Examples with Mapping org.btrplace.model.Mapping used on opensource projects

Example 6 with Mapping

use of org.btrplace.model.Mapping in project scheduler by btrplace.

the class DefaultReconfigurationProblemTest method testManageableVMs.

@Test
public void testManageableVMs() throws SchedulerException {
    Model mo = new DefaultModel();
    VM vm1 = mo.newVM();
    VM vm2 = mo.newVM();
    VM vm3 = mo.newVM();
    VM vm4 = mo.newVM();
    VM vm5 = mo.newVM();
    VM vm6 = mo.newVM();
    Node n1 = mo.newNode();
    Node n2 = mo.newNode();
    Node n3 = mo.newNode();
    Mapping map = mo.getMapping();
    map.addOnlineNode(n1);
    map.addOnlineNode(n2);
    map.addOfflineNode(n3);
    map.addRunningVM(vm1, n1);
    map.addRunningVM(vm2, n1);
    map.addRunningVM(vm3, n2);
    map.addSleepingVM(vm4, n2);
    map.addReadyVM(vm5);
    map.addReadyVM(vm6);
    Set<VM> runnings = new HashSet<>(map.getRunningVMs());
    runnings.add(vm6);
    runnings.add(vm5);
    ReconfigurationProblem rp = new DefaultReconfigurationProblemBuilder(mo).setNextVMsStates(Collections.emptySet(), runnings, map.getSleepingVMs(), Collections.emptySet()).setManageableVMs(map.getRunningVMs(n1)).build();
    /*
          vm1: running -> running
          vm2: running-> running
          vm3: running -> running
          vm4: sleeping -> sleeping
          vm5: ready -> running
          vm6: ready -> running

         * manageable_runnings: vm1, vm2
         * manageable: vm1, vm2, vm5, vm6 (with ids: vm#0, vm#1, vm#4, vm#5)
         */
    Set<VM> manageable = rp.getManageableVMs();
    Assert.assertEquals(manageable.size(), 4, manageable.toString());
    Assert.assertTrue(manageable.containsAll(Arrays.asList(vm6, vm5, vm1, vm2)));
    // Check the action model that has been used for each of the VM.
    for (VM vm : map.getAllVMs()) {
        Assert.assertEquals(manageable.contains(vm), rp.getVMAction(vm).isManaged());
    }
}

Example 7 with Mapping

use of org.btrplace.model.Mapping in project scheduler by btrplace.

the class DefaultReconfigurationProblemTest method testVMToShutdown.

@Test
public void testVMToShutdown() throws SchedulerException {
    Model mo = new DefaultModel();
    VM vm1 = mo.newVM();
    VM vm2 = mo.newVM();
    VM vm3 = mo.newVM();
    VM vm4 = mo.newVM();
    VM vm5 = mo.newVM();
    VM vm6 = mo.newVM();
    Node n1 = mo.newNode();
    Node n2 = mo.newNode();
    Node n3 = mo.newNode();
    Mapping map = mo.getMapping();
    map.addOnlineNode(n1);
    map.addOnlineNode(n2);
    map.addOfflineNode(n3);
    map.addRunningVM(vm1, n1);
    map.addRunningVM(vm2, n1);
    map.addRunningVM(vm3, n2);
    map.addSleepingVM(vm4, n2);
    map.addReadyVM(vm5);
    map.addReadyVM(vm6);
    Mapping m = mo.getMapping();
    m.addOnlineNode(n1);
    m.addRunningVM(vm1, n1);
    DefaultReconfigurationProblem rp = new DefaultReconfigurationProblemBuilder(mo).setNextVMsStates(Collections.singleton(vm1), new HashSet<>(), new HashSet<>(), new HashSet<>()).build();
    VMTransition a = rp.getVMActions().get(0);
    Assert.assertEquals(a, rp.getVMAction(vm1));
    Assert.assertEquals(ShutdownVM.class, a.getClass());
}

Example 8 with Mapping

use of org.btrplace.model.Mapping in project scheduler by btrplace.

the class IssuesTest method testIssue10.

