[Wien] WIEN2k and gfortran

[Martin Kroeker]

While it is true that MKL is in most but not all cases still a bit
faster than OpenBLAS, there are a few other points to consider:
- availability for platform where MKL is (at least to my knowledge) not available
- no license fee 
- open source, so anybody can check verify the code (and fix any bugs
  they find) rather than just hope for the best and follow Intel errata 
The drawback, as with many volunteer projects, is an unpredictable rate of progress
especially in areas that require specialist skills (such as writing optimal 
assembly code for new processors).
Incidentally OpenBLAS is the successor to the old GotoBLAS (whose author joined
the Intel MKL team after leaving academia as far as I know) which is still
mentioned in siteconfig and the Installation section of the usersguide.

-- 
Dr. Martin Kroeker            martin at ruby.chemie.uni-freiburg.de
c/o Prof.Dr. Caroline Roehr
Institut fuer Anorganische und Analytische Chemie der Universitaet Freiburg