[ibis-macro] IBIS Advanced Technology Modeling (ATM) agenda for 9/5/2006

From: "Muranyi, Arpad" <arpad.muranyi@xxxxxxxxx>
To: <ibis-macro@xxxxxxxxxxxxx>
Date: Tue, 5 Sep 2006 08:54:34 -0700

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Agenda
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1) Review of ARs:

2) The world's first (?) PDA model and simulation in VHDL-AMS  (by Arpad)

3) Continue the discussion on the Cadence API proposal.  Still looking
for a way out of the gridlock in which we are finding ourselves.

Our main question seems to be whether we want to make it easier on
the model maker or the tool.  This is related to the question whether
we should ask tools to support many languages and do the compilation
or whether the model should do the compilation (most likely on multiple
OS-s, etc...)  What makes this decision harder is that model makers
seem to have different favorite languages, and some times there are
existing infrastructures which are difficult to change or leave behind.

The summary from before still seems to be valid:

o  API for compiled vs. ASCII readable model
   - compiled models not desirable because separate compilations
     would have to be generated for each OS and compiler switch
     settings can make things incompatible very quickly
   - binary format not sufficient for IP protection
   - encrypted (and/or obfuscated) ASCII models may be the best

o  C vs. *-AMS or linear vs. non-linear simulation engine?
   - the 10 million bits per hour capability is due to using
     a linear simulation engine, not because of the choice of
     the C language
   - no linear simulators exist today which can use *-AMS
   - the assumption of linearity may not be sufficient
   - existing infrastructure: it is too big of a burden to
     rewrite existing libraries in another language or request
     model makers to learn a new language.  Should both C and
     *-AMS be supported?     

o  Is there a need for a new API in IBIS?
   - there are numerous (standard) API-s on the market already
   - the existing [External Model] or [Extern Circuit] keywords
     may be used for this purpose (with small modifications)

o  Specification related questions
   - do not standardize methodologies, it prevents evolution
   - prefer flexible definitions which are extendable later
   - should this be part of the IBIS specification, or a new,
     independent specification?
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[ibis-macro] IBIS Advanced Technology Modeling (ATM) agenda for 9/5/2006

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