646839195826478
+36	0.015736276824953852
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRank.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result/part-1
new file mode 100755
index 0000000..caf8a4c
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result/part-1
@@ -0,0 +1,10 @@
+1	0.15351528192471647
+5	0.0225041581462058
+9	0.009294348455354817
+13	0.08125113985998214
+17	0.012542224114863661
+21	0.15351528192471647
+25	0.0225041581462058
+29	0.009294348455354817
+33	0.08125113985998214
+37	0.012542224114863661
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRank.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result/part-2
new file mode 100755
index 0000000..29a9d52
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result/part-2
@@ -0,0 +1,10 @@
+2	0.14646839195826475
+6	0.015736276824953852
+10	0.008290140026154316
+14	0.03976979906329426
+18	0.010628239626209894
+22	0.14646839195826472
+26	0.01573627682495385
+30	0.008290140026154316
+34	0.03976979906329426
+38	0.010628239626209894
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRank.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result/part-3
new file mode 100755
index 0000000..c9bfeb8
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRank.result/part-3
@@ -0,0 +1,10 @@
+3	0.08125113985998214
+7	0.012542224114863663
+11	0.1535152819247165
+15	0.0225041581462058
+19	0.009294348455354817
+23	0.08125113985998211
+27	0.012542224114863661
+31	0.1535152819247165
+35	0.0225041581462058
+39	0.009294348455354817
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result
deleted file mode 100644
index 6432eda..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result
+++ /dev/null
@@ -1,20 +0,0 @@
-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 0.03976979906329426
-15 0.0225041581462058
-16 0.015736276824953852
-17 0.012542224114863661
-18 0.010628239626209894
-19 0.009294348455354817
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result/part-0
new file mode 100755
index 0000000..383076e
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result/part-0
@@ -0,0 +1,5 @@
+0	0.008290140026154316
+4	0.03976979906329426
+8	0.010628239626209894
+12	0.14646839195826478
+16	0.015736276824953852
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result/part-1
new file mode 100755
index 0000000..0b1a38c
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result/part-1
@@ -0,0 +1,5 @@
+1	0.15351528192471653
+5	0.0225041581462058
+9	0.009294348455354817
+13	0.08125113985998214
+17	0.012542224114863661
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result/part-2
new file mode 100755
index 0000000..ec995b2
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result/part-2
@@ -0,0 +1,5 @@
+2	0.14646839195826478
+6	0.015736276824953852
+10	0.008290140026154316
+14	0.03976979906329426
+18	0.010628239626209894
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result/part-3
new file mode 100755
index 0000000..edb7484
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal.result/part-3
@@ -0,0 +1,5 @@
+3	0.08125113985998214
+7	0.012542224114863661
+11	0.15351528192471653
+15	0.0225041581462058
+19	0.009294348455354817
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result
deleted file mode 100644
index 2bd09e1..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result
+++ /dev/null
@@ -1,23 +0,0 @@
-0 0.0072088164890121405
-1 0.12352056961948686
-2 0.12045670441668178
-3 0.06798545786459467
-4 0.03387281259892814
-5 0.01942600635480669
-6 0.013661020012182747
-7 0.0109034351563503
-8 0.009241684574402657
-9 0.008082028259564783
-10 0.007208817414047232
-11 0.07555839219845861
-12 0.07249452699565352
-13 0.05063539695954156
-14 0.029644452692487822
-15 0.018670183493927354
-16 0.013558283213067561
-17 0.010892790899883237
-18 0.009240874593661061
-19 0.008081987856433137
-21 0.006521739130434782
-25 0.006521739130434782
-27 0.006521739130434782
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result/part-0
new file mode 100755
index 0000000..1d26aee
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result/part-0
@@ -0,0 +1,5 @@
+0	0.0072088164890121405
+4	0.03387281259892814
+8	0.009241684574402657
+12	0.07249452699565351
+16	0.013558283213067561
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result/part-1
new file mode 100755
index 0000000..d013c3e
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result/part-1
@@ -0,0 +1,7 @@
+1	0.12352056961948689
+5	0.01942600635480669
+9	0.008082028259564783
+13	0.050635396959541557
+17	0.010892790899883237
+21	0.006521739130434782
+25	0.006521739130434782
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result/part-2
new file mode 100755
index 0000000..e8aa0e1
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result/part-2
@@ -0,0 +1,5 @@
+2	0.12045670441668178
+6	0.013661020012182747
+10	0.007208817414047232
+14	0.029644452692487822
+18	0.009240874593661061
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result/part-3
new file mode 100755
index 0000000..e52970d
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealComplex.result/part-3
