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psb_get_boundary -- Extract list of boundary elements 

call psb_get_boundary(bndel, desc, info)

Type:
Asynchronous.
On Entry
desc
the communication descriptor.
Scope:local.
Type:required.
Intent: in.
Specified as: a structured data of type descdatapsb_desc_type.

On Return
bndel
The list of boundary elements on the calling process, in local numbering.
Scope: local
Type: required
Intent: out.
Specified as: a rank one array with the ALLOCATABLE attribute, of type integer.
info
Error code.
Scope: local
Type: required
Intent: out.
An integer value; 0 means no error has been detected.

Notes

  1. If there are no boundary elements (i.e., if the local part of the connectivity graph is self-contained) the output vector is set to the ``not allocated'' state.
  2. Otherwise the size of bndel will be exactly equal to the number of boundary elements.