Bogdan14,
Since this discussion has been marked as solved, you might have a better response from the NI community if you made a new thread and posted your question on there. Feel free to link this forum since your question does seem related to this issue.
Additionally, you might want to monitor your memory usage via the resource below. The amount of memory being used is completely dependent on the size of your array.
http://digital.ni.com/public.nsf/allkb/8C7B655978C8ADFB86256AAE004AD261
Regards,
Ali S.
Applications Engineer
National Instruments
Regards,
Ali S.
Applications Engineering
National Instruments