D.6.2. FMS Matrix Assembly Parameter MDATAU

Data Type

Integer

This parameter directs FMS to call subroutines you provide to define or modify the matrix coefficients. The following options are available:

0, Do not call the user-supplied subroutines.
1, Call the user-supplied subroutines while assembling the matrix during RSDA, RNDA, CHDA, CSDA, CNDA or RSDAF, RNDAF, CHDAF, CSDAF, CNDAF.
2, Call the user-supplied subroutines before factoring the matrix in RSDF, RNDF, CHDF, CSDF, CNDF or RSDAF, RNDAF, CHDAF, CSDAF, CNDAF.

The subroutines you need to provide depend on your matrix format, data type and matrix symmetry according to the following table:

Matrix Format	Data Type	Matrix Symmetry	Subroutines Required
PROFLIE or BLOCK	Real	Symmetric	RSUBLK
PROFLIE or BLOCK	Real	Nonsymmetric	RSUBLK, RNUBLK
PROFLIE or BLOCK	Complex	Hermitian	CHUBLK
PROFLIE or BLOCK	Complex	Symmetric	CSUBLK
PROFLIE or BLOCK	Complex	Nonsymmetric	CSUBLK, CNUBLK
SLAB	Real	Nonsymmetric	RNUSLB
SLAB	Complex	Nonsymmetric	CNUSLB