edu.iu.daal_kmeans.regroupallgather.KMeansDaalLauncher.java Source code

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Here is the source code for edu.iu.daal_kmeans.regroupallgather.KMeansDaalLauncher.java

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/*
 * Copyright 2013-2016 Indiana University
 * 
 * Licensed 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 edu.iu.daal_kmeans.regroupallgather;

import edu.iu.data_aux.HarpDAALConstants;
import edu.iu.data_aux.Initialize;
import edu.iu.data_gen.DataGenerator;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;

import java.text.SimpleDateFormat;
import java.util.Calendar;

public class KMeansDaalLauncher extends Configured implements Tool {

    public static void main(String[] argv) throws Exception {
        int res = ToolRunner.run(new Configuration(), new KMeansDaalLauncher(), argv);
        System.exit(res);
    }

    /**
     * Launches all the tasks in order.
     */
    @Override
    public int run(String[] args) throws Exception {

        /* Put shared libraries into the distributed cache */
        Configuration conf = this.getConf();

        Initialize init = new Initialize(conf, args);

        /* Put shared libraries into the distributed cache */
        init.loadDistributedLibs();

        // load args
        init.loadSysArgs();

        //load app args
        conf.setInt(HarpDAALConstants.FILE_DIM, Integer.parseInt(args[init.getSysArgNum()]));
        conf.setInt(HarpDAALConstants.FEATURE_DIM, Integer.parseInt(args[init.getSysArgNum() + 1]));
        conf.setInt(HarpDAALConstants.NUM_CENTROIDS, Integer.parseInt(args[init.getSysArgNum() + 2]));

        // config job
        System.out.println("Starting Job");
        long perJobSubmitTime = System.currentTimeMillis();
        System.out.println(
                "Start Job#" + " " + new SimpleDateFormat("HH:mm:ss.SSS").format(Calendar.getInstance().getTime()));
        Job kmeansJob = init.createJob("kmeansJob", KMeansDaalLauncher.class, KMeansDaalCollectiveMapper.class);

        // initialize centroids data
        JobConf thisjobConf = (JobConf) kmeansJob.getConfiguration();
        FileSystem fs = FileSystem.get(conf);
        int nFeatures = Integer.parseInt(args[init.getSysArgNum() + 1]);
        int numCentroids = Integer.parseInt(args[init.getSysArgNum() + 2]);
        Path workPath = init.getWorkPath();
        Path cenDir = new Path(workPath, "centroids");
        fs.mkdirs(cenDir);
        if (fs.exists(cenDir)) {
            fs.delete(cenDir, true);
        }

        Path initCenDir = new Path(cenDir, "init_centroids");
        DataGenerator.generateDenseDataSingle(numCentroids, nFeatures, 1000, 0, " ", initCenDir, fs);
        thisjobConf.set(HarpDAALConstants.CEN_DIR, cenDir.toString());
        thisjobConf.set(HarpDAALConstants.CENTROID_FILE_NAME, "init_centroids");

        //generate Data if required
        boolean generateData = Boolean.parseBoolean(args[init.getSysArgNum() + 3]);
        if (generateData) {
            Path inputPath = init.getInputPath();
            int total_points = Integer.parseInt(args[init.getSysArgNum() + 4]);
            int total_files = Integer.parseInt(args[init.getSysArgNum() + 5]);
            String tmpDirPathName = args[init.getSysArgNum() + 6];

            DataGenerator.generateDenseDataMulti(total_points, nFeatures, total_files, 2, 1, ",", inputPath,
                    tmpDirPathName, fs);
        }

        // finish job
        boolean jobSuccess = kmeansJob.waitForCompletion(true);
        System.out.println(
                "End Job#" + " " + new SimpleDateFormat("HH:mm:ss.SSS").format(Calendar.getInstance().getTime()));
        System.out.println(
                "| Job#" + " Finished in " + (System.currentTimeMillis() - perJobSubmitTime) + " miliseconds |");
        if (!jobSuccess) {
            kmeansJob.killJob();
            System.out.println("kmeansJob failed");
        }

        return 0;
    }

}