Example usage for java.lang Long MAX_VALUE

Introduction

In this page you can find the example usage for java.lang Long MAX_VALUE.

Prototype

long MAX_VALUE

To view the source code for java.lang Long MAX_VALUE.

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Document

A constant holding the maximum value a long can have, 2⁶³-1.

Usage

From source file:ffx.numerics.fft.Real3DCuda.java

/**
 * <p>//w w w  . j av a2 s .  co m
 * main</p>
 *
 * @param args an array of {@link java.lang.String} objects.
 * @throws java.lang.Exception if any.
 */
public static void main(String[] args) throws Exception {
    int dimNotFinal = 64;
    int reps = 10;
    if (args != null) {
        try {
            dimNotFinal = Integer.parseInt(args[0]);
            if (dimNotFinal < 1) {
                dimNotFinal = 64;
            }
            reps = Integer.parseInt(args[1]);
            if (reps < 1) {
                reps = 5;
            }
        } catch (Exception e) {
        }
    }
    if (dimNotFinal % 2 != 0) {
        dimNotFinal++;
    }
    final int dim = dimNotFinal;
    System.out.println(String.format(
            "Initializing a %d cubed grid.\n" + "The best timing out of %d repititions will be used.", dim,
            reps));

    final int dimCubed = dim * dim * dim;
    final int dimCubed2 = (dim + 2) * dim * dim;

    /**
     * Create an array to save the initial input and result.
     */
    final double orig[] = new double[dimCubed2];
    final double answer[] = new double[dimCubed2];
    final double data[] = new double[dimCubed2];
    final double recip[] = new double[dimCubed];

    final float origf[] = new float[dimCubed2];
    final float dataf[] = new float[dimCubed2];
    final float recipf[] = new float[dimCubed];

    Random randomNumberGenerator = new Random(1);
    int index = 0;
    int index2 = 0;

    /**
     * Row-major order.
     */
    for (int x = 0; x < dim; x++) {
        for (int y = 0; y < dim; y++) {
            for (int z = 0; z < dim; z++) {
                float randomNumber = randomNumberGenerator.nextFloat();
                orig[index] = randomNumber;
                origf[index] = randomNumber;
                index++;

                recip[index2] = 1.0;
                recipf[index2] = 1.0f;
                index2++;
            }
            // Padding
            index += 2;
        }
    }

    Real3D real3D = new Real3D(dim, dim, dim);
    Real3DParallel real3DParallel = new Real3DParallel(dim, dim, dim, new ParallelTeam(),
            IntegerSchedule.fixed());
    Real3DCuda real3DCUDA = new Real3DCuda(dim, dim, dim, dataf, recipf);

    Thread cudaThread = new Thread(real3DCUDA);
    cudaThread.setPriority(Thread.MAX_PRIORITY);
    cudaThread.start();

    double toSeconds = 0.000000001;
    long parTime = Long.MAX_VALUE;
    long seqTime = Long.MAX_VALUE;
    long clTime = Long.MAX_VALUE;

    real3D.setRecip(recip);
    for (int i = 0; i < reps; i++) {
        System.arraycopy(orig, 0, data, 0, dimCubed2);
        long time = System.nanoTime();
        real3D.convolution(data);
        time = (System.nanoTime() - time);
        System.out.println(String.format("%2d Sequential: %8.3f", i + 1, toSeconds * time));
        if (time < seqTime) {
            seqTime = time;
        }
    }
    System.arraycopy(data, 0, answer, 0, dimCubed2);

    real3DParallel.setRecip(recip);
    for (int i = 0; i < reps; i++) {
        System.arraycopy(orig, 0, data, 0, dimCubed2);
        long time = System.nanoTime();
        real3DParallel.convolution(data);
        time = (System.nanoTime() - time);
        System.out.println(String.format("%2d Parallel:   %8.3f", i + 1, toSeconds * time));
        if (time < parTime) {
            parTime = time;
        }
    }
    double maxError = Double.MIN_VALUE;
    double rmse = 0.0;
    index = 0;
    for (int x = 0; x < dim; x++) {
        for (int y = 0; y < dim; y++) {
            for (int z = 0; z < dim; z++) {
                double error = Math.abs((orig[index] - data[index] / dimCubed));
                if (error > maxError) {
                    maxError = error;
                }
                rmse += error * error;
                index++;
            }
            index += 2;
        }
    }
    rmse /= dimCubed;
    rmse = Math.sqrt(rmse);
    logger.info(String.format("Parallel RMSE:   %12.10f, Max: %12.10f", rmse, maxError));

