7.1 psb_init — Initializes PSBLAS parallel environment
 7.2 psb_info — Return information about PSBLAS parallel environment
 7.3 psb_exit — Exit from PSBLAS parallel environment
 7.4 psb_get_mpi_comm — Get the MPI communicator
 7.5 psb_get_mpi_rank — Get the MPI rank
 7.6 psb_wtime — Wall clock timing
 7.7 psb_barrier — Sinchronization point parallel environment
 7.8 psb_abort — Abort a computation
 7.9 psb_bcast — Broadcast data
 7.10 psb_sum — Global sum
 7.11 psb_max — Global maximum
 7.12 psb_min — Global minimum
 7.13 psb_amx — Global maximum absolute value
 7.14 psb_amn — Global minimum absolute value
 7.15 psb_nrm2 — Global 2-norm reduction
 7.16 psb_snd — Send data
 7.17 psb_rcv — Receive data