Adding more memory often speeds things up and allows some processes to complete. It is always worth checking to ensure that you are using the maximum amount of memory that is available.

The first thing to say is that 32-bit operating systems can generally address a maximum of 4 GB, so it is always worth getting a 64-bit version where this limit is much higher. A suitable processor on which the operating system can be run is also required. The general rule is to go for the 64-bit architecture; however, you can consult an expert to get clarity. Secondly, RapidMiner Studio can be run in a number of ways. I generally launch the GUI from a batch file because this gives more control, particularly in a Windows environment, where a separate console is launched. The log information is written to this console. This can be very useful if things become unresponsive. The file to launch the GUI is called RapidMiner-Studio.bat on Windows machines and is located in the scripts folder where RapidMiner is installed. In Linux environments, it is called RapidMiner-Studio.sh.

By defining the JAVA environment variable MAX_JAVA_MEMORY, it is possible to change the amount of memory RapidMiner uses. For example, to get 4 GB of memory, this variable would be set to 4,096 via the Control Panel in Windows or an appropriate configuration change in UNIX. If you find that processes are running slowly and the system monitor in the GUI shows memory getting low in RapidMiner, it is always worth setting the upper limit to the highest value that you can. Buying more memory is also a good option.

However, there will always be a time when you won't have enough memory and the question will arise as to what to do then.