RE: Streaming, batching, concurrent and alternating

From: Russell Vreeland <vreeland_at_.....>
Date: Wed Jun 22 2005 - 11:25:15 PDT
> I think you misunderstood what I said.  I most certainly was 
> not describing a use model that relies on non-deterministic 
> behavior to do random testing.  I completely agree with you 
> on creating random timing using pseudo-random techniques.  I 
> was responding to Russ' statement that if there is a 
> mechanism that introduces the *potential* for 
> non-deterministic behavior then the user might as well go to 
> the completely free-running use model.  I disagree with that 
> precisely because of the non-deterministic timing a 
> free-running use model implies.

Per, you didn't really summarize what I was trying to say correctly.
The "potential" for non-deterministic behavior was not what I said. My
argument was that the mechanisms (the "knobs") that Shabtay described
are in my view too low-level, and too hazardous to be desireable as part
of a spec. Like introducing a rotary dial switch in a car where half of
the settings could increase horsepower a little bit, but the other half will
blow
up the engine. The mappings of the settings change constantly, and
Tensor Analysis is a pre-requisite for understanding the dial.

I think you'll agree that once the mechanism introduces *actual*
non-deterministic
behavior, then the free-running use model may as well be used?

> 
> So, Mentor does not support the free-running model except for 
> what is already possible in SCE-MI 1.1?

I hope Mentor will support a global switch for free-running, and it is
rarely used.

> 
> Per
> 
> -- 
> Per Bojsen                                Email: <bojsen@zaiqtech.com>
> Zaiq Technologies, Inc.                   WWW:   
> http://www.zaiqtech.com
> 78 Dragon Ct.                             Tel:   781 721 8229
> Woburn, MA 01801                          Fax:   781 932 7488
> 

---------------------------------------
---    Russ Vreeland (949)926-6143  ---
---    vreeland@broadcom.com        ---
---    Senior Principal Engineer    ---
---    Broadcom Corporation         ---
---------------------------------------
Received on Wed Jun 22 11:26:04 2005

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