sundials | Official development repository for SUNDIALS - a SUite

by LLNL C Version: v6.5.1 License: BSD-3-Clause

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kandi X-RAY | sundials Summary

sundials is a C library. sundials has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

SUNDIALS is a SUite of Nonlinear and DIfferential/ALgebraic equation Solvers. This is a mirror of current releases, and development will move here eventually. Pull requests are welcome for bug fixes and minor changes.

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Quality

Security

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Support

sundials has a low active ecosystem.

It has 358 star(s) with 94 fork(s). There are 35 watchers for this library.

It had no major release in the last 12 months.

There are 29 open issues and 115 have been closed. On average issues are closed in 178 days. There are 4 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of sundials is v6.5.1

Quality

sundials has 0 bugs and 0 code smells.

Security

sundials has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

sundials code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

sundials is licensed under the BSD-3-Clause License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

sundials releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

It has 14047 lines of code, 92 functions and 70 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

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sundials Key Features

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sundials Examples and Code Snippets

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Community Discussions

Trending Discussions on sundials

Purpose of cswrapper code, sundials solver in FMPy

how can I fixed the Jmodelica compiling error?

How to perform adjoint sensitivity in Python (preferably through CVODE)

undefined symbols remain, but shared libraries compile and seem to function properly

How to create .dll or .lib from multiple c source and header files in visual studio?

Cmake: setting rpath

QUESTION

Purpose of cswrapper code, sundials solver in FMPy

Asked 2021-Apr-06 at 09:38

About FMPy which is a python package for FMU simulation. I need one clarification : What is the purpose of cswrapper code, sundials solver or functions? Is it only required for ModelExchange type FMU simulation and not for Co-simulation type FMU simulation? https://github.com/CATIA-Systems/FMPy

...

ANSWER

Answered 2021-Apr-06 at 09:38

With the cswrapper code you can "wrap" a ME FMU as a CS FMU by adding a (sundials) solver, see https://github.com/CATIA-Systems/FMPy/issues/127. So you get from a ME a CS FMU. Additionally, the CVODE solver can be used to simulate ME FMUs in fmpy.

Source https://stackoverflow.com/questions/66950331

QUESTION

how can I fixed the Jmodelica compiling error?

Asked 2021-Feb-22 at 13:46

I am trying to compile a Modelica model (built in Dymola) using Jmodelica, but got the following error:

