Dear Nikon,
Not at all, these are the LP solvers that wait for the nastran input deck to enter parameters from a window, then the word "w" in the name. If you click on it you will see that a window appear in the screen requesting to enter a *.dat file:
There are 2 versions of the 64 bit nastran solver executable:
• The legacy (LP) version can only address 7.9999 GB of memory. This is the C:/siemens/nx75/nxnastran/bin/nastran64.exe. Remember that if you use this executable and specify mem=8GB or above, yoou will get error because this solver only address 8 GB, then you need to set mem=7.9GB or small, depending the amount of RAM available on your machine.
• The ILP executable (which should be installed as C:/siemens/nx75/nxnastran/bin/nastran64L.exe) is able to address any practical amount of memory.
