[sv-ac] notes from meeting 2007-03-06

From: John Havlicek <john.havlicek_at_.....>
Date: Tue Mar 06 2007 - 11:51:57 PST
All:

Attached are the notes from today's SV-AC meeting.

Please let me know if corrections are required.

Also, please note the time change for our next 
meeting.

J.H.

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Minutes of IEEE P1800 SV-AC meeting #2007-05
Written by: John Havlicek

Date:  2007-03-06
Time:  17:00 UTC (11:00 CST) 

Dialin information:
-------------------

Country                 Number

AUSTRALIA               1800009128
AUSTRIA                 0800291873
BELGIUM                 080077334
CANADA                  8008671147
CHINA TELECOM (CT)      108001400732
CHINA NETCOM (CNC)      108007140759
DENMARK                 80703159
FINLAND                 0800770233
FRANCE                  0800941695
GERMANY                 08001014519
GREECE                  0080016122039738
HONG KONG               800933578
HUNGARY                 0680017180
INDIA                   0008001006032
INDONESIA               008800105607
IRELAND                 1800944116
ISRAEL			1809459738
ITALY                   800782388
JAPAN                   00531160427
LUXEMBOURG              80023985
MALAYSIA                1800808386
MONACO                  80093186
NETHERLANDS             08002658223
NEW ZEALAND             0800443736
NORWAY                  80057409
POLAND                  008001114672
PORTUGAL                800819106
RUSSIA                  81080022801012
SINGAPORE               8001011470
SOUTH AFRICA            0800992835
SOUTH KOREA             00308140540
SPAIN                   900967020
SWEDEN                  0201400559
SWITZERLAND             0800563054
TAIWAN                  00801126585
THAILAND                0018001562039684
UNITED KINGDOM          08005280546
UNITED STATES           8008671147

Access Code:  7375405


Attendance Record:
------------------
	Legend:
		x = attended
		- = missed
		r = represented
		. = not yet a member
		v = valid voter (2 out of last 3)
		n = not a valid voter
                t = chair eligible to vote only to make or break a tie

New PAR, attendance re-initialized on 2006-08-22:

vv[xxxxxxxxxxxxxxxx-xx] Doron Bustan (Freescale)
vv[xxxxxxxxxxxxxxxxx-x] Eduard Cerny (Synopsys)	
nn[------x-x-xxx-x---x] Surrendra Dudani (Synopsys)
vv[xxxx-xxx-xxx-------] Yaniv Fais (Freescale)
tt[xxxxxxxxxxxxxxxxxxx] John Havlicek (Freescale - Chair)
vv[xrxxxxxxxxxxxxx-xxx] Dmitry Korchemny (Intel - Co-Chair)
yn[xx----------xx-xxxx] Manisha Kulshrestha (Mentor Graphics)
vv[xxxxx-------x-xx-x-] Jiang Long (Mentor Graphics)
vv[x-xx--xx-xxxxxxx-x-] Hillel Miller (Freescale)
vv[-xxxxxxxx-xxxxxxxxx] Lisa Piper (Cadence)
nn[x..................] Erik Seligman (Intel)
nv[--xxxx-xx----------] Tej Singh (Mentor Graphics)
vv[xxxxxxxxxxxxxxxxxxx] Bassam Tabbara (Synopsys)
vv[xxxx...............] Tom Thatcher (Sun Microsystems)
   |------------------- attendance on 2007-03-06
 |--------------------- voting eligibility on 2007-03-06
|---------------------- new voting eligibility


Agenda:
-------

- Reminder of IEEE patent policy.
- Completed ballots on 1460, 1704.
- New Mantis items:  Bassam suggested that 1720 should go to SV-CC.
- 1599:  API and VPI changes for 0805 [BT]
  . To be moved to SV-CC after review.
- 1734:  Incomplete fix to Annex E in 0805 [JH]  
  . Proposal needs to be reviewed.
- 1735:  Incomplete fixes from 0928 [LP]
  . TT reviewed.  Ready to vote?
- 1737:  Incomplete fixes from 1381 [EC]
  . Proposal needs to be reviewed.  Volunteer?
- 1466:  Shortcuts for ## and * [LP]
  . YF reviewed.
- 1641:  Severity specification for error msgs [MK]
  . Should be discussed together with SV-BC
- 1722:  Bind inconsistencies [LP]
  . JH reviewed.  Should this go to Clause 19?
- 1668:  Local var initializers [JH]
  . Email vote aborted due to negative vote from EC.
- 1361:  Control exec of action blocks
  . Skipped this item.
- 1648:  Default disable [DK]
  . TT reviewed.
- 1674:  Context value functions [EC]
  . YF reviewed
- 1681:  Global clocking [EC] 
  . DB reviewed.
- 1682:  Future value functions [EC]
  . DB reviewed.
- 1547:  Verif. statement in clocking block [LP]
  . BT reviewed.
- 1728:  Let [EC]  
  . EC sent draft text of motion.
- 1729:  Immediate assume, cover [EC]
  . Proposal needs to be reviewed.  Volunteer?
- 1730:  Literal sequence and property arguments [EC]
  . Proposal needs to be reviewed.  Volunteer?
- 1731:  Sampled value functions with arbitrary clocks [EC]
  . Proposal needs to be reviewed.  Volunteer?


