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
Then download, unpack, build FEMhub:
$ 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.
If you encounter problems, let us know through the FEMhub mailing list.
Run It!
$ ./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
