Download and Install

First check in the README.txt file for prerequisites, these may differ for different operating systems. For example for Ubuntu, those are

$ sudo apt-get install gcc g++ gfortran make m4 perl tar

$ wget http://femhub.org/pub/femhub-0.9.8.tar
$ tar -xf femhub-0.9.8.tar
$ cd femhub-0.9.8
$ make

You can take advantage of several cores on your computer by executing

$ export MAKE="make -j9"

before typing make to compile in parallel on 9 cores.

Depending on the speed of your computer, wait between 14 minutes to 1.5 hour. That's it. It should work on any Linux, Mac and Windows (in Cygwin), if it fails, please report a bug. If you want, you can also download a binary from here, however, if it doesn't work for you, compile from source, that should always work.

How to Run FEMhub

$ ./femhub
------------------------------------------------------------
| FEMhub Version 0.9.7, Release Date: 2009-09-23           |
| Type notebook() for the GUI.                             |
------------------------------------------------------------
In [1]: notebook()

and a browser will start with the web notebook. Create a new worksheet and type the following into the cell:

import hermes2d
hermes2d.demo_layer()

Press Shift+Enter (or click the "evaluate" button) and you should see the following output:

iter=00, err_est=99.05%, DOFS=1
iter=01, err_est=86.54%, DOFS=3
iter=02, err_est=82.76%, DOFS=7
iter=03, err_est=76.92%, DOFS=21
iter=04, err_est=61.67%, DOFS=39
iter=05, err_est=43.00%, DOFS=74
iter=06, err_est=27.93%, DOFS=113
iter=07, err_est=20.37%, DOFS=156
iter=08, err_est=14.32%, DOFS=218
iter=09, err_est=11.06%, DOFS=298
iter=10, err_est= 8.01%, DOFS=412
iter=11, err_est= 5.68%, DOFS=555
iter=12, err_est= 3.86%, DOFS=714
iter=13, err_est= 2.53%, DOFS=861
iter=14, err_est= 1.66%, DOFS=1056
iter=15, err_est= 1.06%, DOFS=1223
iter=16, err_est= 0.68%, DOFS=1565