The idmtool.ini file includes some global parameters that drive features within idmtools. These primarily control features around workers and threads and are defined within the [COMMON] section of idmtool.ini. Most likely, you will not need to change these.
The following includes an example of the [COMMON] section of idmtools.ini with the default settings:
[COMMON] max_threads = 16 sims_per_thread = 20 max_local_sims = 6 max_workers = 16 batch_size = 10
max_threads - Maximum number of threads for analysis and other multi-threaded activities.
sims_per_thread - How many simulations per threads during simulation creation.
max_local_sims - Maximum simulations to run locally.
max_workers - Maximum number of workers processing in parallel.
batch_size - Maximum batch size to retrieve simulations.