Another software library on Hierarchical Matrices
for Elliptic Differential equations (AHMED)
by M. Bebendorf
This C++ software library implements the structure of hierarchical matrices
for the efficient treatment of discrete solution operators for elliptic
boundary value problems.
Requirements for compiling AHMED
--------------------------------
a. C/C++ compiler
Recent C and C++ compilers supporting OpenMP directives are required.
We recommend using the Intel compilers.
b. BLAS/LAPACK
Time-critical components of AHMED are based on BLAS and LAPACK
(see http://www.netlib.org/LAPACK). We recommend Intel's Math
Kernel Library (MKL) or GOTO BLAS.
c. METIS
Some parts of the library require George Karypis' graph partitioning
software METIS. It is included in many linux distributions.
Alternatively, you can obtain it from
http://glaros.dtc.umn.edu/gkhome/metis/metis/overview
d. MPI
Parallelization in AHMED is based on the Message Passing Interface (MPI).
You need a recent implementation (OpenMPI, MPICH2) unless you want only the
sequential version of AHMED.
Compiling the library
---------------------
a. The configuration of AHMED can be done via cmake. Execute
mkdir build
cd build
CC=<path to C compiler> CXX=<path to C++ compiler> cmake ..
Appending '-DENABLE_MPI=1' to the previous command activates the parallel
parts of the library. For further options use the ncurses interface via
executing "ccmake ..".
c. Compile AHMED by calling
make
Documentation
-------------
The sources are partially documented using the documentation system 'doxygen';
see http://doxygen.sf.net for further information on doxygen. The results of
doxygen can be found in the Doc/ directory. Some examples on how to use the
library can be found in the Examples/ directory.
Further information
-------------------
Further information can be obtained from the web site
http://bebendorf.ins.uni-bonn.de/AHMED.html