Tag: fork-join

When should we call join() after ForkJoinTask.invokeAll()

The API says: “Method invokeAll (available in multiple versions) performs the most common form of parallel invocation: forking a set of tasks and joining them all.” So my assumption is if I use …

Java Fork/Join Pool : Is it right to assume that number of threads in fork join pool depends entirely on underlying number of CPU’s?

fork-join java multithreading

Can a developer tell fork/join pool to create certain number of threads? If yes then is it guaranteed that those many number of threads will be created by pool? Answer Source : https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ForkJoinPool.html A ForkJoinPool is constructed with a given target parallelism level; by default, equal to the number of available processors. The pool attempts to maintain enough active (or