Continuing the discussion from Embedding Julia in Matlab : I’m trying to use Matlab’s foreign function interface (see the MATLAB loadlibrary function ) to call Julia code from MATLAB. Has anyone been successful in doing this? All of the projects I have found (mexjulia being the most successful) have …

When I was faced with a similar situation, I found it significantly easier to go the other way — embed Matlab in Julia using MATLAB.jl. The interoperability and extended quoting mechanisms that Julia provides makes it quite nice to have Matlab code — even a non-trivial script — inserted immediately…

But if you have a Simulink model and need one non-trivial time critical component written in Julia, than using Julia from Matlab/Simulink is the only way to go… Not easy yet, but at some point in time it should become feasible. For my usecase copying input and output parameters would not be a proble…

In this case, I thing CMEX can help, right?

So how do you create a cmex file with Julia?

IIRC, CMEX is a compiled C file. Hence, I do not see why you can’t embedded Julia code inside this C file as described here: Embedding Julia · The Julia Language

You’d just use Julia’s C embedding API with Matlab’s C mex interface. Writing and compiling custom mex files is for the birds, but once you have one that can call an arbitrary Julia code, I suppose that’s the last one you’d need to write.

@jebej I’m trying to get it to work on Linux on 1.0, and it looks like mexjulia never got full Linux functionality working. The ideal solution would be to write a mex file that can call an arbitrary Julia code like @mbauman suggests. This is what mexjulia attempted to do, but there’s so much work t…

You are right. When I mentioned CMEX, I was thinking about a scenario in which a very long and complicated computation is happening in Julia so that the startup time is negligible. I am not sure if there is a good method to keep Julia alive between calls of the CMEX.

Maybe it is not that easy as I thought it would be. I tried to use a very simple example. It compiled fine, but when I execute MATLAB crashes with the following message: fatal: error thrown and no exception handler available. InitError(mod=:Sys, error=ErrorException("could not load symbol "jl_cpu_t…

Has anyone had success using Julia from Matlab?

General Usage

tkf December 26, 2018, 1:51am 23

If that’s the case, this discussion seems to be relevant,

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Has anyone had success using Julia from Matlab?

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