Examples with Host gov.sandia.n2a.host.Host used on opensource projects

Example 6 with Host

use of gov.sandia.n2a.host.Host in project n2a by frothga.

the class PanelEquations method launchJob.

public void launchJob() {
    if (record == null)
        return;
    prepareForTabChange();
    String jobKey = new SimpleDateFormat("yyyy-MM-dd-HHmmss", Locale.ROOT).format(new Date());
    MDoc job = (MDoc) AppData.runs.childOrCreate(jobKey);
    NodeJob.collectJobParameters(root.source, record.key(), job);
    // Force directory (and job file) to exist, so Backends can work with the dir.
    job.save();
    NodeJob.saveSnapshot(record, job);
    MainTabbedPane mtp = (MainTabbedPane) MainFrame.instance.tabs;
    mtp.setPreferredFocus(PanelRun.instance, PanelRun.instance.tree);
    mtp.selectTab("Runs");
    NodeJob node = PanelRun.instance.addNewRun(job, true);
    // Hack to allow local jobs to bypass the wait-for-host queue.
    // It would be better for all jobs to check for resources before starting.
    // However, the time cost for the local check could be as long as the job itself
    // (for very simple models). There is some expectation that the user knows
    // the state of their own system when they choose to hit the play button.
    Backend backend = Backend.getBackend(job.get("backend"));
    String backendName = backend.getName().toLowerCase();
    Host h = Host.get(job);
    boolean internal = backend instanceof InternalBackend;
    boolean localhost = !(h instanceof Remote);
    boolean forbidden = h.config.get("backend", backendName).equals("0");
    if (// use of Internal overrides host selection
    internal || (localhost && !forbidden)) {
        // In case it was "internal" but not "localhost", set host to correct value.
        job.set("localhost", "host");
        backend.start(job);
        h.monitor(node);
        return;
    }
    Host.waitForHost(node);
}

Example 7 with Host

use of gov.sandia.n2a.host.Host in project n2a by frothga.

the class XyceBackend method start.

@Override
public void start(final MNode job) {
    Thread t = new Thread() {

        @Override
        public void run() {
            Path localJobDir = Host.getJobDir(Host.getLocalResourceDir(), job);
            Path errPath = localJobDir.resolve("err");
            try {
                err.set(new PrintStream(new FileOutputStream(errPath.toFile(), true), false, "UTF-8"));
            } catch (Exception e) {
            }
            try {
                Files.createFile(localJobDir.resolve("started"));
                MNode model = NodeJob.getModel(job);
                // set up job info
                Host env = Host.get(job);
                String xyce = env.config.getOrDefault("Xyce", "backend", "xyce", "path");
                // local or remote
                Path jobDir = Host.getJobDir(env.getResourceDir(), job);
                Path cirFile = jobDir.resolve("model.cir");
                // "prn" doesn't work, at least on Windows
                Path prnFile = jobDir.resolve("out");
                EquationSet digestedModel = new EquationSet(model);
                Simulator simulator = InternalBackend.constructStaticNetwork(digestedModel, null);
                analyze(digestedModel);
                String duration = digestedModel.metadata.getOrDefault("1.0", "duration");
                job.set(duration, "duration");
                long seed = digestedModel.metadata.getOrDefault(System.currentTimeMillis(), "seed");
                job.set(seed, "seed");
                MNode integrator = digestedModel.metadata.child("backend", "xyce", "integrator");
                job.set(integrator, "integrator");
                try (BufferedWriter writer = Files.newBufferedWriter(cirFile)) {
                    generateNetlist(job, simulator, writer);
                }
                PrintStream ps = Backend.err.get();
                if (ps != System.err) {
                    ps.close();
                    Backend.err.remove();
                    job.set(Host.size(errPath), "errSize");
                }
                env.submitJob(job, false, xyce, env.quote(cirFile), "-o", env.quote(prnFile));
            } catch (AbortRun a) {
            } catch (Exception e) {
                e.printStackTrace(Backend.err.get());
            }
            PrintStream ps = err.get();
            if (ps != System.err)
                ps.close();
        }
    };
    t.setDaemon(true);
    t.start();
}

Example 8 with Host

use of gov.sandia.n2a.host.Host in project n2a by frothga.

the class NodeJob method distribute.

