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

Example 31 with VM

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

the class DefaultReconfigurationProblemTest method testVMStaySleeping.

@Test
public void testVMStaySleeping() throws SchedulerException {
    Model mo = new DefaultModel();
    VM vm1 = mo.newVM();
    Node n1 = mo.newNode();
    mo.getMapping().addOnlineNode(n1);
    mo.getMapping().addSleepingVM(vm1, n1);
    DefaultReconfigurationProblem rp = new DefaultReconfigurationProblemBuilder(mo).setNextVMsStates(new HashSet<>(), new HashSet<>(), Collections.singleton(vm1), new HashSet<>()).build();
    VMTransition a = rp.getVMActions().get(0);
    Assert.assertEquals(a, rp.getVMAction(vm1));
    Assert.assertEquals(StayAwayVM.class, a.getClass());
}

Example 32 with VM

use of org.btrplace.model.VM 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 33 with VM

use of org.btrplace.model.VM 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 34 with VM

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

the class IssuesTest method issue72b.

@Test
public void issue72b() throws SchedulerException {
    Model mo = new DefaultModel();
    Mapping ma = mo.getMapping();
    ShareableResource rcCPU = new ShareableResource("cpu", 2, 0);
    mo.attach(rcCPU);
    List<Node> nodes = new ArrayList<>();
    for (int i = 0; i < 2; i++) {
        nodes.add(mo.newNode());
        ma.addOnlineNode(nodes.get(i));
    }
    for (int i = 0; i < 1; i++) {
        VM v = mo.newVM();
        ma.addRunningVM(v, nodes.get(0));
    }
    for (int i = 0; i < 2; i++) {
        VM v = mo.newVM();
        ma.addRunningVM(v, nodes.get(1));
    }
    DefaultParameters ps = new DefaultParameters();
    ReconfigurationPlan p = new DefaultChocoScheduler(ps).solve(mo, new ArrayList<>());
    Assert.assertNotNull(p);
}

Example 35 with VM

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

the class IssuesTest method test16b.

/**
 * Unit test derived from Issue 16.
 *
 * @throws org.btrplace.scheduler.SchedulerException
 */
@Test
public void test16b() throws SchedulerException {
    Model model = new DefaultModel();
    Node n1 = model.newNode();
    Node n2 = model.newNode();
    Node n3 = model.newNode();
    Node n4 = model.newNode();
    VM vm1 = model.newVM();
    VM vm2 = model.newVM();
    VM vm3 = model.newVM();
    VM vm4 = model.newVM();
    VM vm5 = model.newVM();
    VM vm6 = model.newVM();
    model.getMapping().on(n1, n2, n3, n4).run(n1, vm1, vm2).run(n2, vm3, vm4).run(n3, vm5, vm6);
    Set<SatConstraint> ctrsC = new HashSet<>();
    Set<VM> vms1 = new HashSet<>(Arrays.asList(vm1, vm3, vm5));
    Set<VM> vms2 = new HashSet<>(Arrays.asList(vm2, vm4, vm6));
    ctrsC.add(new Spread(vms1));
    ctrsC.add(new Spread(vms2));
    ctrsC.add(new Fence(vm3, Collections.singleton(n1)));
    Offline off = new Offline(n2);
    ctrsC.add(off);
    ChocoScheduler cra = new DefaultChocoScheduler();
    ReconfigurationPlan dp = cra.solve(model, ctrsC);
    Assert.assertNotNull(dp);
}