@@ -0,0 +1,6 @@
+3	0.06798545786459467
+7	0.0109034351563503
+11	0.0755583921984586
+15	0.018670183493927354
+19	0.008081987856433137
+27	0.006521739130434782
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result
deleted file mode 100644
index 6432eda..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result
+++ /dev/null
@@ -1,20 +0,0 @@
-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 0.03976979906329426
-15 0.0225041581462058
-16 0.015736276824953852
-17 0.012542224114863661
-18 0.010628239626209894
-19 0.009294348455354817
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result/part-0
new file mode 100755
index 0000000..383076e
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result/part-0
@@ -0,0 +1,5 @@
+0	0.008290140026154316
+4	0.03976979906329426
+8	0.010628239626209894
+12	0.14646839195826478
+16	0.015736276824953852
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result/part-1
new file mode 100755
index 0000000..0b1a38c
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result/part-1
@@ -0,0 +1,5 @@
+1	0.15351528192471653
+5	0.0225041581462058
+9	0.009294348455354817
+13	0.08125113985998214
+17	0.012542224114863661
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result/part-2
new file mode 100755
index 0000000..ec995b2
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result/part-2
@@ -0,0 +1,5 @@
+2	0.14646839195826478
+6	0.015736276824953852
+10	0.008290140026154316
+14	0.03976979906329426
+18	0.010628239626209894
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result/part-3
new file mode 100755
index 0000000..5593738
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealDynamic.result/part-3
@@ -0,0 +1,5 @@
+3	0.08125113985998214
+7	0.012542224114863661
+11	0.15351528192471653
+15	0.022504158146205808
+19	0.009294348455354817
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result
deleted file mode 100755
index 9a747a6..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result
+++ /dev/null
@@ -1,20 +0,0 @@
-0 0.008290140026154316
-1 0.15351528192471647
-2 0.14646839195826475
-3 0.08125113985998211
-4 0.03976979906329425
-5 0.0225041581462058
-6 0.01573627682495385
-7 0.012542224114863661
-8 0.010628239626209894
-9 0.009294348455354817
-10 0.008290140026154316
-11 0.1535152819247165
-12 0.14646839195826475
-13 0.08125113985998214
-14 0.03976979906329426
-15 0.0225041581462058
-16 0.015736276824953852
-17 0.012542224114863661
-18 0.010628239626209894
-19 0.009294348455354817
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result/part-0
new file mode 100755
index 0000000..6fd5f60
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result/part-0
@@ -0,0 +1,5 @@
+0	0.008290140026154316
+4	0.03976979906329425
+8	0.010628239626209894
+12	0.14646839195826475
+16	0.01573627682495385
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result/part-1
new file mode 100755
index 0000000..0b1a38c
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result/part-1
@@ -0,0 +1,5 @@
+1	0.15351528192471653
+5	0.0225041581462058
+9	0.009294348455354817
+13	0.08125113985998214
+17	0.012542224114863661
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result/part-2
new file mode 100755
index 0000000..69a2803
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result/part-2
@@ -0,0 +1,5 @@
+2	0.14646839195826478
+6	0.015736276824953852
+10	0.008290140026154316
+14	0.03976979906329425
+18	0.010628239626209894
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result/part-3
new file mode 100755
index 0000000..7dcb359
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankRealNoCombiner.result/part-3
@@ -0,0 +1,5 @@
+3	0.08125113985998214
+7	0.012542224114863661
+11	0.1535152819247165
+15	0.0225041581462058
+19	0.009294348455354817
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result
deleted file mode 100644
index a1dfc0f..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result
+++ /dev/null
@@ -1,23 +0,0 @@
-0 2
-1 3
-2 1
-3 1
-4 1
-5 1
-6 1
-7 1
-8 1
-9 1
-10 3
-11 2
-12 2
-13 2
-14 2
-15 2
-16 2
-17 2
-18 2
-19 2
-21 0
-25 0
-27 0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result/part-0
new file mode 100755
index 0000000..6e3ba89
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result/part-0
@@ -0,0 +1,5 @@
+0	0
+4	1
+8	1
+12	2
+16	2
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result/part-1
new file mode 100755
index 0000000..2fcc8eb
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result/part-1
@@ -0,0 +1,7 @@
+1	1
+5	1
+9	1
+13	2
+17	2
+21	0
+25	0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result/part-2
new file mode 100755
index 0000000..c93732c
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result/part-2
@@ -0,0 +1,5 @@
+2	1
+6	1
+10	3
+14	2
+18	2
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result/part-3
new file mode 100755
index 0000000..c745349
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplex.result/part-3
@@ -0,0 +1,6 @@
+3	1
+7	1
+11	2
+15	2
+19	2
+27	0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result
