[SI-LIST] Re: New blog posting: Four things that drove me nuts about IBIS 5.1
- From: <colin_warwick@xxxxxxxxxxx>
- To: <twesterh@xxxxxxxxxx>
- Date: Wed, 24 Oct 2012 16:33:17 -0600
Hi Todd,
Thanks for the heads up. I'll ask my management about an outright donation or
placement in the public domain. We've done similar things in the past (e.g.
the Touchstone (r) 2 parser), so there's an existence proof that we can do it,
if it's a win-win.
-- Colin Warwick
Product manager for High Speed Digital, Agilent EEsof EDA
âfeeds blog @ http://Signal-Integrity.TM.Agilent.com/feed/
âtweets @signalintegrity
Touchstone is a registered trademark of Agilent Technologies, Inc.
-----Original Message-----
From: Todd Westerhoff [mailto:twesterh@xxxxxxxxxx]
Sent: Wednesday, October 24, 2012 5:27 PM
To: WARWICK,COLIN (A-Americas,ex1)
Cc: si-list@xxxxxxxxxxxxx
Subject: RE: [SI-LIST] Re: New blog posting: Four things that drove me nuts
about IBIS 5.1
Colin,
Sorry for the delay in reply.
I think you need to avoid the Creative Commons license for anything you
contribute to the IBIS Committee. We created a set of AMI model quality
guidelines (we called it Opal) under Creative Commons in 2010; the use of an
open licensing scheme seemed to create more confusion and consternation than
benefit. If you choose to contribute anything to IBIS, I believe it needs to
be free of copyright restrictions.
Todd.
Todd Westerhoff
VP, Software Products
Signal Integrity Software Inc. â www.sisoft.com <http://www.sisoft.com/>
6 Clock Tower Place â Suite 250 â Maynard, MA 01754
(978) 461-0449 <callto:978%29%20461-0449> x24 â twesterh@xxxxxxxxxx
âI want to live like thatâ
-Sidewalk Prophets
-----Original Message-----
From: colin_warwick@xxxxxxxxxxx [mailto:colin_warwick@xxxxxxxxxxx]
Sent: Monday, October 22, 2012 11:44 AM
To: twesterh@xxxxxxxxxx
Cc: si-list@xxxxxxxxxxxxx
Subject: RE: [SI-LIST] Re: New blog posting: Four things that drove me nuts
about IBIS 5.1
OK.
I'll my management about donating the copyright to IBIS Open Forum or releasing
it under Creative Commons or something.... Thanks.
-----Original Message-----
From: Todd Westerhoff [mailto:twesterh@xxxxxxxxxx]
Sent: Monday, October 22, 2012 11:39 AM
To: WARWICK,COLIN (A-Americas,ex1)
Cc: si-list@xxxxxxxxxxxxx
Subject: RE: [SI-LIST] Re: New blog posting: Four things that drove me nuts
about IBIS 5.1
Meh.
I don't think tweaking the words accomplishes much. It's tempting to try and
find "just the right word" to convey a meaning, but the problem is that what's
intuitive to one person is not intuitive to another. Then there's the fact
that this is a technical discussion, where we need to be explicit and not
implicit.
I agree that we need better documentation. Have you considered contributing
your work to the committee as a starting point?
Todd.
Todd Westerhoff
VP, Software Products
Signal Integrity Software Inc. â www.sisoft.com <http://www.sisoft.com/>
6 Clock Tower Place â Suite 250 â Maynard, MA 01754
(978) 461-0449 <callto:978%29%20461-0449> x24 â twesterh@xxxxxxxxxx
âI want to live like thatâ
-Sidewalk Prophets
-----Original Message-----
From: colin_warwick@xxxxxxxxxxx [mailto:colin_warwick@xxxxxxxxxxx]
Sent: Monday, October 22, 2012 10:00 AM
To: twesterh@xxxxxxxxxx
Cc: si-list@xxxxxxxxxxxxx
Subject: RE: [SI-LIST] Re: New blog posting: Four things that drove me nuts
about IBIS 5.1
Hi Todd,
Thanks! When you say "the guidelines," do you mean that the four points you
mention are guidelines posted by somebody somewhere? If so, can you point me to
them? I Googled around and couldn't find them.
I get lots and lots of questions about this from frustrated newcomers, so
whatever material that is out there isn't scratching the itch IMHO...
BTW, what do you think about my proposal to use the term "dual-function model"
as opposed to "dual-mode model"? Better? Worse? Meh?
Best regards,
-- Colin
-----Original Message-----
From: Todd Westerhoff [mailto:twesterh@xxxxxxxxxx]
Sent: Monday, October 22, 2012 9:12 AM
To: WARWICK,COLIN (A-Americas,ex1)
Cc: si-list@xxxxxxxxxxxxx
Subject: RE: [SI-LIST] Re: New blog posting: Four things that drove me nuts
about IBIS 5.1
Colin,
I think the guidelines are straighforward:
1) All AMI models support Time-Domain analysis.
2) AMI models with "Init_Returns_Impulse = True" support Statistical Analysis
With the further clarification that:
3) AMI models with "Getwave_Exists = True" support waveform processing which is
usually (but not always) NLTV
4) AMI models with both "Init_Returns_Impulse = True" and "Getwave_Exists =
True" have algorithmic support for both simulation modes, such that comparing
the results of Statistical and Time-Domain simulations is a worthwhile exercise.
Todd.
Todd Westerhoff
VP, Software Products
Signal Integrity Software Inc. â www.sisoft.com <http://www.sisoft.com/>
6 Clock Tower Place â Suite 250 â Maynard, MA 01754
(978) 461-0449 <callto:978%29%20461-0449> x24 â twesterh@xxxxxxxxxx
âI want to live like thatâ
-Sidewalk Prophets
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