Compiler arguments: Generating code...
====== Model compiled successfully ======= OU44_ZoneR2C2_funcs.o:OU44_ZoneR2C2_funcs.c:(.text+0x24): undefined reference to 'ModelicaStandardTables_CombiTable1D_minimumAbscissa'
OU44_ZoneR2C2_funcs.o:OU44_ZoneR2C2_funcs.c:(.text+0xbc): undefined reference to 'ModelicaStandardTables_CombiTable1D_maximumAbscissa' OU44_ZoneR2C2_funcs.o:OU44_ZoneR2C2_funcs.c:(.text+0x1e7): undefined reference to 'ModelicaStandardTables_CombiTable1D_init2'
collect2.exe: error: ld returned 1 exit status
mingw32-make1: *** [fmume20_] Error 1
mingw32-make: *** [fmume20] Error 2
"C:/Users/taoy/AppData/Roaming/JModelica.org-2.14/MinGW/bin/mingw32-make" -f "C:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install\Makefiles\MakeFile" "PLATFORM_FLAG=-m64" "RUNTIMELIBRARY_LIB_DIR=C:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/lib/RuntimeLibrary64" "MINPACK_LIB_DIR=C:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/ThirdParty/Minpack/lib64" "SUNDIALS_LIB_DIR=C:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install\ThirdParty\Sundials/lib64" "WINPTHREADS_LIB_DIR=C:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/ThirdParty/winpthreads/lib/winpthreads64" fmume20_
mingw32-make1: Entering directory
'C:/Users/taoy/AppData/Local/Temp/1/jmc7241264750773945049out' "gcc" -m64 -std=c89 -pedantic -msse2 -mfpmath=sse -O1 "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/include/RuntimeLibrary" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/ThirdParty/FMI/2.0" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install\ThirdParty\Sundials/include" -c -o "OU44_ZoneR2C2_funcs.o" sources/OU44_ZoneR2C2_funcs.c "gcc" -m64 -std=c89 -pedantic -msse2 -mfpmath=sse "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/include/RuntimeLibrary" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/ThirdParty/FMI/2.0" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install\ThirdParty\Sundials/include" -c -o "OU44_ZoneR2C2_init_independent.o" sources/OU44_ZoneR2C2_init_independent.c "gcc" -m64 -std=c89 -pedantic -msse2 -mfpmath=sse "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/include/RuntimeLibrary" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/ThirdParty/FMI/2.0" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install\ThirdParty\Sundials/include" -c -o "OU44_ZoneR2C2_init_dependent.o" sources/OU44_ZoneR2C2_init_dependent.c "gcc" -m64 -std=c89 -pedantic -msse2 -mfpmath=sse "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/include/RuntimeLibrary" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/ThirdParty/FMI/2.0" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install\ThirdParty\Sundials/include" -c -o "OU44_ZoneR2C2_base.o" sources/OU44_ZoneR2C2_base.c "gcc" -m64 -std=c89 -pedantic -msse2 -mfpmath=sse "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/include/RuntimeLibrary" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/ThirdParty/FMI/2.0" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install\ThirdParty\Sundials/include" -c -o "OU44_ZoneR2C2_equ.o" sources/OU44_ZoneR2C2_equ.c "gcc" -m64 -std=c89 -pedantic -msse2 -mfpmath=sse "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/include/RuntimeLibrary" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/ThirdParty/FMI/2.0" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install\ThirdParty\Sundials/include" -c -o "OU44_ZoneR2C2_equ_init.o" sources/OU44_ZoneR2C2_equ_init.c "gcc" -m64 -std=c89 -pedantic -msse2 -mfpmath=sse "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/include/RuntimeLibrary" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/ThirdParty/FMI/2.0" "-IC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install\ThirdParty\Sundials/include" -c -o "OU44_ZoneR2C2.o" sources/OU44_ZoneR2C2.c
mkdir binaries\win64 "C:\Users\taoy\AppData\Roaming\JModelica.org-2.14\MinGW\bin\g++" -m64 -shared -m64 -o "binaries/win64/OU44_ZoneR2C2.dll" OU44_ZoneR2C2_funcs.o OU44_ZoneR2C2_init_independent.o OU44_ZoneR2C2_init_dependent.o OU44_ZoneR2C2_base.o OU44_ZoneR2C2_equ.o OU44_ZoneR2C2_equ_init.o OU44_ZoneR2C2.o "-LC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/lib/RuntimeLibrary64" -lfmi2 -static-libstdc++ -static-libgcc -ljmi "-LC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/lib" -L"C:\Users\taoy\Documents\Modelica Standard Library 3.2.3\Modelica 3.2.3\Resources\Library/win64/gcctdm510" -L"C:\Users\taoy\Documents\Modelica Standard Library 3.2.3\Modelica 3.2.3\Resources\Library/win64" -L"C:\Users\taoy\Documents\Modelica Standard Library 3.2.3\Modelica 3.2.3\Resources\Library" -lModelicaStandardTables -lModelicaIO -lModelicaMatIO -lzlib -lModelicaExternalC -ljmi_get_set_default -lModelicaStandardTables -lModelicaIO -lModelicaMatIO -lzlib -lModelicaExternalC -ljmi_get_set_default -llapack -lblas -l:libgfortran.a -l:libquadmath.a -lModelicaExternalC -lzlib -ljmi "-LC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install\ThirdParty\Sundials/lib64" -l:libsundials_kinsol.a -l:libsundials_nvecserial.a -l:libsundials_cvode.a "-LC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/ThirdParty/Minpack/lib64" -l:libcminpack.a "-LC:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install/ThirdParty/winpthreads/lib/winpthreads64" -l:libwinpthread.a C:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install\Makefiles\MakeFile:214: recipe for target 'fmume20_' failed mingw32-make1: Leaving directory 'C:/Users/taoy/AppData/Local/Temp/1/jmc7241264750773945049out' C:\Users\taoy\AppData\Roaming\JModelica.org-2.14\install\Makefiles\MakeFile:210: recipe for target 'fmume20' failed
Unknown program error, org.jmodelica.util.exceptions.CcodeCompilationException: Compilation of generated C code failed.
C file location: C:\Users\taoy\AppData\Local\Temp\1\jmc7241264750773945049out\sources\OU44_ZoneR2C2.c

It says model compiled successfully, but the error occurs afterwards. I looked into model, if I delete the model component "CombiTable1D from Modelica standard Library", then the error is fixed. Seems likt something is wrong with this component. However, this component is necessasy in my model.

How can this problem be solved?

...

ANSWER

Answered 2021-Feb-22 at 13:46

ModelicaStandardTables_CombiTable1D_minimumAbscissa was added in 2017, but JModelica uses a 2016 version of the MSL C-sources: https://github.com/JModelica/JModelica/blob/8982e1f4e7ca33b01b398f389b73d2398761ee9c/ThirdParty/MSL/Modelica/Resources/C-Sources/ModelicaStandardTables.c

You likely need to use an earlier version of the Modelica Standard Library (3.2.2 is included with JModelica), or a different Modelica tool since JModelica is discontinued.

