Parametric simuations from the command line ?

[ankur101]

Hi,

I'd like to know how to run parametric simulations in Cadence from the
command line (using a command like:
% spectre input.scs ...)

I have tried poking around in the directory structure, and after I run
a parametric simulation using the GUI, I see a file named "runObjFile"
in the "psf" directory that lists out the parametric simulations that
need to be run. Is the "runObjFile" the only different file compared
to a regular simulation (no parametric analysis)? How can I generate
this file? How do I tell spectre to use it ?

Thanks,
Ankur

 

[Andrew Beckett]

ankur101 wrote, on 06/26/08 20:32:

Hi,

I'd like to know how to run parametric simulations in Cadence from the
command line (using a command like:
% spectre input.scs ...)

I have tried poking around in the directory structure, and after I run
a parametric simulation using the GUI, I see a file named "runObjFile"
in the "psf" directory that lists out the parametric simulations that
need to be run. Is the "runObjFile" the only different file compared
to a regular simulation (no parametric analysis)? How can I generate
this file? How do I tell spectre to use it ?

Thanks,
Ankur

If you're running completely from the command line, you can just use spectre's
"sweep" analysis. See "spectre -h sweep".

The runObjFile is really only needed for AWD - so if you're running standalone,
you don't have to worry about it.

What parametric analysis does in ADE is to create a "master" psf directory which
refers to each of the sub-runs, particularly if they are distributed or not done
within the same invocation of the simulator (e.g. when running in "batch" rather
than "interactive" mode, set by the spectre.envOpts controlMode setting)..

But if running standalone, it's easier to use sweep analyses.

Andrew.

 

[ankur101]

Thanks, Andrew!