6.1 psb_cdall — Allocates a communication descriptor
 6.2 psb_cdins — Communication descriptor insert routine
 6.3 psb_cdasb — Communication descriptor assembly routine
 6.4 psb_cdcpy — Copies a communication descriptor
 6.5 psb_cdfree — Frees a communication descriptor
 6.6 psb_cdbldext — Build an extended communication descriptor
 6.7 psb_spall — Allocates a sparse matrix
 6.8 psb_spins — Insert a set of coefficients into a sparse matrix
 6.9 psb_spasb — Sparse matrix assembly routine
 6.10 psb_spfree — Frees a sparse matrix
 6.11 psb_sprn — Reinit sparse matrix structure for psblas routines.
 6.12 psb_geall — Allocates a dense matrix
 6.13 psb_geins — Dense matrix insertion routine
 6.14 psb_geasb — Assembly a dense matrix
 6.15 psb_gefree — Frees a dense matrix
 6.16 psb_gelp — Applies a left permutation to a dense matrix
 6.17 psb_glob_to_loc — Global to local indices convertion
 6.18 psb_loc_to_glob — Local to global indices conversion
 6.19 psb_is_owned —
 6.20 psb_owned_index —
 6.21 psb_is_local —
 6.22 psb_local_index —
 6.23 psb_get_boundary — Extract list of boundary elements
 6.24 psb_get_overlap — Extract list of overlap elements
 6.25 psb_sp_getrow — Extract row(s) from a sparse matrix
 6.26 psb_sizeof — Memory occupation
 6.27 Sorting utilities —