Merge branch 'pre-master-47' into bt_dev
This commit is contained in:
Brian Taylor
commit
13a3777aec
15
FAQ
15
FAQ
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@ -1,7 +1,7 @@
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Ngspice F.A.Q.Version 2.9 (ngspice-45 release)
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Ngspice F.A.Q.Version 2.10 (ngspice-46 release)
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Maintained by Holger Vogt
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Last update: Aug 29 2025
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Last update: Mar 29 2026
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This document contains the Frequently Asked Questions (and Answers)
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for ngspice project.
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@ -256,7 +256,7 @@
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The latest version released is:
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ngspice-45 (released on August 31, 2025)
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ngspice-46 (released on March 29, 2026)
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2.2. What are the latest features in the current release?
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@ -268,8 +268,9 @@
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Ngspice, as the original Spice3 (and Xspice and Cider) is a command
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line simulator, but with a graphics output capability. Excellent
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open source third party tool for schematic capture (KiCad, XSCHEM,
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Qucs-S and others) are available.
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open source third party tool for schematic capture (KiCad, XSCHEM,
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Qucs-S and others) are available
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(see https://ngspice.sourceforge.io/resources.html).
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2.4. Who are the authors of ngspice?
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@ -312,7 +313,7 @@
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a GNU C/C++ compiler and a LINUX environment to compile it. Ngspice can
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be compiled under Windows using the mingw or cygwin environment as
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well as MS Visual Studio. It will readily compile on macOS, Intel CPUs or
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Apple M1 - M4. Wasm, FreeBSD or Solaris will do, but are not officially
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Apple Silicon. Wasm, FreeBSD or Solaris will do, but are not officially
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supported.
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@ -357,7 +358,7 @@
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4.4. Disclaimer and Copyright
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Copyright: Holger Vogt, 2025
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Copyright: Holger Vogt, 2026
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License: Creative Commons Attribution Share-Alike (CC-BY-SA) v4.0.
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This document is provided as is. The information in it is not
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warranted to be correct: you use it at your own risk.
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22
INSTALL
22
INSTALL
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@ -50,7 +50,7 @@ This file describes the procedures to install ngspice from sources.
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library and ngspice as a tcl/tk library.
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Compilation to 64 bit is recommended and available per default in
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the ./compile_linux_new.sh compile script. 32 bit might be possible,
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the ./compile_linux.sh and other compile scripts. 32 bit might be possible,
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but is not tested.
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The following software must be installed in your system to compile
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@ -68,7 +68,7 @@ This file describes the procedures to install ngspice from sources.
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internal fft algorithms.
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If you want to compile the source from the git repository, or if you want to
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use the compile script ./compile_linux_new.sh, you will need additional software:
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use the compile script ./compile_linux.sh, you will need additional software:
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autoconf, automake, libtool.
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The following software may be needed when enabling additional features:
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@ -81,21 +81,22 @@ This file describes the procedures to install ngspice from sources.
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For compiling ngspice as a shared library, see section 1.4.
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1.2 Install from tarball (e.g. ngspice-45.tar.gz)
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1.2 Install from tarball (e.g. ngspice-46.tar.gz)
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This covers installation from a release distribution (for example
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ngspice-45.tar.gz, the so called tar ball).
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ngspice-46.tar.gz, the so called tar ball).
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After downloading the tar ball to a local directory, unpack it by command:
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$ tar -zxvf ngspice-44.tar.gz
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$ tar -zxvf ngspice-46.tar.gz
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Now change directories in to the top-level source directory (where this
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INSTALL file can be found).
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The most comfortable way to compile ngspice is running the compile script
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compile_linux.sh within the terminal window by ./compile_linux.sh. The
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script has to be declared as 'executable', and admin
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compile_linux.sh within the terminal window by
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sudo ./compile_linux.sh.
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The script has to be declared as 'executable', and admin
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rights are required to allow the installation of ngspice.
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CentOS users may need to add -std=c99 to the CFLAGS in the ../configure
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@ -568,7 +569,7 @@ This file describes the procedures to install ngspice from sources.
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4 NGSPICE COMPILATION UNDER macOS M1 - M4
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=======================================
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(tested on a mac mini with Sonoma 13.2.1 and M2 CPU)
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(tested on a mac mini with Sequoia 15.7.4 and M2 CPU)
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4.1 Prerequisites
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1. Install xcode command line tools
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@ -588,8 +589,9 @@ This file describes the procedures to install ngspice from sources.
