Groups > sci.electronics.design > #735044

Re: LT spice speed

From	john larkin <jl@glen--canyon.com>
Newsgroups	sci.electronics.design
Subject	Re: LT spice speed
Date	2025-08-19 08:53 -0700
Organization	A noiseless patient Spider
Message-ID	<q779ak5td2hds3d5eepikca3bpptle9dvu@4ax.com> (permalink)
References	<k645aktmkvfh08rf1em4ea8qh1f3temqck@4ax.com> <alp8aklbsrrebmd6hmtft3nh1gcote0jn1@4ax.com>

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On Tue, 19 Aug 2025 08:00:12 -0400, legg <legg@nospam.magma.ca> wrote:

>On Sun, 17 Aug 2025 19:35:49 -0700, john larkin <jl@glen--canyon.com>
>wrote:
>
>>
>>Can just moving something change sim speed?
>>
>>I had a couple of 3.3 volt power supplies, each grounded and driving a
>>net name, and moved them for cosmetic reasons, and my sims got about
>>15% faster.
>
>Anything else in the sim?
>
>Did nodes change enumeration in the process?
>
>Were they originally drawn in or section-duped?
>
>RL

Just this: I did poach part of the circuit from another project. Might
that matter?

https://www.dropbox.com/scl/fi/lzzin9qphlfh51uznaio4/T820_HV_2.jpg?rlkey=6nw9snqxyual6o06oap8t490u&raw=1


After this worked, I moved the 3.3 supplies and it got faster.

This ran at 100u of real time until I did many tweaks, and got it to
average about 500.

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Thread

LT spice speed john larkin <jl@glen--canyon.com> - 2025-08-17 19:35 -0700
  Re: LT spice speed "Edward Rawde" <invalid@invalid.invalid> - 2025-08-17 22:50 -0400
    Re: LT spice speed Bill Sloman <bill.sloman@ieee.org> - 2025-08-18 23:18 +1000
    Re: LT spice speed john larkin <jl@glen--canyon.com> - 2025-08-18 06:59 -0700
      Re: LT spice speed Buzz McCool <buzz_mccool@yahoo.com> - 2025-08-18 14:04 -0700
        Re: LT spice speed john larkin <jl@glen--canyon.com> - 2025-08-18 15:49 -0700
      Re: LT spice speed Klaus Kragelund <klauskvik@hotmail.com> - 2025-08-18 23:31 +0200
  Re: LT spice speed Joe Gwinn <joegwinn@comcast.net> - 2025-08-18 11:01 -0400
    Re: LT spice speed Bill Sloman <bill.sloman@ieee.org> - 2025-08-19 03:13 +1000
  Re: LT spice speed legg <legg@nospam.magma.ca> - 2025-08-19 08:00 -0400
    Re: LT spice speed john larkin <jl@glen--canyon.com> - 2025-08-19 08:53 -0700
      Re: LT spice speed Bill Sloman <bill.sloman@ieee.org> - 2025-08-20 02:03 +1000
        Re: LT spice speed john larkin <jl@glen--canyon.com> - 2025-08-19 10:06 -0700
          Re: LT spice speed Bill Sloman <bill.sloman@ieee.org> - 2025-08-20 16:13 +1000
            Re: LT spice speed john larkin <jl@glen--canyon.com> - 2025-08-20 07:59 -0700
              Re: LT spice speed "Edward Rawde" <invalid@invalid.invalid> - 2025-08-20 11:49 -0400
                Re: LT spice speed Bill Sloman <bill.sloman@ieee.org> - 2025-08-21 04:15 +1000
              Re: LT spice speed Bill Sloman <bill.sloman@ieee.org> - 2025-08-21 03:58 +1000
              Re: LT spice speed ehsjr <ehsjr@verizon.net> - 2025-08-20 16:18 -0400

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