[ibis-interconn] IBIS Interconnect Task Group February 17, 2010 Minutes and February 24, 2010 Agenda
- From: Bob Ross <bob@xxxxxxxxxxxxx>
- To: IBIS-Interconnect <ibis-interconn@xxxxxxxxxxxxx>
- Date: Thu, 18 Feb 2010 16:20:53 -0800
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IBIS INTERCONNECT MODELING AD HOC TASK GROUP MEETING MINUTES AND AGENDA
http://www.eda.org/ibis/adhoc/interconnect/
Mailing list: ibis-interconn@xxxxxxxxxxxxx<mailto:ibis-interconn@xxxxxxxxxxxxx>
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Next Meeting
Wednesday, February 24, 2010
9 AM US Pacific Time
Telephone Bridge Passcode
916-356-2663 5 883-6044
(for international and alternate US numbers, contact Michael Mirmak)
Live Meeting: http://tinyurl.com/yzo768q
or:
https://www.livemeeting.com/cc/sisoft/join?id=M462B6&role=attend&pw=P9%3D8%3BP%277b
Agenda:
- Attendence
- Call for patents
- Opens
- Sparse Matrix Mapping proposal - Draft 12 review
- Binary syntax and plans
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Minutes from February 17, 2010:
Attendees:
----------
(* denotes present)
Agilent - Radek Biernacki*, John Moore, Ken Wong
Ansoft - Denis Soldo
Cadence Design Systems - Terry Jernberg, Brad Griffin
Green Streak Programs - Lynne Green
Hewlett-Packard - Rob Elliott
IBM - Greg Edlund
Intel - Michael Mirmak
Mentor Graphics Corp. - John Angulo, Vladimir Dmitriev-Zdorov
Micron Technology - Randy Wolff
Sigrity - Sam Chitwood, Raymond Y. Chen, Tao Su, Brad Brim*
SiSoft - Walter Katz
Teraspeed Consulting Group - Bob Ross*
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No patents were announced.
Opens - None
SPARSE MATRIX DRAFT 11 REVIEW
We reviewed Draft 11 and agreed with the changes that Brad Brim had
done. We did provide a few minor comments.
One concern was the how "argument" was used. Brad indicated that he
wanted to avoid using the content of a keyword as if the keyword itself
contained the value. Radek Biernacki was concerned that it followed
the conventions of Touchstone 2.0. Bob Ross stated that a review of
the whole document would be valuable for editorial consistency. Brad
will look at Touchstone 2.0.
We commented that the [Matrix Format] paragraphs could be moved
together since that was an important keyword to reduce the number of
data-pairs to describe an N-port. Radek suggested that we also
add a statement that when the argument is Upper or Lower, the actual
data described is also the reciprocal data such that (i,j) = (j,i).
Bob and Radek also noted in the examples for Lower, the lower-half
matrix representation (showing the terms for the index-pair entries)
should be clarified that the full matrix is described (by reciprocity)
even though only the lower values are shown. This applies for
Example YY and ZZ.
The only issue was whether the sparse-labels should contain white-space
including LFCR. Brad and Radek favored this to simplify the rules with
minimal restrictions. The label restrictions (no leading '(' and only
one ':") support allowing general label syntax for sparse-labels.
Radek pointed out that page 4 of Touchstone 2.1 has a rule limiting
the acceptable ASCII characters for Touchstone. Bob was concerned that
with space or CRLF, a spurious character could cause the file to pass
with 0 Errors, but with some intended index-pairs would be interpreted
incorrectly as just part of a label string for the next label. This
could produce undetected incorrect simulations. Brad will consider
several proposals and send them to Bob to resolve before the next
meeting (which Brad will miss).
OTHER TOPICS
Brad stated that a discussion on the pending Model Connection Protocol
can be scheduled in two weeks (March 3, 2010).
We discussed briefly the binary format plans. Bob would like to have
it written up a a section in Touchstone 2.1. We are still questioning
whether the follow the IBM syntax presented by Greg Edlund or to
propose an independent syntax. This will be discussed further.
NEXT MEETING
Further review of Draft 12 changes and a resolution of the string
syntax for labels is planned. We wil discuss futher the binary syntax
and plans.
--
Bob Ross
Teraspeed Consulting Group LLC Teraspeed Labs
121 North River Drive 13610 SW Harness Lane
Narragansett, RI 02882 Beaverton, OR 97008
401-284-1827 503-430-1065
http://www.teraspeed.com 503-246-8048 Direct
bob@xxxxxxxxxxxxx
Teraspeed is a registered service mark of Teraspeed Consulting Group LLC
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