6.23 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 psb_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.