org.apache.spark.examples.MultiBroadcastTest.scala Maven / Gradle / Ivy
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.examples
import org.apache.spark.SparkContext
object MultiBroadcastTest {
def main(args: Array[String]) {
if (args.length == 0) {
System.err.println("Usage: BroadcastTest [] [numElem]")
System.exit(1)
}
val sc = new SparkContext(args(0), "Broadcast Test",
System.getenv("SPARK_HOME"), Seq(System.getenv("SPARK_EXAMPLES_JAR")))
val slices = if (args.length > 1) args(1).toInt else 2
val num = if (args.length > 2) args(2).toInt else 1000000
var arr1 = new Array[Int](num)
for (i <- 0 until arr1.length) {
arr1(i) = i
}
var arr2 = new Array[Int](num)
for (i <- 0 until arr2.length) {
arr2(i) = i
}
val barr1 = sc.broadcast(arr1)
val barr2 = sc.broadcast(arr2)
sc.parallelize(1 to 10, slices).foreach {
i => println(barr1.value.size + barr2.value.size)
}
System.exit(0)
}
}
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