/**
 *        Load job data in and decide which host thread should monitor it.
 */
public synchronized void distribute() {
    MNode source = getSource();
    if (// TODO: remove this conversion by 3/17/2022 (one-year sunset date)
    source.size() == 0) {
        // Convert old-format job directories to new format, which has separate "job" and "model" files.
        System.err.println("converting to new job format: " + source.key());
        Path jobDir = Host.getJobDir(Host.getLocalResourceDir(), source);
        MDoc model = new MDoc(jobDir.resolve("model"));
        collectJobParameters(model, model.get("$inherit"), source);
        String temp = model.get("$metadata", "pid");
        if (!temp.isEmpty())
            source.set(temp, "pid");
    }
    inherit = source.getOrDefault(key, "$inherit").split(",", 2)[0].replace("\"", "");
    setUserObject(inherit);
    // Lightweight evaluation of local "finished" file.
    // This slows down the initial load, but also makes the user more comfortable by showing
    // status as soon as possible on the first screenful of the Runs tab.
    Path localJobDir = Host.getJobDir(Host.getLocalResourceDir(), source);
    Path finished = localJobDir.resolve("finished");
    if (Files.exists(finished))
        checkFinished(finished);
    EventQueue.invokeLater(new Runnable() {

        public void run() {
            PanelRun panel = PanelRun.instance;
            panel.model.nodeChanged(NodeJob.this);
        }
    });
    Path started = localJobDir.resolve("started");
    if (Files.exists(started)) {
        dateStarted = new Date(Host.lastModified(started));
        Host env = Host.get(source);
        env.monitor(this);
    } else // Not started yet, so send to wait-for-host queue.
    {
        // However, only try to start jobs that still have enough info to actually run.
        // Sometimes a directory might be lingering from an incomplete delete,
        // so don't try to start a job in that case.
        Path model = localJobDir.resolve("model");
        if (Files.exists(model))
            Host.waitForHost(this);
    }
}

Example 9 with Host

use of gov.sandia.n2a.host.Host in project n2a by frothga.

the class NodeJob method build.

/**
 *        Construct the list of resources under this job node.
 *        This only called if this job node is actively monitored and open in the tree,
 *        or if this job node is about to be opened regardless of monitoring.
 *
 *        This function may make blocking remote calls, so should not run on the EDT.
 *        It queues changes and inserts an EDT event to apply them.
 */
public synchronized void build(JTree tree) {
    NodeBase selected = null;
    TreePath path = tree.getLeadSelectionPath();
    if (path != null)
        selected = (NodeBase) path.getLastPathComponent();
    TreeMap<String, NodeFile> existing = new TreeMap<String, NodeFile>();
    if (children != null) {
        for (Object c : children) {
            NodeFile nf = (NodeFile) c;
            nf.found = false;
            existing.put(nf.path.getFileName().toString(), nf);
        }
    }
    // Scan local job dir
    boolean changed = false;
    MNode source = getSource();
    Path localJobDir = Host.getJobDir(Host.getLocalResourceDir(), source);
    try (DirectoryStream<Path> dirStream = Files.newDirectoryStream(localJobDir)) {
        for (Path file : dirStream) if (buildChild(file, existing))
            changed = true;
    } catch (IOException e) {
    }
    // Update display immediately, before waiting on remote.
    if (changed)
        applyChanges(tree, selected, existing);
    changed = false;
    // Scan remote job dir. Because this is done second, remote files take lower precedence than local files.
    Host env = Host.get(source);
    if (env instanceof Remote) {
        try {
            // To get here, the use had to expand the node. This implies permission to prompt for login.
            ((Remote) env).enable();
            Path remoteJobDir = Host.getJobDir(env.getResourceDir(), source);
            try (DirectoryStream<Path> dirStream = Files.newDirectoryStream(remoteJobDir)) {
                for (Path file : dirStream) if (buildChild(file, existing))
                    changed = true;
            }
        } catch (Exception e) {
        }
    }
    List<String> keys = new ArrayList<String>(existing.keySet());
    for (String key : keys) {
        NodeFile nf = existing.get(key);
        if (!nf.found) {
            changed = true;
            existing.remove(key);
        }
    }
    if (changed)
        applyChanges(tree, selected, existing);
}

Example 10 with Host

use of gov.sandia.n2a.host.Host in project n2a by frothga.

the class SettingsHost method displayRecord.

// Update editor side with currently-selected item in list.
public void displayRecord() {
    Host h = list.getSelectedValue();
    editorHolder.removeAll();
    if (// This can happen during delete.
    h == null) {
        fieldName.bind(null, null);
        return;
    }
    fieldName.bind(h.config.parent(), h.name);
    comboClass.setSelectedItem(h.getClassName());
    editor = h.getEditor();
    editorHolder.add(editor, BorderLayout.CENTER);
    editor.revalidate();
    editor.repaint();
}