# Benchmarking a simple PDE algorithm in Julia, Python, Matlab, C++, and Fortran

**URL:** <https://discourse.julialang.org/t/benchmarking-a-simple-pde-algorithm-in-julia-python-matlab-c-and-fortran/5002>\
**Category:** Numerics\
**Tags:** diffeq\
**Created:** [July 21, 2017, 5:44pm UTC](https://discourse.julialang.org/t/benchmarking-a-simple-pde-algorithm-in-julia-python-matlab-c-and-fortran/5002 "2017-07-21T17:44:14Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![John\_Gibson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/john_gibson/32/5321_2.png) [@John\_Gibson](https://discourse.julialang.org/u/John_Gibson)\
**Post date:** [July 22, 2017, 12:01pm UTC](https://discourse.julialang.org/t/benchmarking-a-simple-pde-algorithm-in-julia-python-matlab-c-and-fortran/5002/11 "2017-07-22T12:01:47Z")

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> [@bernhard](#):
>
> That is a nice benchmark indeed. I tried to open the link of the Julia ‘unrolled’ version. The hyperlink in the notebook points here [https://render.githubusercontent.com/view/codes/ksintegrateUnrolled.jl](https://render.githubusercontent.com/view/codes/ksintegrateUnrolled.jl) which is a file that does not exist.
> 
> I later realized, that simply ‘clicking’ the hyperlink opens the right version of the code on Github. So I found the code. However, I am very much used to ‘Open in new tab’ or download a file through right click, both of which failed for me on this link. Any idea why this is not working? Is this a general issue with Jupyter notebooks (I have no experience with Jupyter).

Thank you! Links in these documents are not direct, but typically route a file specified in the URL through a “viewer” webservice that reads the file, translates it to nicely formatted HTML, and displays that.

For example, the URL [http://nbviewer.jupyter.org/url/www.channelflow.org/iam961/iam961-hw3.ipynb](http://nbviewer.jupyter.org/url/www.channelflow.org/iam961/iam961-hw3.ipynb) reads the file [iam961\_iam961-hw3.ipynb [channelflow.org]](http://www.channelflow.org/iam961/iam961-hw3.ipynb) and routes it through the nbviewer ipynb renderer at [nbviewer.jupyter.org](http://nbviewer.jupyter.org). I believe the Markdown links work similarly.

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