Improved reporting. Added per process ID possibilities

Samo Penic

2016-03-16 9154b3cc571c2461010573f84b91fcf84830cf5a

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Original written by Dan Kroll in FORTRAN. Code was then largely adapted and commented by Miha Fosnaric-Fosni. Rewritten into C by Samo Penic-Peni, with help of Miha's extensive explanations.