[Wien] question about mixing scf calculations with different NUME in param.inc at compilation

[Tomas Kana]

Dear professor Blaha, 
Thank you for your hint. 
With best regards 
Tomas Kana 

I don't know what kind of cluster you have and how many openMP cores can 
be used there efficiently, but for such big systems a 64 core cluster 
(eg. 4 nodes with 16 cores each) with mpi might be 10 times (or more) 
faster, if you have more cores, an even larger speedup can be obtained.

The mpi-version (with ELPA !) is very efficient for such big systems.