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

444 HP MLIB User’s Guide
SBCOMM/DBCOMM/CBCOMM/ZBCOMM Block coordinate matrix-matrix multiply
bjndx( ) Integer array of length bnnz consisting of the block
column indices of the block entries of A.
bnnz Number of block entries.
lb Dimension of dense blocks composing A.
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.