[PCB_FORUM] Re: Very Slow Allegro v. 16.3

  • From: "Moris Ruso / MIGaCAD" <moris@xxxxxxxxxxx>
  • To: <icu-pcb-forum@xxxxxxxxxxxxx>
  • Date: Wed, 6 Apr 2011 08:20:09 +0300

Here are my tricks .
1) If you are using an Intel cpu based system try turning off the `CPU C1 state`. This will result in constant CPU speed. Speedstep tech. of Intel may impact performance under certain situations. 2) Try turning off Hyperthreading. There will be some trade-offs, but this can improve Allegro 16.3. 

I'm using these tricks on an i3-560 processor. (3.33Ghz)

Moris Ruso
----- Original Message ----- From: "Dickoff, Diane J" <diane.j.dickoff@xxxxxxxxx> 
To: <icu-pcb-forum@xxxxxxxxxxxxx>
Sent: Tuesday, April 05, 2011 10:00 PM
Subject: [PCB_FORUM] Re: Very Slow Allegro v. 16.3



Place NO_RATS on your Power nets.

-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Mark Salberg 
Sent: Tuesday, April 05, 2011 11:57 AM
To: Cadence User Group
Subject: [PCB_FORUM] Very Slow Allegro v. 16.3

Hello,
I was wondering if anyone there would have any tricks to speed up Allegro.
I am editing a board with quite a few Constraints in the V.16.3 CM.
Whenever I slide a trace, move a via or any mod, it hangs up for 30 sec
each time.
I have tried changing global shapes params from smooth to rough and even
disabled.
Short of turning off On-Line DRC, which I do not want to do.
Many DRC's to clean up.


Mark
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