deleted file mode 100644
index 1693fb2..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result
+++ /dev/null
@@ -1,23 +0,0 @@
-0 1
-1 1
-2 1
-3 1
-4 1
-5 1
-6 1
-7 1
-8 1
-9 1
-10 1
-11 1
-12 1
-13 1
-14 1
-15 1
-16 1
-17 1
-18 1
-19 1
-21 0
-25 2
-27 0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result/part-0
new file mode 100755
index 0000000..8e02e13
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result/part-0
@@ -0,0 +1,5 @@
+0	1
+4	1
+8	1
+12	1
+16	1
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result/part-1
new file mode 100755
index 0000000..cfbb359
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result/part-1
@@ -0,0 +1,7 @@
+1	1
+5	1
+9	1
+13	1
+17	1
+21	0
+25	2
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result/part-2
new file mode 100755
index 0000000..8e3ca7c
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result/part-2
@@ -0,0 +1,5 @@
+2	1
+6	1
+10	1
+14	1
+18	1
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result/part-3
new file mode 100755
index 0000000..5f83a3d
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ReachibilityRealComplexNoConnectivity.result/part-3
@@ -0,0 +1,6 @@
+3	1
+7	1
+11	1
+15	1
+19	1
+27	0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result
deleted file mode 100644
index 46d1c73..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result
+++ /dev/null
@@ -1,20 +0,0 @@
-0 0.0
-1 0.0
-2 100.0
-3 300.0
-4 600.0
-5 1000.0
-6 1500.0
-7 2100.0
-8 2800.0
-9 3600.0
-10 4500.0
-11 5500.0
-12 6600.0
-13 7800.0
-14 9100.0
-15 10500.0
-16 12000.0
-17 13600.0
-18 15300.0
-19 17100.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result/part-0
new file mode 100755
index 0000000..e8eadcd
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result/part-0
@@ -0,0 +1,10 @@
+0	0.0
+4	600.0
+8	2800.0
+12	6600.0
+16	12000.0
+20	19000.0
+24	27600.0
+28	37800.0
+32	49600.0
+36	63000.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result/part-1
new file mode 100755
index 0000000..c3d200b
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result/part-1
@@ -0,0 +1,10 @@
+1	0.0
+5	1000.0
+9	3600.0
+13	7800.0
+17	13600.0
+21	21000.0
+25	30000.0
+29	40600.0
+33	52800.0
+37	66600.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result/part-2
new file mode 100755
index 0000000..779a683
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result/part-2
@@ -0,0 +1,10 @@
+2	100.0
+6	1500.0
+10	4500.0
+14	9100.0
+18	15300.0
+22	23100.0
+26	32500.0
+30	43500.0
+34	56100.0
+38	70300.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result/part-3
new file mode 100755
index 0000000..57d26c9
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ShortestPaths.result/part-3
@@ -0,0 +1,10 @@
+3	300.0
+7	2100.0
+11	5500.0
+15	10500.0
+19	17100.0
+23	25300.0
+27	35100.0
+31	46500.0
+35	59500.0
+39	74100.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result
deleted file mode 100644
index b42462f..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result
+++ /dev/null
@@ -1,20 +0,0 @@
-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/ShortestPathsReal.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result/part-0
new file mode 100755
index 0000000..a1cabe2
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result/part-0
@@ -0,0 +1,5 @@
+0	0.0
+4	4.0
+8	8.0
+12	12.0
+16	16.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result/part-1
new file mode 100755
index 0000000..303ed2a
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result/part-1
@@ -0,0 +1,5 @@
+1	1.0
+5	5.0
+9	9.0
+13	13.0
+17	17.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result/part-2
new file mode 100755
index 0000000..0020d25
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result/part-2
@@ -0,0 +1,5 @@
+2	2.0
+6	6.0
+10	10.0
+14	14.0
+18	18.0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result/part-3
new file mode 100755
index 0000000..e2657bd
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ShortestPathsReal.result/part-3
@@ -0,0 +1,5 @@
+3	3.0
+7	7.0
+11	11.0
+15	15.0
+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
deleted file mode 100644
index 4818e13..0000000
--- a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result
+++ /dev/null
@@ -1,7 +0,0 @@
-1 3
-2 2
-3 0
-4 0
-5 1
-6 0
-7 0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/.part-0.crc b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/.part-0.crc
new file mode 100644
index 0000000..61e7df3
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/.part-0.crc
Binary files differ
diff --git a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/.part-1.crc b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/.part-1.crc
new file mode 100644
index 0000000..9f34827
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/.part-1.crc
Binary files differ
diff --git a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/.part-2.crc b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/.part-2.crc
new file mode 100644
index 0000000..cfe7fa2
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/.part-2.crc
