I downloaded the linked tar file into a VM and unpacked it. It contains some FORTRAN source files, a makefile, and some nondescript files. The makefile specifies the Portland compiler, which is commercial software. I have no license for this, so i could not compile the source - at least not in the way it is supposed to be compiled.
But there is an executable "blub", which seems to be what the makefile produces, so i tried to run this. Unfortunately it complains about a commercial library for numeric operations (
NAG libraries) which is missing Obviously the version of "blub" in the tar-file is linked against that library.
Sorry, but i can't help you - i won't buy a compiler or a library just for tests. Probably all the others here will see that the same way.
I had a cursory glance at the source, but there is nothing obviously wrong. That does not necessarily mean that the program is correct, but there is no trivial error to spot.
Good luck.
bakunin