Examples with OptConstraint org.btrplace.model.constraint.OptConstraint used on opensource projects

Example 1 with OptConstraint

use of org.btrplace.model.constraint.OptConstraint in project scheduler by btrplace.

the class IssuesTest method testIssue89.

@Test
public static void testIssue89() throws Exception {
    final Model model = new DefaultModel();
    final Mapping mapping = model.getMapping();
    final Node node0 = model.newNode(0);
    final int[] ids0 = { 1, 45, 43, 40, 39, 38, 82, 80, 79, 78, 30, 75, 18, 16, 15, 14, 60, 9, 55, 54, 50, 48 };
    final Node node1 = model.newNode(1);
    final int[] ids1 = { 84, 83, 81, 77, 73, 71, 64, 63, 62, 57, 53, 52, 47, 46, 44, 41, 34, 31, 28, 25, 13, 8, 6, 4, 3, 0 };
    final Node node2 = model.newNode(2);
    final int[] ids2 = { 21, 67, 42, 36, 35, 33, 76, 74, 23, 69, 68, 20, 61, 12, 11, 10, 5, 51 };
    final Node node3 = model.newNode(3);
    final int[] ids3 = { 2, 66, 86, 85, 37, 32, 29, 27, 26, 72, 24, 70, 22, 19, 65, 17, 59, 58, 56, 7, 49 };
    final ShareableResource cpu = new ShareableResource("cpu", 45, 1);
    final ShareableResource mem = new ShareableResource("mem", 90, 2);
    populateNodeVm(model, mapping, node0, ids0);
    populateNodeVm(model, mapping, node1, ids1);
    populateNodeVm(model, mapping, node2, ids2);
    populateNodeVm(model, mapping, node3, ids3);
    model.attach(cpu);
    model.attach(mem);
    final Collection<SatConstraint> satConstraints = new ArrayList<>();
    // We want to cause Node 3 to go offline to see how the VMs hosted on that
    // node will get rebalanced.
    satConstraints.add(new Offline(node3));
    final OptConstraint optConstraint = new MinMTTR();
    DefaultChocoScheduler scheduler = new DefaultChocoScheduler();
    scheduler.doOptimize(false);
    scheduler.doRepair(true);
    scheduler.setTimeLimit(60000);
    ReconfigurationPlan plan = scheduler.solve(model, satConstraints, optConstraint);
    System.out.println(scheduler.getStatistics());
    Assert.assertTrue(plan.isApplyable());
    satConstraints.clear();
    // This is somewhat similar to making Node 3 going offline by ensuring that
    // all VMs can no longer get hosted on that node.
    satConstraints.addAll(mapping.getAllVMs().stream().map(vm -> new Ban(vm, Collections.singletonList(node3))).collect(Collectors.toList()));
    scheduler = new DefaultChocoScheduler();
    scheduler.doOptimize(false);
    scheduler.doRepair(true);
    plan = scheduler.solve(model, satConstraints, optConstraint);
    Assert.assertTrue(plan.isApplyable());
}

Example 2 with OptConstraint

use of org.btrplace.model.constraint.OptConstraint in project scheduler by btrplace.

the class CMinMigrationsTest method main.

public static void main(String[] args) {
    String root = "/Users/fabien.hermenier/Documents/BtrPlace/nutanix/instances";
    List<OptConstraint> objs = Arrays.asList(/*new MinMTTR(),*/
    new MinMigrations());
    boolean verbose = true;
    for (OptConstraint o : objs) {
        System.out.print(" " + o);
    }
    System.out.println();
    for (int idx = 1; idx <= 256; idx += 5) {
        String path = root + "/lazan/lazan-" + idx + ".json.gz";
        if (verbose) {
            System.out.println("--- " + idx + " --- ");
        } else {
            System.out.print(idx);
        }
        List<Long> res = new ArrayList<>();
        for (OptConstraint o : objs) {
            if (verbose) {
                System.out.println("\t" + o);
            }
            Instance i = JSON.readInstance(new File(path));
            if (Network.get(i.getModel()) != null) {
                i.getModel().detach(Network.get(i.getModel()));
            }
            i = new Instance(i.getModel(), i.getSatConstraints(), o);
            ChocoScheduler s = new DefaultChocoScheduler();
            s.doOptimize(false);
            s.setTimeLimit(30);
            s.doRepair(false);
            ReconfigurationPlan p = s.solve(i);
            Assert.assertNotNull(p);
            res.add(p.getActions().stream().filter(x -> x instanceof MigrateVM).mapToLong(x -> x.getEnd() - x.getStart()).sum());
            // res.add((long)s.getStatistics().lastSolution().getDuration());
            if (verbose) {
                System.out.println(s.getStatistics());
            // System.out.println(p);
            }
        }
        if (!verbose) {
            for (Long l : res) {
                System.out.print("\t" + l);
            }
            System.out.println();
        }
    }
}