Turning on Spectre Multithreading for Device Evaluation

If you are using the AMS Designer simulator with the Spectre solver, you can turn on multithreading for device evaluation.

To turn on Spectre mutlithreading for AMS simulation:

Use the -spectre_argscommand-line option to xrun (or to xmsim) to specify the Spectre +mt or +multithread command-line argument as follows:
xrun -spectre_args +mt[=N] ...
xrun -spectre_args +multithread[=N] ...Here, N is the number of threads. If N is larger than the number of cores of the computer, N is reset to the number of cores. If +mt=N is not specified, the default number of threads is equal to the number of cores of the computer.
Alternatively, you can use the multithread=on [nthreads=N] option setting in a control file to turn on multithreading.

Turning off Spectre Multithreading

If you are using the AMS Designer simulator with the Spectre solver, you can explicitly turn off multithreading for AMS simulation.

To do this:

Specify -mt or -multithread with the -spectre_args command-line option to xrun as follows:
xrun -spectre_args -mt ...
xrun -spectre_args -multithread ...Alternatively, you can use the multithread=off option setting in a control file to turn off multithreading.