c-mex vs java

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William
William on 11 Apr 2014
Commented: lior on 11 Jun 2015
How does the performance compare between writing code in c vs writing code in java.
I know I can get better performance with c theoretically but also at a much higher cost of writing the software and bugs being more common. Java has added support for things like NUMA aware threading and is adding support for HSA, transactional memory etc.
I know I can easily write some c and compile it as a mex file. It looks like I can also trivially write a java class and compile that also to use in MATLAB.
If I run a java class that I have compiled does it lose any performance running on the jvm inside MATLAB vs running outside of MATLAB?
I have been writing code professionally for about 15 years now and I can handle java or c I am just interested in feedback on which direction makes more sense. I would like to speed up my simulations beyond how they are performing already in MATLAB but I also want them to be correct.
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lior
lior on 11 Jun 2015
William, I am having the same question. Did you found an answer?

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