I believe @gcas is looking to increase it due to being out of memory so going from 8085m to 4g is actually a 50% decrease (4g is an example in the FAQ coming from 1024m). I’d say he’s looking for something like 12g or more depending on installed memory.
My apologies, I didn’t pay attention to the amount but just to the fact that @gcas couldn’t find the parameter in the knime.ini file.
In all cases, the syntax for this parameter is either to specify the amount of memory in Megabytes or in Gigabytes. In the case of @gcas, if you need to set it up to 12 gigabytes, it should be as follows:
-Xmx12g
or alternatively
-Xmx12288m
given that 1 gigabyte is the equivalent of 1024 Megabytes.