Memory low issue

Hi

When I take a planning run with t code cdpso there are lots of resources,products ,orders involved ,so loading and run doesn't happen instantly sometimes for 2 hours together
(even to load data) ....At times I also get an error message like the screen shot below....i understand memory should be elevated..where at what point is a question mark ? is it server memory ? (my laptop is a node in a big network) or is it my laptop RAM memory ?