Notes:
------

- Reminder of IEEE patent policy.
- Completed ballots on 1460, 1704.
- SV-EC requests feedback on Mantis 890, version 7, two parts, by 14 March.
  Send to SV-EC and Neil.Korpusik@Sun.COM.  We will have individual reviews,
  not a full committee reponse.  Volunteers?  DK will look at it if no 
  one else does.  MK pointed out that this may impact 1681.  EC will
  try to have a look at it.
- New Mantis items:  BT suggested that 1720 should go to SV-CC.
  . There was an item on "and", "or".  SV-CC chair is Charles (chas@cadence.com).  
    JH will try to move this.
- 1599:  API and VPI changes for 0805 [BT]
  . To be moved to SV-CC after review.  BT made some minor updates.
    MK will review this and send feedback.
- 1734:  Incomplete fix to Annex E in 0805 [JH]  
  . Proposal needs to be reviewed.  DB will review.
- 1735:  Incomplete fixes from 0928 [LP]
  . TT reviewed.  Ready to vote?  Yes.  JH to call for email vote.
- 1737:  Incomplete fixes from 1381 [EC]
  . Proposal needs to be reviewed.  Volunteer?  TT, DB, MK will review.
  . MK points out that this is not equivalent to writing a concurrent 
    assertion outside the procedural context.
  . EC will revise the proposal with different forms for "assert property"
    and "cover property".
- 1466:  Shortcuts for ## and * [LP]
  . YF reviewed.  JH found some minor editorial problems.  Ready to vote?
  . DK to send Lisa suggestion for adding shortcut ? for "0 or 1 time".
- 1641:  Severity specification for error msgs [MK]
  . Should be discussed together with SV-BC
  . MK still needs to update the proposal.
- 1722:  Bind inconsistencies [LP]
  . JH reviewed.  Should this go to Clause 19?  Stu says he can move it to
    Clause 19 in the LRM merge.  Ready to vote?  Yes.  JH to call for email vote.
- 1668:  Local var initializers [JH]
  . Email vote aborted due to negative vote from EC.
  . EC's issues:
    + Is not in line with other SV initializations, requires order of
      evaluation.
    + It may hide user problems in illegal acces to to local variables.
    + Issues brought up by Dmitry.
    + EC doesn't like the initializations -- they seem unnecessary.
  . DK's issues:
    + DK:  this is convenient for users, but seems difficult to 
      define in some cases.
    + Properties with sequence expressions that match empty word are 
      not illegal.
    + Concern about empty word satisfaction by properties with "disable iff"
    + Two rewrite rules for properties is undesirable.
    + Interaction of initialization with nestable accepton/rejecton.
  . JH's issues:
    + Subtlety of when to execute declaration assignment when clock is 
      changing.
    + The property format really does need strong and weak forms.
  . We need to continue email discussion of the noted issues.  There is
    no urgency to complete this proposal now.  JH intended to allow 
    assignments in the formal argument list in the proposal for 1667,
    with semantics derived from that of declaration assignments.
- 1361:  Control exec of action blocks [MK]
  . MK:  there may be less need for this with 0805 passed.  There remains 
    the issue of action blocks executing on vacuous match.
  . MK to revise this proposal.  Some parts are no longer needed
    due to other proposals.
- 1648:  Default disable [DK]
  . TT reviewed.
  . EC:  there is an issue when there are more than two event expressions.
  . EC will provide a revised proposal and send it also to Shalom.  
    TT will review.
- 1674:  Context value functions [EC]
  . YF reviewed, email discussion with Shalom Bresticker and TT.
  . EC will check the latest version on mantis and, as needed, post a revised version 
    to clarify relationship with clock flow.  YF will review.
- 1681:  Global clocking [EC] 
  . DB reviewed.  
  . Comments from SV-EC, Jonathan Bromley.
  . DK sent response to Jonathan.
  . Is "design" well defined?
  . New keyword "global" raising concern.
  . What does alignment to global clock mean?
  . EC:  we seem to need to have better text to describe the motivation.
  . EC and DK will try to reformulate the proposal in a more friendly
    way.  DB will review.  EC and DK will decide when to send the revised
    proposal to SV-EC and may attach an explanation of how the SV-EC 
    concerns have been addressed.
- 1682:  Future value functions [EC]
  . DB reviewed.
  . EC:  there were concerns about reading in observed region, stability.  
    DB suggested returning preponed values from next timesteps.  EC thinks 
    this will be inefficient.  EC suggests making the value the observed 
    region value, absolutely.
  . MK:  890 needs to be looked at.  Clocking block changes moving to observed 
    region may make the observed value more complicated.
  . DK:  We need to try to converge on the definition.
 
The following were not discussed for lack of time.

- 1547:  Verif. statement in clocking block [LP]
  . BT reviewed.
- 1728:  Let [EC]  
  . EC sent draft text of motion.
- 1729:  Immediate assume, cover [EC]
  . Proposal needs to be reviewed.  Volunteer?
- 1730:  Literal sequence and property arguments [EC]
  . Proposal needs to be reviewed.  Volunteer?
- 1731:  Sampled value functions with arbitrary clocks [EC]
  . Proposal needs to be reviewed.  Volunteer?


Next meeting: 
-------------

2007-03-20 at 16:00 UTC (11:00 CDT), 2 hour slot.
Received on Tue Mar 6 11:52:31 2007

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