All systems with x86 architecture or above with linux OS (recommended ubuntu 16.04, RedHat 7 or above) installed can run atssim. We recommend at least 4 GB RAM for individual license run to simulate module level designs. If users are running system level testcases using UVM methodology, then large RAM (16 BG or more) is required based on complexity of design.
The best setup for industries is to use a high speed server having a RAM of 16 GB or higher in a linux environment.