2.4 Sequential Mode

As mentioned above, the same source code can be used to generate a purely sequential POSE executable by using the -s flag to etrans.pl and linking with -module seqpose. This turns off all aspects of synchronization, checkpointing and GVT calculation that are needed for optimistic parallel execution. Thus you should experience better one-processor times for executables built for sequential execution than those built for parallel execution. This is convenient for examining how a program scales in comparison to sequential time. It is also helpful for simulations that are small and fast, or in situations where multiple processors are not available.