Source https://stackoverflow.com/questions/66312854

QUESTION

How to perform adjoint sensitivity in Python (preferably through CVODE)

Asked 2020-Dec-15 at 12:08

I want to implement the adjoint sensitivity analysis in python, in order to determine the gradient of my objective function with respect to some parameters. In specific the objective function depends on the solution of a differential equation which in turn depends on said parameters which I am looking to find the optimum of.

To perform this there are numerous good packages both in Julia (see here), as well as CVODES from SUNDIALS, however the latter which does apparently have a wrapper made for python, does not include sensitivity analysis capabilities according to this link. Furthermore, I have looked into SALib for sensitivity analysis, but as far as I understand this refers to some other type of 'sensitivity analysis' and therefore adjoint or even forward sensitivity analysis is not included (correct me if I am wrong on this one).

Thus my question is, does a version of CVODES exist in python with sensitivity analysis capabilities, or is there there any other package where one can use in order to perform adjoint sensitivity analys?

...

ANSWER

Answered 2020-Dec-15 at 12:08

You can easily call Julia code / packages from Python with pyjulia. https://github.com/JuliaPy/pyjulia

Source https://stackoverflow.com/questions/65302689

QUESTION

undefined symbols remain, but shared libraries compile and seem to function properly

Asked 2020-Sep-21 at 09:16

My goal was to build shared libraries from SUNDIALS 2.7.0 - these are solvers of ordinary differential equations, written in C.

I've downloaded the source, and followed the installation guide:

run Cmake (with GUI), checked options "CVODE" (this is one of the available solvers - the only one I wanted), "build shared libraries" and "use generic (std-c) math libraries" and generated the Makefile.
run make && make install in the Linux console and my shared libraries got generated, with no error messages at all. Here is the output:

...

ANSWER

Answered 2020-Sep-21 at 09:16

You have undefined symbol with ldd because the so files were created without the -lm option. However it will not be a problem as long as the final executable is linked with -lm option. It is what is done for tests like test_nvector_serial which is linked with -lm -lrt.

You can see all this by running the make in a verbose mode with make VERBOSE=1. If you try to generate the executable without -lm you will have collect2: error: ld returned 1 exit status and the linker complaining about exp, pow and sqrt. if you add -lm when creating the so files ( I did it ). you will see :

Source https://stackoverflow.com/questions/63979007

QUESTION

How to create .dll or .lib from multiple c source and header files in visual studio?

Asked 2020-Sep-01 at 17:55

I have C source files and header files from the first version(1.0) of Sundials numerical solver.

https://computing.llnl.gov/projects/sundials

In the makefile information for IDA solver, it looks like this.

...

ANSWER

Answered 2020-Sep-01 at 17:55

"I would like to do the same thing in Windows 10 and visual studio (2019)..."

Here are example steps using Visual Studio 2019:

Note, because Visual Studios is by definition an IDE, it removes much of the the responsibility from the developer to know as much about make-files and command line-compile instructions. These things are done within the Visual Studios application via menus and buttons on a GUI.

On the menu bar, choose File > New > Project to open the Create a New Project dialog box.
At the top of the dialog, set Language to C++ [or C], set Platform to Windows, and set Project type to Library.
From the filtered list of project types, select [Console App], then choose Next.
In the Configure your new project page, enter some [Name] in the Project name box to specify a name for the project. Enter [StaticNameLib] in the Solution name box. Choose the Create button to open the Windows Desktop Project dialog.
In the Windows Desktop Project dialog, under Application type, select Static Library (.lib).
Under Additional options, uncheck the Precompiled header check box if it's checked. Check the Empty project box.
Choose OK to create the project.

Note: Content within italicized square brackets ( [...] ) is mine. See link below for original.

link below

Source https://stackoverflow.com/questions/63689492

QUESTION

Cmake: setting rpath

Asked 2020-Jun-15 at 09:28

I'm trying to switch from GNU Make to CMake on a C++ project. My plan is to distribute alongside the source code of my library, also the code of two external libraries that are needed.

The project is structured as follows

...

ANSWER

Answered 2020-Jun-15 at 09:25

Try to use target_link_options instead of target_link_libraries.

Source https://stackoverflow.com/questions/62385120

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install sundials

For installation directions see the online documentation, the INSTALL_GUIDE, or the installation chapter in any of the package user guides. Warning to users who receive more than one of the individual packages at different times: Mixing old and new versions of SUNDIALS may fail. To avoid such failures, obtain all desired package at the same time.

Support

Full user guides for all of the SUNDIALS packages are available online and in the doc directory. Additionally, the doc directory contains documentation for the package example programs. For information on recent changes to SUNDIALS see the CHANGELOG or the introduction chapter of any package user guide. A list of Frequently Asked Questions on build and installation procedures as well as common usage issues is available on the SUNDIALS FAQ. For dealing with systems with unphysical solutions or discontinuities see the SUNDIALS usage notes. If you have a question not covered in the FAQ or usage notes, please submit your question to the SUNDIALS mailing list.

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