In reply to Svetlana.

I cannot tell from your description. Your best bet is to send your program to SAS Technical Support. Be sure to specify your interface (DMS, EG, SAS Studio) and where the SAS workspace server is (Local, remote, grid,...) Two possible things to check: (1) make sure interactive procedures (eg, REG, GLM, DATASETS,....) are terminated by a QUIT statement, not by a RUN statement. (2) Make sure that you are opening/closing ODS destinations correctly. (3) If you are generating a lot of output, a lot of graphs, or a lot of messages to the log (for example, you are running a macro loop), then see the ideas in the article "Turn of ODS when running simulations."