[PCB_FORUM] Re: System requirements for 15.2

 
I have a dual 2.66 GHz Xeons w/ 2 GB of memory.  I still get lags on large
boards with lots of planes.  I am going to try 3 GB of memory (the most I
can stick in it), but there was almost NO improvement from 1 GB to 2, so I
don't think that's going to help :(
 
There are some differential pairs that have a 20 second lag in them from the
time I start sliding to the time they actually move.
 
Sure would be nice if Cadence would multi-thread Allegro so it could
actually USE both processors.  It's going to get worse as Intel switches to
multi-core processors instead of increasing bus speeds.
-- 
George Patrick
Tektronix, Inc.
Central Engineering, PCB Design Group
P.O. Box 500, M/S 39-512
Beaverton, OR 97077-0001
Phone: 503-627-5272         Fax: 503-627-5587 <http://www.tektronix.com/> 
http://www.tektronix.com     <http://www.pcb-designer.com/>
http://www.pcb-designer.com

It's my opinion, not Tektronix' 

-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Sawyer Jayne
Sent: Thursday, May 19, 2005 14:34
To: icu-pcb-forum@xxxxxxxxxxxxx
Cc: Anderson Gary; Cech Charles
Subject: [PCB_FORUM] System requirements for 15.2



 

Since moving to 15.2 and positive planes we have been experiencing
considerable lag time when running DRC, using the electrical constraints for
diff pairs or doing edits to the planes. 

 

The boards we are having issue with are 

17" X 14"

16 layers

23477 connects

24000 via

 

We are looking to upgrading our hardware. I am hoping that some one in the
group might be working with similar conditions and already have updated to a
machine that could handle it. If any one can help me to spec a capable
machine please let me know.

 

Thanks in advance,

Jayne Sawyer

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