## psb_info -- Return information about PSBLAS parallel environment

    call psb_info(icontxt, iam, np)

This subroutine returns information about the PSBLAS parallel environment, defining a virtual parallel machine.

Type:
  Asynchronous.
On Entry
icontxt
  the communication context identifying the virtual parallel machine.
  Scope: global.
  Type: required.
  Intent: in.
  Specified as: an integer variable.

On Return
iam
  Identifier of current process in the PSBLAS virtual parallel machine.
  Scope: local.
  Type: required.
  Intent: out.
  Specified as: an integer value.
np
  Number of processes in the PSBLAS virtual parallel machine.
  Scope: global.
  Type: required.
  Intent: out.
  Specified as: an integer variable.

Notes

1. For processes in the virtual parallel machine the identifier will satisfy ;
2. If the user has requested on `psb_init` a number of processes less than the total available in the parallel execution environment, the remaining processes will have on return ; the only call involving `icontxt` that any such process may execute is to `psb_exit`.