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Some blog posts on Julia
4 posts by 3 authors  



Chris Rackauckas 	

Feb 23


Hey,
  I wanted to let everyone know I put a few blog posts out there on Julia. You can find them here:

http://www.stochasticlifestyle.com/

  I am by no means an expert on Julia, but I put some tutorials for some ways I have been using Julia, like how to use Julia on the XSEDE Comet HPC (which you can test out too via a startup allocation!), optimizing some FEM codes, etc. After I publish a few things I'll get back onto this and document some experiments I am doing like interfacing with the Xeon Phi and writing stochastic (partial) differential equation solvers. I hope these tutorials helps somebody out. And feel free to comment. I still have lots to learn about Julia as well.
 


Jeffrey Sarnoff 	

Feb 23


I found "Using Julia's C interface" clear, clean, copyable.  Thanks for contributing.
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Tim Holy 	

Feb 23


On this one: 

http://www.stochasticlifestyle.com/multi-node-parallelism-in-julia-on-an-hpc/ 

it looks like you're running performance-critical code at global scope. If you 
put it in a function (and check that it's type-stable, etc), your single- 
threaded code might outperform your parallel version. (Of course, you can 
combine the two to do even better, sometimes.) 

See http://docs.julialang.org/en/stable/manual/performance-tips/ 

--Tim 
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Chris Rackauckas 	

Feb 23


It's not in the global scope. I always wrap it in a function call. Maybe I should make that more explicit.
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