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

Example 11 with ReconfigurationProblem

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

the class ShutdownableNodeTest method testCascadedShutdown.

/**
 * The 2 nodes are set offline but n2 will consume being offline after n1
 *
 * @throws org.btrplace.scheduler.SchedulerException
 * @throws ContradictionException
 */
@Test
public void testCascadedShutdown() throws SchedulerException, ContradictionException {
    Model mo = new DefaultModel();
    Mapping map = mo.getMapping();
    Node n1 = mo.newNode();
    Node n2 = mo.newNode();
    map.addOnlineNode(n1);
    map.addOnlineNode(n2);
    Parameters ps = new DefaultParameters();
    DurationEvaluators dev = ps.getDurationEvaluators();
    dev.register(ShutdownVM.class, new ConstantActionDuration<>(2));
    dev.register(ShutdownNode.class, new ConstantActionDuration<>(5));
    ReconfigurationProblem rp = new DefaultReconfigurationProblemBuilder(mo).setParams(ps).build();
    ShutdownableNode ma1 = (ShutdownableNode) rp.getNodeAction(n1);
    ShutdownableNode ma2 = (ShutdownableNode) rp.getNodeAction(n2);
    ma1.getState().instantiateTo(0, Cause.Null);
    ma2.getState().instantiateTo(0, Cause.Null);
    rp.getModel().post(rp.getModel().arithm(ma2.getStart(), "=", ma1.getEnd()));
    ReconfigurationPlan p = rp.solve(0, false);
    Assert.assertNotNull(p);
    System.out.println(p);
    Assert.assertEquals(ma1.getStart().getValue(), 0);
    Assert.assertEquals(ma2.getStart().getValue(), ma1.getEnd().getValue());
    Model res = p.getResult();
    Assert.assertEquals(res.getMapping().getOfflineNodes().size(), 2);
}

Example 12 with ReconfigurationProblem

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

the class ShutdownableNodeTest method testSwitchState.

@Test
public void testSwitchState() throws ContradictionException, SchedulerException {
    Model mo = new DefaultModel();
    Mapping map = mo.getMapping();
    Node n1 = mo.newNode();
    Node n2 = mo.newNode();
    map.addOnlineNode(n1);
    map.addOfflineNode(n2);
    Parameters ps = new DefaultParameters();
    DurationEvaluators dev = ps.getDurationEvaluators();
    dev.register(BootNode.class, new ConstantActionDuration<>(2));
    dev.register(ShutdownNode.class, new ConstantActionDuration<>(5));
    ReconfigurationProblem rp = new DefaultReconfigurationProblemBuilder(mo).setParams(ps).build();
    ShutdownableNode ma1 = (ShutdownableNode) rp.getNodeAction(n1);
    BootableNode ma2 = (BootableNode) rp.getNodeAction(n2);
    ma1.getState().instantiateTo(0, Cause.Null);
    ma2.getState().instantiateTo(1, Cause.Null);
    rp.getModel().post(rp.getModel().arithm(ma1.getEnd(), "=", ma2.getStart()));
    ReconfigurationPlan p = rp.solve(0, false);
    // ChocoLogging.flushLogs();
    Assert.assertNotNull(p);
    System.out.println(p);
    System.out.flush();
}

Example 13 with ReconfigurationProblem

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

the class ShutdownableNodeTest method testActionDurationSimple.

@Test
public void testActionDurationSimple() throws SchedulerException, ContradictionException {
    Model model = new DefaultModel();
    Mapping map = model.getMapping();
    Node n1 = model.newNode();
    Node n4 = model.newNode();
    map.addOnlineNode(n1);
    map.addOfflineNode(n4);
    Parameters ps = new DefaultParameters();
    DurationEvaluators dev = ps.getDurationEvaluators();
    dev.register(ShutdownNode.class, new ConstantActionDuration<>(5));
    dev.register(BootNode.class, new ConstantActionDuration<>(3));
    ReconfigurationProblem rp = new DefaultReconfigurationProblemBuilder(model).setParams(ps).build();
    ShutdownableNode sn1 = (ShutdownableNode) rp.getNodeAction(n1);
    sn1.getState().instantiateTo(0, Cause.Null);
    BootableNode bn4 = (BootableNode) rp.getNodeAction(n4);
    bn4.getState().instantiateTo(0, Cause.Null);
    ReconfigurationPlan p = rp.solve(0, false);
    Assert.assertNotNull(p);
    System.out.println(p);
    Assert.assertEquals(rp.getStart().getValue(), 0);
    Assert.assertEquals(bn4.getStart().getValue(), 0);
    Assert.assertEquals(bn4.getDuration().getValue(), 0);
    Assert.assertEquals(bn4.getEnd().getValue(), 0);
    Assert.assertEquals(bn4.getHostingStart().getValue(), 0);
    Assert.assertEquals(bn4.getHostingEnd().getValue(), 0);
    Assert.assertEquals(p.getSize(), 1);
    Model res = p.getResult();
    Assert.assertTrue(res.getMapping().getOfflineNodes().contains(n1));
    Assert.assertTrue(res.getMapping().getOfflineNodes().contains(n4));
}

