Is it necessary that I use join() with fork() or I may use also either of join(), get(), invoke(). I checked the API and besides that get() throws InterruptedException and ExecutionException I don'...

I try to use a ForkJoinPool to parallelize my CPU intensive calculations. My understanding of a ForkJoinPool is, that it continues to work as long as any task is available to be executed. Unfortun...

I have written the following snippet: static private int counter; public void compute() { if (array.length<=500) { for(int i = 0;i<array.length;i++){ counter++; System.out.println("...

Recently, I came to know about the Java 7 fork/join framework - what I learned is that it could be useful for divide-and-conquer like problems. My question is, does the framework guarantees execut...

I need to spawn set of Futures and wait untill all of them complete either with failure or with some success. The recent Scala 2.10 doesn't contain anything like that or I did miss something?

Why ForkJoinPool was forked for Scala? Which implementation and for which case is preferred?

I would like to improve my fork/join little example to show that during Java Fork/Join framework execution work stealing occurs. What changes I need to do to following code? Purpose of example: j...

See the simplified example code here: process job[num_objs]; // assume also, arr_obj1s (array of type obj1) and // arr_obj2s (array of type obj2) are arrays of size // num_objs, and the obj...

This came up as a "side effect" to an an answer on another question today. It's more about curiosity than about an actual problem. Java SE 7 offers what Oracle calls "the fork/join framework". It ...

I am new to Scala/Akka, although I am very well familiar with the concept of actor-based modeling. I am trying to parallelize an existing code for better performance, and I have two versions: one i...

I read about the implementation of the Fork/Join framework that was introduced in Java 7 and I just wanted to check that I understand how the magic works. As I understand, when a thread forks, it...

I'm looking for well organized information sources about how the upcoming jsr166y (fork-join, fences) and extras166y (ParallelArray, etc.) can be used - something from tutorial to expert level.

I'm comparing two variations on a test program. Both are operating with a 4-thread ForkJoinPool on a machine with four cores. In 'mode 1', I use the pool very much like an executor service. I toss...

i am starting to learn the ExecutorService class. The documentation (and tutorials online) say to always call ExecutorService.shutDown() to reclaim resources. however, the documentation also says t...

Is there any plan to leverage java 7 util.concurrent's ForkJoin APIs or, expose similar API in Akka?

in my application, I have to solve a problem by executing many network-io bound task and sometime one io bound task and be divided into smaller io bound tasks. These tasks are currently getting exe...

As I understand jdk7 has the support for fork-and-join, Can I use fork-and-join in JDK6 without upgraging to JDK7.0?

Brian Goetz's wrote a nice article on fork-join at http://www.ibm.com/developerworks/java/library/j-jtp03048.html. In it, he lists a merge sort algorithm using the fork-join mechanism, in which he ...

Is it possible, in theory, to use the Scala Actor Framework to do a kind of asynchronous divide-and-conquer computation similarly to JDK 7's Fork-Join framework? If so, how could I express an FJ pr...