Openspice#393

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Kreijstal wants to merge 115 commits intoPySpice-org:masterfrom

Kreijstal:OpenSpice

Commits on Nov 24, 2024

Bumping NgSpice version
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Exception ignored from cffi callback <function NgSpiceShared._background_thread_running at 0x000000004999c720>, trying to convert the result back to C:
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Commits on Nov 25, 2024

Don't error on halt
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Commits on Jan 12, 2025

Add OpenSPICE native Python simulator support

Roman Parise
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First commit

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Add matrix solving

Roman Parise
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Add a test circuit with independent current sources

Roman Parise
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Added inductors, capacitors, and independent current sources

Roman Parise
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Make solver more efficient

Roman Parise
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Intro behavioral source. Root eval implementation

Roman Parise
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Added highly nonlinear, generic, simple solver. Still has bugs

Roman Parise
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noodle terminates. Still need to fix mismatches with yspice

Roman Parise
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Really trying here. Getting values that at least aren't ludicrous

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Added comparison test

Roman Parise
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Broyden's method solver works!

Roman Parise
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Limit function in OpenSPICE

Roman Parise
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OpenSPICE about 200x slower. Time to start optimizing

Roman Parise
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Halved time by removing sympy

Roman Parise
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Should have had this the whole time

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Doubled speed again by optimizing imports

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300x slowdown using OpenSPICE for transient... time to start closing the gap :)

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Optimize lambda eval to close gap to 100x slowdown

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Add profiling script

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Somehow broyden2 gives 20% speedup over broyden1

Roman Parise
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Now in the vicinity of about 10x slowdown

Roman Parise
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Whoops. There was a bug. About 10x slowdown now.

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Optimize away one of the evals

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Marginal import optimization

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Got transient with sine waves working

Roman Parise
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Hacked netlist translation from ngspice PySpice interface

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Fix some bugs

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Fix some node indexing bugs

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Fixed current sources

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Test netlist

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Remove dead cmp test

Roman Parise
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Remove a lot of unnecessary OpenSPICE files

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Get examples passing. Many tests excluded. No guarantee of correctness.

Roman Parise
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Made some headway on AC analysis. Need to figure out complex number hack for scipy.optimize.root.

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Enable fundamental laws tests

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Got passive test yielding results. Not sure if they're correct

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Fixed broken transient sims

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Enable passive test and results dumping

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Make dumping optional

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Additional transient parameter support added

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Fixed remaining bug breaking examples

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Can parse resistors

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Cleaned up resistor parsing

Roman Parise
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Added capacitor support. No test yet.

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Fixed capacitor support

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Organize code better

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Added inductor support

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Fixed RLC bugs

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Technical plan for OpenSPICE revamp

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Devplan

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Added vsources

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Added isources

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Check off current sources from todo list

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Add external sources

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Add VCCS to parser

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Add generic dependent source formatting

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Added full linear dependent source support

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Checked off linear dependent sources from todo list

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Add scaffolding for behavioral sources. Fix later.

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Administrative changes for behav sources

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Add behavioral source todo

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Add initial scaffolding for control expression

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Added control parsing logic. No testing yet.

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Op point parsing working

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Basic tran working

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Updated TODOs file

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Added another comment todos file.

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Broke off component classes into components.py file

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Add strategy pattern skeleton to eqnstr.py

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Basic KCL op point formatting working

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Enabled equation generation for op point sims

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Modify common formatting to support most of the behavioral source syntax

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Move function to abstract class

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Move another function to abstract class

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Added transient equations

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Transient equations working

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Get OpenSPICE preliminary top level script working

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Remove unnecessary context object

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Fixed equation string formatting for op pt sims

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Fixed transient sim eqn gen

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Add initial conditions to eqnstr

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Solvers works, but spits out incorrect result

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Fixed op point bug

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Narrowed down bizarre bug

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Added transient solver code

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Updated eqn generation for transient sims

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Finish up basic OpenSPICE script

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Basic OpenSPICE integration

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Fixed some parser issues

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Enable Thevenin test

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Enabled voltage divider test

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Fix SI unit regex

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Fixed bug in transient sim

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Refactor components.py

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Clean up common.py

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Document components library

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Document eqnstr.py

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Add documentation to genout.py

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Add assertions to genout

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Add documentation to netlist.py

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Remove useless comment from netlist.py

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Add documentation to solve.py

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Add documentation

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Update documentation with mainpage

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If-else branch OS removed.

gdetor
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Fix Windows issue

thejackal360
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