Increase heap size in java for weka

Question

I\'m trying to increase the heap size in java for weka which keeps crashing. I used the suggested line:

> java -Xmx500m -classpath

but

Answer 1

If we are using Weka Workbench CLI or Knowledge explorer we need to change as below.

As the documentation suggests the runtime parameter should be -Xmx[size_required]m where [size_required] is memory size you intend to keep to avoid memory exception.

Open RunWeka.ini

Define maxheap=[size_required]G

In my case I kept maxheap=4G , One can set like maxheap=4096m and add -Xmx#maxheap# to all the run options at # setups (prefixed with "cmd_") sections next to java commands like below

cmd_default=javaw -Xmx#maxheap# ...............
cmd_console=cmd.exe /K start cmd.exe ..................
cmd_explorer=java -Xmx#maxheap# .................
cmd_knowledgeFlow=java -Xmx#maxheap#....................

maxheap=4G

Verify the same by restarting Weka and Help>>SystemInfo