Examples with TaskScheduler org.btrplace.scheduler.choco.extensions.TaskScheduler used on opensource projects

Example 1 with TaskScheduler

use of org.btrplace.scheduler.choco.extensions.TaskScheduler in project scheduler by btrplace.

the class DefaultCumulatives method beforeSolve.

/**
 * Build the constraint.
 *
 * @return the resulting constraint
 */
@Override
@SuppressWarnings("squid:S3346")
public boolean beforeSolve(ReconfigurationProblem rp) {
    super.beforeSolve(rp);
    if (rp.getSourceModel().getMapping().getNbNodes() == 0 || capacities.isEmpty()) {
        return true;
    }
    int nbDims = capacities.size();
    int nbRes = capacities.get(0).size();
    // We get the UB of the node capacity and the LB for the VM usage.
    int[][] capas = new int[nbRes][nbDims];
    int d = 0;
    for (List<IntVar> capaDim : capacities) {
        assert capaDim.size() == nbRes;
        for (int j = 0; j < capaDim.size(); j++) {
            capas[j][d] = capaDim.get(j).getUB();
        }
        d++;
    }
    assert cUsages.size() == nbDims;
    int nbCHosts = cUsages.get(0).length;
    int[][] cUses = new int[nbCHosts][nbDims];
    d = 0;
    for (int[] cUseDim : cUsages) {
        assert cUseDim.length == nbCHosts;
        for (int i = 0; i < nbCHosts; i++) {
            cUses[i][d] = cUseDim[i];
        }
        d++;
    }
    assert dUsages.size() == nbDims;
    int nbDHosts = dUsages.get(0).length;
    int[][] dUses = new int[nbDHosts][nbDims];
    d = 0;
    for (IntVar[] dUseDim : dUsages) {
        assert dUseDim.length == nbDHosts;
        for (int j = 0; j < nbDHosts; j++) {
            dUses[j][d] = dUseDim[j].getLB();
        }
        d++;
    }
    symmetryBreakingForStayingVMs(rp);
    IntVar[] earlyStarts = rp.getNodeActions().stream().map(NodeTransition::getHostingStart).toArray(IntVar[]::new);
    IntVar[] lastEnd = rp.getNodeActions().stream().map(NodeTransition::getHostingEnd).toArray(IntVar[]::new);
    rp.getModel().post(new TaskScheduler(earlyStarts, lastEnd, capas, cHosts, cUses, cEnds, dHosts, dUses, dStarts, associations));
    return true;
}