[PCB_FORUM] Re: [SPAM] Re: Speeding up Allegro

Jim,

 

You can easily find all nets with a common property (i.e. No Rat):

 

-          click Display -> Element, "Nets" on in Find filter

-          set Find By Name pull-down to "Property"

-          click the More button

-          click on "No_Rat=" from the section at left (it moves to the
Selected objects at right)

-          click on the Apply button

-          all of the nets with No Rat now appear in the Show Element
window

 

Good luck with it!

 

Gary

 

  

Gary E. MacIndoe

PCB Design Engineer

Longmont, Colorado

 

amd.com

gary.macindoe@xxxxxxx

________________________________

From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of J Wages
Sent: Friday, February 16, 2007 8:40 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: [SPAM] Re: Speeding up Allegro

 

Well, I am at the point where I need to find which power nets, the nets
which I had NO_RAT=TRUE property on before, and it's a lot easier to see
them when you can hi-lite the rats nets. Thanx anyways.

 

 

Jim S. Wages / SR. PCB Layout Designer:  

Cary, NC - H: 919-466-1596 Cell: 919-484-2963

 

        -----Original Message-----
        From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Dave Seymour
        Sent: Friday, February 16, 2007 10:31 AM
        To: icu-pcb-forum@xxxxxxxxxxxxx
        Subject: [SPAM] [PCB_FORUM] Re: Speeding up Allegro

        Jim,
        
        On power nets with lots of connections, 
        Add the property NO_RAT.
        
        dave
        
        
        Marcel Tran wrote:
        
        

        
        Jim, 
        
        Look for those Nets that were defined as DC nets. You may
temporarily remove this property to improve Allegro performance ...
(Logic/Identify DC nets/ ....) 
        
        Thanks and Regards,
        
        Marcel Tran C.I.D.
        IBM Corp.
        Off. 919-254-1014 
        
        

"J Wages" <jwages@xxxxxxxxx> <mailto:jwages@xxxxxxxxx>  
Sent by: icu-pcb-forum-bounce@xxxxxxxxxxxxx 

02/16/2007 09:59 AM 

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Subject

[PCB_FORUM] Speeding up Allegro

 

 

 

        
        
        
        Hi folks, 
        Quick question and I'm pretty sure I've seen this subject
floating around before. Allegro 15.5.1 
        I'm nearing the end of routing a very large and dense design.
I'm down to cleaning up the power signals (3.3v & gnd...etc) and Allegro
is draggin' big time. What is the easiest way to reduce the time between
mouse clicks when hooking up these large pin count nets? Currently is
about 20 seconds minimum between clicks. 
        Change the shapes from dynamic to static? I've turned off the
on-line DRC, but that didn't seem to help. I know it's probably
something really obvious, but my brain has turned to mush these last
couple days. 
        Thanx in advance. 
          
        Jim S. Wages / SR. PCB Layout Designer:   
        Cary, NC - H: 919-466-1596 Cell: 919-484-2963 

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