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set_p_adjcncy -- Set process adjacency list 

call desc%set_p_adjcncy(list)

Type:
Asynchronous.
On Entry
list
the list of adjacent processes.
Scope: local.
Type: required.
Intent: in.
Specified as: a one-dimensional array of integers of kind psb_ipk_.
Note: this method can be called after a call to psb_cdall and before a call to psb_cdasb. The user is specifying here some knowledge about which processes are topological neighbours of the current process. The availability of this information may speed up the execution of the assembly call psb_cdasb.