Without NO PRINT entry, nodal and element results will be written into the out file. That is why your out file is so big. Do you use Mentat to generate your input file? If so, do not select anything for output file (please see the attached screenshot). If your input file is not created from Mentat, you just need to edit it and add NO PRINT before ahead POST entry:
Without NO PRINT entry, nodal and element results will be written into the out file. That is why your out file is so big. Do you use Mentat to generate your input file? If so, do not select anything for output file (please see the attached screenshot). If your input file is not created from Mentat, you just need to edit it and add NO PRINT before ahead POST entry: