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

Example 11 with Instance

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

the class InstanceConverter method fromJSON.

@Override
public Instance fromJSON(JSONObject in) throws JSONConverterException {
    checkKeys(in, MODEL_LABEL, CONSTRAINTS_LABEL, OBJ_LABEL);
    Model mo = moc.fromJSON((JSONObject) in.get(MODEL_LABEL));
    return new Instance(mo, cc.listFromJSON(mo, (JSONArray) in.get(CONSTRAINTS_LABEL)), (OptConstraint) cc.fromJSON(mo, (JSONObject) in.get(OBJ_LABEL)));
}

Example 12 with Instance

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

the class Instances method makeVMIndex.

/**
 * Make an index revealing the position of each VM in a collection
 * of disjoint instances
 *
 * @param instances the collection to browse. Instances are supposed to be disjoint
 * @return the index of every VM. Format {@code VM#id() -> position}
 */
public static TIntIntHashMap makeVMIndex(Collection<Instance> instances) {
    TIntIntHashMap index = new TIntIntHashMap();
    int p = 0;
    for (Instance i : instances) {
        Mapping m = i.getModel().getMapping();
        for (Node n : m.getOnlineNodes()) {
            for (VM v : m.getRunningVMs(n)) {
                index.put(v.id(), p);
            }
            for (VM v : m.getSleepingVMs(n)) {
                index.put(v.id(), p);
            }
        }
        for (VM v : m.getReadyVMs()) {
            index.put(v.id(), p);
        }
        p++;
    }
    return index;
}

Example 13 with Instance

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

the class Instances method makeNodeIndex.

/**
 * Make an index revealing the position of each node in a collection
 * of disjoint instances
 *
 * @param instances the collection to browse. Instances are supposed to be disjoint
 * @return the index of every node. Format {@code Node#id() -> position}
 */
public static TIntIntHashMap makeNodeIndex(Collection<Instance> instances) {
    TIntIntHashMap index = new TIntIntHashMap();
    int p = 0;
    for (Instance i : instances) {
        Mapping m = i.getModel().getMapping();
        for (Node n : m.getOfflineNodes()) {
            index.put(n.id(), p);
        }
        for (Node n : m.getOnlineNodes()) {
            index.put(n.id(), p);
        }
        p++;
    }
    return index;
}

Example 14 with Instance

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

the class StaticPartitioning method solve.

@Override
public ReconfigurationPlan solve(Parameters cra, Instance orig) throws SchedulerException {
    stats = new StaticPartitioningStatistics(cra, orig, System.currentTimeMillis(), workersCount);
    long d = -System.currentTimeMillis();
    List<Instance> partitions = split(cra, orig);
    d += System.currentTimeMillis();
    stats.setSplittingStatistics(partitions.size(), d);
    ExecutorService exe = Executors.newFixedThreadPool(this.workersCount);
    CompletionService<SolvingStatistics> completionService = new ExecutorCompletionService<>(exe);
    List<SolvingStatistics> results = new ArrayList<>(partitions.size());
    long duration = -System.currentTimeMillis();
    for (Instance partition : partitions) {
        completionService.submit(new InstanceSolverRunner(cra, partition));
    }
    for (int i = 0; i < partitions.size(); i++) {
        try {
            results.add(completionService.take().get());
        } catch (ExecutionException ignore) {
            Throwable cause = ignore.getCause();
            if (cause != null) {
                throw new SplitException(null, cause.getMessage(), ignore);
            }
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            throw new SplitException(orig.getModel(), e.getMessage(), e);
        }
    }
    duration += System.currentTimeMillis();
    stats.setSolvingDuration(duration);
    exe.shutdown();
    return merge(orig, results);
}

Example 15 with Instance

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

the class CMinMigrationsTest method testWithFreeNodes.

/**
 * Issue #137.
 * ShutdownableNode.isOnline() is not instantiated at the end of the problem
 */
@Test
public void testWithFreeNodes() {
    Model mo = new DefaultModel();
    Node n0 = mo.newNode();
    Node n1 = mo.newNode();
    Node n2 = mo.newNode();
    VM v1 = mo.newVM();
    VM v2 = mo.newVM();
    DefaultChocoScheduler s = new DefaultChocoScheduler();
    mo.getMapping().on(n0, n1, n2).run(n0, v1, v2);
    Instance i = new Instance(mo, Arrays.asList(new Spread(mo.getMapping().getAllVMs(), false)), new MinMigrations());
    ReconfigurationPlan p = s.solve(i);
    Assert.assertNotNull(p);
}