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compile_macos_clang_M2_shared.sh
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5 NGSPICE COMPILATION UNDER macOS (tested with Intel CPUs)
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========================================================
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5 NGSPICE COMPILATION UNDER macOS
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(previously tested for ngspice-42 with Intel CPUs)
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================================================
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5.1 Use precompiled binary package
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1. Install an X11 interface (like Xquartz)
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34
NEWS
34
NEWS
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@ -1,3 +1,37 @@
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Ngspice-46, March 29th, 2026
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============
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- New features:
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+ Updates to BSIM4.
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+ Enable CIDER with KLU for DC, OP, and TRAN analyses.
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+ Support Exxx n1 n2 nc1 nc2 TABLE = (x0, y0, x1, y1, x2, y2).
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+ Add analog code model astate, which reports previous states of a node.
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+ Improve code model pwlts by adding breakpoints.
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+ new functions vec() and var() for .param expressions.
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+ Add variable deltacheck to measure the CKTdelta[0].
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+ Remove ancient IPC code.
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+ Update to VDMOS model.
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+ Equalise the last two time steps before a breakpoint.
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+ Update to diode model, especially for the sidewall diode.
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+ Enable optional voltage based truncation error correction.
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+ Add a function m3avg(vector) for filtering of trap ringing.
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+ Remove ngnutmeg from build list of old apps.
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+ Add filtering by moving window with function 'newvec = mtimeavg(vec)'.
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+ If compat mode PS, GND is not declared as global, and is not
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replaced inside of a subcircuit.
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+ New variable measureprec to set the number of digits for 'meas' outputs.
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+ Improve paramerization for V PULSE source.
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+ Add parameter m (multiplier), while translating from G or F source
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to code model spice2poly.
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+ Allow Cd as a valid C reference designator for a capacitor.
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+ Prepare for binning of N devices.
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+ Add parameter numPeriod to 'fourier' command.
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+ FM and FC exchange place in the parameter sequence of SFFM v and i source.
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+ Diode soft recovery model with iterated charge node.
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+ 'linearize' command with new parameter np=xx, xx may be a number or auto2n.
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+ update to the 'fft' command on scaling and frequency binning.
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+ Remove 'skywater' option, replace by equivalent variable 'no_auto_braces'.
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Ngspice-45.2, Sept. 5th, 2025
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============
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- Bug-fix release
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@ -16,7 +16,7 @@
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# problem to the user.
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AC_PREREQ([2.70])
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m4_define([ngspice_major_version], [45+])
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m4_define([ngspice_major_version], [46+])
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m4_define([ngspice_minor_version], [0])
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m4_define([ngspice_version],
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[ngspice_major_version])
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@ -117,7 +117,7 @@ LT_INIT([shared static])
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# --> Set 'LT_NGSPICE_AGE' to 0.
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LT_NGSPICE_CURRENT=0
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LT_NGSPICE_REVISION=13
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LT_NGSPICE_REVISION=15
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LT_NGSPICE_AGE=0
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LIBNGSPICE_SO_VERSION=$LT_NGSPICE_CURRENT.$LT_NGSPICE_REVISION.$LT_NGSPICE_AGE
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@ -8426,7 +8426,7 @@ static void inp_quote_params(struct card *c, struct card *end_c,
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{
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bool in_control = FALSE;
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if (ft_skywaterpdk)
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if (cp_getvar("no_auto_braces", CP_BOOL, NULL, 0))
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return;
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if (newcompat.hs && cp_getvar("no_auto_braces", CP_BOOL, NULL, 0))
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@ -23,7 +23,7 @@ Author: 1985 Wayne A. Christopher, U. C. Berkeley CAD Group
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bool ft_acctprint = FALSE, ft_noacctprint = FALSE, ft_listprint = FALSE;
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bool ft_nodesprint = FALSE, ft_optsprint = FALSE, ft_noinitprint = FALSE;
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bool ft_norefprint = FALSE, ft_skywaterpdk = FALSE;
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bool ft_norefprint = FALSE;
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bool ft_ngdebug = FALSE, ft_nginfo = FALSE, ft_stricterror = FALSE, ft_spiniterror = FALSE;
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bool ft_codemodelerror = FALSE, ft_osdierror = FALSE;