Example 14 with ReconfigurationProblem

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

the class ShutdownableNodeTest method testForcedOffline.

@Test
public void testForcedOffline() throws SchedulerException, ContradictionException {
    Model mo = new DefaultModel();
    Mapping map = mo.getMapping();
    Node n1 = mo.newNode();
    map.addOnlineNode(n1);
    Parameters ps = new DefaultParameters();
    DurationEvaluators dev = ps.getDurationEvaluators();
    dev.register(ShutdownNode.class, new ConstantActionDuration<>(5));
    ReconfigurationProblem rp = new DefaultReconfigurationProblemBuilder(mo).setParams(ps).build();
    ShutdownableNode ma = (ShutdownableNode) rp.getNodeAction(n1);
    ma.getState().instantiateTo(0, Cause.Null);
    ReconfigurationPlan p = rp.solve(0, false);
    Assert.assertNotNull(p);
    Assert.assertEquals(ma.getDuration().getValue(), 5);
    Assert.assertEquals(ma.getStart().getValue(), 0);
    Assert.assertEquals(ma.getEnd().getValue(), 5);
    Assert.assertEquals(ma.getHostingStart().getValue(), 0);
    Assert.assertEquals(ma.getHostingEnd().getValue(), 0);
    Assert.assertEquals(p.getSize(), 1);
    Model res = p.getResult();
    Assert.assertTrue(res.getMapping().getOfflineNodes().contains(n1));
}

Example 15 with ReconfigurationProblem

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

the class SuspendVMTest method testSuspendSequences.

/**
 * Test that check that the action duration is lesser than
 * the cSlice duration. This allows actions scheduling
 * In practice, for this test, 2 suspend actions have to be executed sequentially
 */
@Test
public void testSuspendSequences() throws SchedulerException, ContradictionException {
    Model mo = new DefaultModel();
    VM vm1 = mo.newVM();
    VM vm2 = mo.newVM();
    Node n1 = mo.newNode();
    Mapping map = mo.getMapping();
    map.addOnlineNode(n1);
    map.addRunningVM(vm1, n1);
    map.addRunningVM(vm2, n1);
    Parameters ps = new DefaultParameters();
    DurationEvaluators dev = ps.getDurationEvaluators();
    dev.register(org.btrplace.plan.event.SuspendVM.class, new ConstantActionDuration<>(5));
    ReconfigurationProblem rp = new DefaultReconfigurationProblemBuilder(mo).setParams(ps).setNextVMsStates(new HashSet<>(), new HashSet<>(), map.getAllVMs(), new HashSet<>()).build();
    SuspendVM m1 = (SuspendVM) rp.getVMActions().get(rp.getVM(vm1));
    SuspendVM m2 = (SuspendVM) rp.getVMActions().get(rp.getVM(vm2));
    rp.getNodeActions().get(0).getState().instantiateTo(1, Cause.Null);
    org.chocosolver.solver.Model csp = rp.getModel();
    csp.post(csp.arithm(m2.getStart(), ">=", m1.getEnd()));
    new CMinMTTR().inject(ps, rp);
    ReconfigurationPlan p = rp.solve(0, false);
    Assert.assertNotNull(p);
    Iterator<Action> ite = p.iterator();
    org.btrplace.plan.event.SuspendVM b1 = (org.btrplace.plan.event.SuspendVM) ite.next();
    org.btrplace.plan.event.SuspendVM b2 = (org.btrplace.plan.event.SuspendVM) ite.next();
    Assert.assertEquals(vm1, b1.getVM());
    Assert.assertEquals(vm2, b2.getVM());
    Assert.assertTrue(b1.getEnd() <= b2.getStart());
    Assert.assertEquals(5, b1.getEnd() - b1.getStart());
    Assert.assertEquals(5, b2.getEnd() - b2.getStart());
}