Examples with DefaultChocoScheduler org.btrplace.scheduler.choco.DefaultChocoScheduler used on opensource projects

Example 51 with DefaultChocoScheduler

use of org.btrplace.scheduler.choco.DefaultChocoScheduler in project scheduler by btrplace.

the class DefaultTestCampaign method test.

@Override
public TestCaseResult test(TestCase tc) {
    VerifierResult res = oracle.verify(tc);
    DefaultChocoScheduler sched = new DefaultChocoScheduler(params);
    try {
        ReconfigurationPlan plan = sched.solve(tc.instance());
        checkConsistency(plan, tc);
    } catch (RuntimeException e) {
        // A runtime exception is a CRASH. Should not happen
        return new TestCaseResult(tc, e, res);
    }
    return new TestCaseResult(tc, sched.getStatistics(), res);
}

Example 52 with DefaultChocoScheduler

use of org.btrplace.scheduler.choco.DefaultChocoScheduler in project scheduler by btrplace.

the class FixedSizePartitioningTest method basicTesting.

@Test
public void basicTesting() {
    FixedSizePartitioning f = new FixedSizePartitioning(1000);
    f.setWorkersCount(5);
    Assert.assertEquals(f.getWorkersCount(), 5);
    Assert.assertEquals(f.getSize(), 1000);
    ChocoScheduler cra = new DefaultChocoScheduler();
    cra.setInstanceSolver(f);
    Assert.assertEquals(cra.getInstanceSolver(), f);
    f.setSize(300);
    Assert.assertEquals(f.getSize(), 300);
    Assert.assertEquals(f.randomPickUp(), false);
}

Example 53 with DefaultChocoScheduler

use of org.btrplace.scheduler.choco.DefaultChocoScheduler in project scheduler by btrplace.

the class StaticPartitioningTest method testParallelSolve.

@Test
public void testParallelSolve() throws SchedulerException {
    SynchronizedElementBuilder eb = new SynchronizedElementBuilder(new DefaultElementBuilder());
    Model origin = new DefaultModel(eb);
    Node n1 = origin.newNode();
    Node n2 = origin.newNode();
    VM vm1 = origin.newVM();
    VM vm2 = origin.newVM();
    /*
         * 2 nodes among 2 instances, 2 VMs to boot on the nodes
         */
    origin.getMapping().addOnlineNode(n1);
    origin.getMapping().addOfflineNode(n2);
    origin.getMapping().addReadyVM(vm1);
    origin.getMapping().addReadyVM(vm2);
    Model s1 = new SubModel(origin, eb, Collections.singletonList(n1), Collections.singleton(vm1));
    Model s2 = new SubModel(origin, eb, Collections.singletonList(n2), Collections.singleton(vm2));
    Instance i0 = new Instance(origin, new MinMTTR());
    final Instance i1 = new Instance(s1, Running.newRunning(Collections.singletonList(vm1)), new MinMTTR());
    final Instance i2 = new Instance(s2, new MinMTTR());
    i2.getSatConstraints().add(new Running(vm2));
    StaticPartitioning st = new StaticPartitioning() {

        @Override
        public List<Instance> split(Parameters ps, Instance i) throws SchedulerException {
            return Arrays.asList(i1, i2);
        }
    };
    Parameters p = new DefaultChocoScheduler();
    ReconfigurationPlan plan = st.solve(p, i0);
    Assert.assertNotNull(plan);
    Model dst = plan.getResult();
    Assert.assertEquals(dst.getMapping().getOnlineNodes().size(), 2);
    Assert.assertEquals(dst.getMapping().getRunningVMs().size(), 2);
    // Now, there is no solution for i2. the resulting plan should be null
    i2.getSatConstraints().addAll(Offline.newOffline(Collections.singletonList(n2)));
    plan = st.solve(p, i0);
    Assert.assertNull(plan);
    Assert.assertEquals(st.getStatistics().getSolutions().size(), 0);
}

Example 54 with DefaultChocoScheduler

use of org.btrplace.scheduler.choco.DefaultChocoScheduler in project scheduler by btrplace.

the class CNetworkTest method defaultTest.

