Author: edwardyoon
Date: Mon Nov 3 18:33:57 2008
New Revision: 711159
URL: http://svn.apache.org/viewvc?rev=711159&view=rev
Log:
Add mult example.
Added:
incubator/hama/trunk/src/examples/org/apache/hama/examples/MatrixMultiplication.java
Modified:
incubator/hama/trunk/src/examples/org/apache/hama/examples/ExampleDriver.java
incubator/hama/trunk/src/examples/org/apache/hama/examples/MatrixAddition.java
Modified:
incubator/hama/trunk/src/examples/org/apache/hama/examples/ExampleDriver.java
URL:
http://svn.apache.org/viewvc/incubator/hama/trunk/src/examples/org/apache/hama/examples/ExampleDriver.java?rev=711159&r1=711158&r2=711159&view=diff
==============================================================================
---
incubator/hama/trunk/src/examples/org/apache/hama/examples/ExampleDriver.java
(original)
+++
incubator/hama/trunk/src/examples/org/apache/hama/examples/ExampleDriver.java
Mon Nov 3 18:33:57 2008
@@ -25,7 +25,8 @@
public static void main(String[] args) {
ProgramDriver pgd = new ProgramDriver();
try {
- pgd.addClass("addition", MatrixAddition.class, "A matrix addition.");
+ pgd.addClass("add", MatrixAddition.class, "matrix-matrix addition.");
+ pgd.addClass("mult", MatrixAddition.class, "matrix-matrix
multiplication.");
pgd.driver(args);
} catch (Throwable e) {
e.printStackTrace();
Modified:
incubator/hama/trunk/src/examples/org/apache/hama/examples/MatrixAddition.java
URL:
http://svn.apache.org/viewvc/incubator/hama/trunk/src/examples/org/apache/hama/examples/MatrixAddition.java?rev=711159&r1=711158&r2=711159&view=diff
==============================================================================
---
incubator/hama/trunk/src/examples/org/apache/hama/examples/MatrixAddition.java
(original)
+++
incubator/hama/trunk/src/examples/org/apache/hama/examples/MatrixAddition.java
Mon Nov 3 18:33:57 2008
@@ -34,7 +34,7 @@
public static void main(String[] args) throws IOException {
if (args.length < 2) {
- System.out.println("addition [-m maps] [-r reduces] <row_m>
<column_n>");
+ System.out.println("add [-m maps] [-r reduces] <row_m> <column_n>");
System.exit(-1);
} else {
parseArgs(args);
Added:
incubator/hama/trunk/src/examples/org/apache/hama/examples/MatrixMultiplication.java
URL:
http://svn.apache.org/viewvc/incubator/hama/trunk/src/examples/org/apache/hama/examples/MatrixMultiplication.java?rev=711159&view=auto
==============================================================================
---
incubator/hama/trunk/src/examples/org/apache/hama/examples/MatrixMultiplication.java
(added)
+++
incubator/hama/trunk/src/examples/org/apache/hama/examples/MatrixMultiplication.java
Mon Nov 3 18:33:57 2008
@@ -0,0 +1,75 @@
+/**
+ * Copyright 2007 The Apache Software Foundation
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hama.examples;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.hama.DenseMatrix;
+import org.apache.hama.HamaConfiguration;
+import org.apache.hama.Matrix;
+
+public class MatrixMultiplication {
+ private static HamaConfiguration conf = new HamaConfiguration();
+ private static int row;
+ private static int column;
+
+ public static void main(String[] args) throws IOException {
+ if (args.length < 2) {
+ System.out.println("mult [-m maps] [-r reduces] <row_m> <column_n>");
+ System.exit(-1);
+ } else {
+ parseArgs(args);
+ }
+
+ Matrix a = DenseMatrix.random(conf, row, column);
+ Matrix b = DenseMatrix.random(conf, row, column);
+
+ Matrix c = a.mult(b);
+
+ a.close();
+ b.close();
+ c.close();
+ }
+
+ private static void parseArgs(String[] args) {
+ List<String> other_args = new ArrayList<String>();
+ for (int i = 0; i < args.length; ++i) {
+ try {
+ if ("-m".equals(args[i])) {
+ conf.setNumMapTasks(Integer.parseInt(args[++i]));
+ } else if ("-r".equals(args[i])) {
+ conf.setNumReduceTasks(Integer.parseInt(args[++i]));
+ } else {
+ other_args.add(args[i]);
+ }
+ } catch (NumberFormatException except) {
+ System.out.println("ERROR: Integer expected instead of " + args[i]);
+ } catch (ArrayIndexOutOfBoundsException except) {
+ System.out.println("ERROR: Required parameter missing from "
+ + args[i - 1]);
+ }
+ }
+
+ row = Integer.parseInt(other_args.get(0));
+ column = Integer.parseInt(other_args.get(1));
+ }
+}