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@ -309,8 +309,6 @@ cp_usrset(struct variable *var, bool isset)
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ft_ngdebug = isset;
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} else if (eq(var->va_name, "nginfo")) {
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ft_nginfo = isset;
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} else if (eq(var->va_name, "skywaterpdk")) {
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ft_skywaterpdk = isset;
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} else if (eq(var->va_name, "noinit")) {
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ft_noinitprint = isset;
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} else if (eq(var->va_name, "norefvalue")) {
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@ -38,6 +38,11 @@ extern int EVTsetup_plot(CKTcircuit* ckt, char* plotname);
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extern IFsimulator SIMinfo;
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extern char Spice_Build_Date[];
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extern unsigned long long getMemorySize(void);
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extern unsigned long long getPeakRSS(void);
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extern unsigned long long getCurrentRSS(void);
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extern unsigned long long getAvailableMemorySize(void);
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static int beginPlot(JOB *analysisPtr, CKTcircuit *circuitPtr, char *cktName, char *analName,
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char *refName, int refType, int numNames, char **dataNames, int dataType,
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bool windowed, runDesc **runp);
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@ -60,6 +65,7 @@ static bool getSpecial(dataDesc *desc, runDesc *run, IFvalue *val);
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static void freeRun(runDesc *run);
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static int InterpFileAdd(runDesc *plotPtr, IFvalue *refValue, IFvalue *valuePtr);
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static int InterpPlotAdd(runDesc *plotPtr, IFvalue *refValue, IFvalue *valuePtr);
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static inline int vlength2delta(int len);
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/*Output data to spice module*/
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#ifdef TCL_MODULE
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@ -550,6 +556,25 @@ OUTpD_memory(runDesc *run, IFvalue *refValue, IFvalue *valuePtr)
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{
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int i, n = run->numData;
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#ifndef __APPLE__
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if (!cp_getvar("no_mem_check", CP_BOOL, NULL, 0)) {
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/* Estimate the required memory */
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int timesteps = vlength2delta(0);
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size_t memrequ = (size_t)n * timesteps * sizeof(double);
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size_t memavail = getAvailableMemorySize();
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if (memrequ > memavail) {
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fprintf(stderr, "\nError: memory required (%zu Bytes), made of\n"
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" %d nodes and approximately %d time steps,\n"
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" is more than the memory available (%zu Bytes)!\n",
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memrequ, n, timesteps, memavail);
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fprintf(stderr, "Setting the output memory is not possible.\n");
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controlled_exit(1);
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}
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}
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#endif
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for (i = 0; i < n; i++) {
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dataDesc *d;
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@ -250,7 +250,6 @@ extern bool ft_stricterror;
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extern bool ft_spiniterror;
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extern bool ft_codemodelerror;
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extern bool ft_osdierror;
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extern bool ft_skywaterpdk;
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/* parse.c */
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@ -124,7 +124,11 @@ are of type bool if sharedspice.h is used externally.
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*/
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#ifndef NGSPICE_PACKAGE_VERSION
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<<<<<<< HEAD
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#define NGSPICE_PACKAGE_VERSION "45+"
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=======
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#define NGSPICE_PACKAGE_VERSION "46+"
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>>>>>>> pre-master-47
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#endif
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/* we have NG_BOOL instead of BOOL */
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#ifndef HAS_NG_BOOL
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@ -85,6 +85,8 @@ DIOask (CKTcircuit *ckt, GENinstance *inst, int which, IFvalue *value,
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return(OK);
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case DIO_CHARGE:
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value->rValue = *(ckt->CKTstate0+here->DIOcapCharge);
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if ((here->DIOqpNode > 0) && (here->DIOtTransitTime!=0))
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value->rValue += here->DIOqpGain * *(ckt->CKTstate0 + here->DIOsrcapCharge);
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return(OK);
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case DIO_CAPCUR:
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value->rValue = *(ckt->CKTstate0+here->DIOcapCurrent);
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@ -15,7 +15,7 @@
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#define PACKAGE "ngspice"
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/* Version number of package */
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#define VERSION "45+"
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#define VERSION "46+"
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/* Define the directory for executables */
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#define NGSPICEBINDIR "../bin"
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