Setting up heap spaces and garbage collection

Memory heap spaces and garbage collection are frequently discussed yet are often the most frequently ignored benchmarks. With DL4J/ND4J, you can configure two types of memory limit: on-heap memory and off-heap memory. Whenever an INDArray is collected by the JVM garbage collector, the off-heap memory will be de-allocated, assuming that it is not being used anywhere else. In this recipe, we will set up heap spaces and garbage collection for benchmarking.

How to do it...

1. Add the required VM arguments to the Eclipse/IntelliJ IDE, as shown in the following example:

-Xms1G -Xmx6G -Dorg.bytedeco.javacpp.maxbytes=16G -Dorg.bytedeco.javacpp.maxphysicalbytes=20G

For example, in IntelliJ...