BIGSIM includes an emulator , and a simulator .
Unlike MPI - Sim , BIGSIM is a trace - driven system that simulates based on the logs of executions saved in files by a separate emulator program .
system includes an emulator , and a simulator .
Unlike MPI - Sim , BIGSIM is a trace - driven system that simulates based on the logs of executions saved in files by a separate emulator program .