I am a newbie using Java to do some data processing on csv files. For that I use the multithreading capabilities of Java (pools of threads) to batch-import the csv files into Java and do some operations on each of their lines. On my quad-core, multithreading speeds up the process a lot.
I am curious to know how/whether multiprocessing would speed up the operations even more? If so, is there a tutorial available somewhere? (the Java Basic Tutorial mentions a class, but I am not familiar enough with the syntax to understand the class by myself:
from http://download.oracle.com/javase/tutorial/essential/concurrency/procthread.html:
Most implementations of the Java virtual machine run as a single process. A Java application can create additional processes using a ProcessBuilder object. Multiprocess applications are beyond the scope of this lesson [where are they explained then?].