====================================================================== IBIS INTERCONNECT MODELING AD HOC TASK GROUP MEETING MINUTES AND AGENDA http://www.eda.org/ibis/adhoc/interconnect/ Mailing list: ibis-interconn@freelists.org ====================================================================== Next Meeting Wednesday, February 17, 2010 9 AM US Pacific Time Telephone Bridge Passcode 916-356-2663 5 206-7284 (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 - TBD - Sparse Matrix Mapping proposal - Draft 11 review - Binary discussion ====================================================================== Minutes from February 10, 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* ======================================================================== No patents were announced. Opens - None SPARSE MATRIX DRAFT 10 (AND DRAFT 11 PREVIEW) Brad Brim provided a Draft 10. In response to the consensus at the January 27, 2010 meeting 'integer-label' was changed to 'sparse-label', and a few rules no longer applicable to integers were deleted, and a few rules were added for string-based labels. The changes were discussed briefly and a few minor comments were made for clarity. The string labels can have any ASCII text, but with these three rules: (1) terminated with a ':' character, (2) not include the ':' character anywhere else within the string, and (3) not start with a '(' character. These rules are to make the distinctions between sparse-label and the integer-pair syntax more distinct to avoid accepting ambiguous cases due to simple typographical errors. The changes were accepted, and Draft 10 serves as a new baseline. Brad also had begun restructing in preparation for Draft 11. Bob Ross showed a Draft 11 under preparation. Because this was not sent out, it was only previewed to show what is being considered. The changes provided a better organization for the rules and introduced a few other terms such as "group" of index-pairs" to simplify the description of the rules. The officiale Draft 11 is attached to this e-mail and will be reviewed at the next meeting. BINARY DISCUSSION Bob Ross mentioned that Walter Katz provided a Wikepedia link concerning IEEE Standard for Floating-Point Arithmetic (IEEE 754) as a reference for numerical data structures: http://en.wikipedia.org/wiki/IEEE_754-2008 Bob had some clarication questions concerning the binary encoding. Bob asked if there were any free utilities for binary conversions, and Walter stated that he was not aware of any. Most software developers can easily write code for the conversions with the stream IO functions. Walter also commented that the tschk2 parser would be expected to have a read/write mode for binary representation. Bob added that it would be for both Touchstone 1.0 and 2.X versions. Walter expected that the syntax and rules would be compatible with those presented by Greg Edlund of IBM in earlier meetings. There was no reason to try to be different. NEXT MEETING Draft 11 will be reviewd at the meeting next week. We will continue discussing binary encoding plans, if time permits. Brad Brim indicated that the Model Connection Protocol (MPC) proposal is not yet ready for discussion.