Re: Model name question

Scott, Arpad,

May I suggest that you are headed toward a slippery slope. One common name
conflict with models that the tuples mentioned do not eliminate is second
source parts from multiple manufacturers. They might have started with the
same model and tweaked it for their process. If you try to come up with a
scheme where a single name includes every possible identifying mark, then
you'll end up with a ridiculously long name.

I suggest leaving it to the tools to keep track of which model they are
dealing with. It ain't difficult. Software has had to do this for a long
time. It's not new. It's not rocket science.

Cheers,
Matthew Flora

----- Original Message -----
From: "Scott McMorrow" <scott@vasthorizons.com>
To: "Muranyi, Arpad" <arpad.muranyi@intel.com>
Cc: <ibis@eda.org>
Sent: Thursday, July 12, 2001 3:28 PM
Subject: Re: Model name question

> Arpad,
>
> I believe many simulator vendors already identify models
> internally by the following tuple:
>
> (component_name, model_name)
>
> I would recommend formalizing this in future IBIS specifications.
> We need not specify the exact format of the naming convention,
> but we do need to clarify that a model should be identified by
> component_name and model_name, since model_names are
> not unique.
>
> If we were all real sticklers, we would require tools to identify
> a model by the following tuple:
>
> (component_name, model_name, revision)
>
> Many a time I have been bit by multiple revisions of models laying
> around ... especially with automatic path searches of model directories,
> where the last model loaded is the one that is used.
>
> regards,
>
> scott
>
>
> "Muranyi, Arpad" wrote:
>
> > All,
> >
> > I would like to find out whether there is a need to include the
> > component name as part of the buffer names for the [Model]
> > keyword in an IBIS file. The reasoning goes like this:
> >
> > If there are two different IBIS files with buffer names inside
> > them which are the same (while the electrical characteristics
> > of the models are different) and these two models are used in
> > the same simulation, could the tool lose track of which one is
> > which?
> >
> > Do tools make these names unique for simulations to prevent
> > this from happening so that me as a model maker wouldn't have
> > to worry about this?
> >
> > Thanks,
> >
> > Arpad
> > =================================================================
>
> --
> Scott McMorrow
> Principal Engineer
> SiQual, Signal Quality Engineering
> 18735 SW Boones Ferry Road
> Tualatin, OR 97062-3090
> (503) 885-1231
> http://www.siqual.com
>
>

 
Received on Thu Jul 12 16:17:03 2001