Requirements

You need a Fortran compiler supporting the Fortran 2008 standard. Successfully tested were the compiler included in the gcc v4.6.2, and the Intel Compiler Suite 12.0.2.

When compiling with gcc, make sure both gfortran and gcc are >= v4.6.2 and that the appropriate libraries are in your LD_LIBRARY_PATH variable.

If you plan to call the library from within Wolfram Mathematica via MathLink, you obviously need Mathematica. You may have to edit the Makefile in the mathlink directory to set the paths according to your system.

How to use the code

Type make to build the library with the gcc compilers, and make INTEL=1 to build it with the Intel compilers. It can then be called from your Fortran or C/C++ code. You'll find examples on how to use it in the files src/driver.f90 and src/driver.c. A demo notebook that shows how to use the MathLink is located at mathlink/trgfast-demo.nb.

To build your own program using the trgfast library, use this command to compile when using Fortran

gfortran -fopenmp my_program.f90 libtrgfast-0.1.a

and this when using C

gcc -lgfortran -fopenmp my_program.c libtrgfast-0.1.a

You may have to adjust the path to the file libtrgfast-0.1.a or copy it into the same directory.

Troubleshooting

• The MathLink died? If there are no messages on the command line, try making sure that the trgfast library and the trg_link binary are compiled on the same physical machine as the one that is running Mathematica.

Feedback

Please send bug reports, complaints, and other feedback to vollmer@thphys.uni-heidelberg.de.