    for (int i = 0; i < reps; i++) {
        System.arraycopy(origf, 0, dataf, 0, dimCubed2);
        long time = System.nanoTime();
        real3DCUDA.convolution(dataf);
        time = (System.nanoTime() - time);
        System.out.println(String.format("%2d CUDA:     %8.3f", i + 1, toSeconds * time));
        if (time < clTime) {
            clTime = time;
        }
    }
    real3DCUDA.free();
    real3DCUDA = null;

    maxError = Double.MIN_VALUE;
    double avg = 0.0;
    rmse = 0.0;
    index = 0;
    for (int x = 0; x < dim; x++) {
        for (int y = 0; y < dim; y++) {
            for (int z = 0; z < dim; z++) {
                if (Float.isNaN(dataf[index])) {
                    logger.info(String.format("Not a number %d %d %d", x, y, z));
                    System.exit(-1);
                }
                double error = Math.abs(origf[index] - dataf[index]);
                avg += error;
                if (error > maxError) {
                    maxError = error;
                }
                rmse += error * error;
                index++;
            }
            index += 2;
        }
    }
    rmse /= dimCubed;
    avg /= dimCubed;
    rmse = Math.sqrt(rmse);
    logger.info(String.format("CUDA RMSE:   %12.10f, Max: %12.10f, Avg: %12.10f", rmse, maxError, avg));

    System.out.println(String.format("Best Sequential Time:  %8.3f", toSeconds * seqTime));
    System.out.println(String.format("Best Parallel Time:    %8.3f", toSeconds * parTime));
    System.out.println(String.format("Best CUDA Time:        %8.3f", toSeconds * clTime));
    System.out.println(String.format("Parallel Speedup: %15.5f", (double) seqTime / parTime));
    System.out.println(String.format("CUDA Speedup:     %15.5f", (double) seqTime / clTime));
}

---

From source file:com.doctor.ganymed_ssh2.SSHAgent.java

/**
 * Why can't I execute several commands in one single session?
 * /*from   w w w . j  a va  2s.c  om*/
 * If you use Session.execCommand(), then you indeed can only execute only one command per session. This is not a restriction of the library, but rather an enforcement by the underlying SSH-2 protocol (a Session object models the underlying SSH-2 session).
 * 
 * There are several solutions:
 * 
 * Simple: Execute several commands in one batch, e.g., something like Session.execCommand("echo Hello && echo again").
 * Simple: The intended way: simply open a new session for each command - once you have opened a connection, you can ask for as many sessions as you want, they are only a "virtual" construct.
 * Advanced: Don't use Session.execCommand(), but rather aquire a shell with Session.startShell().
 * 
 * @param command
 * @return
 * @throws IOException
 */

public String execCommand(String command) throws IOException {
    Session session = connection.openSession();
    session.execCommand(command, StandardCharsets.UTF_8.toString());
    InputStream streamGobbler = new StreamGobbler(session.getStdout());

    String result = IOUtils.toString(streamGobbler, StandardCharsets.UTF_8);

    session.waitForCondition(ChannelCondition.EXIT_SIGNAL, Long.MAX_VALUE);

    if (session.getExitStatus().intValue() == 0) {
        log.info("execCommand: {} success ", command);
    } else {
        log.error("execCommand : {} fail", command);
    }

    IOUtils.closeQuietly(streamGobbler);
    session.close();
    return result;
}

---

From source file:info.archinnov.achilles.it.TestTypedQueries.java

@Test
public void should_perform_prepared_typed_query() throws Exception {
    //Given//  ww w.  j a  va 2  s  . c om
    final Long id = RandomUtils.nextLong(0L, Long.MAX_VALUE);
    scriptExecutor.executeScriptTemplate("SimpleEntity/insert_single_row.cql",
            ImmutableMap.of("id", id, "table", "simple"));

    final PreparedStatement preparedStatement = session.prepare("SELECT * FROM simple WHERE id = :id");

    //When
    final SimpleEntity actual = manager.query().typedQueryForSelect(preparedStatement, id).getOne();

    //Then
    assertThat(actual).isNotNull();
    assertThat(actual.getValue()).contains("0 AM");
}

---

From source file:com.axibase.tsd.TestUtil.java

public static GetPropertiesQuery buildPropertiesQuery() {
    GetPropertiesQuery query = new GetPropertiesQuery(TTT_TYPE, TTT_ENTITY);
    query.setStartTime(0);//from   w w w  . ja v  a 2  s  . c  om
    query.setEndTime(Long.MAX_VALUE);
    query.setKey(AtsdUtil.toMap("key1", "ttt-key-1"));
    return query;
}

