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Date: | Sat, 15 Mar 2014 09:41:55 -0600 |
From: | Tom Russo <tvrusso AT sandia DOT gov> |
To: | geda-user AT delorie DOT com |
Subject: | Re: [EXTERNAL] [geda-user] gschem and ngspice simulation |
Message-ID: | <20140315154155.GU77723@goldstein.sandia.gov> |
References: | <53246DFD DOT 7030002 AT systella DOT fr> |
<20140315153508 DOT GT77723 AT goldstein DOT sandia DOT gov> | |
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On Sat, Mar 15, 2014 at 09:35:08AM -0600, Tom Russo <tvrusso AT sandia DOT gov> wrote: > On Sat, Mar 15, 2014 at 04:13:01PM +0100, BERTRAND Jo?l <joel DOT bertrand AT systella DOT fr> wrote: > > .OPTIONS NOPAGE NUMDGT=6 UNITS=Degrees WIDTH=104 ABSTOL=0.00 > > +CHGTOL=0.00 DEFL=0.00Meg DEFW=0.00Meg GMIN=0.00 PIVREL=-1.798E+306 > > +PIVTOL=0.00 RELTOL=-1.798E+306 TEMP=20.00 > > It's these options, specifically the RELTOL setting. Why would you use > effectively negative infinity for the solver tolerance? > > Remove RELTOL=-1.798E+306 and your circuit runs. Sorry, I mean remove PIVREL, PIVTOL and RELTOL settings and it runs. And it is not a great idea to set the abstol and chgtol to zero, either, even though this particular circuit runs fine with those settings. -- Thomas Russo * tvrusso AT sandia DOT gov * Tel: (505) 844-8644 Dept 1355, Electrical Models & Simulation * FAX: (505) 284-2518 Mail Stop 1177, Sandia National Laboratories *PAGER: (505) 283-2623 Albuquerque, NM 87185-1177 * CELL: (505) 469-0161 Give a man a program and you frustrate him for a day. Teach him to program and you frustrate him for life. --- Anonymous EXCEPTIONAL SERVICE IN THE NATIONAL INTEREST Sandia is a multiprogram laboratory operated for the United States Department of Energy by Sandia Corporation, a Lockheed Martin Company.
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