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#analog-design
Title
# analog-design
m

mehdi

02/20/2022, 10:21 PM
Has anyone successfully set up the multithreading on ngspice? Or if there is some other nice tools for spice simulations? I am trying to run the design, but since it is only running on single core, it is taking forever.
@User
d

David Fleischer

02/20/2022, 11:15 PM
Hi Mehdi, apparently LTSpice uses a multi-threaded solver
👍 2
e

Eric Smith

02/21/2022, 1:14 AM
To get best performance from ngspice with SkyWater make sure you follow these instructions. http://ngspice.sourceforge.net/applic.html#sky
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t

Tuohang Zeng

02/21/2022, 1:17 AM
Thanks @User I will take a look!
Thank you @User I will follow those steps and give that a try
t

Tim Edwards

03/03/2022, 10:42 PM
@User: Use
xyce
, and take a look at the #xyce channel. But ngspice will take ages to start up if you don't use the startup file (
spinit
) that is distributed with open_pdks, or at least duplicate those settings (which have to be in a file in your run-time directory called
.spiceinit
). With the startup settings, ngspice is still slower than xyce, though.
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