---

From source file:com.twitter.hraven.datasource.TestHdfsStatsService.java

@Test
public void TestGetLastHourInvertedTimestamp() throws IOException {
    long ts = 1391896800L;
    long expectedTop = Long.MAX_VALUE - ts;
    long actualTop = HdfsStatsService.getEncodedRunId(ts);
    assertEquals(actualTop, expectedTop);
}

---

From source file:com.hpcloud.util.Duration.java

private Duration(long length, TimeUnit timeUnit) {
    this.length = length;
    this.timeUnit = Preconditions.checkNotNull(timeUnit);
    finite = length == Long.MAX_VALUE && TimeUnit.DAYS.equals(timeUnit) ? false : true;
}

---

From source file:io.fabric8.insight.log.service.LogQuery.java

public LogResults getLogEventList(int count, Predicate<PaxLoggingEvent> predicate) {
    LogResults answer = new LogResults();
    answer.setHost(getHostName());/*from  w  ww  .  j ava 2s  .  c  o  m*/

    long from = Long.MAX_VALUE;
    long to = Long.MIN_VALUE;
    if (appender != null) {
        LruList events = appender.getEvents();
        if (events != null) {
            Iterable<PaxLoggingEvent> iterable = events.getElements();
            if (iterable != null) {
                int matched = 0;
                for (PaxLoggingEvent event : iterable) {
                    if (event != null) {
                        long timestamp = event.getTimeStamp();
                        if (timestamp > to) {
                            to = timestamp;
                        }
                        if (timestamp < from) {
                            from = timestamp;
                        }
                        if (predicate == null || predicate.matches(event)) {
                            answer.addEvent(Logs.newInstance(event));
                            matched += 1;
                            if (count > 0 && matched >= count) {
                                break;
                            }
                        }
                    }
                }
            }
        }
    } else {
        LOG.warn("No VmLogAppender available!");
    }
    answer.setFromTimestamp(from);
    answer.setToTimestamp(to);
    return answer;
}

---

From source file:com.ewcms.plugin.crawler.generate.robotstxt.RobotstxtServer.java

private HostDirectives fetchDirectives(String host) {
    WebURL robotsTxtUrl = new WebURL();
    robotsTxtUrl.setURL("http://" + host + "/robots.txt");
    HostDirectives directives = null;// ww w .ja  va2 s  . co  m
    PageFetchResult fetchResult = null;
    try {
        fetchResult = pageFetcher.fetchHeader(robotsTxtUrl);
        if (fetchResult.getStatusCode() == HttpStatus.SC_OK) {
            Page page = new Page(robotsTxtUrl);
            fetchResult.fetchContent(page);
            if (Util.hasPlainTextContent(page.getContentType())) {
                try {
                    String content;
                    if (page.getContentCharset() == null) {
                        content = new String(page.getContentData());
                    } else {
                        content = new String(page.getContentData(), page.getContentCharset());
                    }
                    directives = RobotstxtParser.parse(content, config.getUserAgentName());
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
    } finally {
        fetchResult.discardContentIfNotConsumed();
    }
    if (directives == null) {
        // We still need to have this object to keep track of the time we
        // fetched it
        directives = new HostDirectives();
    }
    synchronized (host2directivesCache) {
        if (host2directivesCache.size() == config.getCacheSize()) {
            String minHost = null;
            long minAccessTime = Long.MAX_VALUE;
            for (Entry<String, HostDirectives> entry : host2directivesCache.entrySet()) {
                if (entry.getValue().getLastAccessTime() < minAccessTime) {
                    minAccessTime = entry.getValue().getLastAccessTime();
                    minHost = entry.getKey();
                }
            }
            host2directivesCache.remove(minHost);
        }
        host2directivesCache.put(host, directives);
    }
    return directives;
}

---

From source file:info.archinnov.achilles.it.TestMultiClusteringEntityIT.java

@Test
public void should_update_with_IN_clause_on_first_clustering() throws Exception {
    final long id = RandomUtils.nextLong(0, Long.MAX_VALUE);
    scriptExecutor.executeScriptTemplate("MultiClusteringEntity/insertRows.cql", ImmutableMap.of("id", id));

    //When//from w w w .  java2  s. co m
    manager.dsl().update().fromBaseTable().value().Set("new val").where().id().Eq(id).c1().IN(1, 3).c2().Eq(1)
            .execute();

    //Then
    final List<Row> all = session
            .execute("SELECT value FROM achilles_embedded.multi_clustering_entity WHERE id = " + id
                    + " AND c1 IN(1,3) AND c2=1")
            .all();

    assertThat(all).hasSize(2);
    assertThat(all.stream().map(x -> x.getString("value")).collect(Collectors.toList()))
            .containsExactly("new val", "new val");
}

---

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