@Test
public void testIssue10() throws SchedulerException, ContradictionException {
    Model model = new DefaultModel();
    Node n1 = model.newNode();
    Node n2 = model.newNode();
    Node n3 = model.newNode();
    VM vm1 = model.newVM();
    VM vm2 = model.newVM();
    Mapping map = model.getMapping().on(n1, n2).off(n3).run(n1, vm1, vm2);
    // model.attach(resources);
    ReconfigurationProblem rp = new DefaultReconfigurationProblemBuilder(model).build();
    // n3 goes online
    rp.getNodeAction(n3).getState().instantiateTo(1, Cause.Null);
    rp.getModel().post(rp.getModel().arithm(rp.getEnd(), "<=", 10));
    int NUMBER_OF_NODE = map.getAllNodes().size();
    // Extract all the state of the involved nodes (all nodes in this case)
    List<IntVar> VMsOnAllNodes = rp.getNbRunningVMs();
    // Each element is the number of VMs on each node
    IntVar[] vmsOnInvolvedNodes = new IntVar[NUMBER_OF_NODE];
    BoolVar[] idles = new BoolVar[NUMBER_OF_NODE];
    int i = 0;
    int maxVMs = rp.getSourceModel().getMapping().getAllVMs().size();
    for (Node n : map.getAllNodes()) {
        vmsOnInvolvedNodes[i] = rp.getModel().intVar("nVMs" + n, -1, maxVMs, true);
        IntVar state = rp.getNodeAction(n).getState();
        // If the node is offline -> the temporary variable is 1, otherwise, it equals the number of VMs on that node
        Constraint elem = rp.getModel().element(vmsOnInvolvedNodes[i], new IntVar[] { rp.getModel().intVar(-1), VMsOnAllNodes.get(rp.getNode(n)) }, state, 0);
        rp.getModel().post(elem);
        // IF number of VMs on a node is 0 -> Idle
        idles[i] = rp.getModel().boolVar("idle" + n);
        ChocoUtils.postIfOnlyIf(rp, idles[i], rp.getModel().arithm(vmsOnInvolvedNodes[i], "=", 0));
        i++;
    }
    IntVar sum = rp.getModel().intVar("sum", 0, 1000, true);
    rp.getModel().post(rp.getModel().sum(idles, "=", sum));
    // idle should be less than Amount for MaxSN (0, in this case)
    rp.getModel().post(rp.getModel().arithm(sum, "=", 0));
    System.err.flush();
    CMinMTTR obj = new CMinMTTR();
    obj.inject(new DefaultParameters(), rp);
    ReconfigurationPlan plan = rp.solve(0, false);
    Assert.assertNotNull(plan);
}

Example 9 with Mapping

use of org.btrplace.model.Mapping in project scheduler by btrplace.

the class IssuesTest method testIssue5c.

/**
 * Test a suspicious bug in issue #5
 */
@Test
public void testIssue5c() throws SchedulerException {
    Model model = new DefaultModel();
    Node n1 = model.newNode();
    Node n2 = model.newNode();
    Node n3 = model.newNode();
    VM vm1 = model.newVM();
    VM vm2 = model.newVM();
    VM vm3 = model.newVM();
    VM vm4 = model.newVM();
    Mapping map = model.getMapping().on(n1, n2, n3).run(n2, vm1, vm2, vm3, vm4);
    ReconfigurationProblem rp = new DefaultReconfigurationProblemBuilder(model).build();
    List<IntVar> nodes_state = rp.getNbRunningVMs();
    IntVar[] nodeVM = new IntVar[map.getAllNodes().size()];
    int i = 0;
    for (Node n : map.getAllNodes()) {
        nodeVM[i++] = nodes_state.get(rp.getNode(n));
    // rp.getNodeAction(n).getState().setVal(1);
    }
    IntVar idle = rp.getModel().intVar("Nidles", 0, map.getAllNodes().size(), true);
    rp.getModel().post(rp.getModel().count(0, nodeVM, idle));
    rp.getModel().post(rp.getModel().arithm(idle, "<=", 1));
    ReconfigurationPlan plan = rp.solve(0, false);
    Assert.assertNotNull(plan);
}

Example 10 with Mapping

use of org.btrplace.model.Mapping 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());
}