Examples with BatchEnvironment edu.iu.dsc.tws.tset.env.BatchEnvironment used on opensource projects

Example 11 with BatchEnvironment

use of edu.iu.dsc.tws.tset.env.BatchEnvironment in project twister2 by DSC-SPIDAL.

the class PartitionExample method execute.

@Override
public void execute(WorkerEnvironment workerEnvironment) {
    BatchEnvironment env = TSetEnvironment.initBatch(workerEnvironment);
    List<TField> fieldList = new ArrayList<>();
    fieldList.add(new TField("first", MessageTypes.INTEGER));
    fieldList.add(new TField("second", MessageTypes.DOUBLE));
    RowSourceTSet src = env.createRowSource("row", new SourceFunc<Row>() {

        private int count = 0;

        @Override
        public boolean hasNext() {
            return count++ < 1000;
        }

        @Override
        public Row next() {
            return new TwoRow(1, 4.1);
        }
    }, 4).withSchema(new RowSchema(fieldList));
    BatchRowTLink partition = src.partition(new PartitionFunc<Row>() {

        private List<Integer> targets;

        private Random random;

        private int c = 0;

        private Map<Integer, Integer> counts = new HashMap<>();

        @Override
        public void prepare(Set<Integer> sources, Set<Integer> destinations) {
            targets = new ArrayList<>(destinations);
            random = new Random();
            for (int t : targets) {
                counts.put(t, 0);
            }
        }

        @Override
        public int partition(int sourceIndex, Row val) {
            int index = random.nextInt(targets.size());
            int count = counts.get(index);
            counts.put(index, count + 1);
            c++;
            if (c == 1000) {
                LOG.info("COUNTS " + counts);
            }
            return targets.get(index);
        }
    }, 4, 0);
    partition.forEach(new ApplyFunc<Row>() {

        private TSetContext ctx;

        private int count;

        @Override
        public void prepare(TSetContext context) {
            ctx = context;
        }

        @Override
        public void apply(Row data) {
            LOG.info(ctx.getIndex() + " Data " + data.get(0) + ", " + data.get(1) + ", count " + count++);
        }
    });
}

Example 12 with BatchEnvironment

use of edu.iu.dsc.tws.tset.env.BatchEnvironment in project twister2 by DSC-SPIDAL.

the class DirectIterExample method execute.

@Override
public void execute(WorkerEnvironment workerEnv) {
    BatchEnvironment env = TSetEnvironment.initBatch(workerEnv);
    SourceTSet<Integer> src = dummySource(env, COUNT, PARALLELISM).setName("src");
    // cache the src input (first task graph will be created and executed)
    CachedTSet<Integer> cachedInput = src.direct().cache();
    LOG.info("test direct iteration");
    ComputeTSet<Object> lazyForEach = cachedInput.direct().lazyForEach(input -> {
        LOG.info("##" + input.toString());
    });
    // will be executed 4 times)
    for (int i = 0; i < 4; i++) {
        env.eval(lazyForEach);
    }
    env.finishEval(lazyForEach);
}

Example 13 with BatchEnvironment

use of edu.iu.dsc.tws.tset.env.BatchEnvironment in project twister2 by DSC-SPIDAL.

the class FullGraphRunExample method execute.

@Override
public void execute(WorkerEnvironment workerEnv) {
    BatchEnvironment env = TSetEnvironment.initBatch(workerEnv);
    SourceTSet<Integer> src = dummySource(env, COUNT, PARALLELISM);
    src.direct().flatmap((FlatMapFunc<Integer, Object>) (integer, collector) -> LOG.info("dir= " + integer));
    src.reduce(Integer::sum).flatmap((FlatMapFunc<Integer, Object>) (integer, collector) -> LOG.info("red= " + integer));
// env.run();
}

Example 14 with BatchEnvironment

use of edu.iu.dsc.tws.tset.env.BatchEnvironment in project twister2 by DSC-SPIDAL.

the class KeyedAddInputsExample method execute.

@Override
public void execute(WorkerEnvironment workerEnv) {
    BatchEnvironment env = TSetEnvironment.initBatch(workerEnv);
    KeyedSourceTSet<String, Integer> src0 = dummyKeyedSource(env, COUNT, PARALLELISM);
    KeyedSourceTSet<String, Integer> src1 = dummyKeyedSourceOther(env, COUNT, PARALLELISM);
    KeyedCachedTSet<String, Integer> cache0 = src0.cache();
    KeyedCachedTSet<String, Integer> cache1 = src1.cache();
    ComputeTSet<String> comp = cache0.keyedDirect().compute(new BaseComputeCollectorFunc<Iterator<Tuple<String, Integer>>, String>() {

        private Map<String, Integer> input1 = new HashMap<>();

        @Override
        public void prepare(TSetContext ctx) {
            super.prepare(ctx);
            // populate the hashmap with values from the input
            DataPartitionConsumer<Tuple<String, Integer>> part = (DataPartitionConsumer<Tuple<String, Integer>>) getInput("input").getConsumer();
            while (part.hasNext()) {
                Tuple<String, Integer> next = part.next();
                input1.put(next.getKey(), next.getValue());
            }
        }

        @Override
        public void compute(Iterator<Tuple<String, Integer>> input, RecordCollector<String> output) {
            while (input.hasNext()) {
                Tuple<String, Integer> next = input.next();
                output.collect(next.getKey() + " -> " + next.getValue() + ", " + input1.get(next.getKey()));
            }
        }
    }).addInput("input", cache1);
    comp.direct().forEach(i -> LOG.info("comp: " + i));
    LOG.info("Test lazy cache!");
    ComputeTSet<Object> forEach = comp.direct().lazyForEach(i -> LOG.info("comp-lazy: " + i));
    for (int i = 0; i < 4; i++) {
        LOG.info("iter: " + i);
        env.eval(forEach);
        try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
    env.finishEval(forEach);
}

Example 15 with BatchEnvironment

use of edu.iu.dsc.tws.tset.env.BatchEnvironment in project twister2 by DSC-SPIDAL.

the class PartitionExample method execute.

@Override
public void execute(WorkerEnvironment workerEnv) {
    BatchEnvironment env = TSetEnvironment.initBatch(workerEnv);
    int start = env.getWorkerID() * 100;
    SourceTSet<Integer> src = dummySource(env, start, COUNT, PARALLELISM);
    LOG.info("test foreach");
    src.partition(new LoadBalancePartitioner<>()).forEach(i -> LOG.info("foreach: " + i));
    LOG.info("test map");
    src.partition(new LoadBalancePartitioner<>()).map(i -> i.toString() + "$$").direct().forEach(s -> LOG.info("map: " + s));
    LOG.info("test flat map");
    src.partition(new LoadBalancePartitioner<>()).flatmap((i, c) -> c.collect(i.toString() + "##")).direct().forEach(s -> LOG.info("flat:" + s));
    LOG.info("test compute");
    src.partition(new LoadBalancePartitioner<>()).compute((ComputeFunc<Iterator<Integer>, Integer>) input -> {
        int sum = 0;
        while (input.hasNext()) {
            sum += input.next();
        }
        return sum;
    }).direct().forEach(i -> LOG.info("comp: " + i));
    LOG.info("test computec");
    src.partition(new LoadBalancePartitioner<>()).compute((ComputeCollectorFunc<Iterator<Integer>, String>) (input, output) -> {
        int sum = 0;
        while (input.hasNext()) {
            sum += input.next();
        }
        output.collect("sum" + sum);
    }).direct().forEach(s -> LOG.info("computec: " + s));
}