NX Nastran DMAP Programmer's Guide - Kxcad.net

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INPUTT4
Inputs a matrix from a FORTRAN unit
3. The ASSIGN FMS statement is recommended for assigning the FORTRAN unit.
Selection of a proper value for IUNIT is machine dependent. If the ASSIGN
statement is not provided, then the format of the matrices on IUNIT is assumed
to be nonsparse and binary. The ASCII format requires an ASSIGN FMS
statement with the FORM = FORMATTED option. Certain FORTRAN units are
reserved, see “Making File Assignments” in the NX Nastran Installation and
Operations Guide for a listing of reserved FORTRAN units.
4. The memory required is from the first nonzero entry in the column to the last
nonzero entry.
5. Factor matrices from DECOMP and DCMP (matrix forms 4, 5, 10, 11, 13, and 15)
cannot be processed by INPUTT4.
6. If you select any of the options for endianness using the ASSIGN FMS statement,
the resulting files will be fortran readable only on systems that have the same
endianness.