The GI-Ext version 1.0 can be downloaded here To compile, you can use the provided Makefile (i.e. type "make"), but you can also type "g++ -o gi-ext -O2 ./src/main.cpp".

Our promise: the program compiles without problems. However, if you do encounter any problem, tell us (daniel.porumbel AT gmail.com) an we'll make it right.
It was successfully tested on Linux (gcc 4.1.2) and Windows (gcc 3.4.5 of Mingw) and it does NOT require any C++ special feature.

For the parallel version, you do NOT need to change the code; see in the Makefile a flat you have to activate.