IEEE P1076.1 Working Group - Table-Driven Modeling Project - Telco Meeting Minutes of November 8, 2010

Status: draft.

Attendees

  • Ernst Christen
  • Joachim Haase (chair, meeting convener)
  • Arpad Muranyi
  • Thuy Tran
  • Alain Vachoux (note taker)

Agenda

  • Call to order
  • Volunteer fro minutes
  • Approval of agenda
  • Approval of minutes from last meeting
  • Results of review and vote on the requirements' document
  • Discussion on combinations of interpolation and extrapolation methods
  • Next steps and next meeting
  • AOB
  • Adjourn

Call to order on November 8, 2010 at 8:10am PDT (17:10 CEST)

Joachim welcomes the participants and starts presenting the meeting slides.

Volunteer for minutes

Alain volunteers to take notes.

Approval for agenda

Agenda unanimously approved.

Minutes from last meeting

Minutes of October 11, 2010 meeting unanimously approved.

Results of review and vote on the requirements' document

WG vote on requirement document ended on Oct. 17. Requirement document approved with some comments:

  • David Bishop: Vector/Matrix Operations (VMO) project is reviewing a strawman proposal. TDM may reuse some tpyes and ot functions defined there. VMO work is considered as a resource for implementing TD packages.
  • Subramanian Sivaramakrishnan: Editorial change.
  • Arpad Muranyi:Requirement R2 to be rephrased. List of formats in the rationale of requirement R14 to be removed.

Alain to publish an updated version 1.0 of the document to the private area.

Results of review and vote on the requirements' document

Discussion on combinations of interpolation and extrapolation methods

Joachim prepared a document presenting possible combinations of one-dimensional interpolation and extrapolation methods.

Ernst stressed that it is required to defined the form of polynomials (max order 3?) for internal data points and at left and right sides of the data point range.

Cubic spline lookup function requires the solution of a triangular system of equations.

Not all possible combinations are useful. It is proposed to consider the Verilog-AMS approach for extrapolation, for example:

  • For nearest-knot interpolation, use constant extrapolation only.
  • For linear interpolation, use constant or linear extrapolation only.
  • For quadratic interpolation, use constant or linear extrapolation only.

Joachim to summarize results.

Next steps and next meeting

Next steps: see slides.

The next telco is planned on December 6, 2010 at 8am PDT or 17:00 CEST.

AOB

None.

Adjourn

Joachim adjourns the meeting at 18:35 CEST.

Action items

Alain:

  • Update requirement document from the meeting discussion.

Joachim:

  • Summarize results on practical combinations of interpolation and extrapolation methods.
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