gmic_qt or gimp_gmic_qt : how make it using more cores?

Software G'MIC
1

Hi,
I have a brand new machine with 16 (32) cores (threads) and lots of memory.
Unfortunately, many filter still take 30 and more seconds since gmic_qt uses only a single core.

Is there any (configuration) option to make it using more cores?

2

You have to enable the OpenMP flags when compiling G’MIC in order to make it use multiple cores.
Anyway, some filters may still use a single core, if they don’t use any of the OpenMP features, even in this case.
What are the filters you’d like to speed up ?

3

The DCP Dehaze filter is especially time consuming.

4

I’m not the author of this one, so I can’t say really much more at this point :slight_smile:
I’ll take a look at its code to see if something can be improved.