HP MLIB User's Guide Vol. 1 7th Ed.

448 HP MLIB User’s Guide
SBDIMM/DBDIMM/CBDIMM/ZBDIMM Block diagonal matrix-matrix multiply
ibdiag( ) Integer array of length nbdiag consisting of the
corresponding indices of the nonzero block diagonals of
A in val( ).
nbdiag Number of nonzero block diagonals in A.
lb Row and column dimension of the dense blocks
composing val.
b( ) Rectangular array with leading dimension ldb.
ldb Leading dimension of b.
beta Scalar parameter.
c( ) Rectangular arrary with leading dimension ldc.
ldc Leading dimension of c.
work( ) Scratch array of length lwork. Not used.
lwork Length of work array.