using Sundials

[ghost]

Why is this happening??

[ivarne]

Sundials.jl is a wrapper for a c library, and it looks like julia can not find the compilled module (.dll files on windows)

Reading the https://github.com/tshort/Sundials.jl/blob/master/README.md file says that you have to have sundials installed on your system before it is suposed to work. It looks like you need to install that first from http://computation.llnl.gov/casc/sundials/main.html , but I have no idea how to tell the Julia Sundalis.jl wrapper where to find the libsundials_cvode library on windows. It might just work, but I don't use windows.

If this does not help, try to ask on the julia-users mailing list, which might be a more appropriate forum get help on using Julia. Closed github issues does not rank high in google, so it will be hard for others to find the solution to this problem later.

[ghost]

@ivarne ..Well Sundials is installed in my system, but I guess julia cannot find the path for sundials-libraries.
have you worked with sundials? If yes, then as you use linux, does the sundials libraries get automatically linked up while using Pkg2.add("Sundials").
Or, how to link up the sundials library with Julia?

[mlubin]

This should be filed as an issue under https://github.com/tshort/Sundials.jl. I'd suggest taking a look at using BinDeps for finding the library.

[ViralBShah]

Cc @tshort

[ghost]

Sir,
I am trying the same thing in Linux. I have used, Ubuntu Software Center to Install 'libsundials-serial-dev:i386'.
Then,

I am unable to solve the problem.

[pao]

Going out on a limb based on the error message--32-bit Sundials (":i386" multiarch package) and 64-bit Julia? Try installing libsundials-serial-dev:amd64.

[ivarne]

I managed to install Sundials on OSX from source using cmake, but it took a lot documentation reading before I managed to build the required shared libraries.

after downloading sundials i tried

./configure --enable-shared
make
sudo make install

but the resulting shared library was empty, and I got missing symbols.

Then i tried to build using cmake

cmake ../sundials -i
# lots of options
Variable Name: BUILD_SHARED_LIBS
Description: Build shared libraries
Current Value: OFF
New Value (Enter to keep current value): on
# lots of more options

make
sudo make install

And then it seems to work (but I have not tested that the calculations are reasonable)

[ivarne]

I have not installed Julia on a Windows computer, so I have no opportunity to test this. If you are able to locate your sundials install dir and find the directory that contains (lib)sundials_cvode.dll, the proper way to tell Julia where to find it is to call

push!(Sys.DL_LOAD_PATH, "C:\path\to\sundials")

[ViralBShah]

How did you install sundials? I believe that sundials may not be building a shared library by default.

[ViralBShah]

On ubuntu, with libsundials-serial-dev, I do notice that the shared library is included, and the example does work. @pao 's suggestion is right - just install libsundials-serial-dev or libsundials-serial-dev:amd64.

brew on mac does not build sundials as a shared library by default, but passing the configure option --enable-shared does build the shared libraries. @staticfloat Do you think we can request the brew folks to include --enable-shared in the sundials build?

[staticfloat]

Homebrew/legacy-homebrew#22052

[mlubin]

@staticfloat we'll also need to get BinDeps to pass that option to homebrew. There currently isn't syntax for that.

[ghost]

@ViralBShah ..Thanx sir, for the reply, waiting for the weekend....will give another try to solve as per the suggestions.....

[staticfloat]

@mlubin Adam suggested we just always build the shared library. So I've changed the PR to do that. (Kind of dodging the issue at hand, but perhaps that's alright)

[staticfloat]

We've got shared libraries on brew now.

[ViralBShah]

@deepraj222 Can we close this one?