Minutes of SV-AC Meeting
Date: 2011-09-13
Time: 16:00 UTC (9:00 PDT)
Duration: 2 hours
Dial-in information:
Meeting ID: 38198
Phone Number(s):
1-888-813-5316 Toll Free within North America
Live Meeting:
https://webjoin.intel.com/?passcode=2266887
Agenda:
- Reminder of IEEE patent policy.
See:
http://standards.ieee.org/board/pat/pat-slideset.ppt
- Minutes approval
- Email ballot results:
2093: Checker construct should permit output arguments
- Issue resolution/discussion
2093: Checker construct should permit output arguments
3145: Need to clearly define "maximal property"
Attendance Record:
Legend:
x = attended
- = missed
r = represented
. = not yet a member
v = valid voter (2 out of last 3 or 3/4 overall)
n = not a valid voter
t = chair eligible to vote only to make or break a tie
Attendance re-initialized on 2010-07-06:
v[xxxxx-xxx--xxx---xxxx-xxx-xxx...........................] Ashok Bhatt (Cadence)
v[----xx--xxx-xxxxxx-xxxxxxxxxx-xxx-xxxxxxxxx-x-xxxxx--xxx] Laurence Bisht (Intel)
v[-xxxxxxxxxxxxxxxxx-xxxxxxxxx-xxxxxxxxxxxx-xxxxxxxxxxxxx-] Eduard Cerny (Synopsys)
v[xxxx-xxxxxxxxxxx--------xx---xxx--x-xxxxxxx-xxxxx-xxxxxx] Ben Cohen
(Accellera)
n[-------------------------------------xx-x-xxx-x--xxxxxxx] Surrendra Dudani (Synopsys)
n[--------x-xxxxxx........................................] Shaun Feng (Freescale)
n[x---------x-x--x-x-xxxx-x-x----x-x-x--xx---xxxx---x-xxxx] Dana Fisman (Synopsys)
n[-----------------------------------xxxxx-xxxx-x-xxxxxxxx] John Havlicek (Freescale)
v[xxxxxx---x-xxx-xx-xxxx-xxxxxxxxxxxxxxxx-xxx-xxxxxxxxxxxx] Tapan Kapoor (Cadence)
v[-xxx---x-xx-xxxxx-xxxx-x-x..............................] Jacob Katz (Intel)
t[-xxxxxxxxx--xxx-xxxxxxxxxxxxxxxxxxxxxxx--xxxxxxxxxxxxxxx] Dmitry Korchemny (Intel ¿ Chair)
v[-xxxxxxxxxxx-xxxxx-xxxx-xxxxxxxxxxxxxxx--xxxxxx-xxxxxxxx] Scott Little (Freescale)
v[xxx-xxxxxxxxxxxxxxxx-xxxxxxxxxxxxxxxxx-xxxxxxxxx-xxxxxxx] Manisha Kulshrestha (Mentor Graphics)
v[xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx-xxxxxxxxxxxxxxxxxxx] Anupam Prabhakar (Mentor Graphics)
v[xx-xxxxxxxxx--xxx-xxxx-xxx-xxx--x-xx-xxx-xx--xxxxxxx-xxx] Erik Seligman (Intel)
v[x-xxxxx-xxxx-xxxxxxxxxx-x-xxx-xxxx-xxxx--xxxxxx-xxxxxxx.] Samik Sengupta (Synopsys)
v[xxxxxx-xxxxxxxxxxxxx-xxxxxxxxxxxxxxxxx-xxxxxxxxxxxxx-xxx] Tom Thatcher (Oracle ¿ Co-Chair)
n[--------------------xx---xx-------x.....................] Srini Venkataramanan (CVC Pvt Ltd)
n[----------x.............................................] Vibarajan Viswanathan (Marvell)
|- attendance on 2011-09-13
|--- voting eligibility on 2011-09-13
Minutes:
- Reminder of IEEE patent policy.
See:
http://standards.ieee.org/board/pat/pat-slideset.ppt
Participants were reminded of the IEEE Patent policy.
- Minutes approval
Erik: : Move to approve meeting minutes
Samik : Second
Vote Results: 6y, 0n, 0a
- Email ballot results:
2093: Checker construct should permit output arguments
Failed: 1 no vote
(Manisha joined)
- Issue resolution/discussion
2093: Checker construct should permit output arguments
Manisha: Explained reasons for no vote
Dmitry not here today. He'll address corrections this week
and discuss next week.
3145: Need to clearly define "maximal property"
Erik: Ed was assigned as reviewer. He's on vacation now.
Will wait for him to return.
3564: Do assertions contribute to sensitivity list of always_comb?
Anupam: Considering to write a proposal. Suggesting that assertions
do not change sensitivity list.
Assertions should not change behavior of design.
Erik: Stand-alone deferred assertion is interpreted as a deferred
assertion in its own always_comb block.
You want the always block triggered the last time that the
variable changes.
Even concurrent assertions could use const value
Ben: Difference between immediate, deferred, and concurrent assertions?
Erik: In most real-life cases the extra triggering of the always_comb
will not change the result.
Erik: The only case where an assertion doesn't contribute to sensitivity
list would be a concurrent assertion using a sensitivity list.
Anupam: But it might be difficult to check for const cast to determine
whether to trigger block again.
Manisha: If concurrent assertion is inside an "if", the evaluation could
be queued, but could be flushed if always block triggered again.
Anupam: Will write a proposal.
Meeting adjourned.