Binary files differ
diff --git a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/.part-3.crc b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/.part-3.crc
new file mode 100644
index 0000000..9959654
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/.part-3.crc
Binary files differ
diff --git a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/part-0 b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/part-0
new file mode 100755
index 0000000..b36d2b5
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/part-0
@@ -0,0 +1 @@
+4	0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/part-1 b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/part-1
new file mode 100755
index 0000000..2812c76
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/part-1
@@ -0,0 +1,2 @@
+1	3
+5	1
diff --git a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/part-2 b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/part-2
new file mode 100755
index 0000000..25cfb7b
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/part-2
@@ -0,0 +1,2 @@
+2	2
+6	0
diff --git a/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/part-3 b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/part-3
new file mode 100755
index 0000000..2bd8d38
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/TriangleCounting.result/part-3
@@ -0,0 +1,2 @@
+3	0
+7	0
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DatatypeHelper.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/DatatypeHelper.java
similarity index 98%
rename from pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DatatypeHelper.java
rename to pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/DatatypeHelper.java
index ee319c6..f9085c4 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DatatypeHelper.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/DatatypeHelper.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.pregelix.core.util;
+package edu.uci.ics.pregelix.runtime.touchpoint;
 
 import java.io.DataInput;
 import java.io.DataOutput;
@@ -80,6 +80,7 @@
                 throw new HyracksDataException(e);
             }
         }
+
     }
 
     @SuppressWarnings({ "rawtypes", "unchecked" })
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexIdPartitionComputerFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexIdPartitionComputerFactory.java
index 5eff497..5b4b1f0 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexIdPartitionComputerFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexIdPartitionComputerFactory.java
@@ -24,20 +24,22 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ITuplePartitionComputerFactory;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.comm.util.ByteBufferInputStream;
+import edu.uci.ics.pregelix.dataflow.std.base.ISerializerDeserializerFactory;
 
 public class VertexIdPartitionComputerFactory<K extends Writable, V extends Writable> implements
         ITuplePartitionComputerFactory {
     private static final long serialVersionUID = 1L;
-    private final ISerializerDeserializer<K> keyIO;
+    private final ISerializerDeserializerFactory<K> keyIOFactory;
 
-    public VertexIdPartitionComputerFactory(ISerializerDeserializer<K> keyIO) {
-        this.keyIO = keyIO;
+    public VertexIdPartitionComputerFactory(ISerializerDeserializerFactory<K> keyIOFactory) {
+        this.keyIOFactory = keyIOFactory;
     }
 
     public ITuplePartitionComputer createPartitioner() {
         return new ITuplePartitionComputer() {
             private final ByteBufferInputStream bbis = new ByteBufferInputStream();
             private final DataInputStream dis = new DataInputStream(bbis);
+            private final ISerializerDeserializer<K> keyIO = keyIOFactory.getSerializerDeserializer();
 
             public int partition(IFrameTupleAccessor accessor, int tIndex, int nParts) throws HyracksDataException {
                 int keyStart = accessor.getTupleStartOffset(tIndex) + accessor.getFieldSlotsLength()
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/WritableSerializerDeserializerFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/WritableSerializerDeserializerFactory.java
new file mode 100644
index 0000000..96f781c
--- /dev/null
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/WritableSerializerDeserializerFactory.java
@@ -0,0 +1,21 @@
+package edu.uci.ics.pregelix.runtime.touchpoint;
+
+import org.apache.hadoop.io.Writable;
+
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.pregelix.dataflow.std.base.ISerializerDeserializerFactory;
+
+public class WritableSerializerDeserializerFactory<T extends Writable> implements ISerializerDeserializerFactory<T> {
+    private static final long serialVersionUID = 1L;
+    private final Class<T> clazz;
+
+    public WritableSerializerDeserializerFactory(Class<T> clazz) {
+        this.clazz = clazz;
+    }
+
+    @SuppressWarnings({ "rawtypes", "unchecked" })
+    @Override
+    public ISerializerDeserializer getSerializerDeserializer() {
+        return DatatypeHelper.createSerializerDeserializer(clazz);
+    }
+}