femex v.2.1.0

Research use for coding with PDE/FEM in 2D. Tested on Matlab 2013a with gcc-4.8 and gfortran-4.4.

System Requirements:

• g++/gcc-4.7+ (for c++11)
• gfortran-4.7+ and gfortran-4.4
• Matlab 2013a+(gcc-4.4+ compatible)

if you would like to use AGMG-3.0 as solver, gfortran-4.4 is also needed. Thanks to ABI(http://www.fortran90.org/src/faq.html#abi), gfortran 4.7+ can link libraries on compiled files from gfortran 4.4, since the library is backward compatible.

ILUPACK is already included for a choice of solvers.

How to use:

• For those who hadn't change the default gcc/gfortran .so files within Matlab, you should PRELOAD the system's gcc/gfortran libs first before starting Matlab.
• femex only works in shell mode, window mode will report TLS problem.

In your shell, type in something like:

export LD_PRELOAD=/usr/lib/gcc/x86_64-linux-gnu/4.8/libstdc++.so:/usr/lib/gcc/x86_64-linux-gnu/4.8/libgcc_s.so:/usr/lib/gcc/x86_64-linux-gnu/4.8/libgfortran.so

then start Matlab using

matlab -nodesktop -nosplash

• Back up Matlab's out-of-date libstdc++ dynamic library files, try to use system's library.

• Modify Makefile.in to set MATLAB_ROOT to the directory which includes bin.

• Simply add femex directory to current workspace path.

• Follow the example to set up boundary conditions.

Note:

• Since femex is built with Matlab's mex interface, it will need license for use which is not included.