MYSTRAN
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NEU file doesn't support sets and double calculates
A set in Nastran/Mystran works as follows:
SET 1 = 1,2,3,10,THRU,20
DISP = 1
However, that only works for the F06/OP2, but not the NEU file (created by PARAM,POST,-1). This is a huge performance penalty because things are calculated twice.
this doesn't help and doubles runtime (2000 sec to 3900 sec).