/**
 * Test the instantiation and the creation of the variables.
 *
 * @throws org.btrplace.scheduler.SchedulerException if an error occurs during the solving process (it should not)
 */
@Test
public void defaultTest() throws SchedulerException {
    // New default model
    Model mo = new DefaultModel();
    Mapping ma = mo.getMapping();
    // Create and boot 1 source and 1 destination node
    Node srcNode = mo.newNode(), dstNode = mo.newNode();
    ma.addOnlineNode(srcNode);
    ma.addOnlineNode(dstNode);
    // Attach a network view
    Network net = new Network();
    mo.attach(net);
    // Connect the nodes through a main non-blocking switch using 1 Gbit/s links
    Switch swMain = net.newSwitch();
    int bw = 1000;
    net.connect(bw, swMain, srcNode, dstNode);
    // Create and host 1 running VM on the source node
    VM vm = mo.newVM();
    ma.addRunningVM(vm, srcNode);
    // The VM consumes 6 GiB memory and has a memory intensive workload equivalent to "stress --vm 1000 --bytes 50K"
    int memUsed = 6000, hotDirtySize = 46, hotDirtyDuration = 2;
    double coldDirtyRate = 23.6;
    // 6 GiB
    mo.getAttributes().put(vm, "memUsed", memUsed);
    // 46 MiB
    mo.getAttributes().put(vm, "hotDirtySize", hotDirtySize);
    // 2 sec.
    mo.getAttributes().put(vm, "hotDirtyDuration", hotDirtyDuration);
    // 23.6 MiB/sec.
    mo.getAttributes().put(vm, "coldDirtyRate", coldDirtyRate);
    // Add constraints
    List<SatConstraint> cstrs = new ArrayList<>();
    // We force the migration to go on the destination node
    cstrs.add(new Fence(vm, Collections.singleton(dstNode)));
    // Try to solve using the custom Min MTTR objective for migration scheduling
    ReconfigurationPlan p = new DefaultChocoScheduler().solve(mo, cstrs, new MinMTTRMig());
    Assert.assertNotNull(p);
    // The switch is non-blocking
    Assert.assertEquals(swMain.getCapacity(), Integer.MAX_VALUE);
    // Check the migration path and bandwidth
    MigrateVM mig = (MigrateVM) p.getActions().stream().filter(s -> s instanceof MigrateVM).findFirst().get();
    Assert.assertTrue(net.getRouting().getPath(mig.getSourceNode(), mig.getDestinationNode()).containsAll(net.getLinks()));
    Assert.assertEquals(net.getRouting().getMaxBW(mig.getSourceNode(), mig.getDestinationNode()), bw);
    Assert.assertEquals(mig.getBandwidth(), bw);
    // Check the migration duration computation
    double bandwidth_octet = mig.getBandwidth() / 9, durationMin, durationColdPages, durationHotPages, durationTotal;
    durationMin = memUsed / bandwidth_octet;
    durationColdPages = ((hotDirtySize + ((durationMin - hotDirtyDuration) * coldDirtyRate)) / (bandwidth_octet - coldDirtyRate));
    durationHotPages = ((hotDirtySize / bandwidth_octet) * ((hotDirtySize / hotDirtyDuration) / (bandwidth_octet - (hotDirtySize / hotDirtyDuration))));
    durationTotal = durationMin + durationColdPages + durationHotPages;
    Assert.assertEquals((mig.getEnd() - mig.getStart()), (int) Math.round(durationTotal));
}

Example 55 with DefaultChocoScheduler

use of org.btrplace.scheduler.choco.DefaultChocoScheduler in project scheduler by btrplace.

the class CNetworkTest method testWithSwitchCapacity.

@Test
public void testWithSwitchCapacity() {
    Model mo = new DefaultModel();
    Node n1 = mo.newNode();
    Node n2 = mo.newNode();
    VM v = mo.newVM();
    mo.getMapping().on(n1, n2).run(n1, v);
    ShareableResource mem = new ShareableResource("mem", 10000, 5000);
    Network net = new Network();
    mo.attach(net);
    mo.attach(mem);
    mo.getAttributes().put(v, "memUsed", 10000);
    Switch sw = net.newSwitch(1000);
    net.connect(2000, sw, n1, n2);
    ChocoScheduler s = new DefaultChocoScheduler();
    ReconfigurationPlan p = s.solve(mo, Collections.singletonList(new Fence(v, n2)));
    Assert.assertNotNull(p);
}