====================================================================== 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 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 ====================================================================== 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* ======================================================================== 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.